Product dispenser

The invention relates to a dispenser for media, gaseous, may be liquid, pasty and / or powdered. Of the Dispenser is convenient free to carry with one hand and to operate simultaneously with this hand and apply. Substantially all parts, in particular housing parts, may consist of plastic or injection molding so that their Wall thickness is not more than 5 mm or 2 mm. The Medium is particularly finely dispersed in a fluid stream, promoted as a gas or air and in exactly as possible discharged dosed single quantum and purpose within the Apparatus sufficiently fluidized by multiple deflection will.

If the dispenser for inhaling a pharmaceutical serve medium, so it is advantageously the flow added until during the application, which is previously much more compressed and stored compactly.

The invention is based on the object of a donor to create, in which disadvantages of known configurations avoided or benefits of that kind are to be achieved and in particular, a precisely dosed, low until the internal End of the airways of a patient reaching introducing the Medium in fine atomization at an ergonomically favorable Handling guaranteed.

According to the invention means are provided to the medium within very fine to unlock the feed paths of the donor, reciprocating example, by only one or more times Movement of the medium. For example, existing larger particles into smaller particles on at least two opposing baffles are separated. in the Case of a powder, this with or without the air stream Memory initially downward trough-shaped in an impact or Baffle reach. Thereafter, it is by the air flow raised from this first surface at high speed, swirled and spun on an opposite wall. This leads to a crushing of possibly clumped Powder. The proportion of respirable, ie is advancing up in the patient's lungs particles thereby significantly increased compared with those donors, which only for nasal administration or for application of the medium are provided in the throat area.

The first or another surface as above may also Latch or template for at least part of be provided single-application dose of the medium. At least drops a part of this dose of the flowable medium then during the opening and if necessary thereafter to the template is expanded channel-shaped upwards. The only thereafter incipient flow is this media from the template lifted by turbulence. Immediately thereafter, it is against hurled the overlying wall and on this again deflected in the direction of fall to the outlet or mouthpiece.

The flow passes through appropriate through appropriate sealing full memory space. Thus, in the memory remaining residues of the medium entrained to the outlet. These residues come from the memory without contact directly on the template. This may inclined sliding surfaces exhibit. This allows the media under its own weight without flow to the lowest point the template reach.

Zwischem the reservoir outlet and the template can still provided partition member for fanning the media stream be, for example, a mandrel or a tip. This is also to open the memory. The tip protrudes into the Storage space or the medium contained in this inside.

Advantageously, the conveying path between the memory and the Outlet at which the medium with complete detachment emerges from the dispenser into the open, as short as possible. From the Fluidization is the conveyance as straight as possible or only once obtuse angled or curved. This results in low pressure losses. The first way is between the reservoir outlet and the turbulence zone shorter than the second flow path between the center of this Fluidization zone and the outlet. The second way is more than four or three times longer than the first way. The middle the fluidization zone, with the center of the opposite Baffle coincide. The lowest flow area the conveyor paths is advantageously less than the continuous constant passage cross section of the storage space and is strategically positioned on the crossing. This is the narrowest Out of the two faces opposite limited. These direct the media to the presentation in the Outlet leading end channel. The latter can continuously constant have flow sections.

The straight end channel forms at one end the outlet. This and the end channel are at an angle to memory or main axis of the device. This can therefore at oral administration with easy zurückgeneigtem head nearly be held vertically. The thumb of the operator then between the upper lip and mouth piece and can at both applied.

In the conveying paths may be upstream and / or downstream provided by the storage space a pressure-dependent opening valve be. Only after reaching a predetermined negative pressure downstream of the valve, flow is increased by the Valve opening abruptly initiated. This results in very high flow rates. The valve may be a his sleeve valve.

These and other features of the invention and from the Description and the drawings, whereby the individual Features, either singly or in the form of Subcombinations in an embodiment of the invention and may be in other fields. embodiments of the invention are illustrated in the drawings and are explained in more detail below. In the Drawings:<dl tsize="7"><dt>Fig. 1</dt><dd>an inventive dispenser in axial section,</dd><dt>FIG. 2</dt><dd>the dispenser according to FIG. 1 in a partially cut View from below and</dd><dt>Fig. 3</dt><dd>a detail of a further embodiment, with pressure generator for a flow.</dd></dl>

The dispenser 1 has a main body 2 of only five housing parts 3 to 7 on. From this form in standby or Operating state of only three parts tightly connected 3, 4, 6, together with a magazine unit 8 the entire Outer surface of the discharge device 1. The part 5 is completely sunk firmly seated in Part 3 and defined by the part 4 directly axially secured. The unit has 8 minimum of four and maximum eight evenly spaced and immediately adjacent to each other in a ring around a Axis 10 arranged storage locations to 9 for the medium. The Axis 10 is parallel to the main axis 11, in which the respective standing in the operating position is number 9. Directly from this position, the space 9 for the discharge emptied through an outlet 12th Its axis is below 13 an obtuse angle of at least 110 ° and at most 160 °, in particular 135 ° to the axis 10 and 11. In view parallel to the axis 10, 11 is the outlet 12 completely within the outer circumference of the base body second

Completely within the base body 2 is a whose both ends connecting fluid guide 14 and channelization provided. Between the ends of which is a reservoir outlet 15, submit to the media. The outlet 15 has a substantially smaller distance from the upstream end of the Guide 14 as of the outlet end 12. The outlet 15 by an end of an elongated, separate storage body 16 formed with elongate storage space 17th This is 11 coaxially in the discharge position to the axle. The dimensionally rigid body 16 is a two-piece through Capsule of hard gelatin o. The like. Formed. Their both tubular Parts are closely fitted to each other axially adjusted. The capsule mutually remote ends are hemispherical. The medium contained in the chamber 17 is before opening sealed with a device 18 packaged. The non-gaseous flowable medium fills the space 17 completely or only partially as a single application dose. The body 16 and space 17 is only by destruction open. It forms in operation over its entire length a reaching portion of the guide 14. The two at the Space ends lying openings throttle like much narrower than lying between the ends of the room 17th This part has throughout a constant flow cross sections.

The exposed, formed only by the parts 3, 4, 6, 8 Outer shell 19 of the device 1 can with one hand be almost completely enclosed. Within this Jacket 19, the guide 14 forms a zone 20 for swirling, Crushing and finely distributed processing of Medium. The media was already upstream of the zone 20 taken up by the air stream. Centrally between the ends of the Guide 14 and the device 1 is in the operating position below the outlet 15 a bowl or trough-shaped Template 21 is provided. It is open only upwards. you Has bottom 24 from the outlet 15 a with respect to the length of the Space 17 smaller distance. The concavely curved bottom 24 followed by a long flank 22 and a shorter edge 23 at. The flanks 22, 23 diverge at an acute angle upwards. Between the axes 10, 11 but closer to the axis 10 lying common axial plane of the surfaces 22 to 24 and the Trough 21 is laterally offset from the axis 11 of the outlet 15 added. The outlet 15 is situated vertically above the center of the Floor 24, when the device 1 in the operating position slightly is tilted backwards. The axis 13 is shallower inclined than in the vertical orientation of the axes 10, 11 is.

The edge 22 includes sealed at the outlet 15th The Edge 23 extends only to a restricted transfer 25 between the trough 21 and the downstream thereof lying Part of the guide 14. The edge 23 extends to a rounded Edge 26 which is concave along its length. The edge 26 is opposite an overlying concave face 27th It is like the recess 21 a to the axes 10, 11 perpendicular transverse axis curved. she has a relative to the ground 24 at least four or greater fünfach Radius of curvature. The surface 27 extends in and against the flow direction beyond the limited of the edge 26 crossing 25 addition. The surface 27 extends up to the outlet 15 and as Peripheral boundary into a channel section 28. This includes downstream of the passage 25 and the edge 26 at.

closes the downstream end of the section 28 obtusely curved at a terminal duct 29th its end forms the outlet 12. The axis 30 of portion 28 is parallel to the axis 10, 11 and on the side facing away from the axis 11 Side of the axis 10. The two channel sections 28, 29 each straight. You have constant throughout Flow sections, which is greater than that facing downgrading 25 are. The section 29 is by a freely projecting, tubular joint 31 of constant external cross-sections educated. The mouthpiece 31 is a major introducing part of its length in the patient's mouth, and with its lips to enclose tightly. Section 29 may be slightly longer than the portion 28 to the Edge his 26th Cavity 21 and nozzle 31 are at the same Page of the section 28th

The tray 21 including the surfaces 22 to 24, 26 and a first longitudinal section of the channel portion 28 is solely limited by the part. 5 This is contrary to the flow direction completely in the part 3 to the stop used sunk and also through in this direction employed part 4 axially secured. The part 4 forms a subsequent within the part 3 longitudinal section the channel portion 28 and the portion 29, the nozzle 31 and the outlet 12. The part 4 is connected via the outer circumference of Part 3 does not and shall propose at its lower, annular End face with an annular shoulder sealed on. The Surface 27 extends over an arc angle of less than 90 ° and more than 45 °. The surface 27 is only through the part 3 formed and continued steadily at both ends. So it forms an intermediate portion of a semicircular or halkugelförmigen or U-shaped inner surface of the part of the third This inner surface has a continuation which at the surface 27 anschließendt. The part 5 is convex Faces on this sequel close to. Following the Part 5 is the portion 4 with a peripheral surface close to the Continued on.

The edge 22 extends up to these curved surfaces. The Area 27 is in the area of ​​the outlet 15 and the terminal to the edge 22 of a transfer opening 46 for the Medium and the air stream passes through. The opening 46 is in the axis 11 corresponds to the flow cross section of the opening 46 the largest flow area of ​​the space 17. The Width of the passage opening 46 is larger than the largest Vastness of space 17. The recess 21 is located between the axles 11, 30. The greatest width of the trough 21 is equal to the edge 26 greater than the corresponding depth of the trough 21. The Channel sections 21, 25, 28 are parallel to the drawing plane lying on limitations. You can almost just as well be parallel to each other. Then, the device is in the accompanying Area in an axial web-shaped. This area can as the said surfaces, but also rotationally shape around the axis 11 may be curved.

A distance above the assemblies 12, 29, 31 forms the Part 4 of the body 2 is a spherically curved handle 32. You includes a right angle across the entrant, acute angle to the axis 11 at the rear end of the outer circumference of the mouthpiece 31 at. To which remote area, the area increases 32 up to the outer circumference of the jacket 19 at. The other handle 33 is formed by the rear end of the body 2, namely by the outer side of the end wall of the part 6. The two Manage form a handle 32, 33. The thumb can to rest of the handle 32 and another finger of the same hand can clamp-like abut the remote therefrom handle 33rd At the same time, the mouthpiece 31 between the lips is the patient introduced. In this case, the finger, which is supported on the convex handle 32, also on the upper lip the patient and with its side facing away from them Creating on the outer periphery of the mouthpiece 31st The handle 32, 33 are during the entire operation and Austrages positionally rigid to each other.

The unit 8 has a movable around the axis 10 magazine body 34. This is axially fixed between the parts 3.6. It carries on its exchangeable the part 6 facing side a magazine insert 35 with the said number the storage body 16. The body 34 has for each place 9 a holder 36 which freely protrudes in the direction of flow is and sleeve-shaped. The holder 36 encloses sealed and close only the lower end of the body 16. By narrowing forming the jacket 36 forms a stop for the lower, curved end surface of the body 16. A corresponding bracket 37 is only in the direction of flow. It is substantially shorter than the holder 36. For each place 9 am Insert 35, a jacket 37 is provided. It is only available on the lower end of the insert 35 against, the circular or otherwise disc-shaped flat. The sleeve 37, engages with a conical outer periphery in a conical inner surface on the rear end of the bracket 36 a. So it is radially narrows close to the outer circumference of the narrower part of the body 16 at. Its extended cover part can with its end face bear against the upper end face of the insert disc 35th This extends this rear end and the cover part contrary to the flow direction without contact in the interior the part 6. The lower longitudinal portion of the capsule 16 is completely in the holders 36, 37 and passes through the Body 34, 35. As each of the other parts is 3 to 7, 35 the body 34 in one piece. He points at the extreme Extent a jacket 38. Adjoining the inner circumference with distance between its ends an end wall at. 39 about the underside of which are the holders 36 before. On the top Face is the use of 35. The outer periphery of Jacket 38 forms a handle 40. it extends around the axis 10 and over an arc angle of at least 90 ° or 160 ° no more than 220 °, in particular, only 180 °. It is on the outer periphery the body 3, 6 free only on this angle for actuating accessible. In the operating position the constricted end is or the outlet 15 of the holder 36 immediately adjacent the passage opening 46 in the surface 27 or to the outside the curved wall 47, which forms the surface 27th

The body 34 is completely on this outside. He is directly on part 3 with two concentric bearings 41, 42 mounted rotatably and axially in the opposite direction secured. The bearing members are formed integrally with the part. 3 They are lying through two inter-bearing body for example, formed sleeves against the flow direction freely protrude. With their end slide Sleeves on the underside of the wall 39. The outer sleeve of the outer bearing 41 slides with its outer periphery to the inner periphery of the shell 38 and with its inner circumference on the outer peripheries the brackets 36. The inner sleeve of the inner Bearing 42 slides with its outer periphery also to the Outer peripheries of the holders 36 who share a purpose form the inner circumference. Between the two sleeves, the opening is located 46, which connects to the outlet 15th The two sleeves go in one piece into the curved wall of the area 27th The sleeve bearing 41 is eccentric to the axis 11 of the including subsequent housing part 3, 4 of the body 2 provided and standing on the side facing away from the handle 32 Page on the parts 3, 4 before. For axial securing may at one of the sleeves, in particular between the outer periphery of provided the inner sleeve and the body 34, a snap connection be. is After complete removal of the part 6 the insert 35 including the deflated body 16 opposed Flow direction to pull out. The body must 34 not be extracted from the storage 41, 42nd

Another radial and thrust bearings is on the upper side the body 35, 39 is provided. For 43 slides the mantle of Part 6 on this side on the inner circumference of the jacket 38 and is at the upper end face of the body 35. The body 35 held in close contact with the top of the wall. 39 The jacket 43 forms only a part of the circumference and the Outer sheath of the part 6, as he is eccentric to this outer jacket lies. Outside of the bearing member 43 engages this Outer jacket tightly into the interior of the shell of the part 3 on. Here, the outer sheath by a resilient Snap lock secured against being pulled off. By application a correspondingly high withdrawal force he can still receive The flow direction will be replaced. After this detachment is the body 35 with the bodies 16 freely accessible for replacement.

The apparatus 18 comprises two in the axis 11 and to each other opening opposite members 44, 45. you are through formed metal tips and serve to break up the end walls of the capsule 16 during the switching movement of the unit 8. The capsule 16 is characterized in the final stage of the transfer detected in the operating position by the links 44, 45 and fragmented at the ends. Then stick the pointed in the space 17 in each of a jagged opening surrounded. The associated transfer opening 46 of the curved Wall 47 is penetrated by the member 44th It is on the wall 47 secured in position with the arms of a star-shaped bracket. The outer periphery of the tip 44 forms a guide surface. By they are the medium and the air flow in a sheath flow widened. The rear tip 45 is on the inside of End wall of the part 3 is fixed. The tips 44, 45 are coaxially against each other. The ring 38 is provided with a Display means for its rotation position is provided and engaged resiliently into any operating position.

To use the dispenser 1, the ring 38 is rotated so far until the next capsule 16 is located in the axis 11 and then to both ends open. Opening trickles part of the medium along the top 44, then a free drop distance and then along the edge 22 or 23 on the floor 24 of the trough 21. Thereafter the patient sucks on the mouthpiece 31st In this case through openings in the housing space, wherein the upper end of the capsule 16 and the top 45 receives, from outside air is sucked. It flows through the upper opening of the Capsule 16 into the space 17th

The air flows through the space 17 while entraining the rest of the medium, which is still in the room 17th The mixed media then flows through the outlet 15 to the top 44 around immediately in the opening 46. From this it flows against the closer to the outlet 12 lying edge 22. The flow is along the edge 22 and the bottom 24 is deflected back to the top, tears off at the edge 26 and is directly opposite the surface 27 passed. Here, the delivery rate increases in the the trough 21 contained medium. In the area of ​​the trough 21 can briefly create a swirling flow. By Suction accelerates the flow. The flow flows through the passage 25 into the channel 28, 29. There there is a flow calming, which extends up to the outlet 12 continues. Upon striking the surface 27, opposite which is the edge 23 on a radial line, be larger media particles crushed by impact effects. For the next application is the unit 8 for a place 9 further rotated. The unit 8 is a Freilaufgesperre rotatable only in a single direction.

Downstream of the outlet 15 and the overflow 25 is appropriate in the duct 28, a sieve 48 or a filter is provided. It is inserted between the parts 3 4. This may eventually chipped particles of the capsule 16 or large Media particles do not enter the throat of the patient. Further, in the flow path, namely, upstream or downstream of the chamber 17, 49 can be provided a valve. It opens pressure dependent when downstream a lesser Pressure than upstream rests. The valve can with increasing Opening a constant or decreasing opening force exhibit. Then it opens abruptly after the start of opening complete and the flow is released in pulses. The valve 49 returns pressure related back to the closed position. The valve 49 is close to the outlet 12 inside the channel 29 This is the portion upstream of the Guide 14 when resting against the ingress of contaminants tightly closed. The part 7 is a protective cap educated. It is axially fully for use withdrawn. The part 7 takes in protective position the nozzle 31 including opening 12 and the entire part 4 and the lower portion of the part 3 sealed on.

In Fig. 3, only the upper portion of the dispenser from the Part 6 shown. At its top is a pressure generator an air pump 50 is located. The upper end wall of the part 6 forms here not a handle, but is facing a Top free protruding shell 52. In these, a cup-shaped Piston 41 with his coat until it stops at the End wall of the part 6 firmly inserted. extended Piston lip protrudes beyond the upper end of the jacket 52nd The Piston lip slides on a cylinder 53. This surrounds the The outer periphery of the jacket 52 closely. The cylinder 53 may be up to Stop on the end wall of the part 6 against the force of a Spring 54 are moved downward. This air through an opening 55 in the piston head as well as in the end wall of Part 6 of the top 45 around the capsule 16 supplied. The pump 50 is located in the axis 11. The end wall of the cylinder 53 forms the movable handle 33. After their release returns the pump under suction of fresh air to its initial position back. Here, the way through the opening 55 with a valve, for example, the valve 49, against sucking be closed. Again, the air flow can by alone Suction generated through the opening 12 and at any desired Time are amplified by operating the pump 50th FIG. 3 the insert 35 in its exchange position for themselves and shown without the use 34th

All indicated effects and properties, such as documents, Sizes, etc., can exactly as described or just or be provided substantially as described and according to also differ greatly purpose thereof. The dispenser may its scale is formed according to FIGS. 1 to 3 The Boundary surfaces of the areas in contact with the medium come, in particular the areas 12, 14, 18, 20 to 29, 44 to 46, 48 and 49, can use a non-stick or antistatic Coating of metal and / or plastic, such as be tetrafluoroethylene, provided. As a result, adhesion the medium by electrically charging or the like. avoided will. The coating is only a few microns thin. they can or the like by painting, gluing, printing. on the surfaces said areas to be coated.