CN113117194A

CN113117194A - Anesthesia machine

Info

Publication number: CN113117194A
Application number: CN201911399476.6A
Authority: CN
Inventors: 胡敏; 杨战孝; 罗建成; 陈培涛
Original assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Current assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2021-07-16
Anticipated expiration: 2039-12-30
Also published as: CN113117194B

Abstract

The embodiment of the application provides an anesthesia machine, includes: the device comprises a shell, a standby flowmeter, a sealing door, a magnetic suction device and a controller; the shell is provided with an accommodating cavity, and the accommodating cavity is of a hollow structure with one end provided with an opening communicated with the outside; the standby flowmeter comprises a main body and an operating part, the standby flowmeter is installed in the accommodating cavity, and the operating part faces the opening; the closing door is pivotally connected with the shell; the magnetic attraction device comprises an electromagnet and a permanent magnet matched with the electromagnet; one of the electromagnet and the permanent magnet is arranged on the closing door, and the other one is arranged in the accommodating cavity; the controller is connected with the electromagnet to selectively control the electrification and the outage of the electromagnet, and when the electromagnet is in an electrified state, one end, close to the permanent magnet, of the electromagnet generates a repulsive force which enables the closed door to be opened. The anesthesia machine of the embodiment of the application can avoid the standby flow meter from being operated by mistake, can automatically open the sealing door when abnormal conditions such as failure of the main flow meter and the like occur, and can remind an operator to carry out corresponding operation in time.

Description

Anesthesia machine

Technical Field

The application relates to the technical field of medical equipment, in particular to an anesthesia machine.

Background

The standby flow meter is a standby flow control system of the anesthesia machine, and can be started when the main flow meter fails or can be directly opened manually in the case that the main flow meter does not fail but needs to be used.

In the related art, the knob of the back-up flow meter is usually exposed on the outer surface of the anesthesia machine, so that the knob of the back-up flow meter may be touched by a user to cause the back-up flow meter to be operated by mistake in the case that the back-up flow meter is not needed to be used.

Disclosure of Invention

In view of this, the embodiments of the present application are expected to provide an anesthesia machine which can not only prevent the standby flow meter from being operated by mistake, but also remind an operator to operate the standby flow meter in time when the standby flow meter needs to be used.

To achieve the above object, an embodiment of the present application provides an anesthesia machine, including:

the shell is provided with an accommodating cavity, and the accommodating cavity is of a hollow structure with one end provided with an opening communicated with the outside;

a backup flowmeter including a main body and an operating portion that controls a flow rate output of the backup flowmeter, the backup flowmeter being mounted in the accommodating chamber, the operating portion facing the opening;

a closing door pivotally connected with the housing to open or close the accommodating chamber;

the magnetic attraction device comprises an electromagnet and a permanent magnet matched with the electromagnet; one of the electromagnet and the permanent magnet is arranged on the closing door, the other one of the electromagnet and the permanent magnet is arranged in the accommodating cavity, and the electromagnet corresponds to the permanent magnet in position;

and the controller is connected with the electromagnet to selectively control the electrification and the electrification of the electromagnet, so that when the electromagnet is in an electrified state, the magnetism generated by the magnetic pole at one end of the electromagnet close to the permanent magnet is the same as the magnetism generated by the magnetic pole at one end of the permanent magnet close to the electromagnet, and therefore repulsive force for opening the closed door is generated between the electromagnet and the permanent magnet.

The utility model provides an anesthesia machine, set up the sealing door through the outside at reserve flowmeter, simultaneously, set up the magnetism device of using with the sealing door cooperation, and utilize the circular telegram and the outage of controller selectivity control electro-magnet, therefore, both can avoid reserve flowmeter by the maloperation, can be when abnormal conditions such as main flowmeter inefficacy appear again, supply power to the electro-magnet through controller control power supply, make electro-magnet and permanent magnet mutually support and will seal the automatic opening of door, and the time warning operator operates reserve flowmeter.

Drawings

Fig. 1 is a schematic structural view of an anesthesia machine according to an embodiment of the present application, wherein a closing door is in a closed state;

FIG. 2 is a schematic view of the anesthesia machine of FIG. 1 with the closure door in an open position;

FIG. 3 is a schematic view of the closure door of the anesthesia machine of FIG. 1 in a mated relationship with the housing, wherein the closure door is in a closed position;

FIG. 4 is a schematic view of the anesthesia machine of FIG. 3 showing the closure door in an open position mated to the housing from another perspective;

FIG. 5 is a schematic view of the housing of the anesthesia machine of FIG. 3 from a further perspective, with the back-up flow meter omitted;

FIG. 6 is a front view of the closure door of the anesthesia machine of FIG. 3 in mated relationship with the housing;

FIG. 7 is a cross-sectional view A-A of FIG. 6;

fig. 8 is a schematic view of the operating portion of an anesthesia machine according to another embodiment of the present application in relation to a housing, in which a closing door is omitted;

FIG. 9 is a cross-sectional view B-B of FIG. 8, showing the closure door;

FIG. 10 is a schematic view of the operating portion of an anesthesia machine in cooperation with a housing according to yet another embodiment of the present application, with a closure door omitted;

fig. 11 is a cross-sectional view C-C of fig. 10 showing the closure door.

Description of the reference numerals

An anesthesia machine 1000; a housing 10; the accommodation chamber 10 a; a standby flow meter 20; a main body 21; an operation section 22; a closing door 30; a door panel 31; a mounting plate 32; a shield 33; a magnetic attracting means 40; an electromagnet 41; a permanent magnet 42; a first spacer 50; the first spacing space 50 a; a door position detection device 60; a detection element 61; an induction magnet 62; an infrared emitter 63; a second spacer 70; the second spacing spaces 70 a; a third spacer 80; third spaced-apart spaces 80 a; a through hole 80 b; a door latch 90; a host 100; a display 200; a work table 300; a storage cabinet 400; a breathing circuit 500; a base 600; a roller 610; a main flow meter knob 700; the glass tube display area 800.

Detailed Description

It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.

In the description of the present application, "lengthwise" is based on the orientation or positional relationship shown in fig. 4, it being understood that these orientation terms are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.

Referring to fig. 1 and 2 together, there is provided a schematic structural view of an anesthesia machine 1000 according to an embodiment of the present invention, in which the sealing door 30 in fig. 1 is in a closed state, and in which the sealing door 30 in fig. 2 is in an open state. The anesthesia machine 1000 comprises a main machine 100, a display 200, a workbench 300, a storage cabinet 400, a breathing circuit 500 and a base 600, wherein the workbench 300 is arranged on the main machine 100, the display 200 is connected with the main machine 100, the storage cabinet 400 is arranged below the workbench 300, one part of the breathing circuit 500 is structurally arranged on one side of the storage cabinet 400, the other part of the breathing circuit 500 is structurally arranged in the main machine 100, and the base 600 with rollers 610 is arranged below the storage cabinet 400. Both the back-up flow meter 20 and the main flow meter are devices on the anesthesia machine 1000 for regulating the magnitude of the fluid flow. The main flow meter can be arranged below the workbench 300 or at any position on the anesthesia machine 1000, the two main flow meter knobs 700 arranged at the bottom of the display 200 in fig. 1 and 2 are the knobs of the main flow meter, the relevant parameters of the main flow meter are displayed on the display 200, the standby flow meter 20 is arranged on the main machine 100 and is positioned below the display 200, and the relevant parameters of the standby flow meter 20 are displayed on the glass tube display area 800 beside the standby flow meter 20. Typically, the user will primarily use the main flow meter and may activate the back-up flow meter 20 when the main flow meter fails, or may manually turn on the back-up flow meter 20 directly in the event that the main flow meter does not fail but needs to use the back-up flow meter 20. However, in the related art, the knob of the standby flowmeter is usually exposed on the outer surface of the anesthesia machine, so that the knob of the standby flowmeter may be touched by the user to cause the standby flowmeter to be operated by mistake in the case that the standby flowmeter is not required to be used, and therefore, the embodiment of the present application arranges the standby flowmeter 20 in the accommodating cavity 10a of the anesthesia machine 1000, and arranges the closing door 30 at the opening of the accommodating cavity 10a to prevent the user from touching the operating part 22 of the standby flowmeter 20 by mistake.

An embodiment of the present application provides an anesthesia machine, please refer to fig. 1 and 2, fig. 3 and 4, fig. 6 and 7, wherein fig. 1 and 2 are schematic structural views of an anesthesia machine 1000, the sealing door 30 in fig. 1 is in a closed state, the sealing door 30 in fig. 2 is in an open state, fig. 3 and 4 are schematic structural views of the sealing door 30 of the anesthesia machine 1000 shown in fig. 1 and the housing 10, the sealing door 30 in fig. 3 is in a closed state, the sealing door 30 in fig. 4 is in an open state, the structures of the operating part 22 of the standby flow meter 20, the induction magnet 62, and the like located in the sealing door 30 are shown in the figures, fig. 6 is a front view of the sealing door 30 in the closed state, and fig. 7 is a sectional view taken from a to a in fig. 6. The anesthesia machine 1000 comprises: housing 10, back-up flow meter 20, closure door 30, magnetic attraction means 40 and a controller (not shown). The housing 10 has a housing chamber 10a, and the housing chamber 10a has a hollow structure having an opening at one end communicating with the outside. The backup flowmeter 20 includes a main body 21 and an operation portion 22 that controls the flow output of the backup flowmeter 20, the backup flowmeter 20 being mounted in the housing chamber 10a with the operation portion 22 being open. The closing door 30 is pivotably connected to the case 10 to open or close the accommodation chamber 10 a. The magnetic attraction device 40 includes an electromagnet 41 and a permanent magnet 42 cooperating with the electromagnet 41. One of the electromagnet 41 and the permanent magnet 42 is arranged on the closing door 30, and the other is arranged in the housing chamber 10a, the electromagnet 41 corresponding to the position of the permanent magnet 42. A controller is connected to the electromagnet 41 to selectively control energization and de-energization of the electromagnet 41 such that when the electromagnet 41 is in an energized state, the magnetic poles of the end of the electromagnet 41 near the permanent magnet 42 generate the same magnetic polarity as the magnetic poles of the end of the permanent magnet 42 near the electromagnet 41, thereby generating a repulsive force between the electromagnet 41 and the permanent magnet 42 that causes the closing door 30 to open.

Specifically, referring to fig. 1 and fig. 2, the operation portion 22 of the standby flowmeter 20 refers to a component that an operator can perform corresponding operations such as outputting a flow rate of the standby flowmeter 20 through the operation portion 22, and the operation portion 22 of the present embodiment is an operation knob, and the operator can perform corresponding operations on the standby flowmeter 20 by rotating the operation knob. In other embodiments, the operation portion 22 may be various mechanical keys, touch keys, or the like, and is not limited herein. The operation unit 22 of the present embodiment is mainly used to perform operations such as flow rate adjustment on the backup flowmeter 20, and is not provided with an on/off key, but may be provided with an on/off key in other embodiments. The present embodiment shows two operation portions 22, and in fact, the number of the operation portions 22 can be adjusted as needed, and is not limited herein.

Further, referring to fig. 4 and fig. 5, fig. 5 is a schematic structural diagram of a further view angle of the housing of the anesthesia machine 1000 shown in fig. 3, that is, fig. 5 shows a back side of the housing 10. The anesthesia machine 1000 of the present embodiment further includes a third spacer 80 disposed in the accommodation chamber 10a, and the third spacer 80 has a through hole 80b formed therein. The third partition 80 partitions a third space 80a in the receiving chamber 10a, and the opening is located at one side of the third space 80 a. The main body 21 is disposed on the side of the third spacer 80 away from the opening, and the operating portion 22 protrudes into the third partitioned space 80a through the through hole 80 b. That is, the main body 21 of the backup flowmeter 20 is hidden behind the third spacer 80, and when the closing door 30 is opened, the operator can see only the operation part 22 and cannot see the main body 21, whereby the main body 21 can be protected, and the arrangement inside the closing door 30 can be made more beautiful. The first spacer 50 of the present embodiment is integrally formed with the housing 10, and in other embodiments, the first spacer 50 may be fixedly connected with the housing 10, or the first spacer 50 may be spaced apart from the housing 10, as long as the first spacer 50 can separate a first space 50a isolated from the closing door 30 in the accommodating chamber 10 a. In other embodiments, the third spacer 80 may not be provided.

In the present embodiment, the electromagnet 41 is provided in the housing chamber 10a and the permanent magnet 42 is provided in the closing door 30, but in other embodiments, the electromagnet 41 may be provided in the closing door 30 and the permanent magnet 42 may be provided in the housing chamber 10 a. Those skilled in the art will appreciate that the controller may employ various existing chips having signal inputs and signal outputs as the control means, and may be controlled by an electrical signal control method or a software control method.

The anesthesia machine 1000 is further provided with a main flow meter (not shown), when the main flow meter is in an operating state, the standby flow meter 20 is in a non-operating state, at the moment, the electromagnet is in a power-off state, the electromagnet 41 does not generate magnetism, but is attracted and adsorbed together with the permanent magnet 42 through magnetic attraction matching, so that the closing door 30 can be kept in a closed state, and further misoperation of the standby flow meter 20 by an operator can be prevented. When the main flowmeter fails due to a failure or the like, the controller controls the power supply to energize the electromagnet 41, the magnetic pole of the end of the electromagnet 41 close to the permanent magnet 42 is made to have the same magnetic polarity as the magnetic pole of the end of the permanent magnet 42 close to the electromagnet 41, and the electromagnet 41 and the permanent magnet 42 repel each other, so that the closing door 30 is automatically opened by the repulsive force to prompt the operator to operate the backup flowmeter 20 accordingly through the operation unit 22. That is, the controller of the present embodiment may control the electromagnet 41 to be in the energized state when the main meter is out of service, and control the electromagnet 41 to be in the de-energized state when the main meter is not out of service. With continued reference to fig. 5 and 7, the anesthesia machine 1000 of the present embodiment further includes a first partition 50 disposed in the accommodating chamber 10a, wherein the first partition 50 partitions a first partition space 50a isolated from the closing door 30 in the accommodating chamber 10 a. The electromagnet 41 is disposed in the first spaced space 50a, and the permanent magnet 42 is disposed on the closing door 30. When the door 30 is in a closed state, the electromagnet 41 and the permanent magnet 42 are magnetically attracted and matched, and the door 30 is attached to the first spacer 50.

The first spacer 50 is provided to facilitate fixing the electromagnet 41 in the first space 50a partitioned by the first spacer 50, protect the electromagnet 41 and make the structure inside the door 30 more beautiful in the second aspect when the door 30 is in the open state, and make the door 30 fit to the first spacer 50 in the third aspect when the door 30 is in the closed state, that is, the first spacer 50 can limit the door 30, so that the door 30 in the closed state can be kept flat. The first spacer 50 of the present embodiment is integrally formed with the housing 10, and in other embodiments, the first spacer 50 may be fixedly connected with the housing 10, or the first spacer 50 may be spaced apart from the housing 10, as long as the first spacer 50 can separate a first space 50a isolated from the closing door 30 in the accommodating chamber 10 a. In other embodiments, the first spacer 50 may not be provided.

Further, with reference to fig. 4, the number of the first spacers 50, the number of the electromagnets 41 and the number of the permanent magnets 42 are two. The two permanent magnets 42 are oppositely disposed at both ends of the closing door 30 in the length direction of the closing door 30. The two first spacers 50 are disposed at positions corresponding to the two permanent magnets 42, respectively, and one electromagnet 41 is disposed in one first space 50a partitioned by each first spacer 50. The arrangement mode has the advantage that the leveling of the closing door 30 can be more favorably kept, so that the condition that the corners of the closing door 30 in the closing state are tilted or collapsed to influence the overall appearance of the anesthesia machine 1000 is prevented. The two permanent magnets 42 of the present embodiment are disposed on a side of the closing door 30 away from the side where the closing door is rotatably connected to the housing 10, and it is understood that the positions of the two permanent magnets 42 can be selected according to the requirement, as long as the two permanent magnets are conveniently matched with the electromagnet 41 to open the closing door 30, and the invention is not limited thereto.

With continued reference to fig. 4 and 7, the anesthesia machine 1000 of the present embodiment further comprises a door position detecting device 60, wherein the door position detecting device 60 at least comprises a detecting element 61 disposed in the accommodating chamber 10 a. The detection element 61 is electrically connected to the controller to detect the position state of the closing door 30. Wherein the position state comprises an open state and a closed state.

Specifically, the phrase "the door position detecting device 60 includes at least one detecting element 61" means that different detecting manners are available according to the type of the selected door position detecting device 60, for example, some door position detecting devices 60 only need one detecting element 61 to detect the opening state or the closing state of the closing door 30, and some door position detecting devices 60 need one detecting element 61 to cooperate with other detecting elements 61 or a trigger mechanism to detect the opening state or the closing state of the closing door 30, and particularly, which door position detecting devices 60 can be used, which will be described in detail later.

The door position detecting device 60 detects the position state of the closing door 30 mainly by signal transmission, and the signal transmitted to the controller may be a sensing signal, a trigger signal, or the like, depending on the type of the detecting element 61. Depending on the position of the detection element 61 and/or the detection manner, the detection element 61 may transmit a corresponding signal to the controller when the closing door 30 is in the open state, or may transmit a corresponding signal to the controller when the closing door 30 is in the closed state, however, the detection element 61 may transmit a signal to the controller only in one state, and if the detection element 61 transmits a signal to the controller when the closing door 30 is in the closed state, the detection element 61 may not transmit a signal to the controller when the closing door 30 is in the open state, and similarly, if the detection element 61 transmits a signal to the controller when the closing door 30 is in the open state, the detection element 61 may not transmit a signal to the controller when the closing door 30 is in the closed state, and thus, when the closing door 30 is switched from the closed state to the open state, or when the state is switched from the open state to the closed state, the controller can determine that the position state of the closing door 30 is changed, and then can execute corresponding operation according to the position state of the closing door 30. Further, in the present embodiment, when the controller determines that the closing door 30 is in the open state after the electromagnet 41 and the permanent magnet 42 are automatically opened by cooperating with each other, the controller automatically switches the standby flow meter 20 to the operating state, that is, the standby flow meter 20 of the present embodiment can be automatically switched to the operating state when the closing door 30 is opened, without the need for an operator to manually open a switch of the standby flow meter 20, and thus, the use by the operator can be facilitated. Furthermore, when the controller determines that the closing door 30 is in the open state, the controller may further send a sound and/or light prompt signal to the operator, so as to remind the operator that the standby flow meter 20 has been switched to the working state, or remind the operator to close the standby flow meter 20 and the closing door 30 in time after the closing door 30 is opened by mistake due to misoperation or the like. In other embodiments, the controller may not have a function of automatically switching the standby flow meter 20 to the operating state, for example, the operating unit 22 may include an on/off switch, and when the controller determines that the closing door 30 is in the open state, the controller may only send a prompt signal such as a sound and/or a light to the operator to prompt the operator to turn on the on/off switch of the standby flow meter 20 in time.

In addition, in some cases, the operator may need to use the backup flow meter 20 even if the primary flow meter is not disabled, and in such a scenario, the controller will not conduct the electrical circuit between the power source and the electromagnet 41, and the power source will not energize the electromagnet 41, and thus the closure door 30 will not automatically open. However, the operator may manually pull the closing door 30 open, and the door position detecting device 60 may be used to cause the controller to automatically switch the standby flow meter 20 to the operating state after determining that the closing door 30 is opened, and similarly, the controller may send a warning signal such as a sound and/or a light to the operator. Further, in order to facilitate the operator to manually open the closing door 30, the anesthesia machine 1000 may further include a door latch 90 provided on the closing door 30, the door latch 90 being located on a side of the closing door 30 away from the accommodating chamber 10 a.

It will be appreciated that the presence of the magnetic attraction means 40 does not require that further detection of the opening of the closure door 30 by the door position detection means 60 be necessary, for example, in one embodiment the controller may switch the back-up flow meter 20 to the active state upon detection of a failure of the main flow meter but not the electrical circuit between the power supply and the electromagnet 41, or may switch the back-up flow meter 20 to the active state while controlling the electrical circuit between the power supply and the electromagnet 41 to be conductive. For example, in another embodiment, when the operation unit 22 includes an on/off switch and the controller does not have a function of automatically switching the standby flow meter 20 to the operating state, the on/off switch may be manually turned on by the operator after the closing door 30 is opened, and both embodiments may be provided with only the magnetic attraction device 40 and no door position detection device 60.

Referring to fig. 7, the door position detecting device 60 of the present embodiment is a magnetic induction detecting device, the detecting element 61 is a hall sensor, and the magnetic induction detecting device further includes an induction magnet 62 disposed on the enclosure. The closure door 30 is in the closed position with the sensing magnet 62 facing the hall sensor, which transmits a sensing signal to the controller. The sensing magnet 62 is offset from the hall sensor in the open position of the closure door 30.

That is to say, when the closing door 30 is in the closed state, the sensing magnet 62 faces the hall sensor, and the hall sensor can detect the sensing magnet 62, so the hall sensor can transmit the sensing signal to the controller, and when the closing door 30 is in the open state, the sensing magnet 62 rotates along with the closing door 30, the sensing magnet 62 deviates from the hall sensor, the hall sensor cannot detect the sensing magnet 62, the hall sensor cannot transmit the sensing signal to the controller, and when the controller cannot receive the sensing signal transmitted by the hall sensor, it can be determined that the closing door 30 is in the open state at this time, and then corresponding operation can be executed.

Further, with continued reference to fig. 4 and 7, the closing door 30 of the present embodiment includes a door panel 31 and a mounting plate 32, and the mounting plate 32 has a curved structure. One side of the mounting plate 32 is connected with the door panel 31, one side of the mounting plate 32 far away from the door panel 31 is rotatably connected with the casing 10, and the induction magnet 62 is arranged on the mounting plate 32. In the closed state of the closing door 30, the mounting plate 32 is located in the accommodating chamber 10a and protrudes in a direction in which the hall sensor is located so that the sensing magnet 62 faces the hall sensor. By providing the mounting plate 32, the sensing magnet 62 can be brought as close as possible to the hall sensor when the closing door 30 is in the closed state, whereby the detection accuracy of the detection element 61 can be improved. In other embodiments, the mounting plate 32 may not be provided, and the hall sensor may be provided as close to the opening as possible, so long as the hall sensor detects the sensing magnet 62.

With continued reference to fig. 4 and 7, the anesthesia machine 1000 further comprises a second spacer 70 disposed in the receiving chamber 10a, the second spacer 70 separating a second compartment 70a in the receiving chamber 10a that is isolated from the closure door 30. The hall sensor is disposed in the second spacing space 70 a. Similar to the purpose of providing the first spacer 50, the second spacer 70 may separate the second space 70a to facilitate fixing the hall sensor, and the hall sensor may not be exposed when the closing door 30 is in the open state, thereby protecting the hall sensor and making the arrangement of the structure inside the closing door 30 more beautiful.

Further, two sets of magnetic induction detection devices are provided in the present embodiment, that is, the number of the hall sensors and the induction magnets 62 is two. Two induction magnets 62 are spaced apart from each other on the mounting plate 32. further, the two induction magnets 62 of this embodiment are spaced apart from each other on the mounting plate 32 along the length of the closing door 30. Two hall sensors are all arranged in the same second interval space 70a, the two hall sensors correspond to the two permanent magnets 42 one by one, and the detection precision of the detection element 61 can be further improved by arranging two sets of magnetic induction detection devices. It is understood that the number and the arrangement position of the magnetic induction detection devices can be adjusted according to the needs, and are not limited herein.

In other embodiments, the positional relationship between the hall sensor and the induction magnet 62 may be adjusted by adjusting the installation positions of the hall sensor and the induction magnet 62 so that: the closure door 30 is in the open position with the sensing magnet 62 facing the hall sensor, which transmits a sensing signal to the controller. The sensing magnet 62 is offset from the hall sensor in the closed position of the closure door 30. In this scenario, when the controller receives the sensing signal transmitted by the hall sensor, it can be determined that the closing door 30 is in the open state, and then the corresponding operation can be performed.

Referring to fig. 8 and 9, fig. 8 and 9 are schematic diagrams illustrating a matching relationship between the operating portion 22 and the housing 10 of an anesthesia apparatus 1000 according to another embodiment, and fig. 9 is a sectional view taken along line B-B of fig. 8. In another embodiment, the door position detecting device 60 is an infrared detecting device, the detecting element 61 is an infrared receiver, the infrared detecting device further comprises an infrared emitter 63, and the closing door 30 comprises a door panel 31 and a shutter 33 connected to the door panel 31. The infrared receiver and the infrared transmitter 63 are oppositely disposed in the accommodation chamber 10 a. Specifically, the infrared emitter 63 and the electromagnet 41 are both disposed on the same side of the operation portion 22 in the present embodiment, and in other embodiments, the infrared emitter 63 may be disposed at other positions. When the closing door 30 is in an open state, the infrared transmitter 63 transmits infrared light to the infrared receiver, and the infrared receiver transmits a sensing signal to the controller. When the door 30 is closed, the shield is positioned between the infrared emitter 63 and the infrared receiver, the shield cuts off the infrared transmission between the infrared emitter 63 and the infrared receiver, and the infrared receiver cannot transmit a sensing signal to the controller. When the controller receives the sensing signal transmitted by the infrared receiver, it can be determined that the closing door 30 is in the open state, and corresponding operations can be performed. That is, in this scenario, the door position detecting device 60 includes at least one transmitter and one receiver, wherein the detecting element 61 is a transmitter. Similar with infrared detection device, door position detection device 60 can also be opto-coupler detection device, and opto-coupler detection device includes the opto-coupler transmitter and the opto-coupler receiver of relative setting, namely, can replace the infra-red transmitter 63 of this embodiment for the opto-coupler transmitter, replace infra-red receiver for the opto-coupler receiver, and its detection mode is similar with infrared detection device, no longer has repeated here.

Referring to fig. 10 and 11, fig. 10 and 11 are schematic diagrams illustrating a matching relationship between an operating portion 22 of an anesthesia machine 1000 and a housing 10 according to another embodiment, and fig. 11 is a cross-sectional view taken along line C-C of fig. 10. In a further embodiment, the detection element 61 is a microswitch arranged in the housing chamber 10 a. When the closing door 30 is in a closed state, the closing door 30 triggers the micro switch, the micro switch transmits a trigger signal to the controller, when the closing door 30 is in an open state, the closing door 30 does not trigger the micro switch, and the micro switch does not transmit the trigger signal to the controller. When the controller does not receive the trigger signal transmitted by the microswitch, it can be determined that the closing door 30 is in the open state at the moment, and corresponding operation can be performed. The micro switch of the present embodiment is triggered by directly contacting the closing door 30, that is, in the present embodiment, the door position detecting device 60 can detect the position state of the closing door 30 only by using the detecting element 61 of the micro switch to cooperate with the controller. Similar to the microswitch, the door position detecting device 60 may also be an ultrasonic detecting device, a pressure detecting device, or the like, that is, the microswitch of this embodiment may be replaced by an ultrasonic sensor or a pressure sensor, and the detection mode is similar to that of the microswitch, and is not described herein again. In other embodiments, the closure door 30 may also be configured to activate the micro-switch by engaging a triggering mechanism, such as a push rod, spring, rocker, etc.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An anesthesia machine, comprising:

and the controller is connected with the electromagnet to selectively control the electrification and the outage of the electromagnet, so that when the electromagnet is in an electrified state, the magnetism generated by the magnetic pole at one end, close to the permanent magnet, of the electromagnet is the same as the magnetism generated by the magnetic pole at one end, close to the electromagnet, of the permanent magnet, and therefore repulsive force enabling the closed door to be opened is generated between the electromagnet and the permanent magnet.

2. The anesthesia machine of claim 1, further comprising a main flow meter, wherein the controller controls the electromagnet to be in an energized state when the main flow meter fails and in a de-energized state when the main flow meter does not fail.

3. The anesthesia machine of claim 1 or 2, further comprising a first partition disposed in said receiving chamber, said first partition dividing a first separation space in said receiving chamber isolated from said closure door;

the electromagnet is arranged in the first interval space, and the permanent magnet is arranged on the closed door;

the closed door is in a closed state, the electromagnet is in magnetic attraction fit with the permanent magnet, and the closed door is attached to the first spacing piece.

4. The anesthesia machine of claim 3, wherein the number of the first spacer, the electromagnet, and the permanent magnet is two;

the two permanent magnets are oppositely arranged at two ends of the closed door along the length direction of the closed door;

the arrangement positions of the two first spacing pieces correspond to the two permanent magnets respectively, and one electromagnet is correspondingly arranged in one first spacing space separated by each first spacing piece.

5. The anesthesia machine of any of claims 1-4, wherein the controller is further configured to switch the back-up flow meter to an operational state.

6. The anesthesia machine of any of claims 1-5, further comprising a door position detection device comprising at least one detection element disposed in the receiving chamber; the detection element is electrically connected with the controller to detect the position state of the closing door; wherein the position states include an open state and a closed state.

7. The anesthesia machine of claim 6, wherein the controller switches the back-up flow meter to an operational state when the controller determines that the closure door is in an open state; and/or the presence of a gas in the gas,

when the controller determines that the closed door is in the open state, the controller emits a sound and/or light prompt signal.

8. The anesthesia machine of claim 6 or 7, wherein the door position detection device is a magnetic induction detection device, the detection element is a Hall sensor, the magnetic induction detection device further comprises an induction magnet disposed on the closure;

when the closed door is in a closed state, the induction magnet faces the Hall sensor, and the Hall sensor transmits an induction signal to the controller;

when the closed door is in an open state, the induction magnet deviates from the Hall sensor.

9. The anesthesia machine of claim 8, wherein the closure door comprises a door panel and a mounting plate, the mounting plate being of curvilinear construction;

one side of the mounting plate is connected with the door plate, one side of the mounting plate, which is far away from the door plate, is rotatably connected with the shell, and the induction magnet is arranged on the mounting plate;

when the closed door is in a closed state, the mounting plate is located in the accommodating cavity and protrudes towards the direction where the Hall sensor is located, so that the induction magnet faces the Hall sensor.

10. The anesthesia machine of claim 8 or 9, further comprising a second partition disposed in said receiving chamber, said second partition dividing a second compartment in said receiving chamber isolated from said closure door; the hall sensor is disposed in the second spaced space.

11. The anesthesia machine of claim 10, wherein the number of the hall sensors and the induction magnets is two;

the two induction magnets are arranged on the mounting plate at intervals;

the two Hall sensors are arranged in the second interval space and correspond to the two permanent magnets one by one.

12. The anesthesia machine of any of claims 6 to 11, wherein the door position detection device is an infrared detection device, the detection element is an infrared receiver, the infrared detection device further comprises an infrared transmitter, the closing door comprises a door panel and a shutter connected to the door panel;

the infrared receiver and the infrared transmitter are oppositely arranged in the accommodating cavity;

when the closed door is in an open state, the infrared transmitter transmits infrared light to the infrared receiver, and the infrared receiver transmits a sensing signal to the controller;

the closed door is in a closed state, the shielding piece is located between the infrared transmitter and the infrared receiver, and the shielding piece cuts off infrared transmission between the infrared transmitter and the infrared receiver.

13. Anesthesia machine according to any of claims 6 to 11, characterized in that said detection element is a microswitch arranged in said housing chamber;

when the closed door is in a closed state, the closed door triggers the microswitch, and the microswitch transmits a trigger signal to the controller.

14. The anesthesia machine of any of claims 6-11, wherein the door position detection device is one of an opto-coupler detection device, an ultrasonic detection device and a pressure detection device.

15. The anesthesia machine of any of claims 1-14, further comprising a third spacer disposed in the containment chamber, the third spacer having a through hole formed therein;

the third partition divides a third space in the accommodating chamber, and the opening is positioned at one side of the third space; the main body is arranged on one side, far away from the opening, of the third spacing piece, and the manual operation part extends into the third spacing space through the through hole.

16. The anesthesia machine of any one of claims 1-15, further comprising a door catch hand disposed on the closure door on a side of the closure door remote from the containment chamber.