Switching device for anesthesia machine
By designing the connecting body and collector structure of the adapter device, the problem of water vapor accumulation exhaled by the patient is solved, the accuracy and life of the gas monitoring module are ensured, and efficient water vapor collection and gas drying are achieved.
Patent Information
- Application Number
- CN202421742623.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-23
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-07-23
AI Technical Summary
In the prior art, water vapor in the exhaled gas accumulated in the adapter device, affecting the service life and monitoring accuracy of the gas module monitoring module.
An adapter device is designed, including connecting the main body and the collector, and a first channel and a second channel are provided in the main body. The collector is used to collect water vapor in the exhaled air of the human body. The first channel and the second channel are connected through the inner cavity of the collector. The exhaled gas from the human body condenses into water and flows to the bottom in the collector to prevent water vapor from entering the gas circuit monitoring module.
It effectively removes the water vapor from the human body's exhalation, ensures the monitoring accuracy and service life of the gas circuit monitoring module, and prevents the impact of water vapor on the monitoring module.
Smart Images
Figure CN223041953U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of medical devices, and in particular to a switching device for an anesthesia machine. Background Art
[0002] When performing a larger operation, the patient needs to be given general anesthesia, and respiratory anesthesia is currently the most commonly used anesthesia method. During anesthesia, the gas outlet of the respiratory anesthesia machine forms a loop with the patient's respiratory tract to deliver fresh gas and inhaled anesthetics into the patient's respiratory tract, and expel the patient's exhaled gas out of the body.
[0003] In respiratory anesthesia, gas module monitoring is more common in anesthesia. The concentration of anesthetic gas in the patient's breathing gas is closely related to the patient's anesthesia depth and physiological function interference. Monitoring the concentration of anesthetic gas is of great significance for guiding anesthesia implementation and improving anesthesia safety.
[0004] At present, the monitoring end of the gas module needs to be connected to the patient end through an adapter. During this process, the gas exhaled by the patient end will contain water vapor. Long-term use will cause water accumulation in the flow channel of the adapter. The accumulated water will flow along the flow channel to the monitoring end of the gas module, affecting the service life of the module and the monitoring accuracy. Utility Model Content
[0005] In order to overcome the problems existing in the related art, this specification provides a switching device for an anesthesia machine, which can remove water vapor in human exhaled air and prevent the water vapor from affecting the gas path monitoring module.
[0006] According to a first aspect of the present disclosure, a switching device for an anesthesia machine is provided, wherein the anesthesia machine includes a gas circuit monitoring module, including:
[0007] A connecting body, comprising a first connecting port and a second connecting port, wherein the first connecting port is used to connect to a human body, and the second connecting port is used to connect to the gas path monitoring module;
[0008] A collector, used to collect water vapor in human exhaled breath, the collector being connected to one side of the connecting body and located between the first connecting port and the second connecting port;
[0009] The connection body is provided with a first channel communicating with the first connection port and a second channel communicating with the second connection port, and the first channel and the second channel are communicated through the inner cavity of the collector.
[0010] In some exemplary embodiments of the present disclosure, the first connection port and the second connection port are arranged along a first direction, and the collector is connected to one side of the connection body in a second direction, where the second direction is perpendicular to the first direction.
[0011] In some exemplary embodiments of the present disclosure, the first channel includes a first sub-channel and a second sub-channel that are connected to each other. The first sub-channel extends along the first direction. One end opening of the first sub-channel is the first connection port, and the other end opening of the first sub-channel bends towards the inside of the collector and extends to form the second sub-channel.
[0012] In some exemplary embodiments of the present disclosure, the second sub-channel is perpendicular to the first sub-channel.
[0013] In some exemplary embodiments of the present disclosure, the second channel extends along the first direction, and the second channel is coaxially arranged with the first sub-channel.
[0014] In some exemplary embodiments of the present disclosure, the connection body further includes a partition board. The partition board is located between the first channel and the second channel and is used to separate the first channel and the second channel. At least part of the area of the partition board is located inside the collector.
[0015] In some exemplary embodiments of the present disclosure, the collector is a hollow structure with an open top. The hollow structure forms a collection cavity. The distance between the central axis of the collection cavity and the first connection port in the first direction is less than the distance between the central axis of the collection cavity and the second connection port in the first direction, and the central axis of the collection cavity is parallel to the second direction.
[0016] In some exemplary embodiments of the present disclosure, the inner cavity of the collector is a U-shaped cavity.
[0017] In some exemplary embodiments of the present disclosure, a sealing ring is provided at the connection between the collector and the connection body, and the collector and the connection body are detachably connected.
[0018] In some exemplary embodiments of the present disclosure, the cross-sections of each part of the first channel and the second channel are all circular.
[0019] The technical solutions provided by the present disclosure may include the following beneficial effects:
[0020] The adapter device provided by the present disclosure has a first connection port of the connection body for connecting to the human body, and a second connection port for connecting to the gas path monitoring module of the anesthesia machine. The first channel and the second channel communicate through the inner cavity of the collector. The gas exhaled by the human body enters the inner cavity of the collector after passing through the first channel, and then is output to the gas path monitoring module through the second channel and the second connection port. In this way, the gas exhaled by the human body will stay in the collector for a certain period of time. During this process, the water vapor in the exhaled breath will condense into water in the collector and flow down the side wall of the collector to the bottom of the collector, thus completing the collection of the water vapor in the human exhaled breath. After the collector collects the water vapor, the gas transported in the second channel basically does not contain water vapor. Therefore, when it is transported to the gas path monitoring module, it will not affect the gas path monitoring module, so as to ensure the monitoring accuracy and service life of the gas path monitoring module.
[0021] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit this specification. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] The drawings herein are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with this specification, and are used together with the specification to explain the principles of this specification.
[0023] Figure 1 is a schematic structural diagram of the adapter device in an exemplary embodiment of the present disclosure;
[0024] Figure 2 is an exploded view of the adapter device in an exemplary embodiment of the present disclosure;
[0025] Figure 3 is a schematic structural diagram of the connection body in an exemplary embodiment of the present disclosure;
[0026] Figure 4 is a cross-sectional view of the adapter device in an exemplary embodiment of the present disclosure.
[0027] DESCRIPTION OF THE REFERENCE NUMERALS
[0028] 100 - connection body; 110 - first connection port; 120 - second connection port; 130 - first channel; 131 - first sub-channel; 132 - second sub-channel; 140 - second channel; 150 - partition board; 160 - third connection port; 200 - collector; 210 - collection cavity; 300 - sealing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0029] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. Like reference numerals in the figures denote like or similar structures, and thus their detailed description will be omitted. In addition, the drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale.
[0030] Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of an icon to another component, these terms are used in this specification only for convenience, for example, according to the directions of the examples described in the drawings. It can be understood that if the device of the icon is turned upside down, the component described as "upper" will become the component described as "lower". When a structure is "on" another structure, it may mean that a structure is integrally formed on another structure, or that a structure is "directly" disposed on another structure, or that a structure is "indirectly" disposed on another structure through another structure.
[0031] The terms "a", "an", "the", "said" and "at least one" are used to indicate the existence of one or more elements / components / etc.; the terms "comprising" and "having" are used to mean an open inclusion and mean that there may be additional elements / components / etc. in addition to the listed elements / components / etc.; the terms "first", "second", "third", etc. are used only as labels and are not a limitation on the quantity of their objects.
[0032] In the present disclosure, terms such as "vertical" and "equal" refer to vertical and equal within the process error range, not vertical and equal in an absolute sense. The process error can be within ±10% or within ±5%. For example, if the first direction and the second direction are perpendicular, it can be understood that the included angle between the first direction and the second direction can be 90°±5°.
[0033] When performing respiratory anesthesia on a patient, it is necessary to monitor the gas exhaled by the patient. Specifically, by monitoring the concentration of the anesthetic in the exhaled gas, it can be confirmed that the patient is in a safe state while achieving the anesthetic effect. In the related art, an anesthesia machine usually includes a gas monitoring module, and this module can be used to complete the monitoring of the gas exhaled by the patient. The gas exhaled by the patient can enter the gas monitoring module after passing through a transfer pipeline. Since the gas exhaled by the human body contains water vapor, and the transfer pipeline is usually narrow and does not have a water vapor collection function, therefore, as the use time increases, the water vapor in the transfer pipeline accumulates more and more, and even flows into the gas monitoring module along the pipeline, affecting the service life and monitoring accuracy of the gas monitoring module.
[0034] Based on this, as Figures 1 to 4As shown, an embodiment of the present disclosure provides an adapter device for an anesthesia machine. The anesthesia machine includes a gas path monitoring module. The adapter device includes a connection body 100 and a collector 200. Among them, the connection body 100 includes a first connection port 110 and a second connection port 120. The first connection port 110 is used to connect to the human body, and the second connection port 120 is used to connect to the gas path monitoring module. The collector 200 is used to collect the water vapor in the human exhaled breath. The collector 200 is connected to one side of the connection body 100 and is located between the first connection port 110 and the second connection port 120. A first channel 130 communicating with the first connection port 110 and a second channel 140 communicating with the second connection port 120 are provided in the connection body 100. The first channel 130 and the second channel 140 are connected through the inner cavity of the collector 200.
[0035] For the adapter device provided by the present disclosure, the first connection port 110 of the connection body 100 is used to connect to the human body, the second connection port 120 is used to connect to the gas path monitoring module of the anesthesia machine, and the first channel 130 and the second channel 140 are connected through the inner cavity of the collector 200. The gas exhaled by the human body enters the inner cavity of the collector 200 after passing through the first channel 130, and then is output to the gas path monitoring module through the second channel 140 and the second connection port 120. In this way, the gas exhaled by the human body will stay in the collector 200 for a certain period of time. During this process, the water vapor in the exhaled breath will condense into water in the collector 200 and flow down the side wall of the collector 200 to the bottom of the collector 200, thereby completing the collection of the water vapor in the human exhaled breath. After the collector 200 collects the water vapor, the gas transported in the second channel 140 basically does not contain water vapor. Therefore, when it is transported to the gas path monitoring module, it will not affect the gas path monitoring module, so as to ensure the monitoring accuracy and service life of the gas path monitoring module.
[0036] Next, each part of the adapter device provided by the embodiments of the present disclosure will be described in detail with reference to the drawings:
[0037] As Figures 1 to 4 shown, the adapter device provided by the present disclosure can be used for an anesthesia machine, and the anesthesia machine includes a gas path monitoring module. The adapter device can be used to complete the transfer between the gas path monitoring module and the human body, and remove the water vapor from the gas exhaled by the human body and then transport it to the gas path monitoring module. The adapter device includes a connection body 100 and a collector 200. Among them, the connection body 100 is mainly used to connect the human body and the gas path monitoring module, and the collector 200 is mainly used to complete the collection of the water vapor in the human exhaled breath.
[0038] The connection body 100 includes a first connection port 110 and a second connection port 120, wherein the first connection port 110 is used to connect to the human body, and the second connection port 120 is used to connect to the gas circuit monitoring module. The shapes of the first connection port 110 and the second connection port 120 are not limited and can be set according to the actual connection requirements of the human body and the anesthesia machine. Optionally, the first connection port 110 and the second connection port 120 are arranged along the first direction, and the caliber of the first connection port 110 is generally larger than the caliber of the second connection port 120 to ensure that the gas exhaled by the human body can be completely delivered to the gas circuit monitoring module through the adapter.
[0039] Furthermore, the connection body 100 is provided with a first channel 130 communicating with the first connection port 110 and a second channel 140 communicating with the second connection port 120. The first channel 130 is used to transport the exhaled gas of the human body to the collector 200, and the second channel 140 is used to transport the gas in the collector 200 to the gas path monitoring module.
[0040] The collector 200 is connected to one side of the connection body 100 and is located between the first connection port 110 and the second connection port 120. The collector 200 can be connected to one side of the connection body 100 in the second direction, and the second direction is perpendicular to the first direction. The connection body 100 also includes a third connection port 160, which is located between the first connection port 110 and the second connection port 120, and the collector 200 can be connected to the third connection port 160.
[0041] The first channel 130 and the second channel 140 in the connecting body 100 are connected through the inner cavity of the collector 200. It should be noted that the present disclosure limits the first channel 130 and the second channel 140 to be connected through the inner cavity of the collector 200, which means that the first channel 130 and the second channel 140 cannot be directly connected, that is, they cannot be a whole straight channel. Figure 4 As shown, the connecting body 100 also includes a blocking plate 150, which is located between the first channel 130 and the second channel 140, and is used to separate the first channel 130 and the second channel 140 to avoid direct connection between the first channel 130 and the second channel 140, thereby preventing the exhaled gas of the human body from being directly output from the second channel 140 after passing through the first channel 130.
[0042] like Figure 3 and Figure 4As shown, in some embodiments of the present disclosure, the first channel 130 may be a bent channel. Optionally, the first channel 130 includes a first sub-channel 131 and a second sub-channel 132 that are connected to each other. The first sub-channel 131 extends in a first direction. One end opening of the first sub-channel 131 is a first connection port 110, and the other end opening of the first sub-channel 131 bends towards the inside of the collector 200 and extends to form the second sub-channel 132. The extending direction of the second sub-channel 132 has an angle with the extending direction of the first sub-channel 131, and this angle may be 60° - 150°. Preferably, the second sub-channel 132 is perpendicular to the first sub-channel 131, that is, the second sub-channel 132 extends in a second direction. The second sub-channel 132 may be located inside the inner cavity of the collector 200 to ensure that the exhaled gas from the human body can smoothly enter the inner cavity of the collector 200. Correspondingly, at least a partial area of the partition plate 150 of the connection body 100 is also located inside the inner cavity of the collector 200.
[0043] The bent channel has a larger surface area. When the exhaled gas from the human body passes through the bent channel, due to the shape and structure of the bent channel, the gas will encounter a condensation surface at the bend, causing water vapor to condense into liquid and flow from the inner surface of the channel into the collector 200. In addition, the bent channel can also provide a longer path for the gas to stay in the channel for a longer time. In this way, there is more chance for the water vapor in the exhaled breath to condense and be effectively collected, so as to ensure that the exhaled breath is as dry as possible after passing through the first channel 130 and the collector 200, avoiding water vapor from entering the gas monitoring module, and thus ensuring the accuracy and stability of the monitoring module.
[0044] The second channel 140 may be a straight channel or a bent channel. Preferably, the second channel 140 is a straight channel. The straight channel can enable the gas after removing water vapor to quickly enter the gas monitoring module, ensuring the timeliness and sensitivity of the monitoring. The second channel 140 may extend in the first direction. Further, the second channel 140 may also be coaxially arranged with the first sub-channel 131, but is not limited thereto.
[0045] In some embodiments of the present disclosure, the cross-sections of each part of the first channel 130 and the second channel 140 are circular. In the channel, due to the temperature difference between the water vapor contained in the human exhaled breath and the inside of the channel, the water vapor is easily cooled and condensed into water droplets. The design of the circular channel can make the water vapor more evenly distributed inside the channel. Except for the bends of the channel, the possibility of water vapor condensing in other areas of the channel can be reduced, ensuring that most of the water vapor will enter the collector 200 and will not stay in the channel.
[0046] In some embodiments of the present disclosure, the collector 200 is a hollow structure with an open top. The hollow structure forms a collection chamber 210. The distance L1 between the central axis of the collection chamber 210 and the first connection port 110 in the first direction is less than the distance L2 between the central axis of the collection chamber 210 and the second connection port 120 in the first direction. The central axis of the collection chamber 210 is parallel to the second direction. The collector 200 is closer to the first connection port 110, which can reduce the probability of water vapor being condensed and staying in the first channel 130, so that more water vapor can be collected by the collector 200, improving the collection rate of water vapor in exhaled breath and further reducing the impact of water vapor on the gas monitoring module.
[0047] Optionally, the inner cavity of the collector 200 is a U-shaped cavity. The inner cavity of the collector 200 adopts a U-shaped design, which is convenient for the condensation and collection of water vapor in human exhaled breath. When the gas exhaled by a human enters the collector 200, due to the special shape of the U-shaped cavity, the exhaled breath will encounter a lower temperature, causing the water vapor therein to condense. The condensed water vapor will gradually condense into water droplets along the inner cavity surface of the collector 200 and flow downward along the cavity wall. The U-shaped cavity design enables the water vapor to be effectively condensed in the collector 200 and flow to the bottom without staying or spreading in the inner cavity for a long time. This design ensures the smooth collection of water vapor and prevents the backflow or overflow of water vapor. In addition, the U-shaped cavity can increase the volume of the collector 200, enabling it to collect more water vapor and improving the collection efficiency. Through the U-shaped cavity design of the collector 200, the water vapor in human exhaled breath can be efficiently condensed and collected, thereby reducing the emission of water vapor and reducing the impact on the gas monitoring module in the anesthesia machine. At the same time, the U-shaped cavity design can also ensure the easy cleaning and maintainability of the collector 200, facilitating daily use and maintenance.
[0048] Optionally, as Figure 2 and Figure 4 shown, a sealing ring 300 is provided at the connection between the collector 200 and the connection body 100, and the collector 200 and the connection body 100 are detachably connected. The sealing ring 300 design helps to avoid the leakage of the gas exhaled by a human. The detachable connection facilitates the cleaning and maintenance of the collector 200.
[0049] Specifically, the collector 200 and the connection body 100 can be connected by means of threads, snap-fits, etc., or can be an interference fit. For example, through a sliding fit, there is a certain amount of interference between the outer diameter of the collector 200 and the inner diameter of the third connection port 160 to achieve a tight connection and facilitate disassembly and repair when needed. Optionally, an elastic ring can be sleeved around the periphery of the port of the collector 200, which has a certain deformation ability. When it is inserted into the third connection port 160, a tight connection between the collector 200 and the connection body 100 can be achieved. When it is necessary to disassemble the collector 200, the collector 200 can be manually pulled out from the third connection port 160.
[0050] Those skilled in the art will readily conceive of other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common general knowledge or conventional technical means in the technical field not disclosed in the present disclosure. The specification and examples are only regarded as exemplary, and the true scope and spirit of the present disclosure are pointed out by the appended claims.
Claims
1. A switching device for an anesthesia machine, the anesthesia machine comprising a gas circuit monitoring module, characterized in that: The switching device comprises: A connecting body, comprising a first connecting port and a second connecting port, wherein the first connecting port is used to connect to a human body, and the second connecting port is used to connect to the gas path monitoring module; A collector, used to collect water vapor in human exhaled breath, the collector being connected to one side of the connecting body and located between the first connecting port and the second connecting port; The connection body is provided with a first channel communicating with the first connection port and a second channel communicating with the second connection port, and the first channel and the second channel are communicated through the inner cavity of the collector.
2. The switching device according to claim 1, characterized in that: The first connection port and the second connection port are arranged along a first direction, and the collector is connected to one side of the connection body in a second direction, and the second direction is perpendicular to the first direction.
3. The switching device according to claim 2, characterized in that: The first channel includes a first sub-channel and a second sub-channel connected to each other, the first sub-channel extends along the first direction, one end opening of the first sub-channel is the first connection port, and the other end opening of the first sub-channel is bent toward the collector and extends to form the second sub-channel.
4. The switching device according to claim 3, characterized in that: The second sub-channel is perpendicular to the first sub-channel.
5. The switching device according to claim 3, characterized in that: The second channel extends along the first direction, and the second channel is coaxially arranged with the first sub-channel.
6. The switching device according to claim 1, characterized in that: The connection body further includes a baffle plate, which is located between the first channel and the second channel and is used to separate the first channel and the second channel. At least a portion of the baffle plate is located in the collector.
7. The switching device according to claim 2, characterized in that: The collector is a hollow structure with an opening at the top, and the hollow structure forms a collecting chamber. The distance between the central axis of the collecting chamber and the first connecting port in the first direction is smaller than the distance between the central axis of the collecting chamber and the second connecting port in the first direction, and the central axis of the collecting chamber is parallel to the second direction.
8. The switching device according to any one of claims 1 to 7, characterized in that: The inner cavity of the collector is a U-shaped cavity.
9. The switching device according to any one of claims 1 to 7, characterized in that: A sealing ring is provided at the connection between the collector and the connection body, and the collector and the connection body are detachably connected.
10. The switching device according to any one of claims 1 to 7, characterized in that: The cross sections of the first channel and the second channel are all circular.