Anesthesia system

Abstract

An anesthesia system is provided. The anesthesia system comprises a device for providing anesthetic gas, which is configured to be received in a device-side interface of an anesthesia device. The anesthesia system further comprises a locking device configured to lock the device in the device-side interface. The anesthesia system further comprises a movable operating element configured to release the locking by actuating the operating element. The anesthesia system further comprises a blocking device configured to block actuation of the operating element. The anesthesia system further comprises an emergency release device configured to release the locking by actuating the emergency release device (in particular while the operating element is blocked).The actuation required to operate the control element is different from the actuation required to operate the emergency release device. The locking device has a translationally movable slider, which provides locking in a first position and releases the locking in a second position.

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 (anesthetic gas). For this purpose, the anesthesia system includes an anesthesia device that delivers the breathing gas enriched with a gaseous anesthetic to the patient via a patient interface. The anesthesia device may include a device-side interface through which a device for delivering anesthetic gas can be connected to the anesthesia device.

[0003] Devices for providing anesthetic gas are known.

[0004] One type of such a device is known from EP 3 034 123 A1. This type of device relates to a predominantly passively operating device, also referred to as an anesthetic vaporizer. The device typically comprises an anesthetic chamber for holding liquid anesthetic. During operation, a gas phase containing vaporized anesthetic, i.e., anesthetic gas, is formed in the anesthetic chamber above the liquid phase of the anesthetic. This gas can be fed to the anesthesia machine and thus made available. Typically, such anesthetic vaporizers are temperature-sensitive due to the low boiling points of the anesthetic agents used, so they are equipped with a correspondingly large thermal mass and / or cooling elements and / or heating elements.

[0005] Another type of device for providing anesthetic gas is known from DE 10 2022 132 976 A1. The device described therein is an active anesthetic vaporizer. The device has an anesthetic chamber for holding liquid anesthetic. During operation, the anesthetic flows to a heatable vaporization chamber of an anesthetic vaporizer, in which the anesthetic is vaporized and retained and delivered as anesthetic gas.

[0006] It is typically desirable for the anesthetic gas delivery device to be initially locked when inserted into the device-side interface and then blocked from removal in this locked state. However, it is also necessary that the device be removable despite the blockage in the event of an emergency.

[0007] In this respect, an anesthetic cassette is known from DE 10 2022 120 585 A1 as an example of a device for providing anesthetic gas with a release lever. The release lever is rotatably mounted about an axis and has a groove for locking engagement with a retaining element on the anesthesia device. The release lever can thus be pivoted between a locking position and an unlocking position. If the user pulls on a removal handle for regular removal of the anesthetic cassette, the release lever is raised above the axis by coupling the removal handle with the release lever, thus unlocking it, and the anesthetic unit can be removed. For this to happen, the removal locking lever must be in a release position, since in a locking position the removal locking lever and a latch block each other. For regular removal, the removal lock lever must first be released.The removal locking lever is normally operated by an actuator. However, if the actuator for regular removal fails, i.e., in an emergency, an "emergency release" is possible. To do this, the user can lift the (emergency) release lever directly without pulling the removal handle.

[0008] The disadvantage of this design is the complex assembly design. Furthermore, tests have shown that the achievable durability of such an assembly is limited for practical purposes.

[0009] US 2020 238 043 A1 also discloses a device for delivering anesthetic gas with a type of emergency release. It describes how a bolt that is blocked by current is de-energized in an emergency and thus transferred to a normally open position. A locking hook can be released from a groove into which the hook engages by a user actuating a handle against a spring via a pivoting lever, allowing the device to be removed from the anesthesia machine. This system is not bistable, meaning a de-energized locked state is not possible. For emergency removal, the entire anesthesia machine must be de-energized.

[0010] DE 10 2022 132 976 A1 discloses a ventilation system comprising an anesthesia machine and two gas mixture generators. The two gas mixture generators are detachably connected to the anesthesia machine. Each gas mixture generator is supplied with a carrier gas comprising oxygen by the anesthesia machine and generates an anesthetic gas mixture comprising the carrier gas and at least one anesthetic.

[0011] A door latch is known from US 4,193,619 A. EP 1 217 117 A1 discloses a device for locking and releasing a door lock of an electrical device. GB 1 317 258 A discloses a mechanism for emergency opening or ejecting a vehicle hood.

[0012] The present invention is based on the object of providing an anesthesia system that is an alternative to the aforementioned known solutions.

[0013] These and other tasks are solved by the anesthesia system according to the invention.

[0014] The anesthesia system according to the invention comprises a device for providing anesthetic gas, which is configured to be received in a device-side interface of an anesthesia device. The anesthesia system further comprises a locking device configured to lock the device in the device-side interface. The anesthesia system further comprises a movable operating element configured to release the locking by actuating the operating element. The anesthesia system further comprises a blocking device configured to block actuation of the operating element. The anesthesia system further comprises an emergency release device configured to release the locking by actuating the emergency release device (in particular while the operating element is blocked).The actuation required to operate the control element is different from the actuation required to operate the emergency release device. The locking device has a translationally movable slider, which provides locking in a first position and releases the locking in a second position.

[0015] By distinguishing the actuation required to operate the control element from the actuation required to operate the emergency release device, it can be ensured that the actuation required for emergency withdrawal and the actuation required for regular withdrawal are different from each other. This can improve the functional safety of the anesthesia system.

[0016] Since the locking device has the translationally movable slide, which provides the locking in the first position and which causes the release of the locking in the second position, it is possible to dispense with the provision of a lever with a joint which causes the locking, which enables an advantageous extension of the service life of the locking device.

[0017] The device for providing anesthetic gas can, for example, be configured to provide a carrier gas enriched with anesthetic gas for the anesthesia device via a fluidic interface.

[0018] The device can comprise 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.In the vaporization chamber or mixing chamber, the anesthetic gas can optionally be mixed with the carrier gas. The carrier gas can be supplied to the device, for example, via a first device-side fluidic interface. The anesthetic gas (optionally mixed with the carrier gas) can be supplied to the anesthesia device via a second device-side fluidic interface.

[0019] Alternatively, the device may not have a vaporization chamber for vaporizing anesthetic, but may be designed to evaporate the anesthetic.

[0020] The device may have a control unit for controlling some or all components of the device. The control unit may be configured to receive and process signals from some or all components of the device. The device may have one or more device-side energy and / or data interfaces for coupling with one or more corresponding device-side energy and / or data interfaces for exchanging (sending and / or receiving and / or conducting) energy and / or data. The device may have an energy storage device such as a battery and / or an accumulator for supplying the device with energy (supplementally, as needed, and / or alternatively).

[0021] 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, and fresh gas is added to the exhaled gas when it is returned to the circuit. This method has the advantage that the substances used for anesthesia (general anesthetics) can be used efficiently.

[0022] In addition to or as an alternative to the control unit of the device, the anesthesia device may have a control unit for controlling some or all components of the anesthesia device and / or the device. The control unit may be configured to receive and process signals from some or all components of the device.

[0023] The control unit of the device and / or the control unit of the anesthesia machine 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 machine 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 device and / or the control unit of the anesthesia machine 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).

[0024] The movable control element can be designed, for example, as a button, a projection or a handle.

[0025] Preferably, the emergency release device is configured to move the slider from the first position to the second position by actuating the emergency release device.

[0026] This represents a particularly advantageous design for the coupling of the emergency release device and the slide.

[0027] Preferably, the emergency release device is designed as an operating element acting on the slide.

[0028] This represents a particularly advantageous design of the emergency release device.

[0029] The control element can act directly or indirectly on the slide. The control element can be designed, for example, as a button or a handle. The control element can be configured, for example, as part of the slide.

[0030] Preferably, the locking device further comprises a pretensioning unit which pretensions the slider in the direction of the first position.

[0031] In this way, the provision of the locking mechanism by inserting the device into the device-side interface can be made easier.

[0032] A preload unit is a unit for preloading the slide toward the first position. This can be, for example, an active component, such as an actuator, or a passive component, such as a spring-loaded component. A spring-loaded component can be designed, for example, as a metal spring or a rubber spring. Possible designs of metal springs include torsion springs and disc springs. Another example of a passive component is the provision of a preferred position using gravity.

[0033] Furthermore, according to the invention, the locking device has a pivotable locking element which, in the first position of the slide, provides a locking in a corresponding recess of the device-side interface or in a corresponding projection of the device-side interface.

[0034] The locking element can, for example, be designed as a nose (protruding component) that can engage in a recess of the device-side interface for positive engagement and locking. In an alternative example, the locking element can be designed as a recess that can be brought into positive engagement with a nose of the device-side interface for locking.

[0035] Preferably, the locking element is normally open.

[0036] A normally open locking element is understood to be a locking element that is in a non-latched state without moving the slide from the second position to the first position. This can be achieved, for example, by providing a leg spring acting on the locking element, which preloads or resets the locking element to the open position.

[0037] Alternatively, it is preferred that the device-side interface has the pivotable locking element described above and that the corresponding projection or the corresponding recess is provided in the device for providing anesthetic gas.

[0038] Preferably, the blocking device is designed as a bistable linear drive, which blocks the operating element in a first stable position and releases the operating element in a second stable position.

[0039] A bistable linear actuator has only two stable states, thus avoiding indeterminate intermediate states. This can improve the functional safety of the anesthesia system.

[0040] One example of a bistable linear drive design is to provide two magnets, e.g., permanent magnets, each of which creates a stable end position. By applying current to the linear drive, an electromagnetic field can be generated, which can move an actuator of the linear drive between the end positions.

[0041] Another example of the design of a bistable linear actuator is a mechanism with two dead centers.

[0042] The linear drive can, for example, be designed as an electromechanical linear drive, such as a linear motor.

[0043] Preferably, both the operating element and the emergency release device act on the slide.

[0044] The operating element and / or the emergency release device can act directly or indirectly on the slide.

[0045] This represents a particularly advantageous design of the invention.

[0046] Preferably, the operating element engages in a recess (of the slide) extending in the longitudinal direction of the slide in such a way that an actuation of the operating element causes engagement with the recess and displacement of the slide from the first position to the second position, wherein the recess provides free movement of the slide relative to the operating element in the blocked state of the operating element upon actuation of the emergency release device.

[0047] The recess in the slide can be designed, for example, as a longitudinal hole or as a stepped linear groove. Other designs, such as a curved groove for guiding the operating element, are possible.

[0048] This represents a particularly advantageous design of the invention.

[0049] As an alternative to engaging in a recess, the operating element and the slider can also be coupled via a spring element.

[0050] It is preferred that the operating element has an operating protection to prevent accidental operation, such as a flap with an upstream elastomer membrane.

[0051] Preferably, the device for providing anesthetic gas comprises the locking device, the movable operating element, the blocking device and optionally also the emergency release device.

[0052] This allows several of the components required to provide both regular and emergency release to be integrated into the device, reducing complexity on the anesthesia machine side. Furthermore, it allows for easy removal of the device with a single hand movement.

[0053] Alternatively, it is preferred that the anesthesia device comprises the locking device, the movable operating element, the blocking device and optionally also the emergency release device.

[0054] According to the invention, an anesthesia system comprising the anesthesia device is further provided.

[0055] These and other features and advantages of the invention will become apparent from the following description of the figures. These show: Fig. 1a a schematic view of a first embodiment of an anesthesia system according to the invention in the separated state, Fig. 1b a schematic view of the first embodiment of an anesthesia system according to the invention according to Fig. 1a in the assembled state, Fig. 2 a schematic view of a second embodiment of an anesthesia system according to the invention in the separated state, Fig. 3a a schematic view of an embodiment of a device according to the invention for providing anesthetic gas before insertion into the device-side interface, Fig. 3b a schematic view of the embodiment of the device according to the invention for providing anesthetic gas during locking in the device-side interface, Fig. 3c a schematic view of the embodiment of the device according to the invention for providing anesthetic gas during blocking in the device-side interface, and Fig. 3d a schematic view of the embodiment of the device according to the invention for providing anesthetic gas during an emergency release.

[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. 2 shows a second embodiment of an anesthesia system 1000. If only “the anesthesia system” 1000 is mentioned, 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, Fig. 2, the anesthesia system 1000 comprises a device 100 for providing anesthetic gas A, which is configured to be received in a device-side interface 210 of an anesthesia device 200. Fig. 1a shows a state of the anesthesia system 1000 according to the first embodiment, in which the device 100 is not inserted into the device-side interface 210, while Fig. 1b shows a state of the anesthesia system 1000 according to the first embodiment, in which the device 100 is inserted into the device-side interface 210. Fig. 2 shows a state of the anesthesia system 1000 according to the second embodiment, in which the device 100 is inserted into the device-side interface 210.

[0058] The anesthesia system 1000 of each exemplary embodiment comprises a locking device 110 configured to lock the device 100 in the device-side interface 210, a movable operating element 120 configured to release the locking by actuating the operating element 120, a blocking device 130 configured to block actuation of the operating element 120, and an emergency release device 140 configured to release the locking by actuating the emergency release device 140, while the blocking device 130 blocks the operating device 120. An actuation required to actuate the operating element 120 is different from an actuation required to actuate the emergency release device 140.The locking device 110 has a translationally movable slide 111, which provides the locking in a first position and which releases the locking in a second position.

[0059] In the first embodiment according to Fig. 1a, Fig. 1b, the device 100 has the locking device 110. In the second embodiment according to Fig. 2, the anesthesia device 200 has the locking device 110.

[0060] The anesthesia device 200 of each exemplary embodiment can have a control unit 220, a device-side data interface 230, a first device-side fluidic interface 241, a second device-side fluidic interface 242, and a device housing 250 for accommodating the aforementioned components. The control unit 220 can be signal-connected to the device-side interface 210, to the device-side data interface 230, to the first device-side fluidic interface 241, and to the second device-side fluidic interface 242. A carrier gas V for the device 100 can be provided by means of the first device-side fluidic interface 241. The anesthesia gas A, optionally mixed with the carrier gas V, can be obtained by means of the second device-side fluidic interface 242.A data connection to a corresponding optional device-side data interface 160 can optionally be provided via the device-side data interface 230. The anesthesia device 200 can have additional components and functions.

[0061] The device 100 of each embodiment can have a control unit 150, the device-side data interface 160, a first device-side fluidic interface 171, a second device-side fluidic interface 172, an evaporator chamber 180, an anesthetic chamber 181 for receiving anesthetic N, and a device housing 190 for receiving the aforementioned components. The control unit 150 can be in signal communication with the aforementioned components. The device 100 can receive the carrier gas V via the first device-side fluidic interface 171. The carrier gas V can optionally be used to pressurize the anesthetic chamber 181 by fluidic communication with the anesthetic chamber 181.The evaporator chamber 180 can receive liquid anesthetic N from the anesthetic chamber 181 via a fluidic connection to the anesthetic chamber 181 and evaporate it. 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 180. The anesthetic gas A or a mixture of anesthetic gas A and carrier gas V can be provided to the anesthesia device 200 via the second device-side fluidic interface 172.

[0062] A schematic view of an embodiment of a device 100 according to the invention for providing anesthetic gas A is shown in Fig. 3a-3d. In this example, the device 100 includes the locking device 110, the movable control element 120, the blocking device 130, and the emergency release device 140, although this is not required. Alternatively, the locking device 110, the movable control element 120, the blocking device 130, and the emergency release device 140 can also be arranged in the anesthesia device 200 or partially in the device 100 and partially in the anesthesia device 200.

[0063] The device 100 can have an operating element 120, which can be designed, for example, as a handle, as shown. It is preferred that the operating element 120 be offset from the device housing 190 so that it can be easily grasped. The operating element 120 can, for example, comprise a first region 120a, a second region 120b, and a third region 120c and can be pivotably mounted relative to the device 100 by means of a joint 121. The operating element 120 can, for example, engage in a recess 111a extending in the longitudinal direction L of the slide 111 by means of the third region 120b.

[0064] The slider 111 can be mounted in the device 100 by means of a linear guide, such as a plain bearing, for translational movement relative to the device 100. The slider 111 can thus be axially movable, for example, along its longitudinal direction L. It is shown that the locking device 110 can further comprise a pretensioning unit 112, for example, a spring, which can be connected to the slider 111, for example, by means of a slider shoulder 111b, and to the device 100.

[0065] The emergency release device 140 can be provided on the slide 111, for example, configured as a handle separate from the operating unit 120. The emergency release device 140 can, for example, be integrally connected to the slide 111.

[0066] The locking device 110 further comprises, as shown, a pivotable locking element 113. For this purpose, the locking element 113 can be pivotably mounted relative to the device 100, for example, via a joint 114. It is possible to preload or reset the locking element 113 by means of a return element 115, such as a leg spring 115.

[0067] The following describes the function of the anesthesia system 100 in connection with Fig. 3a - 3d described.

[0068] Fig. Figure 3a shows the device 100 according to the invention before insertion into the device-side interface 210. The slide 111 is in the second, i.e., open, position. The pretensioning unit 112 pretensions the slide 111 toward the first, i.e., locked position. The slide 111 rests against the open locking element 113 such that the locking element 113 remains in the open position. The operating element 120 is open, and the device 100 is not locked.

[0069] Fig. 3b shows the device 100 during locking in the device-side interface 210. By inserting the device 100 into the device-side interface 210, a contact surface 113c of the pivotable locking element 113 comes into contact with the device-side interface 210. This pivots the locking element 113, causing an engagement segment 113c of the locking element 113 to engage with a recess 211 of the device-side interface 210. The slider 111 is guided due to the pretension of the pretensioning unit 112 and engages in an undercut 113b of the locking element 113. This locks the locking element 113 and thus the device 100 in the engaged position. Due to the longitudinal displacement of the slide 111, the operating element 120 can also be carried along and thus pivoted by engaging in the recess 111a.

[0070] Fig. 3c shows the device 100 during blocking in the device-side interface 210. As soon as the device 100 is locked, which can be detected by a sensor, the blocking device 130 can be caused to block the operating element 120. This can be done by appropriately controlling the blocking device 130 by the control unit 150 and / or control unit 220. A sensor for detecting the locking can, for example, be a contact sensor that can detect the insertion of the device 100 into the device-side interface 210. Such a contact sensor can, for example, be designed as an electronic short-circuit bridge or as a Hall sensor. The blocking device 130 moves the blocking element 133 by means of the axis 132 in the direction of the operating element 120 in such a way that opening of the operating element 120 is prevented. As a result, the device 100 is in a locked and blocked state.

[0071] As long as the anesthesia system 1000 is functioning as intended, the blocking device 130 can be triggered, e.g., by the control unit 150 and / or control unit 220, upon a user request to remove the device 100 from the device-side interface 210, to end the blocking by opening the blocking element 133. The operating element 120 is thus released and can be actuated by the user. Due to the described engagement of the operating element 120 and the recess 111a, the slide 111 is displaced from the first position to the second position in such a case, and as a result, the locking element 113 is unlocked, which, due to the return element 115, returns to the open position (cf. Fig. 3a) swings back. In this state, the device 100 is unlocked, ie, the locking mechanism is released and the device 100 can be removed.

[0072] The blocking device 130 can be designed as a bistable linear drive 131, which blocks the operating element 120 in a first stable position and releases the operating element 120 in a second stable position.

[0073] If the anesthesia system 1000 does not function as intended and, for example, the blocking device 130 remains undesirably in the blocked state, a way must still be provided to safely remove the device 100 from the device-side interface 210. The emergency release device 140 serves this purpose. Fig.3d shows the device 100 during a corresponding emergency release. To do so, the user can actuate the emergency release device 140, which, as shown, can be configured to move the slide 111 from the first position to the second position by actuating the emergency release device 140. The emergency release device 140 can, as further shown, be configured as an operating element 141 acting on the slide 111. In the illustrated embodiment, both the operating element 120 and the emergency release device 140 act on the slide 111.

[0074] It can be seen that the operating element 120 can engage the recess 111a in such a way that, when the operating element 120 is in the locked state, the recess 111a provides free movement of the slide 111 relative to the operating element 120 upon actuation of the emergency release device 140. By actuating the emergency release device 140, it is thus possible to move the slide 111 from the first position to the second position and to cause a corresponding release of the locking element 113. Thus, the locking of the device 100 can be released even in an emergency, and the device 100 can be removed from the device-side interface 210 while the locking is active.

[0075] All features disclosed herein may be combined with each other in any way, unless this affects alternatives or is contradictory. List of reference symbols 100 Device for providing anesthetic gas 110 Locking device 111 slider 111a Recess of the slider 111b Slider shoulder 112 Preload unit 113 locking element 113a Intervention segment 113b Undercut 113c contact surface 114 joint 115 Return element, leg spring 120 movable control element, control element 120a first area of ​​the control element 120b second area of ​​the control element 120c third area of ​​the control element 121 joint 130 Blocking device 131 Linear actuator 132 Axis 133 Blocking element 140 Emergency release device 141 Control element of the emergency release device 150 control unit 160 device-side data interface 171 first device-side fluidic interface 172 second device-side fluidic interface 180 evaporator chamber 181 Anesthetic Chamber 190 fixture housing 200 anesthesia machines 210 device-side interface 211 Recess 220 control unit 230 device-side data interface 241 first device-side fluidic interface 242 second device-side fluidic interface 250 device housings 1000 anesthesia system A anesthetic gas V Carrier gas L Longitudinal direction of the slider N Anesthetic

Claims

[1] Anesthesia system (1000), comprising: - a device (100) for providing anesthetic gas (A), which is designed to be received in a device-side interface (210) of an anesthesia device (200), - a locking device (110) which is designed to lock the device (100) in the device-side interface (210), - a movable operating element (120) which is designed to release the locking device by actuating the operating element (120), - a blocking device (130) which is designed to block an actuation of the operating element (120), and - an emergency release device (140) which is designed to release the locking device by actuating the emergency release device (140), characterized by , that an actuation action required to actuate the operating element (120) is different from an actuation action required to actuate the emergency release device (140), and the locking device (110) comprises: - a translationally movable slider (111) which provides the locking in a first position and which releases the locking in a second position, and - a pivotable locking element (113) which, in the first position of the slider (111), provides a locking in a corresponding recess (211) of the device-side interface (210) or in a corresponding projection of the device-side interface (210). [2] Anesthesia system (1000) according to claim 1, wherein the emergency release device (140) is configured to move the slider (111) from the first position to the second position by actuating the emergency release device (140). [3] Anesthesia system (1000) according to claim 2, wherein the emergency release device (140) is designed as an operating element (141) acting on the slide (111). [4] Anesthesia system (1000) according to any one of the preceding claims, wherein the locking device (110) further comprises: - a preloading unit (112) which preloads the slider (111) towards the first position. [5] Anesthesia system (1000) according to any one of the preceding claims, wherein the locking element (113) is normally open. [6] Anesthesia system (1000) according to one of the preceding claims, wherein the blocking device (130) is designed as a bistable linear drive (131) which blocks the operating element (120) in a first stable position and releases the operating element (120) in a second stable position. [7] Anesthesia system (1000) according to one of the preceding claims, wherein both the operating element (120) and the emergency release device (140) act on the slide (111). [8] Anesthesia system (1000) according to one of the preceding claims, wherein the operating element (120) engages in a recess (111a) extending in the longitudinal direction (L) of the slide (111) such that actuation of the operating element (120) causes engagement with the recess (111a) and displacement of the slide (111) from the first position to the second position, and wherein the recess (111a) provides free movement of the slide (111) relative to the operating element (120) in the blocked state of the operating element (120) upon actuation of the emergency release device (140). [9] Anesthesia system (1000) according to one of the preceding claims, wherein the device (100) for providing anesthetic gas (A) comprises the locking device (110), the movable operating element (120), the blocking device (130) and optionally further the emergency release device (140). [10] Anesthesia system (1000) according to any one of the preceding claims, further comprising the anesthesia device (200).

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