Respiratory circuit system and anaesthesia machine

Abstract

The utility model discloses a kind of breathing circuit system and anaesthesia machine. Breathing circuit system includes breathing circuit assembly, flow sensor, connecting pipe assembly and drive assembly;Flow sensor is located at breathing circuit assembly and is communicated with the air passage of breathing circuit;Breathing circuit system is suitable for detachably connected to the main body of anaesthesia machine, drive assembly is connected to connecting pipe assembly and can drive connecting pipe assembly from first position switching to second position;When breathing circuit system is connected to the main body of anaesthesia machine, connecting pipe assembly can be switched to first position and be communicated between flow sensor and the flow calculation component of main body;After breathing circuit system is removed from the main body of anaesthesia machine, drive assembly can drive connecting pipe assembly from first position switching to second position, so that flow sensor can be separated from connecting pipe assembly. Position switching of connecting pipe assembly is realized by drive assembly, shortens the operation time of breathing circuit system disassembly, and efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and in particular relates to a breathing circuit system and anesthesia machine. Background Technology

[0002] During surgical anesthesia, the anesthesia machine needs to deliver anesthetic gas to the patient through the breathing circuit system. The flow sensor needs to be connected to the breathing circuit gas path and the main flow calculation component to monitor the gas flow. The ease of disassembly and assembly of the breathing circuit system is crucial to the efficiency of the anesthesia operation.

[0003] In the existing technology, when the breathing circuit system is removed from the main body of the anesthesia machine, the separation of the connecting tube and the flow sensor usually needs to be done manually, which is inefficient. Summary of the Invention

[0004] The technical problem to be solved by this utility model is: in the prior art, when the breathing circuit system is removed from the main body of the anesthesia machine, the separation of the connecting tube and the flow sensor usually needs to be done manually, which is inefficient. This utility model provides a breathing circuit system and anesthesia machine.

[0005] To address the aforementioned problems, this utility model provides a breathing circuit system, including a breathing circuit assembly, a flow sensor, a connecting tube assembly, and a drive assembly. The flow sensor is located on the breathing circuit assembly and is connected to the airway of the breathing circuit; The breathing circuit system is adapted to be detachably connected to the main body of the anesthesia machine, and the drive assembly is connected to the connecting tube assembly and is capable of driving the connecting tube assembly to switch from a first position to a second position; When the breathing circuit system is connected to the main body of the anesthesia machine, the connecting tube assembly can be switched to the first position and connected between the flow sensor and the flow calculation component of the main body; After the breathing circuit system is removed from the main body of the anesthesia machine, the drive component can drive the connecting tube assembly to switch from the first position to the second position, so that the flow sensor can be separated from the connecting tube assembly.

[0006] Optionally, the connecting pipe assembly includes a mounting base and a pipe body disposed on the mounting base. The pipe body is adapted to communicate with the flow calculation component of the main body. The driving component is connected to the mounting base. When the connecting pipe assembly is switched to the first position, the pipe body is connected between the flow sensor and the flow calculation component of the main body.

[0007] Optionally, the breathing circuit assembly is provided with a guide structure that extends in the vertical direction, and the mounting base is slidably connected to the guide structure.

[0008] Optionally, the guide structure is a first guide hole, the mounting base is fixedly provided with a first guide rod, the first guide rod extends in the vertical direction, and the first guide rod is slidably connected to the first guide hole; Alternatively, the guide structure may be a first guide rod, and the mounting base may be provided with a first guide hole, which extends in the vertical direction, and the first guide rod may be slidably connected to the first guide hole.

[0009] Optionally, the driving component is a first elastic element connected between the breathing circuit assembly and the mounting base, and the first elastic element has a tendency to drive the connecting tube assembly to move from the first position to the second position.

[0010] Optionally, the breathing circuit assembly has an internal accommodating space with an opening at the top. The connecting tube assembly is movably disposed in the accommodating space, and the opening allows the connecting tube assembly to switch between a first position and a second position.

[0011] According to the breathing circuit system provided in this embodiment, when the breathing circuit system is connected to the main body of the anesthesia machine, the connecting tube assembly switches to the first position. At this time, the connecting tube assembly precisely connects the flow sensor and the flow calculation component of the main body, forming a complete gas path monitoring channel. When the anesthetic gas in the breathing circuit assembly flows through the flow sensor, the gas flow data can be transmitted to the flow calculation component in real time through the connecting tube assembly, realizing dynamic monitoring of the anesthetic gas flow. When the breathing circuit system is removed from the main body of the anesthesia machine, the drive component actively drives the connecting tube assembly to switch from the first position to the second position. This position switch directly breaks the connection between the connecting tube assembly and the flow sensor. Without manual separation, the flow sensor and the connecting tube assembly can be automatically disconnected, clearing the gas path connection obstacle for the overall removal of the breathing circuit system. Compared with the existing technology that relies on manual separation of the connecting tube and the flow sensor, this method achieves automatic position switching of the connecting tube assembly through the drive component. This shortens the operation time for disassembling and assembling the breathing circuit system and improves efficiency. Meanwhile, the automatic separation method avoids problems such as improper insertion and removal force of connecting tubes and incomplete separation that may occur during manual operation, reduces the risk of gas leakage due to operational errors, ensures the stability of anesthetic gas delivery, reduces the potential impact on patient anesthesia safety, and further improves the reliability and standardization of anesthesia operation.

[0012] An anesthesia machine provided in this embodiment includes a main body and the above-mentioned breathing circuit system. The breathing circuit system is detachably connected to the main body, and the main body is provided with a flow calculation component. When the breathing circuit system is connected to the main body, the connecting tube assembly can be switched to the first position and connected between the flow sensor and the flow calculation component of the main body; When the breathing circuit system is removed from the main body, the drive component can drive the connecting tube assembly to switch from a first position to a second position, so that the flow sensor can be separated from the connecting tube assembly.

[0013] Optionally, the connecting tube assembly is detachably connected to the flow calculation component, and the connecting tube assembly can be separated from the flow calculation component when the breathing circuit system is removed from the main body.

[0014] Optionally, the breathing circuit system is provided with a flexible snap-fit ​​component, and the main body is provided with a snap-fit ​​groove, wherein the snap-fit ​​component is detachably snapped into the snap-fit ​​groove; The anesthesia machine also includes an operating component. The main body is provided with a mounting hole, which communicates with the slot. The operating component passes through the mounting hole and can abut against the snap-fit ​​component. Operating the operating component can cause the snap-fit ​​component to elastically deform, so that the snap-fit ​​component can disengage from the slot.

[0015] Optionally, the anesthesia machine further includes a second elastic element connected between the operating element and the main body, the second elastic element having a tendency to drive the operating element away from the latching element.

[0016] According to the anesthesia machine provided in this embodiment, when the breathing circuit system is installed on the main body of the anesthesia machine, the main body will exert a squeezing force on the connecting tube assembly. Under this force, the connecting tube assembly automatically switches from the initial state to the first position. At this time, the connecting tube assembly precisely connects the flow sensor in the breathing circuit system and the flow calculation component of the main body to form a complete gas path monitoring channel. When the anesthetic gas delivered by the breathing circuit system flows through the flow sensor, the flow signal can be transmitted to the flow calculation component in real time through the connecting tube assembly to ensure accurate monitoring of gas flow during anesthesia. When the breathing circuit system is removed, there is no need to manually separate the connecting tube and the flow sensor. The drive component will actively drive the connecting tube assembly to switch from the first position to the second position, cutting off the connection between the connecting tube assembly and the flow sensor, so that the two are automatically separated. Then the breathing circuit system can be smoothly disassembled from the main body. During the installation phase, the main body automatically connects the connecting tube assembly by squeezing it, eliminating the need for manual adjustment of the connecting tube position and shortening the installation time. During the removal phase, the drive assembly automatically separates the connecting tube assembly from the flow sensor, solving the problem of low efficiency in manual separation in existing technologies. It also avoids risks such as improper insertion or removal of the connecting tube and gas leakage that may be caused by manual operation. This ensures the stability of anesthetic gas delivery and flow monitoring, reduces the probability of component damage, and further improves the standardization of anesthesia operations and the safety of patients. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram showing the connection relationship between the breathing circuit system and the main body in one embodiment of this utility model; Figure 2 This is a schematic diagram of the structure of a breathing circuit system provided in one embodiment of the present invention; Figure 3 for Figure 2 A schematic diagram after removing part of the structure; Figure 4 for Figure 2 Another perspective; Figure 5 for Figure 4 A schematic diagram of the internal structure cut along line AA; Figure 6 for Figure 4 A schematic diagram of the internal structure cut along line BB; Figure 7 for Figure 1 Another perspective; Figure 8 for Figure 7 A schematic diagram of the internal structure cut along line DD; Figure 9 for Figure 8 A magnified view of D.

[0019] The reference numerals in the accompanying drawings are as follows: 1. Breathing circuit assembly; 11. Airway passage; 12. Accommodation space; 121. Opening; 13. Snap-fit ​​connector; 14. Slide groove; 15. Second guide post; 2. Flow sensor; 3. Connecting pipe assembly; 31. Mounting base; 32. Pipe body; 4. Driver components; 5. Main body; 51. Slot; 52. Mounting hole; 53. Second guide hole; 6. Guiding structure; 7. Operating components; 8. Second elastic element. Detailed Implementation

[0020] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] In the description of this utility model, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] like Figures 1 to 9 As shown, one embodiment of the present invention provides a breathing circuit system, including a breathing circuit assembly 1, a flow sensor 2, a connecting tube assembly 3, and a drive assembly 4; The flow sensor 2 is located on the breathing circuit assembly 1 and is connected to the airway 11 of the breathing circuit; The breathing circuit system is adapted to be detachably connected to the main body 5 of the anesthesia machine, and the drive assembly 4 is connected to the connecting tube assembly 3 and can drive the connecting tube assembly 3 to switch from a first position to a second position; When the breathing circuit system is connected to the main body 5 of the anesthesia machine, the connecting tube assembly 3 can be switched to the first position and connected between the flow sensor 2 and the flow calculation component of the main body 5; After the breathing circuit system is removed from the main body 5 of the anesthesia machine, the drive assembly 4 can drive the connecting tube assembly 3 to switch from the first position to the second position, allowing the flow sensor 2 to separate from the connecting tube assembly 3. The first position is the working position, meaning the position to which the connecting tube assembly 3 is moved by the main body 5 when the breathing circuit system is installed. In this position, the connecting tube assembly 3 connects the flow sensor 2 and the flow calculation component of the main body 5, forming a complete gas path to monitor the anesthetic gas flow rate. This is the gas path connection position to ensure the normal operation of the anesthesia machine. The second position is the separated position or the reset position. After the breathing circuit system is removed from the main body 5, the drive assembly 4 drives the connecting tube assembly 3 to reset to the second position, completely disconnecting the connecting tube assembly 3 from the flow sensor 2. This avoids gas leakage or component damage during disassembly and assembly, ensuring safe disassembly and assembly. Figure 1The main body 5 in the diagram is a schematic diagram, specifically a portion of the structure of the main body 5 located near the breathing circuit system. In this embodiment, the breathing circuit component 1, the flow sensor 2, and the flow calculation component on the anesthesia machine main body 5 involved in this application adopt existing mature structures, and this application does not modify the design of these core functional structures. Regarding the structural principles of the breathing circuit component 1, the flow sensor 2, and the flow calculation component on the anesthesia machine main body 5, existing published patents (e.g., CN118526684A, CN201184799Y, CN201840743U, CN204073011U, CN221535272U, etc.) have described in detail, and their technical solutions are well known to those skilled in the art. For example, the flow sensor 2 in this application is equivalent to the inspiratory differential pressure flowmeter or expiratory differential pressure flowmeter in CN221535272U, and the flow calculation component in this application is equivalent to the inspiratory differential pressure calculation module or expiratory differential pressure calculation module in CN221535272U. The breathing circuit assembly 1 of this application includes the mounting base 31, expiratory tube, and inspiratory tube as described in CN221535272U. Because the core structures of the breathing circuit assembly 1 and flow sensor 2 utilize existing mature designs, the stability and reliability of basic functions such as anesthetic gas delivery and flow monitoring remain unaffected, avoiding risks such as gas path leakage and flow monitoring errors that may arise from altering mature structures. This application addresses a pain point in the prior art—the need for manual separation of the connecting tube and flow sensor 2 during disassembly of the breathing circuit system, which is cumbersome and time-consuming. In contrast, this application, through the cooperation of the drive assembly 4 and the connecting tube assembly 3, allows the drive assembly 4 to directly drive the mounting base 31 to switch the tube body 32 from the first position to the second position after disassembly, achieving automatic separation of the tube body 32 and flow sensor 2 without manual intervention. This significantly shortens disassembly and assembly time, especially in scenarios such as equipment cleaning during surgical breaks and emergency circuit replacement, significantly reducing the operational steps for medical personnel and improving work efficiency. Meanwhile, the automatic separation method can also avoid problems such as component wear and seal failure caused by improper force when manually inserting or removing the tube 32, further ensuring the air circuit sealing and the safety of anesthesia operation.

[0024] like Figure 2 , Figure 3 , Figure 5 , Figure 6As shown, in one embodiment, the connecting pipe assembly 3 includes a mounting base 31 and a pipe body 32 disposed on the mounting base 31. The pipe body 32 is adapted to communicate with the flow calculation component of the main body 5. The driving component 4 is connected to the mounting base 31. When the connecting pipe assembly 3 is switched to the first position, the pipe body 32 is connected between the flow sensor 2 and the flow calculation component of the main body 5. A connector is provided on the pipe body 32 for communicating with the flow sensor 2. In this embodiment, the pipe body 32 is equivalent to the connecting pipe in the prior art. Based on the existing breathing circuit assembly 1, flow sensor 2 and flow calculation component, this structure can achieve automatic switching through the connecting pipe assembly 3 composed of the mounting base 31 and the pipe body 32, in conjunction with the driving component 4: during installation, the pipe body 32 can accurately connect the flow sensor 2 and the flow calculation component to ensure monitoring; during removal, the driving component 4 drives the mounting base 31 and the pipe body 32 to move, and the pipe body 32 and the flow sensor 2 can be separated without manual operation, which improves the efficiency of disassembly and assembly and avoids component damage or sealing problems caused by manual operation. The tube body 32 can be a silicone hose. When the silicone hose is connected to the flow sensor 2, the silicone hose is sleeved on the outside of the air outlet end of the flow sensor 2.

[0025] like Figure 6 As shown, in one embodiment, a guide structure 6 is provided on the breathing circuit assembly 1. The guide structure 6 extends in the vertical direction, and the mounting base 31 is slidably connected to the guide structure 6. The vertically extending guide structure 6 provides a precise sliding path for the mounting base 31, ensuring that the mounting base 31 does not deviate when it drives the tube body 32 to switch positions, thereby improving the stability and reliability of the overall structure operation. In one embodiment, the guide structure 6 is a first guide hole, and the mounting base 31 is fixedly provided with a first guide rod. The first guide rod extends in the vertical direction and is slidably connected to the first guide hole. Alternatively, the guide structure 6 can be a first guide rod, with a first guide hole on the mounting base 31 extending vertically, and the first guide rod slidably connected to the first guide hole. Both mating structures utilize the sliding fit between the first guide hole and the first guide rod to provide precise limits for the vertical sliding of the mounting base 31, preventing offset. This ensures stable connection of the tube 32 to the air path when switched to the first position, and also allows for smoother operation when the drive assembly 4 separates the tube 32, improving the reliability of the structure's operation.

[0026] like Figure 3 and Figure 6As shown, in one embodiment, the driving component 4 is a first elastic element connected between the breathing circuit assembly 1 and the mounting base 31. The first elastic element has a tendency to drive the connecting tube assembly 3 to move from a first position to a second position. When the breathing circuit system is installed on the anesthesia machine body 5, the structure above the body 5 will press down on the connecting tube assembly 3, overcoming the elastic force of the first elastic element, causing the connecting tube assembly 3 to slide from the initial state (tending to the second position due to the action of the elastic element) to the first position. At this time, the tube 32 on the mounting base 31 is precisely aligned with the flow sensor 2 and the flow calculation component of the body 5, forming a complete gas path and realizing real-time monitoring of the anesthetic gas flow. When the breathing circuit system is removed, the compression of the connecting tube assembly 3 by the body 5 is released, the first elastic element releases its elastic force, and the mounting base 31 drives the tube 32 to reset from the first position to the second position, automatically cutting off the connection with the flow sensor 2, completing the separation. Using the first elastic element as the driving component 4, the automatic reset and separation of the connecting tube assembly 3 can be achieved without an additional power source. The structure is simple and highly reliable. During installation, automatic docking is achieved by the compression of the main body 5, and automatic separation relies on the elastic force during disassembly. No manual operation is required throughout the process, improving assembly and disassembly efficiency and avoiding potential airway docking deviations or component damage that could result from manual intervention, thus ensuring operational safety and airway stability. Understandably, after the breathing circuit system is removed, the elastic force of the first elastic element is greater than the frictional force preventing the separation of the tube body 32 and the flow sensor 2, allowing the tube body 32 and the flow sensor 2 to separate.

[0027] like Figure 3 As shown, in one embodiment, the breathing circuit assembly 1 has an internal accommodating space 12, and the top of the accommodating space 12 has an opening 121. The connecting tube assembly 3 is movably disposed in the accommodating space 12, and the opening 121 allows the connecting tube assembly 3 to switch between a first position and a second position. The accommodating space 12 can provide storage and protection for the connecting tube assembly 3 to avoid external interference; the top opening 121 provides a channel for the connecting tube assembly 3 to switch positions up and down, ensuring smooth movement between the first and second positions, while saving structural space and improving the overall compactness of the layout.

[0028] like Figure 2 and Figure 3 As shown, in one embodiment, the breathing circuit assembly 1 is provided with a groove 14 extending in the front-to-back direction, and the main body 5 is provided with a slide rail corresponding to the groove 14. When the breathing circuit system is pulled out or inserted, the slide rail is slidably connected to the groove 14. The groove 14 and the slide rail increase the accuracy of pulling out or installing the breathing circuit system.

[0029] like Figure 2 , Figure 3 , Figure 6As shown, in one embodiment, the breathing circuit assembly 1 is provided with a second guide post 15, and the main body 5 is provided with a second guide hole 53 corresponding to the second guide post 15. When the breathing circuit system is pulled out and inserted, the second guide post 15 is slidably connected to the second guide hole 53. The arrangement of the second guide post 15 and the second guide hole 53 provides precise guidance for the breathing circuit assembly 1.

[0030] According to the breathing circuit system provided in this embodiment, when the breathing circuit system is connected to the anesthesia machine body 5, the connecting tube assembly 3 switches to the first position. At this time, the connecting tube assembly 3 precisely connects the flow sensor 2 and the flow calculation component of the body 5, forming a complete gas path monitoring channel. When the anesthetic gas in the breathing circuit assembly 1 flows through the flow sensor 2, the gas flow data can be transmitted to the flow calculation component in real time through the connecting tube assembly 3, realizing dynamic monitoring of the anesthetic gas flow. When the breathing circuit system is removed from the anesthesia machine body 5, the drive assembly 4 actively drives the connecting tube assembly 3 to switch from the first position to the second position. This position switch directly breaks the connection between the connecting tube assembly 3 and the flow sensor 2. Without manual separation, the flow sensor 2 and the connecting tube assembly 3 can be automatically disconnected, clearing the gas path connection obstacle for the overall removal of the breathing circuit system. Compared with the prior art that relies on manual separation of the connecting tube and the flow sensor 2, this method achieves automatic position switching of the connecting tube assembly 3 through the drive assembly 4. This shortens the operation time for disassembling and assembling the breathing circuit system and improves efficiency. Meanwhile, the automatic separation method avoids problems such as improper insertion and removal force of connecting tubes and incomplete separation that may occur during manual operation, reduces the risk of gas leakage due to operational errors, ensures the stability of anesthetic gas delivery, reduces the potential impact on patient anesthesia safety, and further improves the reliability and standardization of anesthesia operation.

[0031] like Figures 1-9 As shown in the figure, an anesthesia machine provided by this utility model embodiment includes a main body 5 and the above-mentioned breathing circuit system. The breathing circuit system is detachably connected to the main body 5, and the main body 5 is provided with a flow calculation component. When the breathing circuit system is connected to the main body 5, the connecting tube assembly 3 can be switched to the first position and connected between the flow sensor 2 and the flow calculation component of the main body 5; When the breathing circuit system is removed from the main body 5, the drive component 4 can drive the connecting tube assembly 3 to switch from the first position to the second position, allowing the flow sensor 2 to separate from the connecting tube assembly 3. By integrating the breathing circuit system with the main body 5, this anesthesia machine significantly improves overall operational efficiency and safety. During connection, the connecting tube assembly 3 automatically switches to the first position to achieve airway connectivity, ensuring accurate flow monitoring. During removal, the drive component 4 drives the connecting tube assembly 3 to automatically separate from the flow sensor 2, eliminating the need for manual operation. This reduces the number of steps required by medical personnel, shortens disassembly and assembly time, and avoids the risks of airway leakage and component damage that may result from manual separation. Furthermore, the detachable design of the breathing circuit system and the main body 5, combined with the automatic separation structure, makes equipment maintenance and cleaning more convenient, further enhancing the reliability and practicality of the anesthesia machine.

[0032] In one embodiment, the connecting tube assembly 3 is detachably connected to the flow calculation component, allowing the connecting tube assembly 3 to separate from the flow calculation component when the breathing circuit system is removed from the main body 5. It is understood that the connecting tube assembly 3 and the flow calculation component can be detachably connected by a sleeve-like arrangement. This detachable design allows the two components to separate synchronously with the change in position of the connecting tube assembly 3 when the breathing circuit system is removed, without requiring additional steps. This avoids damage to the flow calculation component or the connecting tube assembly 3 due to rigid pulling during separation, further simplifies the disassembly and assembly process, ensures the breathing circuit system can smoothly detach from the main body 5 as a whole, and improves operational convenience and equipment safety.

[0033] like Figure 1 , Figure 7-9 As shown, in one embodiment, the breathing circuit system is provided with a flexible snap-fit ​​member 13, and the main body 5 is provided with a snap-fit ​​groove 51, and the snap-fit ​​member 13 is detachably snapped into the snap-fit ​​groove 51. The anesthesia machine also includes an operating component 7. The main body 5 has a mounting hole 52 that communicates with a slot 51. The operating component 7 passes through the mounting hole 52 and abuts against the locking member 13. Operating the operating component 7 causes the locking member 13 to elastically deform, allowing it to detach from the slot 51. The engagement of the elastic locking member 13 with the slot 51 allows the breathing circuit system to be quickly and securely locked to the main body 5, ensuring connection stability and preventing loosening due to vibration during anesthesia. The operating component 7 abuts against the locking member 13 through the mounting hole 52; simply operating the operating component 7 causes the locking member 13 to elastically deform and detach from the slot 51, eliminating the need for laborious disassembly and significantly simplifying the disassembly process of the breathing circuit system and the main body 5, thus improving assembly and disassembly efficiency. Furthermore, this structure eliminates the need for complex locking components, reducing manufacturing costs and minimizing wear on components during assembly and disassembly through the cushioning effect of the elastic locking mechanism, ensuring equipment lifespan and operational safety.

[0034] like Figure 9 As shown, in one embodiment, the anesthesia machine further includes a second elastic element 8, which is connected between the operating element 7 and the main body 5. The second elastic element 8 has a tendency to drive the operating element 7 away from the locking element 13. After the operating element 7 completes the unlocking action (driving the locking element 13 out of the slot 51), the second elastic element 8 can automatically drive the operating element 7 to reset to its initial position away from the locking element 13, eliminating the need for manual repositioning of the operating element 7 and simplifying subsequent operation procedures. At the same time, the reset operating element 7 will not continuously press against the locking element 13, which can prevent the locking element 13 from being affected by long-term stress deformation, thus ensuring the sealing and stability of the locking element 13 and the slot 51 when they re-engage, and further improving the reliability and service life of the overall structure of the anesthesia machine.

[0035] According to the anesthesia machine provided in this embodiment, when the breathing circuit system is installed on the main body 5 of the anesthesia machine, the main body 5 will exert a squeezing force on the connecting tube assembly 3. Under this force, the connecting tube assembly 3 will automatically switch from the initial state to the first position. At this time, the connecting tube assembly 3 is precisely connected to the flow sensor 2 in the breathing circuit system and the flow calculation component of the main body 5, forming a complete gas path monitoring channel. When the anesthetic gas delivered by the breathing circuit system flows through the flow sensor 2, the flow signal can be transmitted to the flow calculation component in real time through the connecting tube assembly 3, ensuring accurate monitoring of gas flow during anesthesia. When the breathing circuit system is removed, there is no need to manually separate the connecting tube and the flow sensor 2. The drive component 4 will actively drive the connecting tube assembly 3 to switch from the first position to the second position, cutting off the connection between the connecting tube assembly 3 and the flow sensor 2, so that the two are automatically separated. Then the breathing circuit system can be smoothly disassembled from the main body 5. During the installation phase, the main body 5 automatically connects the connecting tube assembly 3 by squeezing it, eliminating the need for manual adjustment of the connecting tube position and shortening the installation time. During the removal phase, the drive assembly 4 automatically separates the connecting tube assembly 3 from the flow sensor 2, solving the problem of low efficiency in manual separation in existing technologies. It also avoids risks such as improper insertion or removal of the connecting tube and gas leakage that may be caused by manual operation. This ensures the stability of anesthetic gas delivery and flow monitoring, reduces the probability of component damage, and further improves the standardization of anesthesia operations and the safety of patients.

[0036] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A breathing circuit system, characterized in that, Includes breathing circuit assembly, flow sensor, connecting tube assembly and drive assembly; The flow sensor is located on the breathing circuit assembly and is connected to the air passage of the breathing circuit; The breathing circuit system is adapted to be detachably connected to the main body of the anesthesia machine, and the drive component is connected to the connecting tube assembly and is capable of driving the connecting tube assembly to switch from a first position to a second position; When the breathing circuit system is connected to the main body of the anesthesia machine, the connecting tube assembly can be switched to the first position and connected between the flow sensor and the flow calculation component of the main body; After the breathing circuit system is removed from the main body of the anesthesia machine, the drive component can drive the connecting tube assembly to switch from the first position to the second position, so that the flow sensor can be separated from the connecting tube assembly.

2. The breathing circuit system according to claim 1, characterized in that, The connecting pipe assembly includes a mounting base and a pipe body disposed on the mounting base. The pipe body is adapted to communicate with the flow calculation component of the main body. The driving component is connected to the mounting base. When the connecting pipe assembly is switched to the first position, the pipe body is connected between the flow sensor and the flow calculation component of the main body.

3. The breathing circuit system according to claim 2, characterized in that, The breathing circuit assembly is provided with a guide structure that extends in the vertical direction, and the mounting base is slidably connected to the guide structure.

4. The breathing circuit system according to claim 3, characterized in that, The guide structure is a first guide hole, and the mounting base is fixedly provided with a first guide rod. The first guide rod extends in the vertical direction and is slidably connected to the first guide hole. Alternatively, the guide structure may be a first guide rod, and the mounting base may be provided with a first guide hole, which extends in the vertical direction, and the first guide rod may be slidably connected to the first guide hole.

5. The breathing circuit system according to claim 2, characterized in that, The driving component is a first elastic element, which is connected between the breathing circuit assembly and the mounting base. The first elastic element has a tendency to drive the connecting tube assembly to move from the first position to the second position.

6. The breathing circuit system according to claim 1, characterized in that, The breathing circuit assembly has an internal accommodating space with an opening at the top. The connecting tube assembly is movably disposed within the accommodating space, and the opening allows the connecting tube assembly to switch between a first position and a second position.

7. An anesthesia machine, characterized in that, The invention comprises a main body and a breathing circuit system according to any one of claims 1 to 6, wherein the breathing circuit system is detachably connected to the main body, and the main body is provided with a flow calculation component; When the breathing circuit system is connected to the main body, the connecting tube assembly can be switched to the first position and connected between the flow sensor and the flow calculation component of the main body; When the breathing circuit system is removed from the main body, the drive component can drive the connecting tube assembly to switch from a first position to a second position, so that the flow sensor can be separated from the connecting tube assembly.

8. The anesthesia machine according to claim 7, characterized in that, The connecting tube assembly is detachably connected to the flow calculation component, and the connecting tube assembly can be separated from the flow calculation component when the breathing circuit system is removed from the main body.

9. The anesthesia machine according to claim 7, characterized in that, The breathing circuit system is provided with a flexible snap-fit ​​component, and the main body is provided with a snap-fit ​​slot, and the snap-fit ​​component is detachably snapped into the snap-fit ​​slot; The anesthesia machine also includes an operating component. The main body is provided with a mounting hole, which communicates with the slot. The operating component passes through the mounting hole and can abut against the snap-fit ​​component. Operating the operating component can cause the snap-fit ​​component to elastically deform, so that the snap-fit ​​component can disengage from the slot.

10. The anesthesia machine according to claim 9, characterized in that, The anesthesia machine also includes a second elastic element connected between the operating element and the main body, the second elastic element having a tendency to drive the operating element away from the locking element.

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