Air bag pressure stabilizer

Abstract

The utility model provides an air bag pressure stabilizer. The air bag pressure stabilizer comprises a liquid storage bottle, a liquid pipe, a gas-liquid membrane bin, a gas pipe and an adapter used for being connected with an air bag in a sealed mode, the interior of the gas-liquid membrane bin is divided into a liquid cavity communicated with a liquid pipe and a gas cavity communicated with a gas pipe through a flexible separation membrane; the volume of the liquid storage bottle is greater than the sum of the volumes of the liquid pipe and the gas-liquid membrane bin; the device does not depend on electronic elements, is adjustable and can be repeatedly used; and the pressure of the air bag can be adjusted in time.

Description

Technical Field

[0001] This invention relates primarily to the field of medical devices, and more particularly to airbag pressure regulators. Background Technology

[0002] Airbags are commonly used occlusion structures in medical devices, such as endotracheal tubes.

[0003] During use, airbags can experience pressure loss, meaning internal gas can escape, leading to incomplete sealing. Currently, airbag pressure regulation systems generally fall into two categories:

[0004] One method is manual detection, followed by gas replenishment after a period of time, which requires a lot of manpower.

[0005] Another method involves using electronic devices to detect pressure and replenish air in real time. However, this method is expensive and cannot be used in some areas where electronic components are prohibited or restricted.

[0006] Therefore, there is an urgent need for a device that does not rely on electronic components and can replenish gas in a timely manner. Summary of the Invention

[0007] To address the aforementioned deficiencies in the prior art, the present invention provides an airbag pressure regulator, comprising a liquid storage bottle, a liquid tube, a gas-liquid membrane chamber, a gas tube, and an adapter for sealing connection with an airbag, connected in sequence.

[0008] The gas-liquid membrane chamber is divided into a liquid chamber connected to a liquid pipe and a gas chamber connected to a gas pipe by a flexible separator membrane.

[0009] The volume of the storage bottle is greater than the sum of the volumes of the liquid tube and the gas-liquid membrane chamber.

[0010] Preferably, a liquid regulating valve port is provided on the outside of the gas-liquid film chamber, which is connected to the liquid chamber; and a gas regulating valve port is provided on the outside of the gas-liquid film chamber, which is connected to the gas chamber.

[0011] Preferably, the maximum distance between the liquid storage bottle and the gas-liquid film chamber is 18-25 cm;

[0012] A height adjuster is installed below the liquid storage bottle, and the adjustment range of the height adjuster is 0-5cm.

[0013] Preferably, the height adjuster includes a liquid inlet pipe connected to the bottom of the liquid storage bottle and an adjusting pipe with a double-ring structure. The outer ring of the adjusting pipe is movably connected to the outside of the liquid inlet pipe through an internal thread. One end of the inner ring of the adjusting pipe is limited to the inside of the liquid inlet pipe through a clearance fit, and the other end is connected to the gas-liquid film chamber through a liquid pipe connecting pipe.

[0014] Preferably, the height adjuster includes a multi-claw disc wrapped around the outside of the liquid storage bottle, with a threaded tube fixedly installed at the center of the multi-claw disc. One end of the threaded tube is connected to the liquid storage bottle, and the other end is connected to the liquid pipe. The liquid storage bottle is limited by friction at the claw hooks of the multi-claw disc.

[0015] Preferably, an adjustment disc is also provided at the center of the multi-claw disc, and the adjustment disc is connected to the claw hook of the multi-claw disc by a side wall thread for limiting.

[0016] Preferably, the cross-sectional dimensions of the inner cavity of the storage bottle match the cross-sectional dimensions of the liquid cavity.

[0017] The beneficial effects of this invention are:

[0018] 1. It does not rely on electronic components, is adjustable, and can be reused repeatedly;

[0019] 2. The airbag pressure can be adjusted in a timely manner. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the present invention;

[0021] Figure 2 This is a structural diagram of the gas-liquid film chamber of the present invention;

[0022] Figure 3 This is a structural diagram of the height adjuster in Embodiment 1 of the present invention;

[0023] Figure 4 This is a structural diagram of the height adjuster in Embodiment 2 of the present invention;

[0024] In the picture,

[0025] 1. Liquid storage bottle; 2. Gas-liquid film chamber; 3. Liquid pipe; 4. Gas pipe; 5. Multi-claw plate; 10. Height adjuster; 21. Separator membrane; 22. Liquid chamber; 23. Gas chamber; 101. Liquid passage pipe; 102. Adjustment pipe. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solutions of the present invention and to make the above-mentioned features, objectives, and advantages of the present invention clearer and easier to understand, the present invention will be further described below with reference to embodiments. These embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0027] like Figure 1-2 As shown, the present invention includes: a liquid storage bottle (1), a liquid tube (3), a gas-liquid membrane chamber (2), a gas tube (4) connected in sequence, and an adapter for sealing connection with an airbag;

[0028] The gas-liquid membrane chamber (2) is divided into a liquid chamber (22) connected to the liquid pipe (3) and a gas chamber (23) connected to the gas pipe (4) by a flexible separator (21);

[0029] The volume of the liquid storage bottle (1) is greater than the sum of the volumes of the liquid tube (3) and the gas-liquid membrane chamber (2).

[0030] In normal use, the adapter connects to an inflatable airbag, such as the airbag for endotracheal intubation. Liquid is injected into the reservoir (1), and the liquid can be water, saline, etc. The liquid flows from the reservoir (1) through the liquid tube (3) into the liquid chamber (22) of the gas-liquid membrane chamber (2) due to gravity. Under normal circumstances, the injected liquid level is 18-25 cm to maintain the pressure in the liquid chamber (22) at 18-25 cmH2O.

[0031] The separator (21) is essentially an elastic membrane. Generally, if the pressure in the liquid chamber (22) is greater than the pressure in the gas chamber (23), the separator (21) will deform downwards under the pressure of the liquid, and the pressure in the gas chamber (23) will rise; if the pressure in the liquid chamber (22) is less than the pressure in the gas chamber (23), the separator (21) will deform upwards under the pressure of the gas in the gas chamber (23), and the pressure in the gas chamber (23) will decrease. Since the gas chamber (23) is connected to the inflatable airbag through the gas tube (4), the pressure in the gas chamber (23) can be considered to be equivalent to the pressure in the airbag. When the pressure in the gas chamber (23) fluctuates, the inflatable airbag will also fluctuate. Due to the pressure of the liquid in the liquid chamber (22), the pressure in the gas chamber (23) will also be maintained at the same pressure value. The cross-sectional area of ​​the inner cavity of the liquid storage bottle (1) matches the cross-sectional area of ​​the liquid chamber (22), which facilitates the adjustment and control of the pressure.

[0032] To facilitate the adjustment and removal of liquid, a liquid adjustment valve is provided on the outside of the gas-liquid membrane chamber (2) and connected to the liquid chamber (22). If the liquid pressure in the liquid chamber (22) is too high, that is, if too much liquid is injected, some liquid can be removed through the liquid adjustment valve. When it is necessary to completely remove the liquid, the gas-liquid membrane chamber (2) is inverted with the liquid chamber (22) facing down, and the liquid adjustment valve is opened.

[0033] The gas-liquid membrane chamber (2) is connected to the gas chamber (23) on the outside and is equipped with a gas regulating valve. When the pressure in the gas chamber (23) is too high, the pressure can be released by opening the gas regulating valve.

[0034] To facilitate observation, the maximum distance between the liquid storage bottle (1) and the gas-liquid film chamber (2) is 18-25cm. At the same time, to facilitate height adjustment, a height adjuster (10) is installed below the liquid storage bottle (1), and the adjustment range of the height adjuster (10) is 0-5cm.

[0035] refer to Figure 3 One of the structures of the height adjuster (10) is as follows: The height adjuster (10) includes a liquid inlet pipe (101) connected to the bottom of the liquid storage bottle (1) and an adjusting pipe (102) with a double ring structure. The outer ring of the adjusting pipe (102) is movably connected to the outside of the liquid inlet pipe (101) through an internal thread. One end of the inner ring of the adjusting pipe (102) is limited to the inside of the liquid inlet pipe (101) through a clearance fit, and the other end is connected to the gas-liquid film chamber (2) through a liquid pipe (3).

[0036] By rotating the storage bottle (1) or adjusting tube (102), the position of the adjusting tube (102) can be adjusted via the thread, thereby raising or lowering the position of the connection end of the liquid tube (3). The range of motion of the adjusting tube (102) is 0-5 cm.

[0037] refer to Figure 4 The second structure of the height adjuster (10) is as follows: The height adjuster (10) includes a multi-claw disc (5) wrapped around the outside of the liquid storage bottle (1). A threaded tube is fixedly installed at the center of the multi-claw disc (5). One end of the threaded tube is connected to the liquid storage bottle (1), and the other end is connected to the liquid tube (3). The claws of the multi-claw disc (5) limit the liquid storage bottle (1) by friction. An adjustment disc is also provided at the center of the multi-claw disc (5). The adjustment disc is connected to the claws of the multi-claw disc (5) by a side wall thread. By rotating the adjustment disc, the liquid storage bottle (1) is moved up and down. The threaded tube will also extend and compress synchronously, thereby controlling the overall length of the liquid tube (3) and indirectly controlling the pressure in the liquid chamber (22). The adjustment range of the adjustment disc is 0-5cm, and the length of the threaded tube is 1-6cm.

[0038] The above embodiments are merely illustrative of the principles and effects of this patent application and are not intended to limit this patent application. Any person skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of this patent application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this patent application shall still be covered by the claims of this patent application.

Claims

1. An airbag pressure regulator, characterized in that, include: The liquid storage bottle (1), liquid tube (3), gas-liquid membrane chamber (2), gas tube (4), and adapter for sealing connection with the airbag are connected in sequence. The gas-liquid membrane chamber (2) is divided into a liquid chamber (22) connected to the liquid pipe (3) and a gas chamber (23) connected to the gas pipe (4) by a flexible separator (21); The volume of the liquid storage bottle (1) is greater than the sum of the volumes of the liquid tube (3) and the gas-liquid membrane chamber (2).

2. The airbag pressure regulator according to claim 1, characterized in that: The liquid chamber (2) is connected to the liquid chamber (22) on the outside and is provided with a liquid regulating valve port; the gas chamber (2) is connected to the gas chamber (23) on the outside and is provided with a gas regulating valve port.

3. The airbag pressure regulator according to claim 1, characterized in that: The maximum distance between the liquid storage bottle (1) and the gas-liquid membrane chamber (2) is 18-25cm; A height adjuster (10) is provided below the liquid storage bottle (1), and the adjustment range of the height adjuster (10) is 0-5cm.

4. The airbag pressure regulator according to claim 3, characterized in that: The height adjuster (10) includes a liquid inlet pipe (101) connected to the bottom of the liquid storage bottle (1) and an adjustment pipe (102) with a double ring structure. The outer ring of the adjustment pipe (102) is movably connected to the outside of the liquid inlet pipe (101) through an internal thread. One end of the inner ring of the adjustment pipe (102) is limited to the inside of the liquid inlet pipe (101) through a clearance fit, and the other end is connected to the gas-liquid film chamber (2) through a liquid pipe (3).

5. The airbag pressure regulator according to claim 3, characterized in that: The height adjuster (10) includes a multi-claw disc (5) wrapped around the outside of the liquid storage bottle (1). A threaded tube is fixedly installed at the center of the multi-claw disc (5). One end of the threaded tube is connected to the liquid storage bottle (1), and the other end is connected to the liquid tube (3). The claws of the multi-claw disc (5) limit the liquid storage bottle (1) by friction.

6. The airbag pressure regulator according to claim 5, characterized in that: An adjustment disc is also provided at the center of the multi-claw disc (5), and the adjustment disc is connected to the claw hook of the multi-claw disc (5) through a side wall thread for limiting.

7. The airbag pressure regulator according to any one of claims 1-6, characterized in that: The cross-sectional dimensions of the inner cavity of the storage bottle (1) match the cross-sectional dimensions of the liquid cavity (22).

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