Anesthesia system

Abstract

According to the invention, an anesthesia system is provided, wherein the anesthesia system comprises an anesthesia device and an anesthetic dispenser connectable (or connected) to the anesthesia device. The anesthetic dispenser or the anesthesia device comprises a bushing, wherein the bushing is configured to receive a projecting coupling element of the anesthesia device or a projecting coupling element of the anesthetic dispenser in order to provide a fluidic connection between the anesthesia device and the anesthetic dispenser. The bushing is mounted displaceably relative to the anesthetic dispenser or displaceably relative to the anesthesia device by means of a spring arrangement.

Description

[0001] The present invention relates to an anesthesia system.

[0002] Anesthesia systems are used to administer inhalation anesthesia. Administering inhalation anesthesia typically requires providing the patient with a breathing gas enriched with a gaseous anesthetic or anesthetic agent, i.e., anesthetic gas. For this purpose, the anesthesia system includes an anesthesia device that delivers the breathing gas enriched with the gaseous anesthetic agent to the patient via a patient interface. The anesthesia device also includes a device-side interface through which an anesthetic agent dispenser can be connected to the anesthesia device to deliver anesthetic gas.

[0003] It is generally necessary for the connection between the anesthetic dispenser and the anesthesia machine to be gas-tight to prevent anesthetic gas or breathing gas from escaping into the environment. Due to manufacturing tolerances of the individual components in the anesthesia system, it is generally necessary to ensure that the gas-carrying connections, regardless of the tolerances, result in as few leaks as possible.

[0004] The Flow-i anesthesia machine from Maquet Getinge is known to provide axially protruding, radially sealing elastomer diaphragms at an interface on the device side, which can engage with metal cylinders protruding from the interface on the anesthetic dosing device side. The elasticity of the elastomer diaphragm allows for the compensation of component tolerances. Plunger valves are provided on the device side. On the anesthetic dosing device side, only metal sieves are provided to seal the anesthetic dosing device, which cannot prevent the ingress of contaminants.

[0005] The Dräger ZEUS anesthesia machine, in conjunction with the Dräger DIVA anesthetic dosing device, is known to provide an axially protruding pneumatic nozzle at an interface on the device, which is designed for connection to a socket on the anesthetic dosing device. The nozzle is sealed by a radial sealing element between the nozzle and the socket. When the anesthetic dosing device is plugged in, the nozzle opens a plunger valve, which serves to seal the anesthetic dosing device from the environment when not plugged in. The tolerances that occur between the anesthetic dosing device and the anesthesia machine are compensated for by a floating bearing of the pneumatic interfaces in the anesthetic dosing device.The floating bearing is achieved by a sliding bearing of the bushing in the anesthetic dispenser, which allows parallel displacement of the bushing in one plane (i.e., two spatial directions). Tolerances in a direction perpendicular to this plane (i.e., the third spatial direction) are compensated for by a sliding fit of the nozzle in the bushing using an O-ring.

[0006] Mechanical interface designs in the field of anesthesia devices are also known from the VAPOR 2000 / 3000 anesthetic dosing device from Dräger. Component tolerances are compensated for by an axial O-ring on the device side, which surrounds a plug-in connection dome on its outer circumference and can be brought into sealing contact with the anesthetic dosing device. To ensure a seal, the anesthetic dosing device must be locked using a mechanical lever on the dosing device side, which engages one side of the device. This lever must be operated manually. A plunger is located on the device side to fluidically close the plug-in connection dome.

[0007] DE 10 2022 120 585 A1 discloses an anesthetic system with an anesthetic component and with a receptacle into which the anesthetic component can be inserted.

[0008] DE 692 24 823 T2 discloses a container for an anesthetic, which can be connected via a line to an inlet of a sump arranged in an anesthetic vaporizer. The inlet has a cylindrical receptacle and a cylindrical partition.

[0009] DE 41 37 368 A1 discloses a pipe coupling, in particular for servicing refrigerant systems, with a connection adapter and a filling nozzle.

[0010] The present invention is based on the object of providing an anesthesia system that is an alternative to the aforementioned known solutions.

[0011] These and other objects are achieved by the anesthesia system according to the invention. The dependent claims, the description, and the figures provide advantageous embodiments of the invention.

[0012] According to the invention, an anesthesia system is provided, wherein the anesthesia system comprises an anesthesia device and an anesthetic dispenser connectable (or connected) to the anesthesia device. The anesthetic dispenser or the anesthesia device comprises a bushing, wherein the bushing is configured to receive a projecting coupling element of the anesthesia device or a projecting coupling element of the anesthetic dispenser in order to provide a fluidic connection between the anesthesia device and the anesthetic dispenser. The bushing is mounted by means of a spring arrangement with three degrees of freedom displaceable relative to the anesthetic dispenser or with three degrees of freedom displaceable relative to the anesthesia device.

[0013] In this way, the coupling element can be accommodated in a bushing designed for this purpose, which in turn is displaceably mounted, thus enabling tolerance compensation for component tolerances. In other words, the invention provides a bushing that is floatingly mounted by means of a spring arrangement. The spring arrangement provides a floating mounting of the bushing with displaceability in all three spatial directions.

[0014] An anesthetic dispenser is a device for providing anesthetic gas. This can be an anesthetic vaporizer or an anesthetic evaporator. The anesthetic dispenser can, for example, be configured to provide a carrier gas enriched with anesthetic gas to the anesthesia machine via a fluidic interface. The anesthetic dispenser can have an anesthetic chamber for holding liquid anesthetic and a vaporizer chamber. The vaporizer chamber and the anesthetic chamber can be selectively fluidically connected by a suitable means, such as a continuously or discontinuously operating valve, in particular an injection valve. This allows a specific amount of anesthetic to enter the vaporizer chamber for vaporization.The anesthetic chamber can be pressurized to effect or promote the introduction of the anesthetic into the vaporizer chamber. The vaporizer chamber can be heated to vaporize the anesthetic. Optionally, a mixing chamber for mixing the vaporized anesthetic, i.e., the anesthetic gas, with a carrier gas can be arranged downstream of the vaporizer chamber. Mixing of the anesthetic gas with the carrier gas can optionally take place in the vaporizer chamber or in the mixing chamber. The carrier gas can be supplied to the device, for example, via a first device-side fluidic interface. The anesthetic gas (optionally mixed with carrier gas) can be provided to the anesthesia device via a second device-side fluidic interface.

[0015] The anesthetic dispenser can be designed as an electronic anesthetic dispenser.

[0016] The anesthetic dispenser and / or the anesthesia machine may each have a control unit for controlling some or all components of the device. The control unit or each control unit may be configured to receive and process signals from some or all components of the device.

[0017] The anesthetic dispenser can have one or more energy and / or data interfaces provided on the anesthetic dispenser side (doser side) for coupling with one or more corresponding energy and / or data interfaces provided on the anesthesia device side (device side) for exchanging (sending and / or receiving and / or transmitting) energy and / or data. The anesthetic dispenser can have an energy storage device such as a battery and / or an accumulator for (supplementary and / or alternative) supply of energy to the anesthetic dispenser.

[0018] The anesthesia machine can be designed in essentially any way. For example, it can be an anesthesia machine with a closed or semi-closed breathing system (also referred to as a circuit system), in which the majority of the breathing gas does not leave the machine. In such a machine, carbon dioxide exhaled by the patient is absorbed by a suitable device such as soda lime. Fresh gas is added to the exhaled gas when it is returned to the circuit. Such a machine has the advantage that the substances used for anesthesia (general anesthetics) can be used efficiently.

[0019] The control unit of the anesthetic dosing device and / or the control unit of the anesthesia device may be implemented in whole or in part as a hardware circuit, which may, for example, comprise gate arrays, commercially available semiconductors such as logic chips, transistors, or other discrete components. The control unit of the device and / or the control unit of the anesthesia device may also be implemented in programmable hardware components such as field-programmable gate arrays, programmable array logic, programmable logic components, or the like. The control unit of the anesthetic dosing device and / or the control unit of the anesthesia device may also be implemented in software for execution by various types of processors and may, for example, comprise one or more physical or logical modules of computer instructions, which may, for example, be organized as an object, procedure, or function.The control unit of the device and / or the control unit of the anesthesia machine can be designed, for example, as a computer, processor, microprocessor, (field) programmable logic array ((F)PLAs = (Field) Programmable Logic Array), (field) programmable gate array ((F)PGA = (Field) Programmable Gate Array), digital signal processor hardware (DSP hardware; DSP = Digital Signal Processor), application-specific integrated circuit (ASIC = Application Specific Integrated Circuit), and / or field programmable logic array (FPGA = Field Programmable Gate Array).

[0020] A bushing is a hollow, rigid body for slidingly receiving the coupling element.

[0021] The bushing can be designed as a single piece or in multiple pieces. The bushing can optionally have an insertion bevel.

[0022] During normal operation, the socket can be arranged horizontally and designed to receive the coupling element essentially horizontally. Furthermore, during normal operation, the socket can be arranged vertically and designed to receive the coupling element essentially vertically.

[0023] A coupling element is a rigid element for the fluidic connection between the anesthetic dispenser and the anesthesia machine. An example of a coupling element is a nozzle. The coupling element can be movably mounted.

[0024] Preferably, the socket has a through-opening and a first movable closure element, wherein the first movable closure element is configured to assume a first position in which the through-opening is closed, and wherein the first movable closure element is configured to assume a second position in which the through-opening is open.

[0025] In this way, the socket can be closed optionally, e.g. when the anesthesia machine and anesthetic dispenser are not connected to each other, in order to prevent the penetration of contaminants.

[0026] It is preferred to provide a plurality of sockets according to the invention and a plurality of corresponding coupling elements according to the invention.

[0027] The first movable closure element is understood to mean an element for selectively closing the through openings of the socket by changing the position of the element from the second position to the first position relative to the socket.

[0028] The first movable closure element can be designed as a plunger, a tappet, or a piston. The first movable closure element can be spring-loaded.

[0029] Preferably, the first movable closure element has the first position in a non-connected state of the anesthesia device and the anesthetic dispenser.

[0030] In this way, the socket is normally closed, so the first movable closure element must be moved to the second position to open the socket's through-hole. This ensures that the socket's through-hole remains closed when the anesthetic dispenser and anesthesia machine are not connected.

[0031] Preferably, the coupling element has a through-opening and a second movable closure element, wherein the second movable closure element is configured to assume a first position in which the through-opening is closed, and wherein the second movable closure element is configured to assume a second position in which the through-opening is open.

[0032] In this way, the coupling element can be closed optionally, e.g. when the anesthesia machine and anesthetic dispenser are not connected to each other, in order to prevent the penetration of contaminants.

[0033] The second movable closure element is understood to be an element for selectively closing the through openings of the coupling element by changing the position of the element from the second position to the first position relative to the coupling element.

[0034] The second movable closure element can be designed as a plunger, a tappet, or a piston. The second movable closure element can be spring-loaded.

[0035] Preferably, the second movable closure element has the first position in a non-connected state of the anesthesia device and the anesthetic dispenser.

[0036] In this way, the coupling element is normally closed, so that the second movable closure element must be moved to the second position to open the through-opening of the coupling element. This ensures that the through-opening of the coupling element is closed when the anesthetic dispenser and the anesthesia device are not connected.

[0037] Preferably, the anesthesia system is configured such that by connecting the anesthetic dispenser to the anesthesia device, the first movable closure element moves into the second position and the second movable closure element moves into the second position.

[0038] In this way, the connection can provide an open state of the socket and the coupling element, which reduces the handling effort of the anesthesia system and enables a fluidic connection between the anesthetic dispenser and the anesthesia device.

[0039] The anesthesia system preferably comprises an ejection assembly configured to be tensioned when the anesthetic dispenser and the anesthesia device are connected. Furthermore, the anesthesia system preferably comprises a locking assembly configured to lock the anesthetic dispenser and the anesthesia device together in the connected state, counter to the tension of the ejection assembly. The ejection assembly is configured to space the anesthetic dispenser and the anesthesia device apart from one another when the anesthetic dispenser and the anesthesia device are not locked together.

[0040] This ensures that the anesthetic dispenser is ejected from the locking arrangement if the locking mechanism is not achieved when inserting the anesthetic dispenser into the anesthesia machine. This advantageously increases user safety of the anesthesia system, as it is clear to the user that the locking mechanism and thus the correct insertion of the anesthetic dispenser has not occurred. Unsafe intermediate states can also be advantageously avoided.

[0041] An ejection assembly is understood to be an assembly with means for ejecting the anesthetic dispenser. The ejection assembly preferably has one or more springs for this purpose. Springs that act on the first closure element and the second closure element preferably form the ejection assembly.

[0042] The locking arrangement can, for example, be designed as shown and described in the patent application DE 10 2024 122 649 B3.

[0043] The ejection assembly can be provided separately from the bushing and the coupling element or integrated into them. The ejection assembly can be purely mechanical or can include electronic and / or pneumatic and / or hydraulic actuators.

[0044] The anesthesia system may comprise a sensor device configured to detect the reaching of the locked state and / or the reaching of a position of the anesthetic dispenser relative to the anesthesia device that corresponds to the locked state. The sensor device may, for example, be based on an optical, electromagnetic, electrical, and / or mechanical sensor principle.

[0045] Preferably, a sealing means is provided in or on the through-opening of the bushing in order to provide a sealing connection between the through-opening of the bushing and the through-opening of the coupling element.

[0046] In this way, a sealing connection between the socket and the coupling element can be achieved.

[0047] Alternatively or additionally, it is preferred that the coupling element has a sealing means on an outer circumference of the coupling element.

[0048] The or each of the sealing means can be designed, for example, as a sealing ring, such as a radial shaft seal, an axial shaft seal, a V-seal seal or a C-ring seal.

[0049] If the bushing is designed in several parts, it can have at least a first part and a second part between which the sealing means can be accommodated.

[0050] Preferably, the spring arrangement comprises an elastomer membrane.

[0051] In this way, a gas-tight yet resilient connection can be provided for the floating mounting of the bushing in or on the anesthetic dispenser or in or on the anesthesia machine, which enables a particularly simple floating mounting of the bushing with displacement in all three spatial directions. In other words, the combination of bushing and elastomer membrane ensures that the bushing is sealed against the environment and allows the bushing to move to any position in space—within the limits of the elastic properties of the elastomer membrane.

[0052] Preferably, the spring arrangement comprises, alternatively or additionally to the elastomer membrane, an element for providing a predetermined starting position.

[0053] In this way, a predetermined starting position, i.e. a predetermined position, of the socket relative to the anesthetic dispenser or the anesthesia device can be provided, which improves the connection of the socket and the coupling element.

[0054] The element for providing the predetermined initial position of the bushing can be configured, for example, as one or more foam elements, such as one or more foam rings. The one or more foam elements can, for example, be arranged on the circumference of the bushing and at least also support the bushing. It is preferred that the element for providing the predetermined initial position of the bushing be configured elastically.

[0055] These and other features and advantages of the invention will become apparent from the following description of the figures. They show: Fig. 1a shows a first embodiment of an anesthesia system according to the invention in the unconnected state, Fig. 1b shows the first embodiment of the anesthesia system according to the invention in the connected state, Fig. 2a shows a second embodiment of an anesthesia system according to the invention in the unconnected state, Fig. 2b the second embodiment of the anesthesia system according to the invention in the connected state, and Fig. 3 a third embodiment of an anesthesia system according to the invention in the unconnected state.

[0056] According to the invention, an anesthesia system 1000 is provided. Fig. 1a, Fig. 1b shows a first embodiment of an anesthesia system 1000. Fig. 2a, Fig. 2b show a second embodiment of an anesthesia system 1000. Fig. 3 shows a third embodiment of an anesthesia system 1000. If only “the anesthesia system” 1000 is referred to below, all possible embodiments of anesthesia systems 1000 according to the invention, shown or not shown, are equally meant.

[0057] As in Fig. 1a, Fig. 1b and Fig. 2a, Fig. 2b, the anesthesia system 1000 comprises an anesthesia device 100 and an anesthetic dispenser 200 connectable to the anesthesia device 100. The anesthetic dispenser 200 or the anesthesia device 100 has a socket 2, wherein the socket 2 is configured to receive a projecting coupling element 1 of the anesthesia device 100 or a projecting coupling element of the anesthetic dispenser 100 in order to provide a fluidic connection between the anesthesia device 100 and the anesthetic dispenser 200.

[0058] In the illustrated embodiments, the anesthetic agent dispenser 200 has the socket 2 and the anesthesia device 100 has the coupling element 1.

[0059] The bushing 2 is mounted by means of a spring arrangement 3, 5 so as to be displaceable relative to the anesthetic dispenser 100 or displaceable relative to the anesthesia device 200.

[0060] The spring arrangement 3, 5 in the first embodiment according to Fig. 1a, Fig. 1b comprises an elastomer membrane 3 and an element 5 for providing a predetermined initial position of the bushing 2, for example a foam ring 5. However, the spring arrangement 3, 5 can also be designed differently.

[0061] The spring arrangement 3, 5 in the second embodiment according to Fig. 2a, Fig. 2b comprises only an elastomer membrane 3, whereby here, as in the embodiment according to Fig. 1a, Fig. 1b it is possible to additionally provide an element 5 for providing a predetermined initial position of the socket 2.

[0062] Fig. 1a and Fig. 2b each show a non-connected state of the anesthesia device 100 and the anesthetic dispenser 200. Due to manufacturing tolerances present in the example shown, the bushing 2 and the coupling element 1 are not aligned with each other. When the anesthetic dispenser 200 with bushing 2 is inserted into the anesthesia device 100 with the coupling element 1, the bushing 2 and the coupling element 1 engage, causing the bushing 2 to be deflected from its initial position due to the movable mounting in the anesthetic dispenser 200. The bushing 2 and the coupling element 1 can thus be brought into engagement with each other while compensating for the manufacturing tolerances. Fig. 1b and Fig. 2b each show a corresponding connected state of anesthesia device 100 and anesthetic dispenser 200.

[0063] It can be seen that a floating mounting of the bushing 2 in the anesthesia device 100 or in the anesthetic dispenser 200 by means of an elastomer membrane 3 enables the bushing 2 to be displaced in all three spatial directions x, y and z and thus enables tolerance compensation in all three spatial directions x, y and z.

[0064] Connecting the socket 2 and the coupling element 1 can include the following sub-steps. When the coupling element 1 meets the socket 2, an initial rough alignment of the two components to one another can be achieved using an insertion geometry, for example, an insertion bevel, until the coupling element 1 is sealed in the socket 2 using an optional sealing element 4. The elastomer membrane 3 allows movement of the entire socket 2 in the direction of the coupling element 1 (x-direction and y-direction). Due to the bearing by means of the elastomer membrane 3, compensation is also possible in the z-direction. Tolerance compensation in the x-direction (plug-in direction of the connection) can be achieved additionally or alternatively via a correspondingly large overlap of the sealing element 4 and the coupling element 1 in the plugged-in state.

[0065] This type of bearing arrangement makes the interface combination (coupling element 1 with bushing 2) largely independent of other components required for tolerance compensation and also requires minimal installation space. Furthermore, the functional separation between the seal, using the optional sealing element 4, and the tolerance compensation, using the elastomer membrane 3, reduces the potential for leaks. The actual sealing function, using the optional sealing element 4, is limited to a limited installation space.

[0066] Depending on the degree of freedom of the movable bearing, it is possible to compensate for manufacturing tolerances in all spatial directions x, y, z.

[0067] It is possible in all embodiments and in the second embodiment according to Fig. 2a, Fig. 2b shows that the socket 2 can have a through-opening 2a and a first movable closure element 6, wherein the first movable closure element 6 is configured to assume a first position in which the through-opening 2a is closed, and wherein the first movable closure element 6 is configured to assume a second position in which the through-opening 2a is open. In this case, the first movable closure element 6 can have the first position when the anesthesia device 100 and the anesthetic dispenser 200 are not connected.It is further shown that the coupling element 1 can have a through-opening 1a and a second movable closure element 7, wherein the second movable closure element 7 is configured to assume a first position in which the through-opening 1a is closed, and wherein the second movable closure element 7 is configured to assume a second position in which the through-opening 1a is open. In this case, the second movable closure element 7 can have the first position when the anesthesia device 100 and the anesthetic agent dispenser 200 are not connected. It is further shown that the anesthesia system 1000 can be configured such that by connecting the anesthetic agent dispenser 100 to the anesthesia device 200, the first movable closure element 6 moves into the second position and the second movable closure element 7 moves into the second position.

[0068] Fig. 2a shows that, when the anesthetic dispenser 100 and the anesthesia device 200 are not connected, the first movable closure element 6 is in a closing first position and that the second movable closure element 7 is also in a closing first position. In the illustrated embodiment, the first movable closure element 6 is spring-loaded by a first spring 8 to provide the first position. Furthermore, in the illustrated embodiment, the second movable closure element 7 is spring-loaded by a second spring 9 to provide the first position. The first movable closure element 6 is configured to come into contact with the second movable closure element 7 so that the first movable closure element 6 assumes the second position and the second movable closure element 7 assumes the second position.

[0069] Possible in all embodiments but only in Fig. 2a, Fig. 2b shows that the anesthesia system 1000 can have an ejection arrangement 8, 9. The ejection arrangement 8, 9 can be provided by the above-described first spring 8 and the above-described second spring 9, although this is not required. The ejection arrangement 8, 9 is configured to be tensioned upon connection of the anesthetic dispenser 200 and the anesthesia device 100, ie, to be deflected from the rest position. Possible in all embodiments, but only in Fig. 2a, Fig. Figure 2b further illustrates that the anesthesia system 1000 may include a locking arrangement 10 configured to lock the anesthetic dispenser 200 and the anesthesia device 100 together in the connected state, counter to the tension of the ejection arrangement 8, 9. The ejection arrangement 8, 9 is configured to space the anesthetic dispenser 200 and the anesthesia device 100 apart from each other when the anesthetic dispenser 200 and the anesthesia device 100 are not locked together. In other words, the ejection arrangement 8, 9 is tensioned when the anesthetic dispenser 200 is pushed into the anesthesia device 100, so that if the locked state is not reached, the ejection arrangement 8, 9 is released again and pushes the anesthetic dispenser 200 out of the anesthesia device 100 again.

[0070] In known anesthesia systems 1000, the anesthetic dosing device 200 must be actively pushed into and removed from the anesthesia device 100 or its device-side interface by the user. During insertion, it is possible with these anesthesia systems 1000 that the anesthetic dosing device 200 and the anesthesia device 100 are electrically and pneumatically connected and can therefore theoretically be operated, but are not yet in the locked state. As a result, the anesthetic dosing device 200 is pushed out of the anesthesia device 100 during the first pressurization process of the anesthesia system 1000 and can fall out of the anesthesia device 100. This problem is also solved with the ejection arrangement 8, 9 according to the invention, which ensures that the anesthetic dispenser 200 is pushed out of the anesthesia device 100 again as long as the secure locked state has not been reached.

[0071] As shown, the locking arrangement 10 can have a pivotable locking element 10. For this purpose, the locking element 10 can be mounted in the anesthetic dispenser 200, for example, via a joint so that it can pivot relative to the anesthetic dispenser 200. It is possible to preload the locking element 10 using a return element such as a leg spring.

[0072] The anesthetic dispenser 200 can be linearly guided via a rail system when inserted into the anesthesia device 100. For this purpose, the anesthetic dispenser 200 can be equipped with one or more, for example, two, guide rails that can slide on a corresponding counterpart of the anesthesia device 100.

[0073] Depending on the design of the locking arrangement 10, the ejection arrangement 8, 9 may be configured to push the anesthetic dispenser 200 toward the locked state when the secure locking state has been reached and the user no longer exerts force on the anesthetic dispenser 200. This can be achieved if the locking arrangement is designed as shown and described in DE 10 2024 122 649 B3.

[0074] The anesthesia system 1000 preferably has a limitation of the withdrawal path of the anesthetic dispenser 200. For safe withdrawal of the anesthetic dispenser 200, the user must use a second hand. For this purpose, guide elements of the anesthetic dispenser 200 or of the anesthesia device 100 can have a locking geometry that can engage with a corresponding geometry of the anesthesia device 100 or of the anesthetic dispenser 200. If the user wishes to pull the anesthetic dispenser 200 out of the anesthesia device 100, the locking geometry engages the corresponding geometry starting at a predetermined withdrawal path, which provides the limitation of the withdrawal path, and thus blocks withdrawal from this point onward.From this predetermined withdrawal path, the user must use the second hand to grasp the anesthetic dispenser 200, for example by a handle or grip recess provided for this purpose, and to move the anesthetic dispenser 200 in an additional withdrawal direction, which may, for example, be perpendicular to the withdrawal path. The engagement of the locking geometry and the corresponding geometry do not represent an obstacle to moving the anesthetic dispenser 200 in the additional withdrawal direction, i.e., in this withdrawal direction, the locking geometry and the corresponding geometry do not block once the predetermined withdrawal path is reached. For example, after being moved in the horizontal direction, the anesthetic dispenser 200 can be lifted vertically with the aid of the second hand and removed from the anesthesia device 100.In this position, the user can conveniently carry the anesthetic dispenser 200 to its next application location without having to change the handle position for transport.

[0075] The aforementioned withdrawal limit can be implemented mechanically, although this is not required. The withdrawal limit can be implemented additionally or alternatively with the aid of mechatronic and / or fluid-operated components (lifting magnets, pneumatic cylinders, and the like).

[0076] Possible in all embodiments and in Fig. 1a, Fig. 1b and Fig. 2a, Fig. 2b, is that a sealing means 4 can be provided in or on the through-opening 2a of the bushing 2 in order to provide a sealing connection between the through-opening 2a of the bushing 2 and the through-opening 1a of the coupling element 1.

[0077] Fig. 3 shows a third embodiment of an anesthesia system 1000 according to the invention.

[0078] The anesthesia system 1000 after Fig. 3 comprises an anesthetic dispenser 200 for providing anesthetic gas A. The anesthetic dispenser 200 can be accommodated in or on a device-side interface 110 of an anesthesia device 100 by means of a dispenser-side interface 210. The dispenser-side interface 210 can have the above-described socket 2 or the above-described coupling element 1. The device-side interface 110 can complementarily have the above-described coupling element 1 or the above-described socket 2.

[0079] The anesthesia device 100 can further comprise a control unit 120 and a device-side data interface 130, as well as a device housing 150. The control unit 120 can be signal-connected to the device-side interface 110 and to the device-side data interface 130. A carrier gas V can be provided for the anesthetic dispenser 200 by means of the device-side interface 110, and the anesthetic gas A, optionally mixed with the carrier gas V, can be obtained from the anesthetic dispenser 200. A data connection to a corresponding optional dispenser-side data interface 260 can optionally be provided via the device-side data interface 130. The anesthesia device 100 can comprise further components and functions.

[0080] The anesthetic dispenser 200 can further comprise a control unit 250, the device-side data interface 260, a vaporizer chamber 280, an anesthetic chamber 281 for receiving anesthetic N, a heater 282, and a dispenser housing 290. The control unit 250 can be signal-connected to the aforementioned components. The anesthetic dispenser 200 can receive the carrier gas V via the dispenser-side interface 210. The carrier gas V can optionally be used to pressurize the anesthetic chamber 281 by fluidly connecting it to the anesthetic chamber 281. The vaporizer chamber 280 can receive liquid anesthetic N from the anesthetic chamber 281 via a fluid connection with the anesthetic chamber 281 and vaporize or evaporate it there by means of an optional heater 282.Optionally, the anesthetic gas A thus obtained can be mixed with carrier gas V, for example in a mixer chamber (not shown) arranged downstream of the evaporator chamber 280. The anesthetic gas A or a mixture of anesthetic gas A and carrier gas V can be provided to the anesthesia device 100 via the dosing-side interface 210.

[0081] By means of a fluidic connection between the socket 2 and the coupling element 1, the anesthetic gas A can flow from the anesthetic agent dispenser 200 to the anesthesia device 100 and / or the carrier gas V can flow from the anesthesia device 100 to the anesthetic agent dispenser 200.

[0082] In a preferred embodiment of the invention, the anesthetic agent dispenser 200 comprises a gas-conducting interface with a previously described bushing 2, which provides a sealing element 4, e.g. designed as a V-seal, for sealing the coupling element 1, e.g. designed as a grommet, of the anesthesia device 1. The bushing 2 can, for example, have two elements that can be joined to one another, between which the sealing element 4 is clamped. The element located at the front in the insertion direction of the coupling element 1 can serve as a sliding guide element, which, when the two interface sides meet, guides the coupling element 1 in the direction of the sealing element 4 for low-friction guidance. In this example, tolerance compensation is achieved via a previously described elastomer membrane 3, which is joined to the bushing 2, for example, clamped in or on it.The elastomer membrane 3 enables, for example, a tolerance compensation of ± 1 mm per spatial direction. An additional foam ring 5 as described above can be provided to ensure that the socket 2 is in its nominal position when not plugged in (for example, so that all components of the dosing-side interface are concentrically aligned with one another). To protect the socket 2 and the coupling element 1 from the ingress of substances, the above-described first closure element 6, for example designed as a plunger 6, and the above-described second closure element 7, for example designed as a plunger 7, can be provided to selectively close the socket 2 and the coupling element 1 (e.g., dust-tight and / or liquid-repellent). The first closure element 6 can be pressed axially against the sealing element 4 by a first spring 8 to provide the closed state.Both the preload for the first spring 8 and the securing of the elastomer membrane 3 can be provided on the bushing 2 via a cover that is screwed onto the bushing 2. On the anesthesia device 100 side, the second closure element 7 can be pressed axially against a contact surface of the coupling element 1 via a second spring 9 to provide the closed state. The preload of the second spring 9 can be provided by screwing the coupling element 1 into an interface plate of the anesthesia device 100, where a contact surface is provided. The bushing 2 can be attached to an interface plate of the anesthetic dispenser 200 via a collar. The collar can serve as a counterbearing for the foam ring 5 and as a fixation for the elastomer membrane 3. If both sides are inserted into one another, the springs 8, 9 of both plungers are tensioned until the locking position of the anesthetic dispenser 200 is reached.When the anesthetic dispenser 200 is released, the tension ensures that it is safely ejected from the anesthesia machine 100.

[0083] All features mentioned herein may be combined with each other as desired, provided this is not contradictory or involves alternatives. List of reference symbols 1 coupling element 1a Passage opening 2 socket 2a Passage opening 3 Elastomer membrane 4 Sealant 5 foam ring 6 first movable closure element 7 second movable closure element 8 first spring 9 second spring 10 locking arrangement, locking element 100 anesthesia machines 110 device-side interface 120 control unit 130 device-side data interface 150 device housings 200 anesthetic dispensers 210 Doser-side interface 250 control unit 260 device-side data interface 280 evaporator chamber 281 Anesthetic Chamber 282 Heating 290 Dosing housing 1000 anesthesia system A anesthetic gas N anesthetic V Carrier gas x,y,z spatial direction

Claims

[1] Anesthesia system (1000), comprising: - an anaesthetic machine (100), and - an anesthetic dispenser (200) connectable to the anesthesia machine (100), wherein the anesthetic dispenser (200) or the anesthesia device (100) has a socket (2), wherein the socket (2) is adapted to receive a projecting coupling element (1) of the anaesthetic device (100) or a projecting coupling element of the anaesthetic dispenser (100) in order to provide a fluidic connection between the anaesthetic device (100) and the anaesthetic dispenser (200), wherein the bushing (2) is mounted by means of a spring arrangement (3, 5) with three degrees of freedom displaceable relative to the anesthetic dispenser (100) or with three degrees of freedom displaceable relative to the anesthesia device (200). [2] Anesthesia system (1000) according to claim 1, wherein the bushing (2) has a through-opening (2a) and a first movable closure element (6), wherein the first movable closure element (6) is arranged to assume a first position in which the through opening (2a) is closed, and wherein the first movable closure element (6) is arranged to assume a second position in which the through opening (2a) is open. [3] Anesthesia system (1000) according to claim 2, wherein the first movable closure element (6) has the first position in a non-connected state of the anesthesia device (100) and the anesthetic dispenser (200). [4] Anesthesia system (1000) according to one of the preceding claims, wherein the coupling element (1) has a through opening (1a) and a second movable closure element (7), wherein the second movable closure element (7) is arranged to assume a first position in which the through opening (1a) is closed, and wherein the second movable closure element (7) is arranged to assume a second position in which the through opening (1a) is open. [5] Anesthesia system (1000) according to claim 4, wherein the second movable closure element (7) has the first position in a non-connected state of the anesthesia device (100) and the anesthetic dispenser (200). [6] Anesthesia system (1000) according to claim 3 and 5, wherein the anesthesia system (1000) is arranged such that by connecting the anesthetic dispenser (100) to the anesthesia device (200), the first movable closure element (6) moves into the second position and the second movable closure element (7) moves into the second position. [7] Anesthesia system (1000) according to claim 3 and 5 or according to claim 6, comprising an ejection arrangement (8, 9) which is arranged to be tensioned when connecting the anesthetic dispenser (200) and the anesthesia device (100), and comprising a locking arrangement (10) which is designed to lock the anesthetic dispenser (200) and the anesthesia device (100) together in the connected state against the tension of the ejection arrangement (8, 9), wherein the ejection arrangement (8, 9) is arranged to space the anesthetic dispenser (200) and the anesthesia device (100) apart from one another when the anesthetic dispenser (200) and the anesthesia device (100) are not locked together. [8] Anesthesia system (1000) according to one of the preceding claims, wherein a sealing means (4) is provided in or on the through-opening (2a) of the socket (2) in order to provide a sealing connection between the through-opening (2a) of the socket (2) and the through-opening (1a) of the coupling element (1). [9] Anesthesia system (1000) according to one of the preceding claims, wherein the spring arrangement (3, 5) comprises an elastomer membrane (3). [10] Anesthesia system (1000) according to any one of the preceding claims, wherein the spring arrangement (3, 5) comprises an element (5) for providing a predetermined initial position of the socket (2).

Images