Soda lime tank device, breathing circuit device and anaesthesia machine

Abstract

The invention provides a soda lime tank device, a breathing circuit device and an anaesthesia machine. The soda lime tank device comprises a mounting assembly, a fixing part, a lifting assembly and a soda lime tank. The mounting assembly comprises a conductor assembly, a first conductive circuit and a second conductive circuit, and the first conductive circuit and the second conductive circuit are arranged at intervals and are used for being electrically connected with a circuit of the anesthesia machine body; in an unlocking state, the soda lime tank is separated from the mounting assembly, and the conductor assembly is disconnected from at least one of the first conducting circuit and the second conducting circuit, so that the first conducting circuit and the second conducting circuit are disconnected; in the locking state, the soda lime tank abuts against the mounting assembly, and the conductor assembly is connected with the first conductive circuit and the second conductive circuit under the action of the soda lime tank, so that the first conductive circuit is electrically connected with the second conductive circuit. According to the soda lime tank device, the complexity and the cost for detecting the in-place state of the soda lime tank can be reduced, and the detection reliability is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of anesthetic machine equipment, and particularly relates to a soda lime canister device, a breathing circuit device and an anesthetic machine. Background Art

[0002] In the breathing circuit system of an anesthetic machine, the soda lime canister, as a core component, is responsible for absorbing carbon dioxide in the exhaled gas of the patient to ensure the safety and stability of the anesthetic process. As the operation time prolongs or the absorption efficiency of the soda lime decreases, it is necessary to replace the soda lime canister in time to ensure its normal function. However, the disassembly and replacement of the soda lime canister will cause significant changes in the compliance and air resistance of the breathing circuit, thereby affecting the ventilation stability of the anesthetic machine. Therefore, accurately monitoring the loading and unloading state of the soda lime canister is crucial for ensuring the real-time regulation of the breathing circuit system of the anesthetic machine.

[0003] Currently, the detection of the in-place state of the soda lime canister mainly relies on a mechanical transmission type switch device. This device converts the vertical locking stroke of the soda lime canister into the displacement of a touch switch in the horizontal direction through an inclined plane guiding mechanism, thereby triggering signal feedback. However, this mechanical transmission method of converting the vertical direction into the horizontal direction is too complex, prone to jamming and malfunction, and requires frequent disassembly and repair of the inclined plane guiding mechanism and the switch assembly, increasing the maintenance workload and cost; moreover, the linkage of multiple components is easily affected by vibration, wear or assembly deviation, and may lead to poor transmission or misjudgment after long-term use, with poor reliability; there is a clearance error in the mechanical conversion process, it is difficult to accurately identify small displacement changes, and when converting from vertical movement to horizontal movement, the conversion angle is 90°. To ensure the force angle of the conversion mechanism during contact, the converted horizontal stroke is relatively limited, and signal false alarms may occur when triggering the mechanical switch. Summary of the Invention

[0004] The soda lime canister device, breathing circuit device and anesthetic machine provided by the present invention can solve the problem of low reliability in detecting the in-place state of the existing soda lime canister.

[0005] To solve the above technical problems, the present application provides a soda lime canister device, which includes a mounting assembly, a fixing member, a lifting assembly and a soda lime canister. The mounting assembly includes a conductor assembly, a first conductive line and a second conductive line. The first conductive line and the second conductive line are arranged at intervals, and the first conductive line and the second conductive line are respectively used for electrically connecting with the circuit of the anesthetic machine main body; the mounting assembly and the fixing member are arranged opposite to each other at intervals; the lifting assembly is arranged on the fixing member, and one side of the lifting assembly facing the mounting assembly has a mounting position; the soda lime canister is arranged at the mounting position and is located between the mounting assembly and the fixing member;

[0006] The lifting assembly is used to drive the installation position to move, so that the soda lime canister approaches or moves away from the installation assembly, so that the conductor assembly moves, and the locking state and unlocking state of the soda lime canister device are switched; in the unlocking state, the soda lime canister is separated from the installation assembly, and the conductor assembly is disconnected from at least one of the first conductive line and the second conductive line, so that there is an open circuit between the first conductive line and the second conductive line; in the locking state, the soda lime canister abuts against the installation assembly, and the soda lime canister can communicate with the breathing circuit main body through the installation assembly. Under the thrust of the soda lime canister, the conductor assembly connects the first conductive line and the second conductive line, so that the first conductive line and the second conductive line are electrically connected.

[0007] In one embodiment, the conductor assembly includes a conductor and a first elastic member. The installation assembly further includes a housing assembly for assembling the conductor assembly, the first conductive line and the second conductive line; the first elastic member abuts against the housing assembly and the conductor; in the locking state, the first elastic member has elastic potential energy that can make the conductor move toward one side of the fixing member.

[0008] In one embodiment, a first guiding channel is provided in the housing assembly, and at least a part of the conductor is movably arranged in the first guiding channel; the first conductive line includes a first contact, the second conductive line includes a second contact, and at least a part of the first contact and at least a part of the second contact are located in the first guiding channel; in the unlocking state, the conductor is disconnected from at least one of the first contact and the second contact, and in the locking state, the conductor abuts against the first contact and the second contact.

[0009] In one embodiment, the conductor includes a first part, a second part and a third part. The first guiding channel includes a first channel and a second channel, and the first channel and the second channel are arranged side by side at intervals; the first part and the first contact are arranged in the first channel, the second part and the second contact are arranged in the second channel, and the third part is arranged outside the first channel and the second channel, and both ends of the third part are respectively connected to the first part and the second part.

[0010] In one embodiment, the first conductive line further includes a third contact and a first wire, and both ends of the first wire are respectively connected to the third contact and the first contact. The second conductive line further includes a fourth contact and a second wire, and both ends of the second wire are respectively connected to the fourth contact and the second contact; the third contact and the fourth contact are exposed on the outer surface of the housing assembly for electrically connecting with the contacts of the anesthesia machine main body respectively.

[0011] In one embodiment, the installation assembly further includes an insulating seat having a first installation cavity and a second installation cavity arranged at intervals. One end of the first wire and the third contact are arranged in the first installation cavity, and one end of the second wire and the fourth contact are arranged in the second installation cavity; a slot is provided on the outer surface of the housing assembly, and the insulating seat is installed in the slot, and the third contact and the fourth contact are arranged opposite to the slot opening.

[0012] In one embodiment, the housing assembly includes a top seat and a top cover assembly. The soda lime canister device further includes a connecting member. The top seat and the fixing member are disposed opposite to each other at an interval. Two ends of the connecting member are respectively connected to the top seat and the fixing member. The top seat is used for being fixed on the breathing circuit main body; the top cover assembly is fixed on a side of the top seat facing the fixing member.

[0013] In one embodiment, the top cover assembly includes a fixing seat and a cover body. The fixing seat is fixed on the top seat. The cover body is mounted on a side of the fixing seat facing the fixing member through a second elastic member. The first conductive circuit and the second conductive circuit are assembled on the fixing seat and the top seat. The conductor assembly is assembled on a side of the fixing seat facing the cover body, and the conductor abuts against the cover body. In the unlocked state, the cover body is separated from the fixing seat under the action of the elastic potential energy of the second elastic member; in the locked state, the cover body abuts against the fixing seat under the thrust of the soda lime canister.

[0014] To solve the above technical problems, the present application provides a breathing circuit device, which includes a breathing circuit main body and the soda lime canister device involved in any one of the above, and the soda lime canister device is fixed on the breathing circuit main body.

[0015] To solve the above technical problems, the present application provides an anesthesia machine, which includes an anesthesia machine main body and the breathing circuit device involved in any one of the above, and the breathing circuit main body is installed on the anesthesia machine main body.

[0016] The soda lime canister device provided by the present application realizes the on-off of the circuit by the contact and disconnection of the conductor assembly with the first conductive circuit and the second conductive circuit, without involving complex mechanical motion transmission, reducing the complexity of the implementation structure, and avoiding the jamming or mis-triggering that is likely to occur in complex mechanical transmissions; and there are no sliding friction components, significantly reducing the risk of wear, and not easily having problems such as clearance errors or transmission failures, improving the reliability; there is no need for high-precision machining of mechanical components, using conventional electronic components, without customized mechanical processing, and no vulnerable mechanical components, so it is convenient for maintenance and reduces the processing cost. Description of the Drawings

[0017] Figure 1 Partial structural schematic diagram of an anesthesia machine provided by an embodiment of the present application;

[0018] Figure 2 Partial structure of the anesthesia machine main body and structural schematic diagram of the soda lime canister device in the locked state provided by an embodiment of the present application;

[0019] Figure 3 Partial structure of the anesthesia machine main body and structural schematic diagram of the soda lime canister device in the unlocked state provided by an embodiment of the present application;

[0020] Figure 4 ForFigure 2 Exploded view;

[0021] Figure 5 Schematic diagram of the partial structure of the anesthesia machine main body and the structure of the soda lime canister device provided by an embodiment of the present application;

[0022] Figure 6 Schematic diagram of the structure of the soda lime canister device in the unlocked state provided by an embodiment of the present application;

[0023] Figure 7 Exploded view of the soda lime canister device provided by an embodiment of the present application;

[0024] Figure 8 is Figure 6 a cross-sectional view of;

[0025] Figure 9 Schematic diagram of the structure of the soda lime canister device in the locked state provided by an embodiment of the present application;

[0026] Figure 10 is Figure 9 a cross-sectional view of;

[0027] Figure 11 is Figure 6 another cross-sectional view of;

[0028] Figure 12 is Figure 9 another cross-sectional view of;

[0029] Figure 13 Schematic diagram of the structure of the fixing member provided by an embodiment of the present application;

[0030] Figure 14 Exploded view of the soda lime canister device provided by another embodiment of the present application.

[0031] Reference numerals: anesthesia machine main body 10, fifth contact 11, sixth contact 12, structural member 13, fixing block 14, circuit board 15, breathing circuit device 20, breathing circuit main body 30, soda lime tank device 40, mounting assembly 41, conductor assembly 411, conductor 4111, first part 4112, second part 4113, third part 4114, first elastic member 4115, first conductive line 412, first contact 4121, third contact 4122, first wire 4123, second conductive line 413, second contact 4131, fourth contact 4132, second wire 4133, housing assembly 414, first guiding channel 4141, first channel 4142, second channel 4143, assembly groove 4144, insulating seat 415, first mounting cavity 4151, second mounting cavity 4152, pressing plate 416, fixing member 42, second guiding channel 421, mounting groove 422, through hole 423, lifting assembly 43, mounting position 431, first positioning portion 4311, driving member 432, supporting member 433, guiding portion 4331, abutting portion 4332, transmission member 434, soda lime tank 44, opening portion 441, first opening 4411, second opening 4412, accommodating cavity 442, second positioning portion 443, connecting member 45, top seat 50, top cover assembly 60, sealing structure 61, first seal 611, second seal 612, first air inlet 62, first air outlet 63, housing 64, fixing seat 641, second air inlet 6411, second air outlet 6412, first cavity 6413, second cavity 6414, cover body 642, second elastic member 65, filter screen 66, elastic valve core 67. Detailed implementation manners

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings through specific implementation manners. Similar elements in different implementation manners are labeled with related similar reference numerals. In the following implementation manners, many detailed descriptions are provided to enable a better understanding of the present application. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification to avoid overwhelming the core part of the present application with excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the descriptions in the specification and general technical knowledge in the art.

[0033] In addition, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can also be reordered or adjusted in a manner that would be obvious to those skilled in the art. Therefore, the various sequences in the specification and drawings are only for clearly describing a particular embodiment and do not mean a necessary sequence, unless it is stated that a certain sequence must be followed.

[0034] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any sequential or technical meaning. And the "connection" and "coupling" mentioned in this application, unless otherwise specified, both include direct and indirect connection (coupling).

[0035] The definitions of terms such as "parallel" and "perpendicular" are based on the current technological level and are not absolute and strict definitions in the mathematical sense. A small deviation is allowed, and being approximately parallel or approximately perpendicular, etc. are all acceptable. For example, A is parallel to B means that A is parallel to B or approximately parallel to B, and the included angle between A and B can be between 0° and 10°. For example, A is perpendicular to B means that A is perpendicular to B or approximately perpendicular to B, and the included angle between A and B can be between 80° and 100°. The orientation terms mentioned in the embodiments of this application, such as "upper", "inner", "outer", "side", etc., are only with reference to the direction of the drawings. Therefore, the orientation terms are used to better and more clearly illustrate and understand the embodiments of this application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the embodiments of this application.

[0036] Please refer to Figure 1 , this application provides an anesthesia machine, which includes an anesthesia machine main body 10 and a breathing circuit device 20. Only a part of the structure of the anesthesia machine main body 10 is provided in this application. Among them, the breathing circuit device 20 includes a breathing circuit main body 30 and a soda lime tank device 40. The breathing circuit main body 30 is installed on the anesthesia machine main body 10, and the soda lime tank device 40 is fixed to the breathing circuit main body 30. Specifically, the side wall of the breathing circuit main body 30 is connected to the anesthesia machine main body 10, and the soda lime tank device 40 is fixed below the breathing circuit main body 30. Figure 1

[0037] Figures 2 - 5 As Figures 2 - 5As shown, the soda lime canister device 40 includes a mounting assembly 41, a fixing member 42, a lifting assembly 43, and a soda lime canister 44. The mounting assembly 41 includes a conductor assembly 411, a first conductive line 412, and a second conductive line 413. The first conductive line 412 and the second conductive line 413 are arranged at intervals, that is, the first conductive line 412 and the second conductive line 413 are not electrically connected by direct contact between the two. The first conductive line 412 and the second conductive line 413 are respectively used for electrically connecting with the circuit of the anesthesia machine main body 10. The mounting assembly 41 and the fixing member 42 are arranged opposite to each other at intervals, and the mounting assembly 41 is used for connecting with the breathing circuit main body 30. The lifting assembly 43 is arranged on the fixing member 42, and the side of the lifting assembly 43 facing the mounting assembly 41 has a mounting position 431, and the mounting position 431 is used for placing the soda lime canister 44. The soda lime canister 44 is arranged at the mounting position 431 and is located between the mounting assembly 41 and the fixing member 42, so as to be clamped between the mounting assembly 41 and the fixing member 42 under the action of the lifting assembly 43.

[0038] The lifting assembly 43 is used to drive the movement of the mounting position 431, so that the soda lime canister 44 approaches or moves away from the mounting assembly 41, and switches the locking state and the unlocking state of the soda lime canister device 40. The movement of the soda lime canister 44 can cause the movement of the conductor assembly 411. As Figure 2 and Figure 3 shown, Figure 2 is the locking state of the soda lime canister device 40, Figure 3 is the unlocking state of the soda lime canister device 40. When the lifting assembly 43 drives the mounting position 431 to move closer to the mounting assembly 41 until the soda lime canister 44 abuts against the mounting assembly 41, the soda lime canister 44 is clamped between the mounting assembly 41 and the mounting position 431. The soda lime canister device 40 changes from the unlocking state to the locking state; when the lifting assembly 43 drives the mounting position 431 to move away from the mounting assembly 41, the soda lime canister 44 is separated from the mounting assembly 41, and the soda lime canister device 40 changes from the locking state to the unlocking state.

[0039] As Figure 3As shown, in the unlocked state, the soda lime canister 44 is separated from the mounting assembly 41, and the gas in the breathing circuit does not pass through the soda lime canister 44. Therefore, the soda lime canister 44 can be removed at this time to replace the soda lime canister 44. The conductor assembly 411 is disconnected from at least one of the first conductive line 412 and the second conductive line 413, so that the first conductive line 412 and the second conductive line 413 are open-circuited. Preferably, the conductor assembly 411 is disconnected from the first conductive line 412 and the conductor assembly 411 is disconnected from the second conductive line 413. Of course, it is also possible that the conductor assembly 411 is only disconnected from one of the first conductive line 412 and the second conductive line 413. In the unlocked state, the first conductive line 412 and the second conductive line 413 are open-circuited. Therefore, the first conductive line 412 and the second conductive line 413 are open-circuited with the circuit of the anesthesia machine main body 10, and the anesthesia machine main body 10 detects that the soda lime canister 44 is not installed in place.

[0040] As Figure 2 shown, in the locked state, the soda lime canister 44 abuts against the mounting assembly 41, the soda lime canister 44 is clamped between the mounting assembly 41 and the mounting position 431, and the soda lime canister 44 can communicate with the breathing circuit main body 30 through the mounting assembly 41. That is, the soda lime canister 44 is installed in place, the gas exhaled by the patient can enter the breathing circuit main body 30, then enter the soda lime canister 44 through the mounting assembly 41 for carbon dioxide absorption, and finally return to the breathing circuit main body 30 from the soda lime canister 44 through the mounting assembly 41. The conductor assembly 411 connects the first conductive line 412 and the second conductive line 413 under the thrust of the soda lime canister 44, so that the first conductive line 412 and the second conductive line 413 are electrically connected. Therefore, a conductive circuit is formed between the first conductive line 412 and the second conductive line 413 and the circuit of the anesthesia machine main body 10, and the anesthesia machine main body 10 can detect that the soda lime canister 44 is installed in place.

[0041] The soda lime canister device 40 provided by the present application realizes the on-off of the circuit by the contact and disconnection of the conductor assembly 411 with the first conductive line 412 and the second conductive line 413, does not involve complex mechanical motion transmission, reduces the complexity of the implementation structure, and avoids the jamming or mis-triggering that is likely to occur in complex mechanical transmissions; and there are no sliding friction components, significantly reducing the risk of wear, and it is not easy to have problems such as clearance errors or transmission failures, improving the reliability; there is no need for high-precision machining of mechanical components, conventional electronic components are used, there is no need for customized mechanical machining, and there are no vulnerable mechanical components, so it is easy to maintain and reduces the processing cost.

[0042] In one embodiment, as Figures 2 - 5As shown, the conductor assembly 411 includes a conductor 4111 and a first elastic member 4115. Among them, the conductor 4111 can be made of a metal material, and the first elastic member 4115 can be a spring. The mounting assembly 41 further includes a housing assembly 414, and the housing assembly 414 is used to assemble the conductor assembly 411, the first conductive line 412, and the second conductive line 413. The first elastic member 4115 abuts against the housing assembly 414 and the conductor 4111. Specifically, one end of the first elastic member 4115 is connected to the housing assembly 414, and the other end of the first elastic member 4115 is connected to the conductor 4111. In the locked state, the soda lime can 44 rises to abut against the mounting assembly 41, and the conductor 4111 receives an upward thrust, so that the first elastic member 4115 has elastic potential energy that can cause the conductor 4111 to move toward the side of the fixing member 42 under the extrusion of the conductor 4111. Thus, when the soda lime can 44 descends and separates from the mounting assembly 41, the thrust received by the conductor 4111 disappears, and the conductor 4111 moves toward the side of the fixing member 42 under the action of the elastic potential energy of the first elastic member 4115, so that the conductor 4111 is separated from at least one of the first conductive line 412 and the second conductive line 413. In this way, automatic electrical connection and disconnection between the conductor 4111 and the first conductive line 412 and the second conductive line 413 can be achieved, and when the soda lime can 44 is in place and not in place, automatic electrical connection and disconnection between the soda lime can device 40 and the anesthesia machine main body 10 can be achieved. Of course, in other embodiments, the conductor assembly 411 may not be provided with the first elastic member 4115, and the conductor 4111 can be arranged below the first conductive line 412 and the second conductive line 413, and the descent of the conductor 4111 when the thrust disappears can be achieved only by the gravity of the conductor 4111.

[0043] As Figures 2 - 5As shown, in one embodiment, a first guiding channel 4141 is provided inside the housing assembly 414. At least a part of the conductor 4111 is movably disposed in the first guiding channel 4141. The first guiding channel 4141 is preferably a straight channel, so that the conductor 4111 reciprocates linearly in the first guiding channel 4141. The first conductive line 412 includes a first contact 4121, and the second conductive line 413 includes a second contact 4131. At least a part of the first contact 4121 and at least a part of the second contact 4131 are located in the first guiding channel 4141. In the unlocked state, the conductor 4111 is disconnected from at least one of the first contact 4121 and the second contact 4131. Preferably, the conductor 4111 is separated from both the first contact 4121 and the second contact 4131, so that the first conductive line 412 and the second conductive line 413 are disconnected. In the locked state, the conductor 4111 abuts against the first contact 4121 and the second contact 4131, so that the first conductive line 412 and the second conductive line 413 are electrically connected. By providing the first guiding channel 4141, the conductor 4111 can be limited, so that the conductor 4111 can only move linearly. And by arranging the first contact 4121 and the second contact 4131 in the first guiding channel 4141, the reliability of the contact between the conductor 4111 and the first conductive line 412 and the second conductive line 413 is improved.

[0044] Further, the conductor 4111 includes a first portion 4112, a second portion 4113, and a third portion 4114. The first guiding channel 4141 includes a first channel 4142 and a second channel 4143. The first channel 4142 and the second channel 4143 are arranged side by side at intervals, and both the first channel 4142 and the second channel 4143 are straight channels. The first portion 4112 and the first contact 4121 are disposed in the first channel 4142. Among them, the first contact 4121 can be disposed at the end of the first channel 4142 away from the soda lime can 44. The second portion 4113 and the second contact 4131 are disposed in the second channel 4143. The second contact 4131 can be disposed at the end of the second channel 4143 away from the soda lime can 44. The third portion 4114 is disposed outside the first channel 4142 and the second channel 4143, and is disposed on the side of the first channel 4142 and the second channel 4143 close to the soda lime can 44. The two ends of the third portion 4114 are respectively connected to the first portion 4112 and the second portion 4113. Thus, the first contact 4121 and the second contact 4131 are respectively located in different channels, which can prevent the first contact 4121 and the second contact 4131 from directly contacting. Moreover, the arrangement of the first channel 4142 and the second channel 4143 enables the first portion 4112 and the second portion 4113 of the conductor 4111 to be more accurately abutted against the corresponding contacts, improving the reliability of the contact between the conductor 4111 and the first conductive line 412 and the second conductive line 413. And, when steam sterilization is performed in the high-temperature loop, the liquid may be hidden in the first channel 4142 and the second channel 4143 and is not easy to evaporate. The first channel 4142 and the second channel 4143 being two independent holes can prevent the first contact 4121 and the second contact 4131 from being electrically conducted by the water liquid and from generating false conduction alarms. Preferably, the first portion 4112, the second portion 4113, and the third portion 4114 of the conductor 4111 can form a structure approximately in the shape of a U. For example, the conductor 4111 can adopt the structure of a U-shaped contact pin.

[0045] In an embodiment, an assembly groove 4144 is further provided in the housing assembly 414. The assembly groove 4144 is disposed between the first channel 4142 and the second channel 4143, and is spaced from the first channel 4142 and the second channel 4143. The first elastic member 4115 is assembled in the assembly groove 4144, and one end of the first elastic member 4115 is connected to the groove wall of the assembly groove 4144, and the other end of the first elastic member 4115 is connected to the third portion 4114 of the conductor 4111.

[0046] In one embodiment, the first conductive line 412 further includes a third contact 4122 and a first wire 4123. The two ends of the first wire 4123 are respectively connected to the third contact 4122 and the first contact 4121. The second conductive line 413 further includes a fourth contact 4132 and a second wire 4133. The two ends of the second wire 4133 are respectively connected to the fourth contact 4132 and the second contact 4131. The third contact 4122 and the fourth contact 4132 are exposed on the outer surface of the housing assembly 414 for electrically connecting to the contacts of the anesthesia machine main body 10 respectively. Among them, the anesthesia machine main body 10 may also have two contacts, namely a fifth contact 11 and a sixth contact 12. The third contact 4122 is used to abut against the fifth contact 11, and the fourth contact 4132 is used to abut against the sixth contact 12. Among them, the first contact 4121, the second contact 4131, the fifth contact 11, and the sixth contact 12 may adopt conductive spring pins. The conductive spring pins are highly adaptable to small displacement changes, and the spring pins are standard parts with low procurement costs. The first wire 4123 and the second wire 4133 are wires with insulated outer skins and conductive inner cores. Preferably, tubular elastic plug connectors are respectively installed at the two ends of the first wire 4123 and the two ends of the second wire 4133. The elastic plug connectors are used to plug the corresponding contacts to achieve a conductive path. The conductive lines of the present application can all adopt conventional electronic components without customized mechanical processing, greatly reducing the processing cost.

[0047] In one embodiment, the mounting assembly 41 further includes an insulating seat 415. The insulating seat 415 has a first mounting cavity 4151 and a second mounting cavity 4152 which are arranged at intervals. One end of the first wire 4123 and the third contact 4122 are arranged in the first mounting cavity 4151, and one end of the second wire 4133 and the fourth contact 4132 are arranged in the second mounting cavity 4152. Fixing holes may be respectively arranged on the cavity walls of the first mounting cavity 4151 and the second mounting cavity 4152. Each fixing hole is used to fix the third contact 4122 and the fourth contact 4132 respectively. Preferably, only the elastic part of the head of the third contact 4122 and the fourth contact 4132 protrudes from the surface of the insulating seat 415. A slot is provided on the outer surface of the housing assembly 414. The insulating seat 415 is installed in the slot, and the third contact 4122 and the fourth contact 4132 are arranged opposite to the slot opening. Among them, the contact position of the third contact 4122 may be located inside the slot, outside the slot, or flush with the slot opening. By providing the insulating seat 415, the insulation between each wire, between each contact, and between the wire and the housing assembly 414 can be ensured.

[0048] In one embodiment, the anesthesia machine main body 10 includes a structural member 13, a fifth contact 11, a sixth contact 12, a fixing block 14, and a circuit board 15. The fifth contact 11 and the sixth contact 12 are fixed on the circuit board 15, and the circuit board 15, the fifth contact 11, and the sixth contact 12 are fixed on the structural member 13 through the fixing block 14. The structural member 13 is a fixing part on the anesthesia machine main unit. The circuit board 15 can be connected to the inside of the main unit through two wires to conduct the fifth contact 11 and the sixth contact 12 respectively. The heads of the fifth contact 11 and the sixth contact 12 can be elastic and retractable conductive spring pins, and only the elastic parts of the heads protrude from the surface of the fixing block 14.

[0049] In one embodiment, the mounting assembly 41 further includes a pressing plate 416. The pressing plate 416 is fixed on the housing assembly 414. Two mounting holes are provided on the pressing plate 416 and are respectively used for mounting the first contact 4121 and the second contact 4131 to prevent the first contact 4121 and the second contact 4131 from moving. Specifically, the pressing plate 416 can be disposed above the first channel 4142 and the second channel 4143 to facilitate the first contact 4121 and the second contact 4131 to be inserted into the first channel 4142 and the second channel 4143 respectively.

[0050] In one embodiment, as Figure 6 and Figure 7 shown, the housing assembly 414 includes a top seat 50 and a top cover assembly 60. The soda lime canister device 40 further includes a connecting member 45. The top seat 50 and the fixing member 42 are disposed opposite to each other at intervals. Two ends of the connecting member 45 are respectively connected to the top seat 50 and the fixing member 42. The number of the connecting members 45 can be two, and the two connecting members 45 are disposed opposite to each other at intervals. Thus, the top seat 50, the fixing member 42, and the two connecting members 45 cooperate to form a rectangular fixing frame. Preferably, the top seat 50, the connecting member 45, and the fixing member 42 are supported by a metal rigid material and are rigidly connected. The top seat 50 is used for being fixed on the breathing circuit main body 30. Preferably, the top seat 50 of the fixing frame is fastened below the breathing circuit main body 30.

[0051] The top cover assembly 60 is fixed on one side of the top seat 50 facing the fixing member 42. Generally, the top cover assembly 60 is located between the two connecting members 45. The top cover assembly 60 is used for communicating with the breathing circuit main body 30. Among them, an avoidance space can be provided on the top seat 50 so that the top cover assembly 60 can be in gas communication with the breathing circuit main body 30 above the top seat 50 through the avoidance space on the top seat 50.

[0052] In one embodiment, one end of the top cover assembly 60 facing the fixing member 42 has a sealing structure 61. Herein, the sealing structure 61 may be that the top cover assembly 60 includes a seal, and the seal is the sealing structure 61 on the top cover assembly 60. One end of the soda lime canister 44 facing the top cover assembly 60 has an opening 441, and the opening 441 can be surrounded to form an opening to facilitate the gas path communication between the soda lime canister 44 and the top cover assembly 60.

[0053] Figure 6 and Figure 8 is the unlocked state of the soda lime canister device 40, Figure 9 and Figure 10 is the locked state of the soda lime canister device 40. In the locked state, as shown in Figure 9 and Figure 10 , the opening 441 of the soda lime canister 44 abuts against the sealing structure 61 to prevent gas from leaking through the gap between the soda lime canister 44 and the top cover assembly 60, ensuring the sealing performance of the connection between the soda lime canister 44 and the top cover assembly 60. In the unlocked state, as shown in Figure 6 and Figure 8 , the opening 441 is separated from the sealing structure 61.

[0054] The soda lime canister device 40 does not need to install and fix its stressed parts on the anesthesia machine main body 10. Instead, by designing a fixed frame, when the lifting assembly 43 and the top cover assembly 60 clamp the soda lime canister 44, the clamping force only acts on the inside of the frame. Therefore, in order to ensure the locking force, the locking force is not transmitted to the breathing circuit main body 30, and only the machining accuracy of the parts forming the frame needs to be ensured, without considering the influence of the machining accuracy of the parts of the anesthesia machine main body 10. Moreover, the frame of the soda lime canister device 40 of the present application is fixed on the breathing circuit main body 30, not on the anesthesia machine main body 10. Therefore, it avoids the limitation that the anesthesia machine main unit needs to be provided with corresponding installation and fixing structures, and when upgrading the soda lime canister device 40 of the breathing circuit, only the entire breathing circuit needs to be replaced, without the need to synchronously upgrade the parts supporting the soda lime canister device 40 of the anesthesia machine main body 10, improving the operability of the upgrade and replacement of the soda lime canister 44 clamping device of the anesthesia machine and reducing the after-sales upgrade cost.

[0055] Such as Figure 10 and Figure 11As shown, in one embodiment, one side of the top cover assembly 60 facing the fixing member 42 has a first air inlet 62 and a first air outlet 63. Specifically, the top cover assembly 60 includes a housing 64, and the housing 64 forms the first air inlet 62 and the first air outlet 63. The housing 64 further includes a fixing base 641 and a cover body 642. The fixing base 641 is fixed on the top seat 50, and the cover body 642 is disposed on the side of the fixing base 641 facing the fixing member 42. A partial structure of the fixing base 641 facing the fixing member 42 forms the first air inlet 62. Preferably, the first air inlet 62 and the cover body 642 are arranged side by side, and a middle portion of the cover body 642 forms the first air outlet 63.

[0056] The opening 441 of the soda lime can 44 defines a first opening 4411 and a second opening 4412. The soda lime can 44 has a receiving cavity 442 therein for receiving soda lime. Two ends of the receiving cavity 442 are respectively communicated with the first opening 4411 and the second opening 4412. Specifically, an upper end of the receiving cavity 442 is communicated with the first opening 4411, and a lower end of the receiving cavity 442 is communicated with the second opening 4412.

[0057] When in the locked state, as Figure 12 shown, the first air inlet 62 and the first air outlet 63 are respectively communicated with the breathing circuit main body 30 through the top cover assembly 60. Among them, the first air inlet 62 is communicated with the first opening 4411, and the first air outlet 63 is communicated with the second opening 4412. The airflow of the breathing circuit main body 30 passes through the first opening 4411, the receiving cavity 442, the second opening 4412, and the first air outlet 63 in sequence from the first air inlet 62 of the top cover assembly 60 and then returns to the breathing circuit main body 30.

[0058] The sealing structure 61 is used to seal the gap between the first air inlet 62 and the first opening 4411 and seal the gap between the first air outlet 63 and the second opening 4412 to ensure the airtightness of the air path connection between the first air inlet 62 and the first opening 4411 and the airtightness of the air path connection between the first air outlet 63 and the second opening 4412. When in the unlocked state, the first air inlet 62 and the first air outlet 63 are blocked from the breathing circuit main body 30 to prevent air from entering the breathing circuit main body 30 through the first air inlet 62 and the first air outlet 63.

[0059] Specifically, the sealing structure 61 may include a first seal 611 and a second seal 612. The first seal 611 is disposed at the first air inlet 62, and the second seal 612 may be wrapped around the outer wall of the cover body 642. Thus, in the locked state, the opening portion 441 that encloses the first opening 4411 can be inserted into the first seal 611 and communicated with the first air inlet 62 through the first seal 611. The opening portion 441 that encloses the second opening 4412 can abut against the second seal 612 to ensure the sealing of the air path communication between the second opening 4412 and the first air outlet 63.

[0060] Among them, as Figure 2 , Figure 3 , Figure 11 and Figure 12 shown, the cover body 642 is mounted on one side of the fixed seat 641 facing the fixing member 42 through the second elastic member 65. The two ends of the second elastic member 65 are respectively connected to the fixed seat 641 and the cover body 642. The first conductive line 412 and the second conductive line 413 are assembled on the fixed seat 641 and the top seat 50. Specifically, the insulating seat 415, the third contact 4122, and the fourth contact 4132 are assembled on the top seat 50, and the first contact 4121 and the second contact 4131 are assembled on the fixed seat 641. A first channel 4142 and a second channel 4143 are provided on one side of the fixed seat 641 facing the cover body 642. Thus, the conductor assembly 411 is assembled on one side of the fixed seat 641 facing the cover body 642, and the conductor 4111 abuts against the cover body 642. In the unlocked state, the cover body 642 is separated from the fixed seat 641 under the action of the elastic potential energy of the second elastic member 65; in the locked state, the second seal 612 is lifted by the lifting assembly 43 so that the cover body 642 moves toward the housing 64 until the cover body 642 abuts against the fixed seat 641 under the thrust of the soda lime tank 44. When the cover body 642 moves toward the housing 64, the top surface of the cover body 642 pushes the conductor 4111 upward, so that the conductor 4111 can be connected to the first conductive line 412 and the second conductive line 413. By providing the second elastic member 65 on the cover body 642, in the unlocked state, the cover body 642 can move downward relative to the fixed seat 641 by a certain distance under the action of the second elastic member 65, so that the conductor 4111 can also move downward by a certain distance under the action of the first elastic member 4115, facilitating the disconnection of the conductor 4111 from the first conductive line 412 and the second conductive line 413. In addition, the setting of the second elastic member 65 can make the abutment between the soda lime tank 44 and the top cover assembly 60 have a certain buffer, and the second elastic member 65 can make the elastic valve core 67 in the housing 64 move, which will be described in detail below.

[0061] In one embodiment, as Figure 11 and Figure 12As shown, the top cover assembly 60 includes a filter net 66, which is installed at the first air outlet 63 to prevent soda lime from passing through the first air outlet 63. Specifically, the filter net 66 can be fixed at the first air outlet 63 of the cover body 642 through parts such as snap rings. The installation of the filter net 66 can effectively block the soda lime outside the top cover assembly 60, avoiding the situation that the soda lime enters the top cover assembly 60 during the process of the staff tilting, turning or moving the breathing circuit, resulting in poor sealing of each valve port of the top cover assembly 60.

[0062] In one embodiment, the top cover assembly 60 includes a housing 64 and an elastic valve core 67. The housing 64 forms a first air inlet 62, a first air outlet 63, a second air inlet 6411, a second air outlet 6412, a first cavity 6413 and a second cavity 6414. Among them, the second air inlet 6411 and the second air outlet 6412 are arranged on one side of the housing 64 facing the first fixing member 42. The second air inlet 6411 and the second air outlet 6412 are respectively in communication with the breathing circuit main body 30. The first cavity 6413 is in communication with the second air inlet 6411; the second cavity 6414 is in communication with the first air inlet 62. The elastic valve core 67 is arranged inside the housing 64 and can move under the action of the elastic potential energy of the soda lime tank 44 and the elastic valve core 67. Specifically, the elastic valve core 67 abuts against the cover body 642. When the soda lime tank 44 rises under the action of the lifting assembly 43 and abuts against the second sealing member 612 on the cover body 642, the cover body 642 moves towards the housing 64, and the second elastic member 65 installed on the cover body 642 generates a downward elastic force. The cover body 642 pushes the elastic valve core 67 to move upward, and the elastic valve core 67 generates a downward elastic force. When the soda lime tank 44 descends under the action of the lifting assembly 43 and separates from the second sealing member 612, the cover body 642 moves away from the housing 64 under the action of gravity and the elastic force of the elastic member, and the elastic valve core 67 also moves downward under the action of gravity and the elastic force of the elastic valve core 67. Thus, according to whether the soda lime tank 44 is installed in place, the position of the elastic valve core 67 inside the housing 64 can be switched, and this can be used to adjust the air path inside the top cover assembly 60.

[0063] In the unlocked state, as Figure 11As shown, the elastic valve core 67 opens the gas path between the first cavity 6413 and the second air outlet 6412. Thus, since the first cavity 6413 is in communication with the second air inlet 6411, the gas in the breathing circuit main body 30 can enter the first cavity 6413 through the second air inlet 6411, flow from the first cavity 6413 into the second air outlet 6412, and then flow from the second air outlet 6412 to the breathing circuit main body 30. Moreover, the elastic valve core 67 also blocks the gas path between the first cavity 6413 and the second cavity 6414 and blocks the gas path between the first air outlet 63 and the second air outlet 6412. When the soda lime canister 44 is not properly installed, that is, when the first air inlet 62 and the first air outlet 63 are not in communication with the soda lime canister 44, it prevents the gas in the first cavity 6413 from flowing out of the first air inlet 62 through the second cavity 6414 and prevents air from flowing from the first air outlet 63 to the second air outlet 6412, so that the gas path only circulates within the breathing circuit main body 30 and the top cover assembly 60.

[0064] In the locked state, as Figure 12 shown, the elastic valve core 67 blocks the gas path between the first cavity 6413 and the second air outlet 6412, preventing the air flow in the first cavity 6413 from directly flowing back to the breathing circuit through the second air outlet 6412. The elastic valve core 67 opens the gas path between the first cavity 6413 and the second cavity 6414 and opens the gas path between the first air outlet 63 and the second air outlet 6412. Thus, the air flow can enter the first cavity 6413 from the second air inlet 6411, then enter the second cavity 6414 and flow to the first air inlet 62. Since the soda lime canister 44 is properly installed in the locked state, the air flow can enter the first opening 4411 of the soda lime canister 44 from the first air inlet 62, enter the accommodation chamber 442 from the first opening 4411, and after the soda lime in the accommodation chamber 442 absorbs carbon dioxide, it flows into the first air outlet 63 from the second opening 4412 of the soda lime canister 44, then flows to the second air outlet 6412 through the first air outlet 63, and finally flows into the breathing circuit.

[0065] In one embodiment, as Figures 6 - 10 shown, the lifting assembly 43 includes a driving member 432 and a supporting member 433. Among them, the present application does not limit the driving member 432 to be manually driven or electrically driven. For example, in Figures 6 - 10 the embodiment, the driving member 432 is a manually driven part.

[0066] The driving member 432 is fixed to the fixing member 42. An installation position 431 is provided on the supporting member 433. The driving member 432 is used to move the supporting member 433 closer to or farther away from the top seat 50. As Figure 10 and Figure 13 shown, one of the fixing member 42 and the supporting member 433 is provided with a second guiding channel 421, and the other is provided with a guiding portion 4331. For example, inFigure 10 and Figure 13 In the embodiments of Figure 10 and Figure 13 , a second guiding channel 421 is provided on the fixing member 42, and the supporting member 433 has a guiding portion 4331. A part of the guiding portion 4331 is arranged in the second guiding channel 421, and the second guiding channel 421 cooperates with the guiding portion 4331 to enable the supporting member 433 to perform a linear reciprocating motion, so that the soda lime tank 44 can only move up and down under the action of the lifting assembly 43, preventing the soda lime tank 44 from shaking during the lifting process.

[0067] In one embodiment, the lifting assembly 43 further includes a transmission member 434. The transmission member 434 is fixedly connected to the driving member 432. The driving member 432 can rotate, and the transmission member 434 is used to convert the rotation of the driving member 432 into a linear motion of the supporting member 433. For example, in one embodiment, the driving member 432 is a handle, and the transmission member 434 is a cam. Specifically, an installation groove 422 is provided on one side of the fixing member 42 facing the top seat 50. A through hole 423 extending horizontally through the fixing member 42 is arranged in the installation groove 422. One end of the handle passes through the through hole 423 to fix the handle on the fixing member 42 and enable the handle to rotate relative to the through hole 423. The cam is arranged in the installation groove 422, and the cam is fixedly connected to the handle in the installation groove 422. Preferably, the handle passes through the cam and is relatively fixed to the cam. Therefore, when the handle rotates, the cam can rotate synchronously with the handle.

[0068] The side of the supporting member 433 facing the fixing member 42 has an abutting portion 4332, and the abutting portion 4332 abuts against the cam. Preferably, at least part of the outer contour of the abutting portion 4332 is in the form of an arc surface, and the abutting portion 4332 abuts against the cam through the arc surface. Of course, the present application does not limit the transmission member 434 to only the form of a cam, and any transmission member 434 that can convert the rotation of the driving member 432 into a linear motion of the supporting member 433 is acceptable. During the process of locking the soda lime tank 44, the handle is rotated to drive the cam to rotate. The distance between the contact point of the cam and the abutting portion 4332 and the rotation axis of the rotating handle gradually increases to drive the supporting member 433 to rise. When the central axis of the soda lime tank 44, the contact point of the cam and the abutting portion 4332, and the rotation center point of the cam are on the same straight line, the soda lime tank 44 reaches the locked state. During the stage of unlocking the soda lime tank 44, the handle is rotated in the reverse direction to drive the cam to rotate in the reverse direction. The distance between the contact point of the cam and the abutting portion 4332 and the rotation axis of the rotating handle gradually decreases, thereby driving the supporting member 433 to descend and enabling the soda lime tank 44 to reach the unlocked state.

[0069] In one embodiment, as Figure 14As shown, a first positioning portion 4311 is provided on the installation position 431, and a second positioning portion 443 is provided on the soda lime canister 44. The first positioning portion 4311 cooperates with the second positioning portion 443 to enable a unique relative position between the soda lime canister 44 and the installation position 431. Since the soda lime canister 44 has a first opening 4411 and a second opening 4412, and the two openings need to cooperate with the top cover assembly 60 in the locked state, it is necessary to accurately move the two openings to the corresponding positions. Moreover, the loading and unloading process of the soda lime canister 44 is operated by medical staff, and it is also necessary to simplify the loading and unloading process of the soda lime canister 44 to reduce the operation intensity of medical staff. In this embodiment, through the cooperation of the first positioning portion 4311 and the second positioning portion 443, the first positioning portion 4311 and the second positioning portion 443 can enable a unique relative position between the soda lime canister 44 and the installation position 431, so that the soda lime canister 44 is installed on the installation position 431 at a unique angle, ensuring that the soda lime canister 44 can cooperate with the top cover assembly 60 and ensuring quick placement during the operation of medical staff. Among them, the first positioning portion 4311 and the second positioning portion 443 can be, for example, in the form of a convex and a concave groove in cooperation. In addition, the first positioning portion 4311 and the second positioning portion 443 can also be in cooperation by means of magnetic attraction or the like.

[0070] The above uses specific examples to elaborate on the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. For those skilled in the technical field to which the present invention pertains, based on the idea of the present invention, several simple deductions, deformations or substitutions can also be made.

Claims

1. A soda lime tank device, characterized in that, Comprising: An installation component, the installation component includes a conductor component, a first conductive line and a second conductive line, the first conductive line and the second conductive line are arranged at intervals, and the first conductive line and the second conductive line are respectively used for electrically connecting with the circuit of the anesthesia machine main body; A fixing member, the installation component and the fixing member are arranged opposite to each other at intervals; A lifting component, the lifting component is arranged on the fixing member, and one side of the lifting component facing the installation component has an installation position; A soda lime canister, the soda lime canister is arranged at the installation position and is located between the installation component and the fixing member; The lifting component is used to drive the movement of the installation position, so that the soda lime canister approaches or moves away from the installation component, so that the conductor component moves, and switches the locking state and the unlocking state of the soda lime canister device; in the unlocking state, the soda lime canister is separated from the installation component, and the conductor component is disconnected from at least one of the first conductive line and the second conductive line, so that the first conductive line and the second conductive line are open-circuited; in the locking state, the soda lime canister abuts against the installation component, and the soda lime canister can communicate with the breathing circuit main body through the installation component, and the conductor component connects the first conductive line and the second conductive line under the thrust of the soda lime canister, so that the first conductive line and the second conductive line are electrically connected.

2. The soda lime tank device according to claim 1, wherein The conductor component includes a conductor and a first elastic member, and the installation component further includes a housing component, and the housing component is used for assembling the conductor component, the first conductive line and the second conductive line; the first elastic member abuts against the housing component and the conductor; in the locking state, the first elastic member has elastic potential energy capable of moving the conductor toward the side of the fixing member.

3. The soda lime tank device according to claim 2, characterized in that, A first guiding channel is provided in the housing component, and at least a part of the conductor is movably arranged in the first guiding channel; the first conductive line includes a first contact, and the second conductive line includes a second contact, and at least a part of the first contact and at least a part of the second contact are located in the first guiding channel; in the unlocking state, the conductor is disconnected from at least one of the first contact and the second contact, and in the locking state, the conductor abuts against the first contact and the second contact.

4. The soda lime tank device according to claim 3, characterized in that, The conductor includes a first part, a second part and a third part, the first guiding channel includes a first channel and a second channel, and the first channel and the second channel are arranged side by side at intervals; the first part and the first contact are arranged in the first channel, the second part and the second contact are arranged in the second channel, the third part is arranged outside the first channel and the second channel, and both ends of the third part are respectively connected to the first part and the second part.

5. The soda lime tank device according to claim 3, characterized in that, The first conductive circuit further includes a third contact and a first wire. Two ends of the first wire are respectively connected to the third contact and the first contact. The second conductive circuit further includes a fourth contact and a second wire. Two ends of the second wire are respectively connected to the fourth contact and the second contact. The third contact and the fourth contact are exposed on an outer surface of the housing assembly for being respectively electrically connected to contacts of the anesthesia machine main body.

6. The soda lime tank device according to claim 5, characterized in that, The mounting assembly further includes an insulating base having a first mounting cavity and a second mounting cavity which are spaced apart. One end of the first wire and the third contact are disposed in the first mounting cavity. One end of the second wire and the fourth contact are disposed in the second mounting cavity. A slot is provided on the outer surface of the housing assembly. The insulating base is mounted in the slot, and the third contact and the fourth contact are disposed opposite to an opening of the slot.

7. The soda lime tank device according to any one of claims 2-6, characterized in that, The housing assembly includes a top seat and a top cover assembly. The soda lime canister device further includes a connecting member. The top seat and the fixing member are oppositely disposed at intervals. Two ends of the connecting member are respectively connected to the top seat and the fixing member. The top seat is used for being fixed on the breathing circuit main body. The top cover assembly is fixed to a side of the top seat facing the fixing member.

8. The soda lime tank device according to claim 7, characterized in that, The top cover assembly includes a fixing seat and a cover body. The fixing seat is fixed on the top seat. The cover body is mounted on a side of the fixing seat facing the fixing member through a second elastic member. The first conductive circuit and the second conductive circuit are assembled on the fixing seat and the top seat. The conductor assembly is assembled on a side of the fixing seat facing the cover body, and the conductor abuts against the cover body. In the unlocked state, the cover body is separated from the fixing seat under the action of elastic potential energy of the second elastic member. In the locked state, the cover body abuts against the fixing seat under the thrust of the soda lime canister.

9. A breathing circuit device, characterized in that, It includes a breathing circuit main body and the soda lime canister device according to any one of claims 1-8, and the soda lime canister device is fixed on the breathing circuit main body.

10. An anesthetic machine, characterized in that, It includes an anesthesia machine main body and the breathing circuit device according to claim 9, and the breathing circuit main body is mounted on the anesthesia machine main body.

Images