A supply container

The invention relates to a device for supplying a Anesthetic delivery device with a liquid anesthetic of at least one Reservoir.

Such an apparatus is not in the Prior DE OS 34 01 923 or in the DE-PS 32 22 047 describes.

The older device for mixing liquid Anesthetic into the patient to be fed contains various breathing gas, with the respective Anesthetic anesthetic filled tanks. Each single anesthetic tank is its own Feed line to an anesthetic switchover connected. When changing from an anesthetic to another connects the anesthetic switchover the respective anesthetic supply with a Anesthetic pump which the anesthetic agent to the An anesthetic vaporiser passes.

Such anesthetic stocking over several the anesthesia machine to be placed anesthetic tanks requires appropriate room in the anesthetic machine, which for the use of only one or two are anesthetics otherwise exploited , since although the other anesthetic tanks available are, but are not required. The filling of the Anesthetic tanks must directly on the anesthesia machine take place, whereby an undesirably long downtime must be taken for the entire device in buying because during the filling of anesthetic tanks Use of anesthesia equipment shall be interrupted. The unavoidable leakage during filling of Anesthetics cause stress on the Ambient atmosphere, and thus of the anesthesia machine operating personnel. The automatic Switching from an anesthetic to the tank other planned anesthetic switch requires another, additional space in the anesthesia machine beanspruchendes equipment part.

The known from DE-PS 32 22 047 Anesthetic delivery means consists of a Evaporator, to which a storage container for liquid Anesthetic is permanently installed. evaporator and associated reservoir are as a unit over Coupling piece connected to an anesthetic machine. in the Operation of the evaporator to a desired Nominal concentration of gaseous anesthetic agent set, whereupon from the storage container a appropriate amount of liquid (wicking) Evaporator evaporates and the coupling piece is discharged in vapor form to the anesthesia machine. Evaporator and associated anesthetic form in Operating a unit, because different Anesthetic different have evaporation properties (vapor pressure curve). Should during anesthesia from an anesthetic are changed to the other, must have a Switching mechanism, the coupling piece from the one The evaporator can be switched to the other. In order to not by mistake after the non-switching connected evaporator is operated, the must Switching mechanism with a coupled be provided blocking device, which the evaporator mutually blocks and releases.

The present invention is the Task of providing a device of the above improve style so that even when free of confusion Application of several different anesthetics in Device the space for only a single to be provided reservoir needs, in which optionally also a way to monitor its filling level is.

The problem is solved with the characterizing Features of claim 1.

The advantage of the present invention is therein see that when changing from one anesthetic to another of unneeded accordingly Reservoir as an independent module against a other, already with the new required anesthetic -filled reservoir can be replaced. The exchange time required depends only of on how fast the connection with the Anesthetic supply can be produced. This However, in the useable for this purpose known Connectors in such a short period possible that the use of the anesthetic device when Switching between different reservoirs only for an insignificant short period under interrupted. It is also possible, an empty Reservoir to quickly by a new to replace filled reservoir, whereby the Filling even at designated workstations out of range of anesthesia machines can be carried out. The once filled Reservoir is then as an independent unit transportable and storable. Even before or during use of anesthesia equipment can in During anesthesia required reservoir with filled appropriate anesthetics and in If required, be used at anesthesia machine without a significant down time for the anesthetic machine accept to have. In addition, the Possibility of using different anesthetic no longer dependent on the number of fixed in Anesthesia machine built anesthetic reservoir. Since the space for only one a reservoir in Needless to anesthesia machine provided is Another space even when using multiple Reservoir unnecessary.

The reservoir is provided with an identifier, enabling the user, at the anesthetic machine to Check that anesthetic by the inserted reservoir of Anesthetic delivery means is supplied. These Identifier may, for example via a plug contact a the reservoir associated resistor bridge close the anesthetic machine and a corresponding Display press.

When connecting the reservoir to the Withdrawal connection is the corresponding opening in Reservoir by the anesthesia delivery releasing sealing element opens.

Special embodiments of the invention are in the Subclaims.

In order to connect the reservoir to the Anesthetic delivery device safely and reliably to carry out, a guide is provided which a different type of terminal connection excludes.

This is in particularly simple manner realized that the guide for out towards Anesthetic delivery device in slightly pointed Angle tapered rails there. When matched spitzwinkligem tapering of the corresponding base the reservoir is an operational Following the anesthetic dispenser only when proper insertion produced.

The reservoir can for single use be provided modules. However, it is expedient, a filling opening for filling the empty provide reservoir of a refill. At this filling hole is a refill, z. B. an anesthetic bottle, connectable.

The filling opening is preferably located in a Deepening of the reservoir, so that when Filling out of the refill in the area of Well a within the reservoir can form air cushion. This after filling the Reservoir remaining gas volume can Changes in volume of the liquid by thermal accommodate expansion. In addition, the fill opening is in the recess against mechanical damage protected.

Expediently contains the filling hole with a an encoder provided recording, which the complementary part to a corresponding Coding forms to the refill. On in filling direction openable closure member is the Fill opening during filling from the Refill dates and closes it after Completion of the filling.

To monitor the level within the reservoir is used in further development of the Invention, a level indicator, which for example, a to the back of the Reservoir arranged communicating tube consists. Thereby, the filling level of the container in installed state can be easily controlled.

When level indicator moreover also serve other known level indicator, the For example, according to the principle of thermal Conductivity, the path length through a Float or capacitance measurement works. The known level indicator are suitable Fasteners at one in the Anesthetic delivery device located evaluation connected and display unit.

An embodiment of the invention is in the Drawing indicated and it is in more detail below purifies. Show it:

<b>Fig.</b> 1 is a perspective view of the reservoir

<b>Fig.</b> 2 a section through the Vorratsbe containers with attached Refill container.

The in <b>Fig.</b> 1 reservoir shown <b>1</b> instructs its one end face <b>23</b> the anesthetic supply <b>3</b> and a specific for the respective anesthetic ID <b>4</b> on. Next to it is a terminal<b>18</b> For the supply of the electrical signals from the filling level indicator <b>13</b> for not shown anesthesia machine. At the top <b>35</b> is a viewing window <b>24</b> over a breakthrough <b>32</b> and an opening <b>31</b> to the negative pressure Valve <b>25</b> appropriate. The reservoir<b>1 </b>is over the rails as a guide <b>20, 21</b> out.

In which, in <b>Fig.</b> 2 illustrated section through the front of storage container <b>1</b> is the inclusion of <b>7</b> in the groove <b>6</b> arranged, which filling opening the <b>5</b> contains. The on acceptance <b>7</b> is carried out so that the refill container <b>30</b>. for example in the form of an anesthetic bottle, with its thread <b>34</b> into the corresponding recesses of the admission <b>7</b> can be screwed. When screwing the refill container or the Nar kosemittelflasche <b>30</b> abuts the end face of <b>29</b> against the flat gasket <b>26</b>Which by a metal bellows <b>27</b> is maintained. The metal bellows<b>27</b> guarantees secure sealing of the anesthetic bottle against the gasket <b>26</b>Before the tube <b>28</b> by further A Screw the anesthetic bottle <b>30</b> against the force the metal bellows <b>27</b> the ball <b>10</b> a first closure element against the spring <b>11</b> from her seat <b>9</b> the first closure element lifts off the interior of the Vorratsbehäl ters <b>1</b> with the anesthetic bottle <b>30</b> connects. at from taking <b>7</b> unscrewed anesthetic bottle <b>30</b> is the filling opening <b>5</b> against the environment completed. To a confusion-free connection the various anesthetic bottles <b>30</b> to be granted afford owns the recording <b>7</b> one for each Anesthetic specific coding <b>8th</b>, In these engages the Kodierkragen <b>12</b> the bottle <b>30</b> on.

To connect the anesthetic supply <b>3</b> at the ent Speaking withdrawal connection <b>33</b> the not in the figure Anesthetic delivery device shown is a closure member or withdrawal valve <b>19</b> actuated, the operation of the first closure member <b>9, 10</b> is similar.

To display the respective level in Vorratsbe container <b>1</b> is a level indicator <b>13 </b>appropriate. This has two electrodes as level sensors <b>14, 15</b>Which over the Zuleitun gene <b>16, 17</b> to the terminal <b>18</b> are performed. The on conclusion <b>18</b> is via plug contacts <b>116, 117</b> with not Anesthetic delivery device shown connectable.

For filling of the reservoir <b>1</b> is example as the anesthetic bottle <b>30</b> in the recording <b>7</b> screwed and the reservoir <b>1</b> so tilted, that its side surface with the viewing window <b>24</b> after bottom and its side surface with the depression <b>6</b> after directed above. Through the open shutter element <b>9, 10</b> flowing the anesthetic liquid from the anesthetic bottle <b>30</b> into the reservoir <b>1</b>. the air inside the anesthetic bottle <b>30</b> so long to escape, until the level mirror the indentation <b>36</b> has reached. Now the complete filling operation, the reservoir <b>1</b> in its initial position tilted back and the anesthetic bottle <b>30</b> from taking <b>7</b> be unscrewed. Connect to the anesthetic delivery device of Anesthesia device is now the reservoir <b>1</b> about the guide rails <b>20, 21</b> at the dispensing nozzle <b>33</b> connected, wherein the extraction valve <b>19</b> opened and also the connection <b>18</b> is coupled.