Indicating device for use with a dispensing device

The Invention relates to an aerosol dispenser of the preamble explained by claim 1 Art.

On Aerosol dispenser of this type is described in WO-A-92 09324 discloses. The dispenser includes a Means for indicating the amounts of the doses that have been dispensed from a medication container or remain in it. The device includes a worm gear directly display devices applied in the form of a counting ring. The counting ring is provided on its periphery with a plurality of teeth and is adapted to that it to about parallel or substantially parallel axes linear Movement of the container while the output can rotate.

The GB-A-2191032 describes a Anzeiggerät for an aerosol dispenser that having a display part, which has the form of a linear rack, parallel to the direction of movement of the container by a movement in a one stop screw is driven by a number projections applied to the linear rack.

The EP-A-488 609 discloses a powder inhaler and not an aerosol dispenser. The powder inhaler contains a counting unit, having a worm gear which is formed so that it directly drives a gear at the same time the dose indicator forms.

The US-A-5,482,030 describes an aerosol counter including a direct drive includes an indicator wheel, wherein the ratchet wheel is attached directly to the display wheel.

The The present invention relates generally to a display device and more particularly to a display device for displaying the number metered doses of a medicament, issued or remain in a dispenser.

delivery systems and in particular output devices have been developed which, or a counting contain dose indicating device to indicate the number of metered doses indicate a substance that output from system administration were, or to indicate the number of doses remaining therein. For example, patients, several problems, which may be treated with drugs, which in an aerosol are distributed, and are administered to the patient by inhalation. In one embodiment, will contain the aerosol and the drug in a vessel and in metered or metered doses issued by the Dispensergerät, the one Betätigerschuh may contain. In such an arrangement it may be important for the patient be that the number of newly-measured doses remaining in the container, sure can be determined either by a display of it remaining number or by knowing the number, the has already been spent, so that the patient does not abruptly with an empty container will face when he takes the drug. Accordingly, it will be important to provide an accurate indication of when Dispensergerät, either the number of doses remaining in the container or the number of doses has already been spent.

Usually contains a conventional aerosol container a housing and a valve tappet which relative to the housing depressed can be, so that it and a metered dose of an aerosol a medicament outputs. The container is usually a predetermined number supplied premeasured doses supplied, for example, in the size range of about 200, so that the count the number of printing operations on the valve stem and the corresponding number of issued, delivered premeasured doses directly the number of doses is related, which remain in the container.

in the Use, the container usually in a housing the Dispensergerätes was added, with the valve in engagement with a support block in housing is brought. The user supplied with the medicine by he container to relative to the housing moved so as to the valve stem and an inner valve presses, and thereby releases a metered dose, usually the user via an aperture or a mouthpiece supplied is that the housing itself extends. In an alternative delivery system, the metered dose first be issued in one chamber and then administered to the patient. Once the metered dose has been dispensed from the container, presses the usually spring-loaded The valve tappet container the supporting block away, so that the container again moves relative to the housing. In this way, a metered dose of a medicament, during each Cycle of linear reciprocal movement of the container relative for housing output.

Some Dispensergeräte have indicators that the linear reciprocating Movement of the container relative to the housing convert it into a disposable or single-cycle moving an indicator, wherein said indicator relative to the filling state of the container Number of metered doses remaining therein or the number the doses administered were already identified. Although this Dispensergeräte with indicators have the advantage that they are generally able <?page 3?>are, to track the number of doses, remains room for improvement. For example, displays this type complex, contain moving parts that are difficult to assemble and costly in manufacture. Such devices can still prone be for Zählungenauigkeiten by the formation of the displaying or the cooperating Parts or can an excessive space within the housing claim to the relatively large or diverse, take moving parts. Other disturbing or interfering with the air flow and the from the inhaler issued medication. Alternatively, some devices use a electrical circuitry to count the expenditure or track. such devices can However, be relatively expensive to manufacture and usually require a Power source, damage to a in a variety of environments, such as in damp Environments may be subject.

Short specifically, the present invention relates to a Dispensergerät according to claim 1 directed, having a display device. are the measured Dispensergerät Doses of a substance from a container made of, having a valve, the moveable between a closed and an open position is. The container outputs a metered dose when the valve is operated by a valve stem, in the open position has been moved. The Dispensergerät includes a housing is formed so that it back and forth within the container the housing along a longitudinal direction superimposed. The housing has a bore hole that is formed so that it accommodates the valve tappet, and contains a discharge port. The wellbore communicates with the opening in conjunction, so that the metered dose of the substance by spent the opening , when the valve tappet in the open position has been moved.

When display contains a display unit a worm transversely to the housing about an axis longitudinal axis and according to the movement of the reciprocating movement of the container in the housing rotatably is mounted so that the longitudinal movement the container relative to the housing causes the screw to rotate about its axis. A display part contains Dosage Advertisements for the user are visible, and a circular gear, the order in the housing a Axis transverse to the axis of the worm and non-parallel to the longitudinal axis is mounted. The circular Gear is in engagement with the worm.

The includes display unit Further, a ratchet wheel, which is rotatably mounted in the housing and formed so is that it is relatively to the reciprocating movement of the container for housing along the longitudinal axis responsive. The ratchet wheel is connected to the screw, so that the rotation of the ratchet causes the worm gear rotates about its axis.

In addition, an actuating member, which includes an arm, preferably mounted within the housing and is formed so that it moves in response to movement of the container and operatively connected the ratchet is engaged to the wheel depending with the longitudinal movement the container relative to the housing to turn.

Also contains the display part in the first preferred embodiment, an indicator wheel, the axial circular with the Gear is mounted on an axis the axis of rotation of the display part defined. The dose indicator is on the surface of the Indicator wheel applied.

On actuating member in the housing mounted and is influenced by the movement of the container. The actuating member occurs in a selective manner with at least one of the plurality of tooth of the first display part engaged to the first display part to a dividing step in accordance with the movement of the container relative to the housing forward to move.

Prefers in the housing a spring disposed to the operating member in engagement with the container to leave.

According to a further aspect of the invention, the display unit includes the ratchet wheel, the worm, the operating member and the display part of the first embodiment and is within a display module mounted which is so formed that it within the Dispensergehäuses can be mounted. The module preferably includes a first and the second part which are connected together to a recording or a housing to form, and stores one or more parts, such as the ratchet wheel, the Worm, the operating member and the display part of the first embodiment described herein.

According to a another aspect of the invention, is a key member either on the container or on housing assembled and shaped so that it received in a recess may be that in the housing or on the container is provided.

The present invention provides significant advantages over other Display devices. in the first embodiment of the display device in particular ensures the screw for a compact drive component that not too much space within the housing claimed. Furthermore, the screw for high transmission ratio ensures<?page 4?>se, while a continuous engagement with the circular worm gear erect is obtained. The continuous engagement between the worm and the circular Gear ensures to maintain the accuracy of Zählgerätes while the manufacture and assembly is simplified.

The Using a circular Gear having an axis which is transverse, and preferably non-parallel or perpendicular to the longitudinal direction the container within the housing runs, further provides several advantages. In particular, the gear slightly in the housing using a low-cost and easy-to-install axis are mounted. Accordingly ensures the circular gear for a compact single-cycle unit, the light in the housing fits and a continuous engagement with the worm gear maintains, order for to provide an improved and more accurate indication of the display part. Furthermore, the components are arranged such that they are not with the air flow from the valve stem to outlet overlap of the housing or otherwise impede this. Additionally, the display wheel, mounted preferably coaxially with the worm wheel, an ideal, planar surface to display the dosage labeling. The indicator can the user can be easily seen through the viewing window.

The Display module disposed therein display unit also includes some advantages. In particular, the self-contained unit can separately be manufactured and installed as needed in any number of conventional types of Dispensergeräten, with only minimal modifications. Furthermore, the module can be easily installed without the air flow from the valve plunger to outlet and ultimately to superimpose the user or otherwise obstructing.

The Fit element also shows some advantages. Specifically unterschiedllich molded fit elements and recesses for containers, the different Substances such as, for example, contain drugs, and the associated housings the delivery system to be installed, so that the user is prevented from exchanging various containers and housings, thereby the counted changing number of doses. The key element and the recess may further include a user prevent the wrong delivery system for a given container with a specific substance such as a drug, to use.

The present invention, including further objects and advantages, opens best, having regard to the following detailed description considered in conjunction with the accompanying drawings.

<figref idrefs="S42">1</figref> is a perspective view of Dispensergerätes with a viewing window, the dosage indicator exposes.

<figref idrefs="S42">2</figref> is a perspective view of an embodiment of the Dispensergerätes, wherein a Part of the housing was broken.

<figref idrefs="S42">3</figref> is a perspective view of an embodiment of the display unit.

<figref idrefs="S43">4</figref> is a perspective view of an alternate embodiment the output device.

<figref idrefs="S43">5</figref> is a perspective view of the output device in accordance with <figref idrefs="S43">4</figref>, in which a portion of the housing was broken.

<figref idrefs="S44">6</figref> is a perspective view of a container, and a Dispensergehäuses an embodiment a display module, wherein a portion of the housing broken away.

<figref idrefs="S44">7</figref> is an exploded, perspective view of a container, a Dispensergehäuses and an embodiment of the Display module, wherein a portion of the housing broken away.

<figref idrefs="S44">8</figref> is an exploded, perspective view of an embodiment of Display module.

<figref idrefs="S44">9</figref> is an exploded, perspective view of the display module, viewed from the regarding <figref idrefs="S44">8</figref> opposite side.

<figref idrefs="S45">10</figref> is an exploded, perspective view of a container and an alternative embodiment of the Dispensergehäuses and the display module.

<figref idrefs="S45">11</figref> is a perspective view of the alternative embodiment the display module in accordance with <figref idrefs="S45">10</figref>,

<figref idrefs="S45">12</figref> is a cross-sectional view of a housing and mounted therein Display module.

<figref idrefs="S46">13</figref> is a plan view of an exemplary embodiment the display module.

<figref idrefs="S46">14</figref> is a rear view At the&lt;?page 5?&gt;show module according <figref idrefs="S46">13</figref>,

<figref idrefs="S46">15</figref> is a cross sectional view of the display module taken along lines 15-15 of <figref idrefs="S46">13</figref>,

<figref idrefs="S46">16</figref> is a cross sectional view of the display module, taken along line 16-16 of <figref idrefs="S46">13</figref>,

<figref idrefs="S46">17</figref> is a cross sectional view of the display module, taken along line 17-17 of <figref idrefs="S46">13</figref>,

<figref idrefs="S46">18</figref> is a cross sectional view of the display module, taken along line 18-18 of <figref idrefs="S46">13</figref>,

<figref idrefs="S46">19</figref> is a perspective view of an alternate embodiment of the module.

<figref idrefs="S46">20</figref> is a cross sectional view of the display module, taken along line 20-20 of <figref idrefs="S46">14</figref>,

<figref idrefs="S47">21</figref> is an exploded view of a container, a key member and a display module.

<figref idrefs="S47">22</figref> is a plan view of the key part.

<figref idrefs="S47">23</figref> is a cross-sectional view of the key member taken along line 23-23 of <figref idrefs="S47">22</figref>,

<figref idrefs="S47">24</figref> is alternative a perspective view of a container and a embodiment the display module mounted in a dispenser housing, wherein a part of the housing was broken.

<figref idrefs="S48">25</figref> is an exploded, perspective view of an alternative embodiment a display module, a key part and a display unit.

<figref idrefs="S49">26</figref> is a top perspective view of a first part of an embodiment the display module housing.

<figref idrefs="S49">27</figref> is a perspective view from below of the in <figref idrefs="S49">26</figref> shown Part.

<figref idrefs="S50">28</figref> is a perspective view of an embodiment of a display element.

<figref idrefs="S50">29</figref> is a perspective view of the display element in one of the <figref idrefs="S50">28</figref> opposing View.

<figref idrefs="S50">30</figref> is a perspective view from above of a second element an embodiment the display module, which is an axis is installed.

<figref idrefs="S50">31</figref> is a perspective view of an actuator.

<figref idrefs="S51">32</figref> is a perspective view of a container with an alternative embodiment a key element disposed therein and above a embodiment a display module is arranged.

<figref idrefs="S51">33</figref> is a perspective view of an alternate embodiment the key element.

<figref idrefs="S51">34</figref> is an exploded, perspective view of an alternative embodiment a ball spring element, which is arranged on a container.

<figref idrefs="S52">35</figref> is a cross sectional view of a display module, the advancing element a a first display element, an engaging member and a second Indicator displays.

<figref idrefs="S52">36</figref> is a cross-sectional view of the feed element of the first display element when this initially is urged by the engaging element in the display module housing.

<figref idrefs="S52">37</figref> is a cross-sectional view of the feed element, as by the engagement member in engagement with the second display element is charged, so that it rotates the second display element.

<figref idrefs="S52">38</figref> is a cross-sectional view of the feed element, as it passes through the engaging member is released and disengaged from the second display element stands.

<figref idrefs="S53">39</figref> is an exploded, perspective view of an alternative embodiment a display module and a display unit.

<figref idrefs="S53">40</figref> is an enlarged side view an actuating element adjacent in a non-engaged position to a first Display element.

<figref idrefs="S54">41</figref> is a side view of Betätigungsetements, how it applied the first display element wherein the return lock loaded outwards is.

<figref idrefs="S54">42</figref> is a side perspective view of an alternative embodiment a display element.

<figref idrefs="S54">43</figref> is a side perspective view of the display element of the <figref idrefs="S54">42</figref> of the ge&lt;?page 6?&gt;opposing Page.

<figref idrefs="S55">44</figref> is a cross-sectional view of a feed member at a first Display element, a second display element and an engagement element.

<figref idrefs="S55">45</figref> is a cross sectional view of the advancing element, when it starts, to be acted upon by the engaging member.

<figref idrefs="S55">46</figref> is a cross-sectional view of the feed element, as by loaded, the engaging member in engagement with the display element is.

<figref idrefs="S55">47</figref> is a cross-sectional view of the feed element, as further by the engaging member in engagement with the second display element is charged.

<figref idrefs="S55">48</figref> is a perspective view of an alternate embodiment a display unit disposed on a lower member of the module housing.

What the drawings and particularly the <figref idrefs="S42">1</figref>. <figref idrefs="S43">4</figref>. <figref idrefs="S44">6</figref>. <figref idrefs="S44">7</figref> and <figref idrefs="S47">24</figref> relates, is a delivery system designed as a dispenser or Dispensergerät shown, the housing <figref>10</figref> or a Betätigerschuh and a container accommodated therein <figref>100</figref> having. The housing <figref>10</figref> has a longitudinally extending cavity <figref>12</figref>Which is shaped so that it the container receives. An upper portion of the housing is generally open, so that the container into the housing through the opening <figref>14</figref> used and is installed so that a bottom end <figref>102</figref> of container from housing projects and users for actuation to disposal stands.

it it should be noted that the term "delivery system" as used herein is a system or a device for delivering a substance from a container, a reservoir or similar includes storage systems to a user, and continue the disclosed Dispensergerät contains, administering the substance to the user in the form of an aerosol, which is inhaled by the user. The term "Dispensergerät" as used herein is to be understood so that it comprises devices, the substance is a in customary output units, spray or otherwise outwardly promote or administer, and includes the disclosed inhalation devices metered doses of a substance in aerosol form for inhalation by issue the user, but are not limited thereto.

Of the Term "longitudinal", as used herein is the direction of the reciprocating movement of the container is relatively for housing Show. The terms "top", "bottom", "upward" and "downward" are directions See, in a viewing direction of the inhaler, as shown in Figs., but with the proviso that the container is reversed so that adjacent an upper surface of the bottom of the housing is arranged, and vice versa.

how in the <figref idrefs="S43">5</figref>. <figref idrefs="S44">6</figref> and <figref idrefs="S44">7</figref> shown, a cylindrical support block <figref>16</figref> a borehole <figref>18</figref>, the in a bottom area <figref>22</figref> is formed of the housing. An opening penetrates the support block and is connected to a bottom portion of the well in connection. A mouthpiece <figref>24</figref>. which is intended for insertion into the mouth of a patient, forms an outlet <figref>26</figref>. with the opening and the well is in communication. The mouthpiece<figref>24</figref> extends from housing laterally away to allow insertion of the mouthpiece in the patient's mouth to facilitate.

how in the <figref idrefs="S43">5</figref>. <figref idrefs="S44">6</figref> and <figref idrefs="S44">7</figref> shown, a cylindrical support block <figref>16</figref> a borehole <figref>18</figref>, the in a bottom area <figref>22</figref> is formed of the housing. An opening penetrates the support block and is connected to a bottom portion of the well in connection. A mouthpiece <figref>24</figref>. which is intended for insertion into the mouth of a patient, forms an outlet <figref>26</figref>. with the opening and the well is in communication. The mouthpiece<figref>24</figref> extends from housing laterally away to allow insertion of the mouthpiece in the patient's mouth to facilitate.

Of the container <figref>100</figref> is a cylindrical canister <figref>104</figref> with a hub <figref>106</figref>. which at its upper surface <figref>105</figref> arranged is formed. A valve tappet<figref>110</figref> extends longitudinally away from the hub. extends the valve stem coaxially from off cans and is by a spring (not shown) which is mounted within the canister, charged to the outside. The container <figref>100</figref> shall in the housing through Press-fitting the valve lifter <figref>110</figref> in the bore of the support block is mounted. It should be noted are that the container have a variety of shapes and sizes, can, and that the substance contained therein by any of the number of valve systems that are well known in the art are to be issued. It should also be noted be, that the valve system are operated by a plurality of Betätigem can, including various pumps, levers, Startbetätigern, snaps or the like., but without limitation. In such embodiments, can be actuated by an actuator, the valve system relative to the container and housing is movable, so that the container relative to the housing stationary remains.

&lt;?page 7?&gt;

in a preferred embodiment is the container <figref>100</figref> With a substance filled, outputted therefrom in specific metered doses, by the valve tappet <figref>110</figref> of a above, closed position to a depressed, open pressed position or moved, which in turn opens the valve or the valve system. The Substance is a drug. A medicament is defined as a Substance which can be used in a therapy, such as for different therapeutic treatments, such as the treatment of conditions (Ie respiratory ailments) and for the relief of pain, and should pharmaceuticals and medical Substances include general. A single metered dose is at each longitudinal reciprocal movement of Valve lifter and the associated opening, and closure of the valve from the container output. The medication is usually the user or Patient through the mouth or nose in the form of an aerosol, a spray or a liquid administered.

in the Operation, the opening of the valve lifter and the valve by movement of the container <figref>100</figref> there and forth within the housing <figref>10</figref> along a longitudinal axis causes the valve stem and through the the reciprocating movement of the container is defined by the exposed bottom end <figref>102</figref> of Canister relative to the housing <figref>10</figref> suppressed so that the valve tappet <figref>110</figref> in moves to the open position when within the borehole by the supporting block is mounted. Alternatively, an actuator moves be to open the valve system of the container with respect to a Support housing, a cap and / or a display device mounted thereon to remain stationary. For example, the actuator at the end of the container in the form of a pump device be arranged or the like..

how the <figref idrefs="S43">5</figref> to <figref idrefs="S44">7</figref> show gives the container a metered dose of substance in aerosol form through the Borehole and the opening in the discharge port from when the valve tappet in the open position is moved. The substance in aerosol form is then the user through the discharge port the mouthpiece administered either by a self-generated or assisted airflow. alternative can metered doses of liquid or the like. dispensed from the container will.

at other delivery systems which also contain a Dispensergerät can, , the housing and the holder of the container attached to a component having a chamber with an output end having. Examples of this type of delivery systems and Dispensergeräten example, in U.S. Patent 5,012,803, issued on 07.05.1991, and U.S. Patent 4,460,412, issued on 11.09.1984 shown with the entire Disclosure of which is hereby incorporated by reference. (It is not intended in any of these patents for by the inclusion of acquisition Reference any license, express or implied grant). In these kinds of delivery systems, the component which containing chamber, be configured to receive the mouthpiece of the housing, or it may be integrally connected with a holder which supports the container. is In each embodiment first the metered dose of medicament in aerosol form from the container into issued the chamber and then inhaled by the user.

in a preferred embodiment is the container <figref>100</figref> a spend predetermined number of metered doses of substance. So for example, containing conventional inhaler containers typically measured Doses in a number in the range of 100 to 200. In operation it is important that the user, the number of measured doses abge in the container remain familiar, so that the user does not empty by a container surprised , when he needs the substance, such as a drug.

how the <figref idrefs="S42">2</figref> and <figref idrefs="S42">3</figref> show is a Dispensergerät formed as aerosol dispenser, comprising a housing, mounted therein Containers, such as described above, and shown a display unit. The display unit contains a ratchet wheel <figref>32</figref>Coaxially with a worm <figref>40</figref> on an axis <figref>42</figref> mounted in a lower region of the housing is. A plurality of teeth are formed around the circumference of the ratchet wheel. The teeth<figref>34</figref> are cut or with a chamfered surface <figref>36</figref> and an engaging surface <figref>38</figref> educated. In a preferred embodiment, are the ratchet wheel and the screw of a hard, durable plastic material shaped. It should be noted that, however, other Materials, such as metal, also serve the purpose. The ratchet wheel and the worm could are produced as separate parts or can be used as single, integral Part to be cast.

in define a preferred embodiment the axis <figref>42</figref> and the screw <figref>40</figref> an axis of rotation transversely or at right angles to the longitudinal axis, which through the stem, and the reciprocating movement of the container relative to the housing is defined. Opposing Ends of the axle <figref>42</figref> are rotatably mounted in the housing.

how also in the <figref idrefs="S42">2</figref> and <figref idrefs="S42">3</figref> shown, includes a display element <figref>50</figref> a circular worm gear <figref>52</figref> and an indicator wheel <figref>58</figref>Coaxially mounted on an axle are. In a&lt;?page 8?&gt;preferred embodiment, defines the axis <figref>56</figref> an axis of rotation transverse to the axis, the is defined by the worm and also transverse to the longitudinal axis, the relatively by the reciprocating movement of the container for housing is defined. The axis<figref>56</figref> is rotatably mounted in the housing. Around the circumference of the worm wheel <figref>52</figref> have teeth <figref>54</figref> educated and shaped so that it with the screw <figref>40</figref> permanent are engaged. As in<figref idrefs="S42">2</figref> shown, , the indicator wheel <figref>58</figref> a planar face <figref>60</figref> on, by a viewing window <figref>28</figref>That formed in the housing is for is the patient visible.

The ratchet wheel <figref>32</figref>, the snail <figref>40</figref>The worm wheel <figref>52</figref> and the indicator wheel <figref>58</figref> form an ideal arrangement for displaying of the container doses remaining, or the number of doses dispensed therefrom. In particular, relatively high reduction ratios possible by the use of the ratchet wheel, the worm and the worm wheel without the corresponding requirement, extremely small teeth on a provide or more of the ratchet wheel or worm wheel. furthermore prevents the interface between the worm and the worm wheel the inevitable inaccuracies that by mating and the potential skipping conventional gear transmission caused with fine teeth. furthermore is the installation of the display element through the installation an easy axis causes the and in a plurality of positions angular orientations within the housing can be stored. It is particularly important that with the slug <figref>40</figref> induced high reduction ratios a worm <figref>52</figref> Allow that a relatively small having diameter, making it easy within the small installation space within the housing can be mounted. Indeed , as the <figref idrefs="S44">6</figref> and <figref idrefs="S45">12</figref> show, the entire display unit behind the support block <figref>16</figref> and below its upper surface <figref>17</figref> assembled be, so that the unit does not match the output of the drug out of the opening or with the by the patient while administering the drug Airflow generated overlaps.

how <figref idrefs="S43">5</figref> shows, is an actuating element <figref>70</figref> as staff member <figref>72</figref> formed, the movable within the housing along an axis is mounted parallel to the longitudinal axis runs, the inside by the reciprocating movement of the container the housing is defined. In an alternative embodiment in accordance with the<figref idrefs="S44">7</figref> to <figref idrefs="S44">9</figref> contains the rod member an upper portion <figref>74</figref>, A central region <figref>76</figref> and a lower portion <figref>78</figref>, An elastic arm member<figref>80</figref> extends from the central portion of the rod member and terminates in a chamfered hook element <figref>82</figref>. which is shaped so that it selectively with one of the teeth of the Ratchet wheel engages. The central region<figref>76</figref> shall by an upper and lower stop surface <figref>84</figref>. <figref>86</figref> defined. A spring <figref>88</figref> is around the lower region <figref>78</figref> of arranged rod member and acts upon the lower abutment surface <figref>86</figref>. to the actuator element upwards against the upper surface <figref>108</figref> of container to squeeze, as in <figref idrefs="S44">7</figref> shown. Although a compression spring in Figs. is shown, it should be understood that cantilever, torsion, leaf and tension springs, or the like also. can be used to the actuator burdening upwardly into engagement with the container. The springs can be made of be metal or plastic.

in one in the <figref idrefs="S42">2</figref> and <figref idrefs="S42">3</figref> shown, alternative embodiment contains the actuator <figref>90</figref> a fixing ring <figref>92</figref> and an elastic arm member <figref>94</figref>. the longitudinally extending from the collar down. A longitudinal slot<figref>96</figref> is formed in the mounting ring, so that the fixing ring <figref>92</figref> extend can and around the hub <figref>106</figref> (in <figref idrefs="S43">5</figref> shown) the container can be arranged in a Einschnappsitz, so that the Tappets of container through the opening <figref>98</figref> of Mounting ring extends. An outer end of the elastic Arm member terminates in a hook element <figref>95</figref>Which formed so is that it with the teeth of the ratchet wheel in selected Manner engages.

When Operation of the embodiment in accordance with the <figref idrefs="S44">6</figref> to <figref idrefs="S44">9</figref>. <figref idrefs="S46">13</figref> to <figref idrefs="S46">18</figref> and <figref idrefs="S46">20</figref>. , the container longitudinal within the housing moved so that the valve tappet in its pressed open position is to open the valve, as explained above is. When the container within the housing is moved downwardly, the operating member is <figref>70</figref> in longitudinal direction moves downward, so that the hook element <figref>82</figref> with the Ratchet wheel engages, and by a predetermined angular amount corresponding to the pitch of the teeth rotates. When the container is released by the user, the spring biases (not shown) within container the container within the housing along the longitudinal axis by above, so that the valve stem <figref>110</figref> in the closed position is moved within the container to move the valve close. When the container moves upwardly, the resilient arm member is <figref>80</figref> laterally outward pressed, if a chamfered End of the hook member <figref>82</figref> against the beveled surface <figref>36</figref> one the ratchet teeth slides. When the container and reached the resilient arm member the top of the stroke, which the valve stem completely in the closed position has been moved, return the elastic arm member <figref>80</figref> in its normal straight aligned position back, because the hook member <figref>82</figref> about the beveled surface one of the teeth slides, so that it the next cycle through the engaging surface <figref>38</figref> that tooth <figref>34</figref> is arranged.

&lt;?page 9?&gt;

alternative the actuation of the ratchet wheel are reversed, as shown in <figref idrefs="S42">3</figref> shown. In this embodiment, the elastic arm member <figref>94</figref> by the tapered surface of one of the teeth Ratchet wheel on the downstroke outward pressed. At the lower end of the stroke, the hook member slides <figref>95</figref> in one under cross-relationship with the engagement surface of the Tooth. When the container will by the user Iosgelassen compresses the spring (not shown) within the canister the container within the housing along the longitudinal axis upwards so that the valve stem in the closed position is moved within the container. If the container in terms of the housing moves upward, the elastic arm member moves <figref>94</figref> in longitudinal direction upwards so that the hook element <figref>95</figref> with the engaging surface <figref>38</figref> one of teeth in Engages the ratchet wheel and thereby continues to rotate by one step.

in the in the <figref idrefs="S44">6</figref> to <figref idrefs="S44">9</figref>. <figref idrefs="S46">13</figref> to <figref idrefs="S46">18</figref> and <figref idrefs="S46">20</figref> shown Embodiment, The force of the spring <figref>88</figref>That the arm member <figref>80</figref> after moved up, thereby the actuator reset in preparation for another cycle. In the alternative embodiment the <figref idrefs="S42">2</figref> and <figref idrefs="S42">3</figref> it is the movement of the container as it is pushed by the inner spring, which acts on the valve stem, upwardly, causing the fixing ring <figref>92</figref> and the arm member <figref>94</figref> move upward, thereby the ratchet to turn.

how the <figref idrefs="S44">8</figref> and <figref idrefs="S46">17</figref> show is an elastic Return-blocking element <figref>200</figref> With the ratchet wheel adjacent to the hook element into engagement in order to ensure that the rotation of the ratchet wheel takes place only in one direction. alternative , the return-blocking element positioned be it with the ratchet wheel on an opposite the Betätigungsarmelement Body is engaged. The return-blocking element contains an end portion that is adapted to the engagement surface with the Tooth of the ratchet wheel engages. If the ratchet by the actuator is rotated to slide the return-blocking element along the slanted surface one of the teeth of the ratchet wheel and superimposes not with its rotation.

The Rotation of said ratchet wheel causes the screw <figref>40</figref> around a desired, predetermined amount is rotated. It should be noted, that the wish ge Amount of rotation depends arranged on the diameter of the ratchet wheel and the number of it, Teeth. The rotation of the screw, the ever with teeth the worm wheel is engaged, causing the worm wheel and the display wheel by a predetermined angular amount rotate. Of the Amount of rotation of the indicator wheel is dependent upon the slope of the Screw, the number of worm threads and the pitch of the Worm wheel as well as the number of teeth of the worm wheel. in a preferred embodiment, has the screw a single turn.

Around to simplify manufacture, it is desirable that the division of both the barrier and the worm gear train as coarse as possible, although the gears even as gears with fine teeth are defined. However, it is also possible that the display part only a single revolution (single cycle) corresponding to a complete emptying of the medicament from the container performs. Accordingly, when a large contain number of doses (on the order of 200 or more) in the canister are, it is important for the ratchet wheel, the worm and the worm wheel relatively high reduction ratios provide, so that 200 linear reciprocal movements the actuating element one or even less turns the display element correspond.

There the ratchet wheel and the screw rotate together, it should be noted that the number of teeth on the ratchet wheel and the worm wheel and the number of turns of the screw, the outermost reduction ratio between the rotation of the locking wheel and the rotation of the indicator wheel determined.

If For example, the container <figref>240</figref> measured containing doses is an acceptable ratio realized when the ratchet relatively coarse with ten teeth and the worm gear is provided with twenty-eight teeth. Operational causes the output of ten measured doses of a complete revolution of the screw to thereby rotate the worm wheel to move a tooth. After<figref>240</figref> linear, reciprocating movements of the worm wheel has moved to twenty-four teeth. additional teeth provided so that the indicator for the start and the end, the each relative filling or emptiness of the container See, not one above the other Need to become.

in one in the <figref idrefs="S44">9</figref> and <figref idrefs="S46">15</figref> shown, preferred embodiment are on the worm wheel <figref>52</figref> formed teeth only to a portion of its circumference, so that a gap between the teeth is formed around the remaining portion of the circumference. Operational the gears formed so that the screw <figref>40</figref> the last tooth of the worm wheel except Engages when the last prescribed dose of the drug was issued. In this position, the indicator showing the Kennzeichenrad<figref>58</figref> the User that the canister is empty. Although characterized the user to container continues to move to the valve to &lt;?page 10?&gt;Open, is the ensuing resulting movement of the actuator <figref>70</figref>. the locking wheel <figref>32</figref> and the screw is not the indicator element rotate, since the gap in the teeth on the worm wheel to a separation of worm and worm wheel leads. In this way, the indicator wheel is prevented from unintentionally from a full to an empty reading and then back again to a turning full reading what the user in terms of the might confuse canister remaining number of doses.

The display wheel <figref>58</figref>, The indicator <figref>66</figref> and the viewing window <figref>28</figref> can in a variety of configurations for viewing by the user be arranged. For example, the viewing window<figref>28</figref>. <figref>124</figref> as be formed perpendicular shaped window, as each in the <figref idrefs="S42">2</figref> and <figref idrefs="S45">10</figref> Shaped shown as curved window <figref>29</figref>, as in <figref idrefs="S43">4</figref> shown, wherein about a third of the end surface of the same Anzeigerrads it can be seen as a circular shaped Window (not shown) or in any other form that the user allows the display wheel and the indicator thereon to see. In one embodiment, have the license plate in the form of a color code, for example, a portion of the wheel green colored is, to the initial, fully filled display position, an area is colored yellow to indicate a half filling state, and a portion dyed red is to indicate that the container is empty. Of course, other Colors, shades or alphanumeric indicator on display wheel be provided to the relative filling status or the emptying the container display.

in an alternative embodiment, the indicator wheel within the housing be oriented such that either its planar face or its peripheral surface, are applied to the plate, for the user through the dispensing opening of the mouthpiece you can see.

in <figref idrefs="S48">25</figref> is an alternative embodiment of a display unit shown. The display unit contains three indicators <figref>550</figref>Coaxially on an axis <figref>556</figref> assembled and are rotatable thereabout. As best seen in<figref idrefs="S50">28</figref> and <figref idrefs="S50">29</figref> to see includes, each of the display elements, a display wheel <figref>558</figref> with a peripheral skirt <figref>559</figref> With an outer circumferential surface <figref>560</figref>. the marks are applied (as shown figures), and a coaxially mounted with the indicator wheel ratchet <figref>552</figref>, The indicator wheel and the ratchet wheel have an opening <figref>553</figref> on, which is adapted to receive the axle. The ratchet wheel<figref>552</figref> contains a Plurality of teeth <figref>554</figref>. formed around its periphery. The ratchet wheel is preferred integrally molded with the indicator wheel, although it should be noted, that the toothed wheel and the wheel made separately and subsequently by Welding, Gluing or the like. Are secured together.

in one embodiment, the display element is an elastic advance element <figref>600</figref> at one Range of peripheral skirt <figref>559</figref> formed in which an elongate cutout <figref>602</figref> radially in the indicator wheel inwards and under the skirt is provided. The advance element<figref>600</figref> contains a sideways extending tooth area <figref>604</figref> with a mating face <figref>606</figref>, The three display elements are mounted coaxially, so that the tooth area <figref>604</figref> the advance element a first display element to Sperrradzahn <figref>554</figref> the second Display element layered, and so that the tooth area <figref>604</figref> the advance element of second display element to Sperrradzahn <figref>554</figref> the third Display element superimposed. If only three indicators are used (as in <figref idrefs="S48">25</figref> shown) It is the third display element is not required, a feed element to install, although in terms of ease of manufacture applied a modular display element having the same it Indicator and the same feed element formed thereon is preferred for each of the first, second and third display elements is used. It is for the skilled person will be understood that a plurality of display elements may be used to select one or an indication of verbrauc provide hten or available doses, and that the three display element shown in Fig. are exemplary only and not by way of limitation. additionally, it should be noted that a plurality of display elements any number of display elements comprises greater than the first

in an alternative embodiment of the display element <figref>650</figref>, Shown in <figref idrefs="S53">39</figref>. <figref idrefs="S54">42</figref> and <figref idrefs="S54">43</figref>. is a feed element <figref>800</figref> radially inward of a peripheral skirt <figref>659</figref> arranged and contains a first end <figref>657</figref>Equipped with a flat side region or a hub <figref>655</figref> the indicator wheel is connected. The includes advancing element a curved, elastic region <figref>708</figref> having a free end with a tooth region <figref>704</figref>, The laterally thereof extends to the outside, so it is sideways from beneath the skirt <figref>659</figref> of Indicator wheel extends, so that it an adjacent teeth of the locking wheel Display element layered, which is mounted coaxially with it, as in <figref idrefs="S55">48</figref> shown. Indicator, preferably in the form of numbers, are on the peripheral surface <figref>660</figref> the apron applied. A ratchet<figref>652</figref> with a plurality of teeth <figref>654</figref> is coaxially mounted with the indicator wheel. As in<figref idrefs="S55">48</figref> shown, are three display elements coaxially on the axis <figref>656</figref> assembled.

how the <figref idrefs="S48">25</figref> and <figref idrefs="S53">39</figref> show, includes an actuator <figref>570</figref>. <figref>670</figref>. as locking element &lt;?page 11?&gt;denotes an upper portion <figref>574</figref>. <figref>674</figref> on, that of a lower region <figref>578</figref>. <figref>678</figref> up runs, and contains an elastic arm member <figref>580</figref>. <figref>680</figref>, that I outwardly therefrom and terminating in a resilient hook member <figref>582</figref>. <figref>682</figref> ends which is shaped so that it selectively in at least one the teeth the ratchet of the first display element acted upon. A spring<figref>588</figref>. <figref>688</figref> is arranged around the lower region of the actuating element and urges the upper portion <figref>574</figref>. <figref>674</figref> of actuator in engagement with the container.

how <figref idrefs="S49">27</figref> shows, has a housing <figref>820</figref> a few of engagement elements <figref>770</figref> on integral with the housing are formed and ramp surfaces <figref>772</figref> contain. A variety of return-blocking elements <figref>900</figref> extend from housing away and are selectively Way with the ratchet wheel in engagement to permit rotation of the display element ensure in only one direction, as in the <figref idrefs="S52">35</figref> to <figref idrefs="S52">38</figref> to see. Although the engagement members and return blocking elements as on a arranged module housing or, viewing from above it, as described below, is it for the skilled person that those elements or equivalent features also the dispenser housing or on Betätigerschuh, carrying the container, formed or may be connected to this, or arranged on the container itself or may be connected to this.

in the <figref idrefs="S48">25</figref> and <figref idrefs="S52">35</figref> to <figref idrefs="S52">38</figref> will the activity the display unit in accordance with <figref idrefs="S48">25</figref> in general shown. In particular, the container in the longitudinal direction within the housing<figref>10</figref> emotional, around the valve tappet <figref>110</figref> in to press the open position, to open the valve, as described above. When the container in the housing downwards, or concerning the Module housing described below is moved downwardly, the operating member is <figref>570</figref> in longitudinal direction moves downward, so that the hook element <figref>582</figref> by the ratchet <figref>552</figref> at a first outer display element outward depressed becomes. At the lower point of the stroke, the hook element slides<figref>582</figref> in a under overlapping relationship with the teeth on the ratchet wheel. If the container will by the user Iosgelassen, the spring presses (not shown) within container the container within the housing along the longitudinal axis upwards so that the valve stem <figref>110</figref> and moves the valve to the closed position within the container will. When the container moves upward, the elastic arm member moves <figref>580</figref> in longitudinal direction upwards so that the hook element <figref>582</figref> the first display element by a first angle range or step corresponding to the pitch the arranged around the periphery of the ratchet wheel teeth to rotate. When the container and reach the elastic arm of the upper point of the stroke, when the valve tappet and the valve completely have moved to the closed position, the resilient arm member <figref>580</figref> above the ratchet for the next Cycle positions. Alternatively, the actuation of the actuating element and the ratchet wheel are reversed as described above with respect to the embodiment in the <figref idrefs="S44">6</figref> to <figref idrefs="S44">9</figref> explained.

in the <figref idrefs="S53">39</figref> to <figref idrefs="S54">41</figref> and <figref idrefs="S55">44</figref> to <figref idrefs="S55">48</figref> are a plurality of resilient arm members <figref>700</figref> shown, extending from a module housing extend, leaving them with the locking wheels on each of the display elements are aligned. The arm members<figref>700</figref> serve as combined engagement element and return-blocking element. As in the<figref idrefs="S53">40</figref> and <figref idrefs="S54">41</figref> shown, function particular the arm members <figref>700</figref> as return-blocking elements and include an end portion that is pressed away from the teeth on the ratchet wheel, when the operating member or the adjacent display element which is the feed element, is actuated, advance to the ratchet. The effect of the actuating element<figref>670</figref> and the ratchet wheel is similar the effect of the <figref idrefs="S44">6</figref> to <figref idrefs="S44">9</figref> shown The ratchet wheel, as discussed above. The arm member <figref>700</figref> snaps back so that the end with one of the teeth of the ratchet wheel is engaged to ensure that the rotation the ratchet wheel is only in one direction. As in the<figref idrefs="S55">44</figref> to <figref idrefs="S55">47</figref> shown, serves the arm member <figref>700</figref>That the locking wheels second and third display elements superimposed, also as an engaging element, the associated selectively with the display elements Advancing elements applied.

in the Operation, the reciprocating movement of the container relative for housing repeated until the first display element <figref>550</figref>. <figref>650</figref> and be ratchet to complete Rotation are rotated. The predetermined number of reciprocating Movements which are required by the first display element rotation forward to move, is equal to the number of teeth around the periphery the locking wheel <figref>552</figref>. <figref>652</figref> are arranged. If the first display element by successive movements of the container relative to the housing is rotated, the feed element is <figref>600</figref>. <figref>800</figref> of first display member in selective engagement with the engaging member accommodated, which is designed as the ramp surface <figref>772</figref>That formed in the housing is, or as the upwardly extending arm member <figref>700</figref>, In particular, the engagement member charged <figref>700</figref>. <figref>772</figref> the tooth region <figref>604</figref>. <figref>704</figref> the advance element engaged with one of the teeth <figref>554</figref>. <figref>654</figref> of Ratchet on the second display element.

If the first display element further &lt;?page 12?&gt;by successive movements the container relative to the housing is rotated, whether the dispenser housing for the container or the module housing, such as described below, the feed element comes <figref>600</figref> with a the teeth on the ratchet wheel of the adjacent display element in engagement and pushes the display element at a predetermined gradual Angle range corresponding to the pitch of the teeth of the ratchet wheel forward. The term progressive is intended to refer to the range of angles, by which the display element moves through the feed actuation what the movement of one tooth corresponds to un depending on whether the display device the number the remaining doses indicates (ie counts down) or the number of the administered Can count (Ie upstream counts).

If the elastic advance element <figref>600</figref>. <figref>800</figref> the engaging member <figref>772</figref>. <figref>700</figref> is released, it jumps off the ratchet wheel so that further feed motions the first display element is no rotation of the second display element effect until the first display element completed another cycle, to turn the feed element into engagement with the next tooth to bring the ratchet wheel of the second display element, etc. The second display element <figref>550</figref>. <figref>650</figref> with his advancing element <figref>600</figref>. <figref>800</figref> acts similarly with the second engagement member overlying the teeth of the third display element, together, to pressurize the third display element in a selective manner and by a predetermined step for each full rotation the second display element forward to move. It should be noted that more display elements can be assembled in the same way to create a step display.

in a preferred embodiment of the Dispensergeräts, shown in <figref idrefs="S44">6</figref> to <figref idrefs="S45">10</figref>. <figref idrefs="S46">13</figref> to <figref idrefs="S46">18</figref>. <figref idrefs="S46">20</figref>. <figref idrefs="S47">24</figref>. <figref idrefs="S48">25</figref> and <figref idrefs="S53">39</figref>. is the display unit in a display module <figref>120</figref>. <figref>1020</figref>. <figref>1120</figref> arranged. The display module <figref>120</figref>. <figref>1020</figref>. <figref>1120</figref> is shaped so that it in the housing can be taken where there is an area of ​​the support block <figref>16</figref> arranged is. In particular, the support block from the wall of Dispensergehäuses, as Betätigerschuh designated, spaced to a base in donut shape on the ground the housing to build. The module contains a module housing <figref>130</figref>. <figref>1030</figref>. <figref>1130</figref> with a inner concave surface <figref>132</figref>. <figref>1032</figref>. <figref>1132</figref>, the is so shaped to the outer convex surface with a cylindrical support block and an outer convex surface <figref>134</figref>. <figref>1034</figref>. <figref>1134</figref> mates, which mates with the inner concave surface of the housing, which in the generally cylindrical. In this way, the module housing is shaped to that it can be received within the socket, the order the formed support block is. Preferably, the module housing a semicircular Shape and fits around a portion of the support block, which is opposite to the opening, so that it is not, with the issue of the drug or the airflow transmits the medicament in the patient overlap. In this way, the module is backward of Midpoint of the carrier block held. The skilled person is understood, however, that the module or the module housing formed in any number of different sizes and shapes can be to work with a variety of housings or cap assemblies with or without a carrier block to be, and the like. added.

how in the <figref idrefs="S44">8</figref> to <figref idrefs="S44">9</figref> shown, includes an embodiment the module preferably has a face area <figref>210</figref>, of the from the rear convex surface the module covers and a module viewing window <figref>64</figref> having. The face area snaps into the opening of the viewing window of the housing a (circular opening, Not shown); to secure the module thereto. As in an alternate embodiment in the <figref idrefs="S45">10</figref> to <figref idrefs="S45">12</figref> shown, contains the face area a vertically oriented, rectangular window <figref>68</figref> and a downwardly extending locking member <figref>122</figref>. extending through the Sichtfensteröftnung <figref>124</figref> of Dispenser extends, and with a bottom wall of the housing Engaged. In still other embodiments, for example, shown in the <figref idrefs="S47">24</figref> and <figref idrefs="S50">30</figref>, have the face area <figref>1031</figref>. <figref>1131</figref> and the viewing window <figref>1064</figref>. <figref>1164</figref> an elongated, horizontal orientation in order for the User a view of the plurality of display elements within the module are mounted to provide. It should be noted are, however, that the module within the housing by any Number of conventional means, including the use of fasteners or adhesive, may be attached. Alternatively, the module can easily by a press fit in between the support block and the housing formed recording are used.

in the in <figref idrefs="S44">8</figref> illustrated embodiment, the circular viewing window <figref>64</figref> in the module housing provided such that a substantial portion of the planar indicator wheel exposed. Numerical indicator corresponding to the number of doses in the container, are on the end face <figref>60</figref> of Indicator wheel provided. An arrow or a similar indicator is on the housing mounted adjacent the viewing window and forms a marking the number of doses that in the housing remain, or the resulting output number when the indicator wheel is rotated becomes.

at other alternative Ausführungsbei&lt;?page 13?&gt;play, For example, in the shown <figref idrefs="S45">10</figref>. <figref idrefs="S45">11</figref>. <figref idrefs="S48">25</figref> and <figref idrefs="S53">39</figref>. are the characteristics of a peripheral surface <figref>62</figref>. <figref>560</figref>. <figref>660</figref> of Display rads applied. The viewing window<figref>68</figref>. <figref>1064</figref>. <figref>1164</figref> of Module, which is preferably rectangular, and indicator wheel are the arranged so that the peripheral or the periphery of the wheel or the wheels are visible through the viewing window of the module and dispenser. how in other embodiments can the indicator in the form of color coding, shading, accept alphanumeric indicator and the like..

in the in the <figref idrefs="S50">28</figref> to <figref idrefs="S50">29</figref> and <figref idrefs="S54">42</figref> to <figref idrefs="S54">43</figref> shown embodiments are the hallmarks preferably around the circumferential surface <figref>560</figref>. <figref>660</figref> of Indicator wheel in the form of numbers from 0 to 9, wherein the ratchet wheel on the display element has ten teeth. In operation it is be noted that three or more or less display elements set to the maximum number of doses contained in the container, pre- can be, wherein the indicia, or in this case, the numbers to the peripheral surface of the Indicator wheel are arranged so that successive actuations the container cause the display elements count down.

alternative the display elements are assembled so that the null (<figref>0</figref>) each display element is displayed in the window for the user. The container is then actuated by the user, so that the first indicator member rotates within the housing, to sequentially, the number of doses that have been issued, from 1 to 9 show. After the tenth operation completes the Display element complete Revolution, because of the ten teeth, which are preferably arranged around the locking wheel around which the predetermined Number of actuations corresponds to, and causes the second display element is a number from From 0 to 1 forward is moved, wherein the first display element, in turn, a 0 indicates so show the two elements together, that 10 doses were issued. The first display element is again by successive actuations rotated until a further full revolution is completed, to the second indicator to turn again to show 2, thereby to indicate that 20 dosages have been issued. After a full Rotation of the second display element, which corresponds to 100 actuations, the third display element forward moved to a display 1 in the viewing window, wherein the first and Show second display elements a 0, etc.

how in the <figref idrefs="S44">6</figref> to <figref idrefs="S45">10</figref>. <figref idrefs="S46">13</figref> to <figref idrefs="S46">18</figref> and <figref idrefs="S46">20</figref> shown, is an embodiment the display unit, the worm, the worm, the ratchet wheel and contains the display element, within the module housing <figref>130</figref> assembled. Similarly, the embodiments the display unit in accordance with the <figref idrefs="S48">25</figref> and <figref idrefs="S53">39</figref> also preferably in a module case <figref>1030</figref>. <figref>1130</figref> stored. The module housing is preferably made of a first and a second cover member <figref>136</figref>. <figref>138</figref>. <figref>1036</figref>. <figref>1038</figref>. <figref>1136</figref>. <figref>1138</figref> educated, although it should be noted that a single, one-piece piece of material also fulfills its purpose, as well as any number of connected elements would do. According to the <figref idrefs="S44">6</figref> to <figref idrefs="S45">10</figref>. <figref idrefs="S50">30</figref> and <figref idrefs="S53">39</figref> has the first cover member <figref>136</figref>. <figref>1136</figref>. <figref>1036</figref> a vertical wall <figref>140</figref>. <figref>1140</figref>. <figref>1040</figref>Comprising at least a portion of the outer convex surface <figref>134</figref>. <figref>1034</figref>. <figref>1134</figref> defined, which is shaped to be described with the inner surface of the housing, as above, match. The secondary window <figref>64</figref>. <figref>1064</figref>. <figref>1164</figref> the module is in the vertical wall <figref>140</figref>. <figref>1040</figref>. <figref>1140</figref> provided so that it is aligned with the viewing window of the housing when the module is installed therein. The viewing window is determined by the Face area framed. In one embodiment, in <figref idrefs="S44">9</figref> shown, the first element contains also a pair of opposed bearing seats <figref>144</figref>That on an inner surface of the are formed vertical wall. The bearing seats<figref>144</figref> are so shaped to the ends of the axle <figref>42</figref> to store. Alternatively, as in the <figref idrefs="S49">27</figref> and <figref idrefs="S50">30</figref> shown, , a bearing seat or a lug <figref>1044</figref> at each of the first be formed and second cover. As best seen in<figref idrefs="S44">9</figref> and <figref idrefs="S50">30</figref> shown, extends a rod member <figref>146</figref>. <figref>1046</figref> of a Base <figref>150</figref>. <figref>1050</figref> the first element adjacent one of the bearing seats upward and has a socket <figref>148</figref>. <figref>1048</figref> on, coaxially formed therein. Alternatively, as best shown in<figref idrefs="S53">39</figref> to see, is the basis <figref>1150</figref> as part of the second cover member formed and includes an opening <figref>1148</figref>. which is shaped so that the lower portion <figref>678</figref> of actuator receives.

According to the <figref idrefs="S44">8</figref> to <figref idrefs="S44">9</figref> fit the second cover member <figref>138</figref>. <figref>1038</figref>. <figref>1138</figref> With the first cover <figref>136</figref>. <figref>1036</figref>. <figref>1136</figref> so together, define therebetween a receiving space is formed. The includes second cover a vertical wall <figref>152</figref>. <figref>1052</figref>. <figref>1152</figref>. a portion of which defines the concave surface <figref>132</figref>. <figref>1032</figref>. <figref>1132</figref>. shaped so, that they with the outer surface support block mates. From the vertical wall<figref>152</figref>. <figref>1052</figref>. <figref>1152</figref> extends an upper, horizontal flange <figref>154</figref>. <figref>1054</figref>. <figref>1154</figref> and mates with the vertical wall of the second member in overlapping Relationship together so that the top of the module closed becomes. In an alternative embodiment, the upper flange <figref>1154</figref> as part of the first cover educated. The upper flange<figref>154</figref>. <figref>1054</figref>. <figref>1154</figref> has an opening formed therein <figref>156</figref>. <figref>1056</figref>. <figref>1156</figref> on, which to receive the &lt;?page 14?&gt;upper range <figref>74</figref>. <figref>574</figref>. <figref>674</figref> of Rod member is formed. In one embodiment, the upper surface of the Flange parallel with or below the upper surface of the support block arranged so that it does not overlap with the container when in Toward the support block depressed becomes. Alternatively, as in the<figref idrefs="S44">8</figref> and <figref idrefs="S44">9</figref> to see is the module housing with a semi-circular recess <figref>155</figref> provided that shaped to receive the hub is when the container is actuated, whereby the surface <figref>108</figref> of container with the upper portion <figref>74</figref> the actuating element in engaging comes and the surface <figref>108</figref> adjacent to the surface <figref>154</figref> of module housing is positioned when the valve is moved to the open position. A bottom edge <figref>158</figref> of the vertical wall mates with the base <figref>150</figref> of together first cover member to cover the bottom of the module. how in the <figref idrefs="S44">8</figref> to <figref idrefs="S44">9</figref>. <figref idrefs="S48">25</figref> to <figref idrefs="S49">27</figref> and <figref idrefs="S50">30</figref> shown, the cover members together by sliding engagement of vertical flanges <figref>160</figref>. <figref>1160</figref> the first cover with grooves <figref>162</figref>. <figref>1062</figref>That on the second cover member are formed, respectively. tabs<figref>220</figref>. <figref>1061</figref>. extending inward are in slots <figref>222</figref>. <figref>1063</figref> snapped, which are formed in the second cover member. In the embodiment, in accordance with the <figref idrefs="S49">26</figref>. <figref idrefs="S49">27</figref> and <figref idrefs="S50">30</figref>. There is a tab member <figref>1067</figref> with an opening <figref>1071</figref>. in a wall element <figref>1069</figref> is formed, in engagement, the above addition, a portion of the outer surface of the concave module housing defined. Alternatively, it should be noted that the first and second cover with fasteners, adhesive, or the like can be connected..

how best shown in <figref idrefs="S44">7</figref>. <figref idrefs="S46">15</figref>. <figref idrefs="S51">32</figref> and <figref idrefs="S55">48</figref> to see the upper portion extends <figref>74</figref>. <figref>574</figref>. <figref>674</figref> of Rod member through the opening in the upper flange of the first cover and engaged with the top surface <figref>108</figref> of container is disposed in engagement, which is turned over in the housing when the Cover members are assembled to form the module housing. Alternatively, the actuating element on the hub of the container be attached to the mounting ring as described above. In such an embodiment, extending the arm member of the actuating element from the ring by the opening in the upper surface of the first cover to bottom and is arranged to it selectively Way the ratchet engages. The insertion of the arm into opening vehindert that the canister and attached fastening ring rotate, whereby the arm member out of position for a chosen Engagement would move the ratchet.

We best shown in <figref idrefs="S44">9</figref> and <figref idrefs="S48">25</figref> shown, is the lower portion <figref>78</figref>. <figref>578</figref> the rod member movable within the socket <figref>148</figref>. <figref>1048</figref> added, in the rod member <figref>146</figref>. <figref>1040</figref> is trained, projecting from the base of the second cover member. alternative , the lower portion <figref>678</figref> in the opening <figref>1148</figref> recorded be like in <figref idrefs="S53">39</figref> shown. According to the<figref idrefs="S44">9</figref>. <figref idrefs="S48">25</figref> and <figref idrefs="S53">39</figref> is a feather <figref>88</figref>. <figref>588</figref>. <figref>688</figref> to the lower portion <figref>78</figref>. <figref>578</figref>. <figref>678</figref> arranged and contains in certain embodiments, a lower end, the rod member at <figref>146</figref>. <figref>1046</figref> assembled is. The upper end of the spring biases the upper abutment surface<figref>86</figref>. <figref>586</figref>. <figref>686</figref> of staff member <figref>72</figref>. <figref>572</figref>. <figref>672</figref>, The spring presses the rod member within the housing upwardly so that the upper section <figref>74</figref>. <figref>574</figref>. <figref>674</figref>Protrudes through the opening and in engagement with the upper surface of the container <figref>108</figref> comes.

in one in the <figref idrefs="S44">8</figref> and <figref idrefs="S44">9</figref> illustrated embodiment, the snail <figref>40</figref> and the ratchet wheel <figref>32</figref> swiveling in bearing seats <figref>144</figref> supported that formed in the second element are. Preferred are opposite Ends of the axle <figref>42</figref> snapped into the bearing seats. The display element <figref>50</figref> is rotatably supported by the second cover member stored so that the worm wheel with the worm in engagement occurs when the cover members are connected together. especially contains the second cover a pair of downwardly opening flap members <figref>164</figref>. <figref>166</figref>, The axis <figref>56</figref> the display element is in the first tab member <figref>164</figref> recorded and a hub portion <figref>59</figref>, The between the worm wheel and the indicator wheel is disposed in the second tab member <figref>166</figref> added. Prefers the axle and hub are snapped into the lugs, can but rotate freely therein. When the cover members connected to each other are, the display element and in particular the worm is between the tab members and the screw included.

in one in the <figref idrefs="S48">25</figref> to <figref idrefs="S49">27</figref> and <figref idrefs="S50">30</figref> shown, alternative embodiment, the axis <figref>556</figref> on opposing Ends by the tab region <figref>1044</figref> stored, that of itself each of the upper and lower cover <figref>1036</figref>. <figref>1037</figref> extends. The axis <figref>556</figref> has a T-shaped cross section is formed, as a result, a casting method, For example, if the axis formed or cast integrally with one or more of the cover members for the module housing. The Form the axis allows further that as a key member acts when they received in correspondingly shaped sockets is formed in one or more of the strap areas are. The axis extending from the tab region outward. The contains axis opposite curved surfaces <figref>555</figref>. <figref>557</figref>. as best seen in <figref idrefs="S52">35</figref> to <figref idrefs="S52">38</figref> to see the wing a for the create display elements that are rotationally mounted on it. the Skilled artisan would be clear, &lt;?page 15?&gt;that the axle may also have a circular cross-sectional area and turning on the housing could be mounted. may in such an embodiment, at least one of the display elements are formed integrally with the shaft be, or old, these elements may be mounted separately thereon.

it it should be noted that in the alternative embodiment, the <figref idrefs="S42">2</figref> to <figref idrefs="S43">5</figref> the support structures for the screw and the ratchet wheel, including the bearing seats or the like. Support facilities and the support structure for the display element, including the tab elements are equal to the structure provided in the module housing include, but are integral to the housing were cast. Similarly, a bar and socket member be integrally molded in the bottom of the Dispensergehäuses to the actuator and to store the pen.

Although the embodiments the display unit of <figref idrefs="S48">25</figref> and <figref idrefs="S53">39</figref> so have shown that they are preferably mounted in the display module, is pull the expert in the same way in whereas the unit, containing the axis, the display elements, the actuator and the spring, right the dispenser housing or Betätigerschuh could be mounted, the container carry. Similarly, could the engagement member or members, and the return-blocking element or the Elements in the dispenser housing, the container superimposed, which is referred to elsewhere as Betätigerschuh, be formed.

in one in <figref idrefs="S46">19</figref> shown, alternative embodiment, is a lower region <figref>172</figref> the outer vertical wall of the module housing is angled, so it with a housing match having an equally angled planar bottom surface. As in <figref idrefs="S46">19</figref> shown is the axis of rotation of the display element at an angle of about 45 ° relative to the longitudinal axis aligned so that the end face of the indicator wheel <figref>60</figref> in the Substantially parallel to the angled surface of the housing. A viewing window is in the angled surface <figref>172</figref> scheduled and is aligned with a corresponding viewing window, which is provided in the angled wall of the Dispensergehäuses.

in the <figref idrefs="S47">21</figref> to <figref idrefs="S47">23</figref> is a key element <figref>300</figref> shown, the base region a <figref>302</figref> with a deepening <figref>304</figref> which is formed so that the Top of vessel receives. The base portion is circular shaped and is in the Center open. The key element is the container by pressing a peripheral flange <figref>306</figref>Forming the recess to the container mounted, so that the valve stem and the hub through an opening <figref>308</figref> pass, which is formed in the center of the fit member. alternative the key element is the container be mounted with adhesive or other fastening means. The contains key element still pass area <figref>310</figref>Extending from the base portion extends downward. The pass range is preferred as a circular flange formed, although other shapes are also suitable.

in the in the <figref idrefs="S48">25</figref> and <figref idrefs="S51">32</figref> to <figref idrefs="S51">33</figref> shown, alternative embodiments contains Fit element <figref>1300</figref> a mounting area <figref>1302</figref>. as the tire element having a plurality of ribbed portions <figref>1304</figref> educated is. The mounting member<figref>1302</figref> is dimensioned so that it end over the the container fits, so that the ribbed areas take a portion of the container. A plurality of arm members <figref>1306</figref> secure a key area <figref>1308</figref> at the Mounting member.

in a further alternative embodiment according to <figref idrefs="S51">34</figref> has the mounting element <figref>1402</figref> a smaller diameter than the key area and is coaxial with the key area arranged. A base member<figref>1404</figref> connects the mounting element and the key area. The mounting member includes a Plurality of inwardly extending tab members <figref>1410</figref>, the with an outer bevelled surface of the hub region <figref>106</figref> of the container are engaged.

in the in <figref idrefs="S48">25</figref> and <figref idrefs="S51">34</figref> shown embodiments is the fit range <figref>1308</figref>. <figref>1408</figref> as a circular flange with a plurality of apertures formed therein <figref>1312</figref>. <figref>1412</figref> to his formed circumferentially so that air through the key element low restriction flow through can. In the exemplary embodiment, the in the <figref idrefs="S51">32</figref> and <figref idrefs="S51">33</figref> shown is, contains the key area <figref>1508</figref> two coaxially mounted key areas of different diameters, each with a plurality of openings <figref>1512</figref>. the flow to facilitate air.

The embodiment the display module in accordance with <figref idrefs="S47">21</figref> has a feather-entry recess, as well <figref>312</figref> is formed in an upper surface the module housing is provided. In this embodiment, the recess preferably a curved shaped or semi-circular slot. The actuator <figref>314</figref> extends away from the module housing upwardly in the slot. The actuator<figref>314</figref> shall substantially aligned with or below the upper surface of the module <figref>316</figref> kept. In this way, by the actuator are not applied to the user's finger to accidentally the Display element forward bring and thus an inaccurate reading of the number of Th&lt;?page 16?&gt;sierungen, in the container remain or to cause the resulting output number.

The Shape or diameter of the key portion and the corresponding Entry recess are formed so that the key range with the module housing interacts formed recess and received therein. When the container the dispenser housing is mounted so that the valve stem in the bore in the carrier block is received, the key portion is received in the recess and communicates with the actuating element engaged.

in an alternative embodiment of the Dispensergerätes, with or without a display module or a display unit, can a feather-entry recess directly in the dispenser housing, for example, are formed in a bottom portion of Dispensergehäu ses, wherein it receives a key portion which is disposed on the container. It should be noted that the term "housing" as used herein, to the dispenser housing, the display module housing or a combination of housing can relate. In a still further alternative embodiment are of the key area and the feather-entry recess interchanged. In this embodiment, is the key area of ​​the housing formed, ie the display module housing or on the dispenser housing when the Dispensergerät no display module and / or no display unit contains, and the feather-entry recess is formed on the container. For example, the module housing or the dispenser housing comprise a ring member received in an annular recess is that in the hub of the container is trained. The dispenser housing or the module housing can also be designed such that it contains one or more protrusions are recorded in one or more recesses formed on the container.

On this way of containers the different types of substances, such as drugs that included, fit elements with differently shaped key areas be attached in order to prevent that the user the container and Dispenser mixed. In operation, a container of a particular key element with a specific fit portion comprises, installed in a dispenser housing are having a recess for receiving said key portion is formed. If the key field does not fit into the recess, the key ring is with the upper surface of the module housing in Engagement, so that the actuating the container relative to the dispenser housing and its associated opening of the valve is prevented. This in turn prevents a user container with different substances in different dispensers installed, what the count the output from the container boxes or the counting of the might affect the number of doses remaining therein adversely. So will for example, prevents a key elements with a Feather portion having a thickness of 1 mm and an inner diameter is installed by 13 mm in a recess having a width of 1 mm and an inner diameter of 15 mm, and vice versa.

it it should be noted that the matching combination the keyway element and the feather-entry recess also can be used with various delivery systems, If no display device, as described above have. Often can delivery systems be designed such that it comprises a special type of substances administer. Since a different delivery system trained the administration of the desired substance, such as a drug, not maximized, it could be important to ensure that a specific delivery system is used with a special substance. In this way a matching combination of a key element and a key entry port at one of the containers or housing or a similar Structure of the delivery system to be mounted to ensure that the correct container is installed to the appropriate delivery system.

in the alternative embodiment, the <figref idrefs="S48">25</figref> contains the module housing three pairs upwardly protruding elements <figref>1080</figref>. <figref>1082</figref>. a slot or recess <figref>1084</figref> between each pair form. additionally the upwardly projecting elements of a pair <figref>1082</figref> as channels formed, which open up to today. The elongated recess<figref>1056</figref>. which is formed between the pair of members is shaped so as to the upper portion of the operating member <figref>574</figref> receives. In operation is the key area <figref>1308</figref> the fit element shaped so that it in the various radially formed slots added or depressions or feather-Eintrittsausnehmungen can be, so that it in the actuator engagement is disposed in the elongated recess. If the container in terms of the module housing is moved, to move the valve to the open position, inserted the hub of the container in a recess between the inner, upwardly projecting Elements of each pair is formed.

in the embodiment in accordance with the <figref idrefs="S51">32</figref> and <figref idrefs="S51">33</figref>. are three sets three ste up&lt;?page 17?&gt;Henden elements <figref>1180</figref>. <figref>1182</figref> provided each of the sets two slots <figref>1184</figref> disposed between the elements are formed so that they to receive the two key areas <figref>1508</figref> of Fit element <figref>1500</figref> are formed. Again, a forms Set of three elements <figref>1182</figref> an elongated recess or depression <figref>1056</figref>Adapted to receive the actuating element is formed. The design with the two key areas allow a variety of combinations of shapes and diameters the key areas so that your own key combination for each of the Variety of substances can be created, which different from the containers is output.

Although the circular Training of key range and the corresponding slots, which are shaped to receive the key portion, as shown in Fig., Are preferred since they within a rotation of the container the Dispensergehäuses about its longitudinal axis permit, it should be noted that the key area and the slot, or a similar Recess or keyway hole, in any type of mating Embodiment may be formed, and that the matching Forms are not limited to the circular configuration. Shown in FIGS.

Of the Display Module provides a cost-effective and accurate means for counting the dose of a drug or the like. The module can be used for a light Installation as a separate unit in most conventional Installation housings with minimal changes of the housing what the arrangement of a viewing window in the housing in alignment with the Viewing window of the module and the removal of any structure formed between the support block and outer wall the housing comprises, are measured. additionally the module can reverse the support block be installed so that it is the air flow which outputs the drug, not affected or impeded in any other way.

Although the present invention with reference to preferred embodiments has been described, it is to the skilled person that modifications may be made in form and detail can, without departing from the spirit and departing from the scope of the invention. Accordingly, it is planned, that the above detailed description only as exemplary and is not considered limiting, and that it is the appended Claims, including all equivalents, are intended to define the scope of the invention.