Anesthesia machine tubing elbow

Abstract

The application relates to the technical field of medical apparatus and instruments, in particular to an anesthesia machine pipeline elbow, which comprises an elbow pipe, a first operation joint and an annular air bag. The first operation joint is arranged on the outer circumferential surface of the elbow pipe wall and communicates with the elbow pipe, and is used for providing an intervention channel for external medical instruments to enter the inside of the elbow pipe. The annular air bag is arranged on the inner wall of the first operation joint, can be inflated and expanded, and the expansion degree of the annular air bag is negatively correlated with the opening degree of the intervention channel. In the application, the annular air bag is arranged on the inner wall of the first operation joint, can be inflated and expanded after inflation, can closely adhere to the outer wall of the external medical instrument, and the sealing property is improved. The design effectively prevents gas leakage and ensures the stability and safety of the patient's respiratory system. The expansion degree of the annular air bag is adjustable, so that the size of the intervention channel also changes.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and more specifically, to an anesthesia machine tubing elbow. Background Technology

[0002] Currently, painless fiberoptic bronchoscopy has become a routine clinical procedure. This process requires an anesthesiologist to administer intravenous anesthetic to achieve a certain depth of anesthesia in the patient, followed by the insertion of an artificial airway, such as a laryngeal mask or endotracheal tube, to ensure continuous ventilation. The design of the external interface connector of the artificial airway is particularly critical. It must not only connect tightly to the anesthesia machine or high-frequency jet ventilator to ensure continuous ventilation, but also provide a dedicated examination port for bronchoscope operators to use external medical instruments such as the fiberoptic bronchoscope.

[0003] However, existing diagnostic connectors with operating ports have significant shortcomings. Since different outer diameter fiberoptic bronchoscopes may be needed during the same examination to achieve different diagnostic and treatment purposes, the operating port diameter of silicone diagnostic connectors is fixed. This leads to air leakage from thin fiberoptic bronchoscopes, affecting ventilation; while thicker fiberoptic bronchoscopes offer greater resistance when entering and exiting the airway, increasing the difficulty of operation for doctors and causing discomfort for patients. Utility Model Content

[0004] The purpose of this application is to provide an anesthesia machine tubing elbow that can accommodate external medical devices of different sizes while ensuring an airtight seal.

[0005] To achieve the above objectives, this utility model provides an anesthesia machine tubing elbow, comprising:

[0006] pipe bend;

[0007] A first operating connector is disposed on the outer circumferential surface of the bend wall and communicates with the bend. The first operating connector is used to provide an intervention channel for external medical devices to enter the interior of the bend.

[0008] An annular airbag is disposed on the inner wall of the first operating joint. The annular airbag can be inflated, and the degree of inflation of the annular airbag is negatively correlated with the degree of opening of the intervention channel.

[0009] In an optional implementation, it further includes:

[0010] A pressurization port is connected to the annular airbag, through which external compressed gas enters the annular airbag.

[0011] In an optional implementation, it further includes:

[0012] A safety indicator airbag, wherein the safety indicator airbag is connected to and detachably connected to the annular airbag, the air pressure inside the safety indicator airbag is the same as the air pressure inside the annular airbag, the safety indicator airbag ruptures when the air pressure inside the safety indicator airbag exceeds a first rated pressure value, and the annular airbag ruptures when the air pressure inside the safety indicator airbag exceeds a second rated pressure value, wherein the first rated pressure value is less than the second rated pressure value.

[0013] The pressurization port is located on the safety indicator airbag.

[0014] In an optional implementation, it further includes:

[0015] A safety valve is connected to the annular airbag. When the air pressure inside the annular airbag is greater than or equal to the second rated air pressure value, the safety valve opens, allowing the compressed gas in the annular airbag to be discharged from the safety valve. When the air pressure inside the annular airbag drops and is less than the second rated air pressure value, the safety valve closes.

[0016] In an optional implementation, it further includes:

[0017] An air source is connected to the annular airbag and provides compressed gas to the annular airbag.

[0018] In an optional embodiment, the annular airbag includes at least two sub-airbags, which are circumferentially distributed around the inner wall of the intervention channel, and the sub-airbags are individually inflatable.

[0019] In an optional embodiment, the annular airbag is a one-piece molded annular bladder.

[0020] In an optional implementation, it further includes:

[0021] A first end cap is detachably mounted on the opening of the first operating connector, and the first end cap is used to seal the opening of the first operating connector.

[0022] In an optional implementation, it further includes:

[0023] The second operating connector is disposed on the bend and is connected to the bend.

[0024] In an optional implementation, it further includes:

[0025] A second end cap is detachably mounted on the opening of the second operating connector and is used to seal the opening of the second operating connector.

[0026] In this application, by inflating an annular balloon on the inner wall of the first operating connector, a tight seal against the outer wall of the external medical device is achieved, thus improving the airtightness. This design effectively prevents gas leakage, ensuring the stability and safety of the patient's respiratory system. The adjustable inflation degree of the annular balloon allows for variations in the size of the interventional channel. This adjustability enables the anesthetic tubing bend to accommodate external medical devices of different sizes, such as fiberoptic bronchoscopes with different radial cross-sections. This improves the versatility and flexibility of the device. When using external medical devices with larger radial cross-sections, reducing the inflation degree of the annular balloon decreases the friction between the outer wall of the fiberoptic bronchoscope and the inner wall of the annular balloon, making operation more convenient and improving maneuverability. Optimizing the airtightness by adjusting the inflation degree of the annular balloon reduces patient breathing problems and other potential risks caused by poor sealing. This design enhances the safety and reliability of the medical device.

[0027] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 A schematic diagram of the structure of one embodiment of an anesthesia machine tubing elbow provided for the purposes of this application;

[0030] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0031] Figure 3 This is a two-view structural schematic diagram of one embodiment of an anesthesia machine tubing elbow provided for the purposes of this application.

[0032] icon:

[0033] 100-bent pipe; 110-first pipe body; 120-second pipe body;

[0034] 200 - First operating connector; 210 - Intervention channel; 220 - First end cap; 230 - Second operating connector; 240 - Second end cap;

[0035] 300 - Ring-shaped airbag; 310 - Pressurization port; 320 - Safety indicator airbag; 330 - Pipeline. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0037] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for 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. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0038] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" 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 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 application based on the specific circumstances.

[0039] An embodiment of this application provides an anesthetic tubing elbow, including a bend 100, a first operating connector 200, and an annular airbag 300.

[0040] The first operating connector 200 is disposed on the outer circumferential surface of the wall of the bend 100 and communicates with the bend 100. The first operating connector 200 is used to provide an intervention channel 210 for external medical devices to enter the interior of the bend 100. The external medical device is, for example, a fiberoptic bronchoscope.

[0041] For example, the bend 100 includes a first pipe body 110 and a second pipe body 120, which are arranged vertically or connected at other angles, such as 45° or 70°. A first operating connector 200 is disposed on the first pipe body 110.

[0042] For example, the first tube 110 is connected to the ventilator end breathing circuit, and the second tube 120 is connected to an artificial airway (such as a laryngeal mask or endotracheal tube).

[0043] During use, an external medical device is inserted into the first tube 110 through the intervention channel 210 of the first operating connector 200, then enters the second tube 120 through the first tube 110, and finally enters the artificial airway through the second tube 120 to perform the required procedures on the patient. In the prior art, the inner wall of the intervention channel 210 has poor sealing with the outer wall of the external medical device, affecting the patient's breathing and potentially causing danger. The anesthetic tubing elbow provided in this application has an adjustable size for the intervention channel 210 on the first operating connector 200, thereby adjusting the sealing with the external medical device and reducing the risk. This is achieved through the following technical solution:

[0044] An annular airbag 300 is disposed on the inner wall of the first operating connector 200. Exemplarily, the outer wall of the annular airbag 300 is a circumferential surface, and the inner wall of the first operating connector 200 is also a circumferential surface, thus forming the intervention channel 210 into a cylindrical chamber. The outer wall of the annular airbag 300 is fixedly disposed on the inner wall of the intervention channel 210. Exemplarily, the annular airbag 300 is fixedly disposed on the inner wall of the intervention channel 210 by means of adhesive bonding or snap-fitting.

[0045] For example, such as Figure 2 As shown, the annular balloon 300 has a through hole in the middle. During use, external medical instruments enter the intervention channel 210 through the opening of the first operating connector 200, pass through the through hole in the middle of the annular balloon 300, and then enter the second tube 120 through the intervention channel 210 and enter the artificial airway through the second tube 120 to perform the required operation on the patient.

[0046] The annular balloon 300 can inflate, and the degree of inflation of the annular balloon 300 is negatively correlated with the opening degree of the interventional channel 210. The greater the inflation degree of the annular balloon 300, the smaller the opening degree of the interventional channel 210; conversely, the smaller the inflation degree of the annular balloon 300, the larger the opening degree of the interventional channel 210. When using external medical instruments such as fiberoptic bronchoscopes with a large radial cross-section, the inflation degree of the annular balloon 300 can be reduced to ensure airtightness while reducing friction between the outer wall of the fiberoptic bronchoscope and the inner wall of the annular balloon 300, thus improving ease of operation and control sensitivity. When using external medical instruments such as fiberoptic bronchoscopes with a small radial cross-section, the inflation degree of the annular balloon 300 can be increased to improve airtightness. By adjusting the inflation degree of the annular balloon 300, the size of the interventional channel 210 can be adjusted to accommodate external medical instruments of different sizes.

[0047] Therefore, in this application, by providing an annular balloon 300 on the inner wall of the first operating connector 200 and allowing it to expand upon inflation, it can tightly fit the outer wall of the external medical device, thereby improving the seal. This design effectively prevents gas leakage and ensures the stability and safety of the patient's respiratory system. The expansion degree of the annular balloon 300 is adjustable, allowing the size of the intervention channel 210 to vary accordingly. This adjustability allows the anesthetic tubing bend to adapt to external medical devices of different sizes, such as fiberoptic bronchoscopes with different radial cross-sections. This improves the versatility and flexibility of the device. When using external medical devices with larger radial cross-sections, reducing the inflation degree of the annular balloon 300 reduces the friction between the outer wall of the fiberoptic bronchoscope and the inner wall of the annular balloon 300, making operation more convenient and improving control sensitivity. Optimizing the seal by adjusting the inflation degree of the annular balloon 300 reduces patient breathing problems and other potential risks caused by poor sealing. This design improves the safety and reliability of the medical device.

[0048] For example, the first operating connector 200 is located on the first tube 110 and parallel to the second tube 120, and the axial projection of the first operating connector 200 is within the range of the axial projection of the second tube 120. External medical devices are inserted into the first tube 110 through the first operating connector 200 and then into the second tube 120 from the first tube 110. The external medical devices do not need to be bent, improving the ease and accuracy of operation.

[0049] like Figure 1 or Figure 3 As shown, in one embodiment, the anesthesia machine tubing bend also includes a pressurization port 310, which is connected to the annular airbag 300, through which external compressed gas enters the annular airbag 300.

[0050] The connection between the pressurization port 310 and the annular airbag 300 allows external compressed gas to easily enter the annular airbag 300, thereby enabling precise control over the inflation level of the annular airbag 300. By adjusting the amount of compressed gas entering the annular airbag 300, the inflation level of the annular airbag 300 can be flexibly adjusted, thereby adjusting the size of the intervention channel 210 to accommodate external medical devices of different sizes and ensure good sealing.

[0051] The annular airbag 300 can be inflated or deflated through the pressure port 310.

[0052] For example, the pressurization port 310 is connected to the annular airbag 300 via a conduit 330. However, in another embodiment, the pressurization port 310 is located on another structure and communicates with the annular airbag 300 through that structure, for example: Figure 1 or Figure 3 As shown, in one embodiment, the anesthesia machine tubing bend also includes a safety indicator airbag 320.

[0053] The safety indicator airbag 320 communicates with and is detachably connected to the annular airbag 300. The detachable connection can take the form of a threaded connection or a snap-fit ​​connection.

[0054] The air pressure inside the safety indicator airbag 320 is the same as that inside the annular airbag 300. The safety indicator airbag 320 ruptures when the air pressure exceeds a first rated pressure value, and the annular airbag 300 ruptures when the air pressure exceeds a second rated pressure value, wherein the first rated pressure value is less than the second rated pressure value. Therefore, when the annular airbag 300 is overfilled with compressed gas, the safety indicator airbag 320 will rupture before the annular airbag 300 to protect the annular airbag 300. The safety indicator airbag 320 is less expensive than the annular airbag 300, thus saving on operating costs.

[0055] For example, the first rated pressure value and the second rated pressure value can be set according to actual needs.

[0056] For example, such as Figure 1 As shown, the pressurization port 310 is located on the safety indicator airbag 320.

[0057] In this application, a pressure safety protection mechanism is formed by setting a safety indicator airbag 320, which is connected to the annular airbag 300 and has different rated pressure values. When the annular airbag 300 is filled with too much compressed gas and the air pressure exceeds the safe range, the safety indicator airbag 320 will rupture before the annular airbag 300, thereby playing a role in warning and protecting the annular airbag 300.

[0058] The safety indicator airbag 320 costs less than the annular airbag 300, and its design aims to rupture before the annular airbag 300 in the event of excessive air pressure, thereby protecting the annular airbag 300 from damage. This design philosophy of "sacrificing" a lower-cost component to protect a higher-cost component helps reduce overall operating costs and improve economic efficiency.

[0059] Unlike the above embodiment which includes a safety indicator airbag 320, in another embodiment, the anesthesia machine tubing bend also includes a safety valve connected to the annular airbag 300. When the air pressure inside the annular airbag 300 is greater than or equal to the second rated air pressure value, the safety valve opens, allowing the compressed gas in the annular airbag 300 to be discharged from the safety valve. When the air pressure inside the annular airbag 300 drops and is less than the second rated air pressure value, the safety valve closes.

[0060] For example, in this embodiment, the annular airbag 300 and the pressurization port 310 are connected by a pipe 330. A branch pipe is connected to the pipe 330, and a safety valve is installed on the branch pipe. The safety valve is connected to the pipe 330 through the branch pipe.

[0061] In this application, a safety valve is installed in the elbow of the anesthesia machine tubing and connected to the annular airbag 300. When the air pressure inside the annular airbag 300 reaches or exceeds a set second rated air pressure value, the safety valve automatically opens, releasing some compressed gas and causing the air pressure inside the annular airbag 300 to drop. This design effectively prevents the annular airbag 300 from rupturing due to excessive air pressure, avoiding potential medical accidents or damage to the annular airbag 300, and significantly enhancing the safety of the equipment.

[0062] The safety valve not only protects the annular airbag 300 from damage caused by excessive air pressure, but also extends the service life of the entire anesthesia machine's tubing bends. By releasing excessive air pressure in a timely manner, it prevents fatigue damage or aging of equipment components caused by prolonged exposure to high pressure.

[0063] By regulating the air pressure through the safety valve, it can be ensured that the air pressure inside the annular airbag 300 remains within a relatively stable range. This stability helps improve the overall performance of the equipment and reduces operational instability or errors that may be caused by air pressure fluctuations.

[0064] Compared to traditional methods that require manual monitoring and adjustment of air pressure, the automated design of the safety valve simplifies the operation process. Medical staff no longer need to constantly monitor the air pressure of the annular airbag 300; the safety valve automatically activates when the air pressure reaches a dangerous level, reducing the risk of human error.

[0065] In another embodiment, a whistle is provided on the exhaust port of the safety valve. When the air pressure inside the annular airbag 300 reaches or exceeds the set second rated air pressure value, the safety valve automatically opens and releases part of the compressed gas to the whistle through the exhaust port. The whistle then sounds to alert the operator.

[0066] The whistle provides an immediate auditory warning mechanism. When the air pressure inside the annular airbag 300 rises abnormally, the whistle will immediately sound, quickly attracting the operator's attention. This immediate feedback helps the operator take timely measures to prevent equipment damage or safety accidents that may result from further pressure increases.

[0067] In one embodiment, the anesthesia machine tubing elbow also includes a gas source connected to the annular airbag 300, which provides compressed gas to the annular airbag 300.

[0068] For example, the air source may be an air pump, an air compressor, a container storing compressed gas, or an accumulator capable of applying pressure to the compressed gas stored therein to facilitate the discharge of the compressed gas.

[0069] In one embodiment, the annular airbag 300 includes at least two sub-airbags, which are circumferentially distributed around the inner wall of the intervention channel 210 to form an annular airbag 300 with internal through holes.

[0070] For example, the sub-airbag is fixedly installed on the inner wall of the intervention channel 210 by means of snap-fit ​​or adhesive.

[0071] The annular balloon 300 consists of at least two sub-balloons, which can be inflated independently, allowing for different degrees of expansion between the sub-balloons to accommodate the insertion of a non-circular radial cross-section portion of an external medical device into the intervention channel 210, thereby maintaining a seal. By inflating the sub-balloons individually, the degree of expansion of each sub-balloon can be precisely controlled, ensuring close contact between the annular balloon 300 and the external medical device.

[0072] When the non-circular radial section of the external medical device is inserted into the intervention channel 210, it is only necessary to inflate each sub-balloon with the same compressed gas to make them expand to the same degree.

[0073] For example, two sub-airbags are provided, and the sub-airbags have a C-shaped structure. The two sub-airbags form an annular airbag 300.

[0074] In another embodiment, three sub-airbags are provided. In yet another embodiment, four sub-airbags are provided. Of course, in other embodiments, the number of sub-airbags can also be other, such as five, six, or seven, etc.

[0075] By inflating each sub-balloon individually, the expansion level of each sub-balloon can be precisely controlled, thereby ensuring a tight contact between the annular balloon 300 and the external medical device. This tight contact helps prevent gas or liquid leakage and maintains the seal within the intervention channel 210, which is especially important for medical procedures that require maintaining specific pressures or preventing cross-infection.

[0076] Unlike the above embodiment where "the annular airbag 300 includes at least two sub-airbags", such as... Figure 3 As shown, in another embodiment, the annular airbag 300 is an integrally formed annular bladder.

[0077] The one-piece molded annular airbag 300 has higher structural integrity. When an external medical device with a circular radial cross-section is inserted into the intervention channel 210, the annular airbag 300 can better seal the intervention channel 210, thereby enhancing airtightness.

[0078] like Figure 1 and Figure 2 As shown, in one embodiment, the anesthesia machine tubing elbow further includes a first end cap 220, which is detachably installed at the opening of the first operating connector 200 and is used to block the opening of the first operating connector 200.

[0079] For example, a first mounting ring is provided on the first end cap 220, and the first mounting ring is sleeved on the outer wall of the first operating connector 200, so that the first end cap 220 is connected to the first operating connector 200.

[0080] For example, the first end cap 220 and the first operating connector 200 are threaded together. The outer wall of the first end cap 220 is provided with an internal thread, and the outer wall of the first operating connector 200 is provided with an external thread that matches the internal thread on the first end cap 220.

[0081] Initially, such as Figure 1 and Figure 2 As shown, the first end cap 220 is installed on the first operating connector 200 to seal the opening of the first operating connector 200. When the first operating connector 200 needs to be used, the first end cap 220 is removed from the first operating connector 200 to open the opening of the first operating connector 200, allowing external medical devices to enter the interventional channel 210.

[0082] like Figure 1 As shown, in one embodiment, the anesthesia machine tubing bend further includes a second operating connector 230, which is disposed on the bend 100 and communicates with the bend 100. Exemplarily, the second operating connector 230 communicates with the first tube body 110 of the bend 100.

[0083] For example, the second operating connector 230 can be used for carbon dioxide partial pressure monitoring. The second operating connector 230 provides an installation position for the carbon dioxide detector, thereby enabling continuous monitoring of end-tidal carbon dioxide (EtCO2), real-time assessment of the patient's ventilation status, prevention of hyperventilation or carbon dioxide retention due to hypoventilation, and thus prevention of further acid-base imbalance and delayed anesthesia recovery.

[0084] like Figure 1 As shown, in one embodiment, the anesthesia machine tubing elbow further includes a second end cap 240, which is detachably installed at the opening of the second operating connector 230 and is used to block the opening of the second operating connector 230.

[0085] For example, the second end cap 240 and the second operating connector 230 are threadedly engaged. The outer wall of the second end cap 240 is provided with an internal thread, and the outer wall of the second operating connector 230 is provided with an external thread that matches the internal thread on the second end cap 240.

[0086] For example, a second mounting ring is provided on the second end cap 240, and the second mounting ring is sleeved on the outer wall of the second operating connector 230, so that the second end cap 240 is connected to the second operating connector 230.

[0087] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0088] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A tubing elbow for an anesthesia machine, characterized in that, include: Bend (100); The first operating connector (200) is disposed on the outer circumferential surface of the wall of the bend (100) and communicates with the bend (100). The first operating connector (200) is used to provide an intervention channel (210) for external medical devices to enter the interior of the bend (100). An annular airbag (300) is disposed on the inner wall of the first operating joint (200). The annular airbag (300) can be inflated by air, and the degree of inflation of the annular airbag (300) is negatively correlated with the degree of opening of the intervention channel (210). The elbow in the anesthesia machine tubing also includes: A pressurization port (310) is connected to the annular airbag (300), through which external compressed gas enters the annular airbag (300). The elbow in the anesthesia machine tubing also includes: A safety indicator airbag (320) is connected to and detachably connected to the annular airbag (300). The air pressure inside the safety indicator airbag (320) is the same as the air pressure inside the annular airbag (300). The safety indicator airbag (320) ruptures when the air pressure inside it exceeds a first rated pressure value, and the annular airbag (300) ruptures when the air pressure inside it exceeds a second rated pressure value, wherein the first rated pressure value is less than the second rated pressure value. The pressurization port (310) is located on the safety indicator airbag (320).

2. The elbow for the anesthesia machine tubing according to claim 1, characterized in that, Also includes: An air source is connected to the annular airbag (300) and provides compressed gas to the annular airbag (300).

3. The elbow for the anesthesia machine tubing according to claim 1, characterized in that, The annular airbag (300) includes at least two sub-airbags, which are circumferentially distributed around the inner wall of the intervention channel (210), and the sub-airbags can be inflated separately.

4. The elbow for the anesthesia machine tubing according to claim 1, characterized in that, The annular airbag (300) is an integrally formed annular bladder.

5. The elbow for the anesthesia machine tubing according to claim 1, characterized in that, Also includes: A first end cap (220) is detachably mounted on the opening of the first operating connector (200) and is used to block the opening of the first operating connector (200).

6. The elbow for the anesthesia machine tubing according to claim 1, characterized in that, Also includes: The second operating connector (230) is disposed on the bend (100) and is connected to the bend (100).

7. The anesthesia machine tubing elbow according to claim 6, characterized in that, Also includes: A second end cap (240) is detachably mounted on the opening of the second operating connector (230) and is used to block the opening of the second operating connector (230).

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