CN111084925B

CN111084925B - Anesthesia machine

Info

Publication number: CN111084925B
Application number: CN201911404119.4A
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: 2023-02-17
Anticipated expiration: 2039-12-30
Also published as: CN111084925A

Abstract

The embodiment of the application provides an anesthesia machine, includes: the device comprises a host, a gas path assembly, a fluid conveying pipeline module and a positioning assembly. The host comprises a host shell with a containing cavity and an opening and a module fixing piece arranged in the containing cavity; the module fixing piece is provided with an installation channel communicated with the outside through an opening; the air channel assembly comprises a first air channel interface and a second air channel interface; the fluid conveying pipeline module comprises a third air passage interface and a fourth air passage interface; the fluid conveying pipeline module has a first state in the installation channel, and in the first state, the third air passage interface is connected with the first air passage interface, and the fourth air passage interface is connected with the second air passage interface; at least part of the positioning assembly is arranged on the host machine to position the fluid conveying pipeline module in the first state. The anesthesia machine of the embodiment of the application can prevent the gas leakage caused by the fact that the fluid conveying pipeline module is not installed in place.

Description

Anesthesia machine

Technical Field

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

Background

An anesthesia machine is one of the most common devices in an operating room, and most anesthesia machines are provided with a fluid conveying pipeline module which is usually arranged in a main machine, and due to the requirement of cleaning and disinfection, a user needs to take the fluid conveying pipeline module out of the main machine frequently and then re-install the fluid conveying pipeline module into the main machine after the cleaning and disinfection are finished.

However, when the user reinstalls the fluid delivery pipe module, it is difficult to determine whether the fluid delivery pipe module is installed in place, and therefore, during the use of the anesthesia machine, gas leakage may occur due to the improper installation of the fluid delivery pipe module, which may affect the performance of the anesthesia machine.

Disclosure of Invention

In view of the above, embodiments of the present application are intended to provide an anesthesia machine capable of positioning an installation position of a fluid delivery conduit module in a main machine.

In order to achieve the above object, an anesthesia apparatus according to an embodiment of the present application includes:

the host comprises a host shell with a containing cavity and an opening, and a module fixing piece arranged in the containing cavity; the module fixing piece is provided with an installation channel communicated with the accommodating cavity, and the installation channel is communicated with the outside through the opening;

the gas path assembly comprises a first gas path interface and a second gas path interface, and the first gas path interface and the second gas path interface are arranged in the accommodating cavity;

a fluid delivery conduit module comprising a third air passage interface and a fourth air passage interface; the fluid conveying pipeline module is placed into the installation channel through the opening or taken out of the installation channel; the fluid conveying pipeline module has a first state in the installation channel, the fluid conveying pipeline module is in the first state, the third air channel interface is connected with the first air channel interface, and the fourth air channel interface is connected with the second air channel interface;

and at least part of the positioning assembly is arranged on the host machine to position the fluid conveying pipeline module in the first state.

The anesthesia machine of the embodiment of the application can judge whether the fluid conveying pipeline module is installed in place or not by arranging the positioning assembly after the fluid conveying pipeline module is placed into the installation channel by a user, and therefore the situation that the performance of equipment is influenced due to the fact that the fluid conveying pipeline module is not installed in place to cause gas leakage can be prevented.

Drawings

Fig. 1 is a partial structural schematic view of a main unit 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 partial schematic structural view of the main body of the closure shown in FIG. 1 in an open state;

FIG. 3 is a schematic structural view of a fluid delivery conduit module that cooperates with a portion of the structure of the mainframe shown in FIG. 1;

FIG. 4 is a schematic diagram of a portion of the internal structure of the mainframe of FIG. 1, with a fluid delivery conduit module shown;

FIG. 5 is a schematic view illustrating a connection relationship between a main body of the module fixing member and the fixing frame shown in FIG. 4;

FIG. 6 is a schematic view of the fluid transport pipe module of FIG. 3 prior to installation in place;

FIG. 7 is an enlarged view of a portion of FIG. 6 at A;

FIG. 8 is a schematic view of the fluid transport pipe module of FIG. 3 in place;

FIG. 9 is an enlarged view of a portion of FIG. 8 at B;

FIG. 10 is an enlarged view of a portion of FIG. 8 at C;

FIG. 11 is a schematic view of another first positioning structure and a second positioning structure;

FIG. 12 is a schematic view of a matching relationship between a first positioning structure and a second positioning structure;

FIG. 13 is a schematic view of another alternative in-position detection device for detecting a fluid conveying pipe module;

FIG. 14 is a schematic view of yet another in-position detection device for detecting a fluid conveying pipe module;

FIG. 15 is a schematic diagram of a ventilation system of the anesthesia machine of FIG. 1;

FIG. 16 is a schematic illustration of an anesthesia machine according to an embodiment of the present application, wherein the closure door is in a closed position;

fig. 17 is a schematic view of the anesthesia machine of fig. 16 with the closure door open and the fluid delivery conduit module removed.

Description of the reference numerals

A fluid delivery conduit module 10; a housing 11; an inner cavity 11a; a grip portion 11b; a shielding portion 11c; a fluid delivery conduit 12; a host 20; a host housing 21; the accommodation chamber 21a; a module fixing member 22; a mounting plate 221; the first mounting hole 221a; a main body 222; mounting channel 222a; the trigger port 222b; a fixing frame 223; a first mount 23; a second mount 24; a closing door 25; a positioning assembly 30; a first positioning structure 31; a ball head 311; a top block 312; a contact spring 313; a second positioning structure 32; the annular boss 32a; an in-position detecting device 33; a microswitch 331; a push rod 332; an infrared receiver 333; an infrared emitter 334; a Hall sensor 335; an induction magnet 336; an air path assembly 40; the driving gas branch 41; a fresh gas branch 42; an anesthetic vaporizer 421; a breathing circuit 43; a first air supply interface 50; a second air supply port 60.

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, "lateral direction," "top," "bottom," and "extending direction" are based on fig. 1 and "extending direction" is based on the orientation or positional relationship shown in fig. 6, it being understood that these orientation terms are merely for convenience in describing the present application and simplifying the description, and are not intended to 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 taken as limiting the present application.

An embodiment of the present application provides an anesthesia apparatus, please refer to fig. 1 to 5, 8, 15 to 17, the anesthesia apparatus includes: a mainframe 20, an air path assembly 40, a fluid delivery conduit module 10, and a positioning assembly 30. The host 20 includes a host housing 21 having a receiving cavity 21a and an opening, and a module fixing member 22 disposed in the receiving cavity 21a. The module fixing member 22 has a mounting passage 222a communicating with the accommodation chamber 21a, and the mounting passage 222a communicates with the outside through an opening. The air passage assembly 40 includes a first air passage interface (not shown) and a second air passage interface (not shown) which are provided in the accommodating chamber 21a. Fluid delivery tubing module 10 includes a third airway interface (not shown) and a fourth airway interface (not shown). Fluid delivery conduit module 10 is placed into mounting channel 222a through an opening or removed from mounting channel 222 a. Fluid delivery conduit module 10 has a first state in mounting channel 222a, in which fluid delivery conduit module 10 is in the first state, with the third air passage interface connected to the first air passage interface and the fourth air passage interface connected to the second air passage interface. The positioning assembly 30 is at least partially configured to be disposed on the main body 20 to position the fluid delivery conduit module 10 in the first state.

Specifically, the fluid delivery conduit module 10 being in the first state means that when the fluid delivery conduit module 10 is in the first state, it indicates that the fluid delivery conduit module 10 is installed in place. More specifically, referring to fig. 15, the anesthesia apparatus further includes a first air source interface 50 and a second air source interface 60 disposed on the main body housing 21, the first air source interface 50 and the second air source interface 60 may be disposed on the rear side of the main body housing 21, or may be disposed on the side walls of the two sides of the main body housing 21, and the first air source interface 50 and the second air source interface 60 may be connected to a centralized air supply system or an air bottle of a hospital to receive output medical gases such as oxygen, air, laughing gas, and the like. The first gas source interface 50 has two sub-interfaces, the gas circuit assembly 40 further includes a driving gas branch 41, a fresh gas branch 42 and a breathing loop 43, at least a part of the structure of the gas circuit assembly 40 is disposed in the accommodating cavity 21a, one end of the driving gas branch 41 is connected with the first gas source interface 50, the other end of the driving gas branch 41 is connected with the breathing loop 43, one end of the fresh gas branch 42 is connected with the second gas source interface 60 and the first gas source interface 50, and the other end of the fresh gas branch 42 is connected with one end of the breathing loop 43. The fluid delivery conduit module 10 further includes a fluid delivery conduit 12, a third airway interface disposed at one end of the fluid delivery conduit 12, and a fourth airway interface disposed at the other end of the fluid delivery conduit 12. When the fluid delivery tube module 10 is in the first state, the third airway interface of the fluid delivery tube module 10 is connected to the first airway interface of the driving gas branch 41, and the fourth airway interface is connected to the second airway interface of the breathing circuit 43, so as to form a complete ventilation circuit in the anesthesia apparatus. The fluid delivery conduit 12 is an elongated narrow conduit, and when a patient inhales, the first gas source interface 50 delivers the first gas to the breathing circuit 43 via the driving gas branch 41 and the fluid delivery conduit module 10, so as to provide inhalation support for the patient; meanwhile, in the fresh gas branch 42, the first gas and the second gas input through the first gas source interface 50 and the second gas source interface 60 are mixed, mixed with the anesthetic through the anesthetic vaporizer 421, and input into the breathing circuit 43 to be delivered to the patient, so as to realize supply and supplement of the anesthetic to the patient. When the patient exhales, breathing circuit 43 and fluid delivery conduit module 10 receive the gas exhaled by the patient, and excess gas in fluid delivery conduit module 10 is expelled by an exhalation valve connected to fluid delivery conduit module 10.

However, due to the requirement of cleaning and disinfection, the user needs to take the fluid delivery pipe module 10 out of the main machine 20 frequently, and after the cleaning and disinfection are completed, the fluid delivery pipe module is installed in the main machine 20 again, and if the fluid delivery pipe module 10 is not installed in place, during the operation of the anesthesia apparatus, gas leakage occurs between the third airway interface and the first airway interface, and between the fourth airway interface and the second airway interface, which further affects the performance of the anesthesia apparatus.

By arranging the positioning assembly 30, the anesthesia apparatus of the present embodiment can determine whether the fluid conveying pipeline module 10 is installed in place after the fluid conveying pipeline module 10 is placed in the installation channel 222a, so as to prevent the occurrence of the situation that the performance of the apparatus is affected due to the gas leakage caused by the fluid conveying pipeline module 10 not being installed in place.

It should be noted that the fluid conveying pipe module 10 of the present embodiment is provided with only one fluid conveying pipe 12, and therefore, only one third air passage interface and one fourth air passage interface are provided in the fluid conveying pipe module 10. In other embodiments, a plurality of fluid delivery conduits 12 may be disposed in the fluid delivery conduit module 10, and when a plurality of fluid delivery conduits 12 are disposed, each fluid delivery conduit 12 is correspondingly provided with one third air channel interface and one fourth air channel interface, which are equivalent to a plurality of third air channel interfaces and a plurality of fourth air channel interfaces. Correspondingly, the first air passage interface and the second air passage interface can be provided in plurality.

In addition, referring to fig. 1 and fig. 2, in order to prevent the fluid delivery pipe module 10 installed in the installation channel 222a from being touched by a user by mistake and causing the failure of the ventilation connection between the fluid delivery pipe module 10 and the driving gas branch and/or the breathing circuit, the opening of the main body housing 21 of the present embodiment is further provided with a closing door 25, and it is understood that in other embodiments, the closing door 25 may not be provided.

Referring to fig. 3, 6 to 9, the positioning assembly 30 of the present embodiment includes a first positioning structure 31 disposed on the module fixing member 22, and a second positioning structure 32 disposed on the fluid conveying pipe module 10. In the first state of the fluid conveying pipe module 10, the first positioning structure 31 abuts against the second positioning structure 32. That is, in the present embodiment, a portion of the positioning assembly 30 (i.e., the first positioning structure 31) is disposed on the module fixing member 22, and a portion of the positioning assembly (i.e., the second positioning structure 32) is disposed on the fluid conveying pipe module 10.

The first positioning structure 31 and the second positioning structure 32 are positioned by abutting, so that a certain touch feeling can be provided for a user, the user can intuitively feel that the fluid conveying pipeline module 10 is installed in place, and even certain first positioning structure 31 and second positioning structure 32 can make a certain sound when abutting, so as to give more obvious prompt to the user.

Of course, when the fluid delivery conduit module 10 is not in place, the fluid delivery conduit module 10 may be considered to be in the second state.

In other embodiments, the first positioning structure 31 may abut against the second positioning structure 32 in the second state, that is, when the fluid conveying pipe module 10 is not mounted in place; in the first state, i.e. when the fluid conveying pipe module 10 is mounted in place, the first positioning structure 31 and the second positioning structure 32 do not abut, and how this positioning is achieved will be described later according to a specific embodiment.

Further, referring to fig. 4 to 9, the first positioning structure 31 of the present embodiment is disposed on a side of the module fixing member 22 close to the opening. That is, the first positioning structure 31 and the second positioning structure 32 of the present embodiment are positioned at positions close to the opening, thereby making the tactile sensation of the user more noticeable when the fluid delivery pipe module 10 is mounted in place.

Specifically, the module fixing member 22 of the present embodiment includes a mounting plate 221 and a main body 222 having a mounting passage 222 a. The main body 20 further includes a first mounting seat 23 and a second mounting seat 24 disposed in the accommodating chamber 21a and located on a side of the accommodating chamber 21a close to the opening. In the transverse direction of the opening, the first mounting seat 23 and the second mounting seat 24 are oppositely disposed on both sides of the accommodating chamber 21a. The mounting plate 221 is disposed on the first and second mounting

seats

23 and 24, and the first positioning structure 31 is disposed on the mounting plate 221. The main body 222 is located on a side of the first and second mounting

seats

23 and 24 away from the opening. The mounting plate 221 of the present embodiment is disposed on the side of the first mounting seat 23 and the second mounting seat 24 close to the top wall of the accommodating cavity 21a, in other embodiments, the mounting plate 221 may also be disposed on the side of the first mounting seat 23 and the second mounting seat 24 close to the bottom wall of the accommodating cavity 21a, or the mounting plate 221 may also be disposed on the main body 222, and the first positioning structure 31 may also be disposed directly on the main body 222 without disposing the mounting plate 221. Likewise, in other embodiments, the first positioning structure 31 may be disposed at any position in the mounting channel 222a, for example, the first positioning structure 31 may be disposed at the top, the bottom or both sides of the mounting channel 222a, as long as the first positioning structure 31 can cooperate with the second positioning structure 32 to position the fluid conveying pipe module 10.

Referring to fig. 6 to 9, the fluid delivery pipe module of the present embodiment includes a housing 11 having an inner cavity 11a, a first positioning structure 31 is a ball plunger, and a second positioning structure 32 is a positioning groove formed on the housing 11. The fluid delivery pipe module 10 is in the first state, and the ball plunger abuts against the inner wall of the positioning groove.

Specifically, the module fixing member 22 of the present embodiment has a first mounting hole 221a disposed along a direction perpendicular to the extending direction of the mounting channel 222 a. The ball plunger is mounted in the first mounting hole 221a, and the ball 311 of the ball plunger is located outside the first mounting hole 221a. More specifically, since the ball plungers of the present embodiment are provided on the mounting plate 221, the first mounting holes 221a are also provided on the mounting plate 221, and the ball 311 abuts against the inner wall of the positioning groove in the first state of the fluid conveying pipe module 10.

Further, a part of the structure of the housing 11 of the present embodiment protrudes in a direction away from the inner cavity 11a to form a positioning groove having an annular protrusion on the peripheral side. When installing the fluid delivery pipe module 10, the user pushes the fluid delivery pipe module 10 into the installation channel 222a from the opening along the extending direction of the installation channel 222a, before the annular protrusion 32a contacts with the ball 311, the plunger spring (not shown) in the ball plunger is kept in a free state, when the fluid delivery pipe module 10 moves to the position where the annular protrusion 32a contacts with the ball 311 in the direction away from the opening, a certain extrusion force is applied to the ball 311 by the annular protrusion 32a, the plunger spring is gradually compressed, the ball 311 slides into the positioning groove along the outer surface of the annular protrusion 32a, the plunger spring recovers a certain elastic deformation to make the ball 311 abut against the inner wall of the positioning groove, and similarly, when the fluid delivery pipe module 10 needs to be taken out, the user only needs to pull the fluid delivery pipe module 10 outward in the direction of the opening, and the plunger spring is gradually compressed again, thereby enabling the ball 311 to slide out from the positioning groove. That is, the annular protrusion 32a has both the guide and the stopper functions.

It is understood that in other embodiments, the first mounting hole 221a may not be provided, for example, the ball plunger may be directly fixed to the module fixing member 22. In other embodiments, the annular protrusion 32a may not be provided, for example, a part of the structure of the housing 11 may protrude toward the direction close to the inner cavity 11a to form a positioning groove, when the fluid delivery pipe module 10 is installed, the user pushes the fluid delivery pipe module 10 into the installation channel 222a from the opening, before the ball 311 slides into the positioning groove, the outer surface of the housing 11 keeps in contact with the ball 311, so that the plunger spring in the ball plunger is compressed, and after the ball 311 slides into the positioning groove, the ball plunger spring recovers a certain elastic deformation to make the ball 311 abut against the positioning groove, and vice versa.

In other embodiments, when the first positioning structure 31 abuts against the second positioning structure 32 in the second state, that is, when the fluid conveying pipe module 10 is not installed in place, and when the first positioning structure 31 does not abut against the second positioning structure 32 in the first state, that is, when the fluid conveying pipe module 10 is installed in place, a specific implementation manner may be that the first positioning structure 31 is a ball plunger, the second positioning structure 32 is a positioning slide formed on the housing 11, and when the fluid conveying pipe module 10 is located in the installation channel 222a, an arrangement direction of the positioning slide is parallel to an extension direction of the installation channel 222 a. After a user pushes the fluid conveying pipeline module 10 into the installation channel 222a from the opening along the extending direction of the installation channel 222a, the ball 311 of the ball plunger slides into the positioning slide way, before the fluid conveying pipeline module 10 is installed in place, the ball 311 abuts against the inner wall of the positioning slide way, meanwhile, under the pushing of external force of the user, the ball 311 can slide in the positioning slide way relative to the positioning slide way, at this moment, the fluid conveying pipeline module 10 is always kept in the second state, when the fluid conveying pipeline module 10 is installed in place, the ball 311 slides out of the positioning slide way, and at this moment, the fluid conveying pipeline module 10 is in the first state.

In other embodiments, the first positioning structure 31 may be a positioning groove formed on the module fixing member 22, and the second positioning structure 32 may be a ball plunger. When the fluid delivery pipe module 10 is in the first state, the ball 311 abuts against the inner wall of the positioning groove.

For example, referring to fig. 11, in another embodiment, the first positioning structure 31 may be an elastic contact, the second positioning structure 32 is a positioning slot, the elastic contact includes a contact spring 313 and a top block 312, one end of the contact spring 313 is fixed on the module fixing member 22, the other end of the contact spring 313 is connected with the top block 312, and the top block 312 abuts against the inner wall of the positioning slot when the fluid conveying pipe module 10 is in the first state. Similarly, the first positioning structure 31 can also be a positioning slot, and the second positioning structure 32 can be a spring contact. For another example, referring to fig. 12, in another embodiment, the first positioning structure 31 may be a spring, the second positioning structure 32 is a positioning groove, and similarly, the first positioning structure 31 may also be a positioning groove, and the second positioning structure 32 is a spring. Referring to fig. 3 and 4, a portion of the housing 11 of the present embodiment is recessed toward the inner cavity 11a to form at least one holding portion 11b. The fluid delivery pipe module 10 is in the first state with the grip 11b on the side of the housing 11 facing the opening.

Specifically, the housing 11 of the present embodiment is formed with two holding portions 11b, and the two holding portions 11b are provided to facilitate a user to hold the fluid conveying pipe module 10, so that the fluid conveying pipe module 10 can be taken and placed more conveniently. It is understood that in other embodiments, there may be only one or more than two holding portions 11b, and the number is not limited herein.

Referring to fig. 6, 8 and 10, the positioning assembly 30 of the present embodiment includes an in-position detection device 33, wherein the in-position detection device 33 detects the position of the fluid conveying pipe module 10 in the installation channel 222a, and outputs in-position information when the fluid conveying pipe module 10 is in the first state.

Specifically, the in-place detection device 33 mainly detects the position of the fluid conveying pipeline module 10 in the installation channel 222a by means of signal transmission, and the signal transmitted by the in-place detection device 33 may be a sensing signal, a trigger signal, or the like. According to different arrangement positions and/or detection modes of the position detection device 33, the in-place detection device 33 may transmit corresponding signals when the fluid conveying pipeline module 10 is installed in place, stop transmitting signals when the fluid conveying pipeline module 10 is taken out from the installation channel 222a and the fluid conveying pipeline module 10 is not installed in place, and output in-place information when the in-place detection device 33 transmits corresponding signals, and output non-in-place information when the in-place detection device 33 stops transmitting signals. Alternatively, when the fluid transportation pipe module 10 is taken out from the installation channel 222a and the fluid transportation pipe module 10 is not installed in place, the corresponding signal may be transmitted, when the fluid transportation pipe module 10 is installed in place, the signal transmission may be stopped, which corresponds to that when the in-place detection device 33 transmits the corresponding signal, the non-in-place information is output, and when the in-place detection device 33 stops transmitting the signal, the in-place information is output. In addition, there are different detection modes according to the types of the in-place detection devices 33, for example, some of the in-place detection devices 33 only need one detection element to detect the position of the fluid conveying pipeline module 10 in the installation channel 222a, and some of the in-place detection devices 33 need one detection element to cooperate with other detection elements or trigger mechanisms to detect the position of the fluid conveying pipeline module 10 in the installation channel 222a, and specifically, which in-place detection devices 33 can be used and how to detect, which will be described in detail later.

In this embodiment, the anesthesia machine further comprises a controller (not shown), and the controller is electrically connected to the in-position detection device 33 to receive the in-position information outputted by the in-position detection device 33. Further, the anesthesia machine may be configured to: when the controller receives the in-place information, the anesthesia machine can be normally started. Or, one or more of a sound module, a vibration module, and a light module may be disposed on the host 20, and when the controller receives the in-place information, the controller controls the sound module to emit a prompt sound, controls the vibration module to emit vibration, controls the light module to emit a prompt light, and so on. In other embodiments, the in-place detection device 33 may not output the in-place information to the controller, for example, the in-place detection device 33 may directly output the in-place information to the sound module, the vibration module and/or the light module, so as to trigger the sound module to emit a warning sound, the vibration module to emit a vibration, the light module to emit a warning light, and the like when the fluid conveying pipeline module 10 is installed in place, or may also output the in-place information to the sound module, the vibration module and/or the light module, and the like, while outputting the in-place information to the controller.

It should be noted that, as those skilled in the art will know, the controller may adopt various existing chips with signal input and signal output as the control device, and may adopt an electric signal control mode or a software control mode for control.

The first positioning structure 31 and the second positioning structure 32 of the present embodiment are mainly positioned by abutting, so as to provide a user with a distinct touch feeling and abutting sound, and the in-place detection device 33 can further determine whether the fluid delivery pipe module 10 is installed in place by detecting and information transmitting, thereby not only providing the user with a most intuitive feeling, but also ensuring the installation accuracy of the fluid delivery pipe module 10. It will be appreciated that in other embodiments, the positioning assembly 30 may have only the first and

second positioning structures

31 and 32, or only the position detection device 33.

Referring to fig. 6, 8 and 10, the position detecting device 33 of the present embodiment includes a micro switch 331 disposed on the host 20. When the fluid transportation pipe module 10 is in the first state, the fluid transportation pipe module 10 triggers the micro switch 331, so that the micro switch 331 outputs the in-place information.

Specifically, the in-position detecting device 33 of the present embodiment further includes a push rod 332 provided on the microswitch 331. The push rod 332 extends at least partially into the mounting channel 222 a. In the first state of the fluid delivery conduit module 10, the fluid delivery conduit module 10 pushes the push rod 332 to trigger the micro switch 331. That is to say, the micro switch 331 of the present embodiment is triggered by the push rod 332, and more specifically, referring to fig. 5, the module fixing member 22 of the present embodiment further includes a fixing frame 223. The side of the main body 222 away from the opening has a trigger opening 222b communicated with the installation channel 222a, and the fixing frame is connected with the main body 222 and located on the side of the trigger opening 222b away from the installation channel 222 a. The fluid delivery tubing module 10 is mounted on a mounting bracket with one end of the push rod 332 extending from the trigger port 222b into the mounting channel 222 a. That is, the micro switch 331 of the present embodiment is disposed on the module fixing member 22, when the fluid transportation pipe module 10 is not installed in place or the fluid transportation pipe module 10 is taken out from the installation channel 222a, the micro switch 331 does not transmit the trigger signal to the controller, when the fluid transportation pipe module 10 is installed in place, the triggered micro switch 331 transmits the trigger signal to the controller, and the transmitted trigger signal is equivalent to that the micro switch 331 outputs the in-place information to the controller, so that the controller can determine that the fluid transportation pipe module 10 is installed in place. It should be noted that in other embodiments, the micro switch 331 may not be disposed on the module fixing member 22, for example, the micro switch 331 may be disposed in the mounting channel 222a but not connected to the module fixing member 22, the micro switch 331 may be disposed on the main machine housing 21, or a support for fixing the micro switch 331 may be separately disposed in the accommodating cavity 21a, as long as it is ensured that the fluid delivery pipe module 10 can trigger the micro switch 331 when the fluid delivery pipe module 10 is mounted in place. In other embodiments, a triggering mechanism such as a rocker, a spring, etc. may be used instead of the push rod 332, or the push rod 332 may not be provided, but the triggering is directly realized by the contact between the fluid conveying pipeline module 10 and the triggering end of the micro switch 331, in this scenario, the in-place detection device 33 can detect the position of the fluid conveying pipeline module 10 only by using one detection element, i.e. the micro switch 331, to cooperate with the controller.

Similarly to the microswitch 331, the in-place detection device 33 may also be an ultrasonic detection device, a pressure detection device, or the like, that is, the microswitch 331 of the present embodiment may be replaced with an ultrasonic sensor or a pressure sensor, and when the fluid delivery pipe module 10 is installed in place, the fluid delivery pipe module 10 approaches the ultrasonic sensor, and the ultrasonic sensor outputs in-place information, or when the fluid delivery pipe module 10 is installed in place, the fluid delivery pipe module 10 contacts the pressure sensor, and the pressure sensor outputs in-place information.

Referring to fig. 13, in another embodiment, the in-place detection device 33 is an infrared detection device, the infrared detection device includes an infrared receiver 333 and an infrared transmitter 334 that are oppositely disposed on the host 20, the infrared receiver 333 and the infrared transmitter 334 of this embodiment are disposed on the module fixing member 22 and are located outside the installation channel 222a, in other embodiments, the infrared receiver 333 and the infrared transmitter 334 may also be disposed in the installation channel 222a, and likewise, the infrared receiver 333 and the infrared transmitter 334 may also not be disposed on the module fixing member 22. The fluid delivery pipe module 10 is formed with a shielding portion 11c. When the fluid transport duct module 10 is not mounted in place or the fluid transport duct module 10 is taken out of the mounting passage 222a, the infrared transmitter 334 transmits infrared light to the infrared receiver 333, and the infrared receiver 333 outputs a sensing signal, which corresponds to the case where the infrared receiver 333 outputs non-in-place information, and when the fluid transport duct module 10 is mounted in place, i.e., when the fluid transport duct module 10 is in the first state, the shielding portion 11c is located between the infrared transmitter 334 and the infrared receiver 333 and cuts off infrared transmission between the infrared transmitter 334 and the infrared receiver 333 to stop the infrared receiver 333 from outputting the sensing signal, which corresponds to the case where the infrared receiver 333 outputs in-place information. In this scenario, the in-position detection device 33 includes at least one transmitter and one receiver. Similar with infrared detection device, detection device 33 that targets in place 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, promptly, can replace the infra-red transmitter 334 of this embodiment for opto-coupler transmitter, replace infra-red receiver 333 for opto-coupler receiver, and its detection mode is similar with infrared detection device, no longer has repeated here.

Referring to fig. 14, in yet another embodiment, the in-position detection device 33 is a magnetic induction detection device, which includes a hall sensor 335 disposed on the main frame 20 and an induction magnet 336 disposed on the fluid conveying pipe module 10. The hall sensor 335 of the present embodiment is disposed above the mounting channel 222a, and the position of the sensing magnet 336 corresponds to the hall sensor 335, it is understood that in other embodiments, the specific positions of the hall sensor 335 and the sensing magnet 336 can be adjusted according to the need, and are not limited herein. When the fluid delivery conduit module 10 is not installed in place or the fluid delivery conduit module 10 is removed from the installation channel 222a, the hall sensor 335 cannot output a sensing signal, which is equivalent to the hall sensor 335 outputting non-in-place information, when the fluid delivery conduit module 10 is installed in place, i.e. the fluid delivery conduit module 10 is in the first state, the sensing magnet 336 faces the hall sensor 335, the hall sensor 335 detects the sensing magnet 336 and outputs a sensing signal, which is equivalent to the hall sensor 335 outputting in-place information.

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, or improvement 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 is characterized by comprising

a fluid delivery conduit module comprising a third air passage interface and a fourth air passage interface; the fluid conveying pipeline module is placed into the installation channel through the opening or taken out of the installation channel; the fluid conveying pipeline module has a first state in the installation channel, the fluid conveying pipeline module is in the first state, the third air passage interface is connected with the first air passage interface, and the fourth air passage interface is connected with the second air passage interface;

the positioning assembly is at least partially structurally arranged on the host machine so as to position the fluid conveying pipeline module in the first state; the positioning assembly comprises a first positioning structure arranged on the module fixing piece, a second positioning structure arranged on the fluid conveying pipeline module and an in-place detection device; the fluid conveying pipeline module is in the first state, the first positioning structure is abutted to the second positioning structure, the in-place detection device detects the position of the fluid conveying pipeline module in the installation channel, and in-place information is output when the fluid conveying pipeline module is in the first state.

2. The anesthesia machine of claim 1, wherein the fluid delivery conduit module comprises a housing having an interior cavity, the first positioning structure is a ball plunger, and the second positioning structure is a positioning slot formed on the housing;

and the fluid conveying pipeline module is in the first state, and the ball plunger is abutted against the inner wall of the positioning groove.

3. The anesthesia machine of claim 2, wherein a portion of the housing is configured to project away from the interior cavity to form the detent groove having a circumferential annular projection;

and the ball head of the ball head plunger slides into the positioning groove along the outer surface of the annular bulge part to be abutted against the inner wall of the positioning groove, or slides out of the positioning groove.

4. The anesthesia machine of claim 1, wherein the first positioning structure is a positioning slot formed on the module fixture and the second positioning structure is a ball plunger;

the fluid conveying pipeline module is in the first state, and the ball plunger is abutted to the inner wall of the positioning groove.

5. The anesthesia machine of claim 1, wherein one of the first and second positioning structures is a spring contact and the other of the first and second positioning structures is a detent; or the like, or, alternatively,

one of the first positioning structure and the second positioning structure is a spring plate, and the other one of the first positioning structure and the second positioning structure is a positioning groove.

6. The anesthesia machine of any of claims 1-5, wherein the first detent structure is disposed on a side of the module retainer proximate the opening.

7. The anesthesia machine of claim 6, wherein the module fixture comprises a mounting plate and a body having the mounting channel; the host machine also comprises a first mounting seat and a second mounting seat which are arranged in the accommodating cavity and positioned on one side of the accommodating cavity close to the opening;

the first mounting seat and the second mounting seat are oppositely arranged on two sides of the accommodating cavity along the transverse direction of the opening;

the mounting plate is arranged on the first mounting seat and the second mounting seat, and the first positioning structure is arranged on the mounting plate;

the main body is located the first mount pad with the second mount pad is kept away from one side of opening.

8. The anesthesia machine of claim 2 or 3, wherein a portion of the housing is recessed in a direction proximal to the interior cavity to form at least one grip;

when the fluid delivery pipe module is in the first state, the holding part is positioned on one side of the shell facing the opening.

9. The anesthesia machine of claim 1, further comprising a controller electrically connected to the in-position detection device for receiving the in-position information output by the in-position detection device.

10. The anesthesia machine of claim 1, wherein the in-place detection device comprises a micro switch disposed on the main machine;

and when the fluid conveying pipeline module is in the first state, the fluid conveying pipeline module triggers the micro switch so that the micro switch outputs the in-place information.

11. The anesthesia machine of claim 10, wherein the in-place detection device further comprises a push rod disposed on the microswitch, wherein at least a portion of the push rod extends into the mounting channel;

the fluid conveying pipeline module is in the first state, and pushes the push rod to trigger the micro switch.

12. The anesthesia machine of claim 11, wherein the module fixture comprises a mounting bracket and a main body having the mounting channel;

the side of the main body, which is far away from the opening, is provided with a trigger port communicated with the mounting channel, and the fixing frame is connected with the main body and is positioned on the side, which is far away from the mounting channel, of the trigger port;

the fluid conveying pipeline module is arranged on the fixed frame, and one end of the push rod extends into the installation channel from the trigger port.

13. The anesthesia machine of claim 1, wherein the in-position detection device is an infrared detection device, the infrared detection device comprises an infrared receiver and an infrared transmitter which are oppositely arranged on the main machine, and a shielding part is formed on the fluid conveying pipeline module;

and when the fluid conveying pipeline module is in the first state, the shielding part is positioned between the infrared transmitter and the infrared receiver and cuts off the infrared transmission between the infrared transmitter and the infrared receiver so that the infrared receiver outputs the in-place information.

14. The anesthesia machine of claim 1, wherein the position detection device is a magnetic induction detection device comprising a hall sensor disposed on the main machine and an induction magnet disposed on the fluid delivery conduit module;

the fluid conveying pipeline module is in the first state, and the induction magnet faces the Hall sensor so that the Hall sensor outputs the in-place information.

15. The anesthesia machine of claim 1, wherein the position detection device is one of an opto-coupler detection device, an ultrasonic detection device and a pressure detection device.