Continuous negative pressure compensation drainage bottle

Abstract

A continuous negative pressure compensation drainage bottle comprises a negative pressure drainage bottle body, a drainage catheter is arranged at the top of the negative pressure drainage bottle body and extends into the negative pressure drainage bottle body, an air guide pipe is further arranged at the top of the drainage bottle body, the lower end of the air guide pipe is arranged on the upper portion in the negative pressure drainage bottle body, and the upper end of the air guide pipe is communicated with one end of an exhaust air bellow. A first tongue flap one-way valve is arranged at the other end of the exhaust air bellow. According to the continuous negative pressure compensation drainage bottle, continuous negative pressure is generated in the drainage bottle through the air bellow, so that the negative pressure in the bottle cannot be increased or decreased instantly, drainage can be conducted continuously and stably, and the risk of backflow is avoided; drainage liquid does not pass through the air bellow, and safety and sanitation are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of negative pressure drainage, in particular to a continuous negative pressure compensation drainage bottle. Background Art

[0002] Our company has been using a negative pressure drainage device as disclosed in the authorization announcement number CN206910543U, but the device has the following defects: 1. The drainage liquid first enters the bellows and then is pressed from the bellows to the drainage bag. The liquid in the bellows is uncontrollable. When the bellows is squeezed, the liquid may flow back and cause infection. The liquid in the bellows cannot be completely drained and there is always residue. The bellows' own stretching force is far less than the artificial downward pressure, and the instantaneous pressure in the drainage bag changes greatly and cannot change smoothly. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a continuous negative pressure compensation drainage bottle, which can drain with stable pressure and the liquid does not pass through the exhaust bellows.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a continuous negative pressure compensation drainage bottle, including a negative pressure drainage bottle, a drainage catheter is provided at the top of the negative pressure drainage bottle, the drainage catheter extends into the negative pressure drainage bottle, and an air guide tube is also provided at the top of the drainage bottle, the lower end of the air guide tube is arranged at the upper part of the negative pressure drainage bottle, the upper end of the air guide tube is connected to one end of the exhaust bellows, and the other end of the exhaust bellows is provided with a first tongue-flap one-way valve.

[0005] Preferably, the exhaust bellows is fixedly mounted on the vertical plate, and the air guide pipe passes through the vertical plate and is connected with the exhaust bellows.

[0006] Preferably, the outer cover of the flap one-way valve is provided with an air chamber, and an exhaust valve is provided on the air chamber.

[0007] Preferably, a waterproof and breathable membrane is provided at the lower end of the air guide tube.

[0008] Preferably, the air guide tube is also communicated with an indicator tube, and an indicator bellows is connected to the end of the indicator tube.

[0009] Preferably, a second flap one-way valve is provided at the lower end of the drainage catheter.

[0010] Preferably, a drainage tube is provided at the bottom of the negative pressure drainage bottle, and a plug is provided at the end of the drainage tube.

[0011] Preferably, the negative pressure drainage bottle has a non-deformable hard bottle body.

[0012] Preferably, the negative pressure drainage bottle is provided with scales on the bottle body.

[0013] The utility model provides a continuous negative pressure compensation drainage bottle, which generates continuous negative pressure in the drainage bottle through a bellows, so that the negative pressure in the bottle will not increase or decrease instantly, and can continuously and smoothly perform drainage without the risk of backflow; and the drainage fluid does not pass through the bellows, which is safer and more hygienic. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the tongue-flap one-way valve of the utility model. DETAILED DESCRIPTION

[0017] like Figure 1-2 As shown, a continuous negative pressure compensation drainage bottle comprises a negative pressure drainage bottle 1, a drainage catheter 2 is arranged at the top of the negative pressure drainage bottle 1, the drainage catheter 2 extends into the negative pressure drainage bottle 1, and an air guide tube 3 is also arranged at the top of the drainage bottle 1, the lower end of the air guide tube 3 is arranged at the upper part of the negative pressure drainage bottle 1, the upper end of the air guide tube 3 is connected with one end of the exhaust bellows 4, and the other end of the exhaust bellows 4 is provided with a first flap check valve 5. By pressing the exhaust bellows 4, the gas in the negative pressure drainage bottle 1 is discharged to form a negative pressure, and the first flap check valve 5 can only exhaust but not intake air.

[0018] Preferably, the exhaust bellows 4 is fixedly mounted on the vertical plate 6, and the air guide pipe 3 passes through the vertical plate 6 and communicates with the exhaust bellows 4. The vertical plate 6 facilitates the fixing and pressing of the exhaust bellows 4.

[0019] Preferably, the outer cover of the flap check valve 5 is provided with an air chamber 7, and an exhaust valve 8 is provided on the air chamber 7. The exhaust valve 8 is opened when exhausting, and the exhaust valve 8 is closed when exhausting is not required.

[0020] Preferably, a waterproof and breathable membrane 9 is provided at the lower end of the air guide tube 3 to prevent the drainage fluid from entering the exhaust pipe 3 .

[0021] Preferably, the air guide tube 3 is also connected to the indicator tube 10, and an indicator bellows 11 is connected to the end of the indicator tube 10. The indicator bellows 11 rises and falls with the pressure change in the negative pressure drainage bottle. When the negative pressure is large, the indicator bellows 11 is compressed and the height is reduced, and vice versa, the height is increased. The size of the negative pressure in the drainage bottle can be judged by the height of the indicator bellows 11.

[0022] Preferably, a second flap check valve 14 is provided at the lower end of the drainage catheter 2 to prevent the drainage fluid from flowing back from the drainage catheter 2 when the exhaust bellows is pressed.

[0023] Preferably, a drain pipe 12 is provided at the bottom of the negative pressure drainage bottle 1, and a plug 13 is provided at the end of the drain pipe 12 to facilitate the discharge of liquid.

[0024] Preferably, the negative pressure drainage bottle 1 is a hard bottle body that cannot be deformed.

[0025] When in use, the exhaust bellows 4 is continuously pressed to generate a continuous negative pressure in the negative pressure drainage bottle 1. When no negative pressure is needed, the exhaust valve 8 can be closed, and the exhaust valve 8 can be opened when exhaust is needed. During the drainage process, the height of the indicating bellows can be observed to determine the negative pressure in the drainage bottle, so as to increase or decrease the pressure.

[0026] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A continuous negative pressure compensation drainage bottle, characterized in that: The invention comprises a negative pressure drainage bottle (1), a drainage catheter (2) is arranged at the top of the negative pressure drainage bottle (1), the drainage catheter (2) extends into the negative pressure drainage bottle (1), an air guide tube (3) is also arranged at the top of the drainage bottle (1), the lower end of the air guide tube (3) is arranged at the upper part of the negative pressure drainage bottle (1), the upper end of the air guide tube (3) is connected to one end of an exhaust bellows (4), and the other end of the exhaust bellows (4) is provided with a first flap one-way valve (5).

2. A continuous negative pressure compensation drainage bottle according to claim 1, characterized in that: The exhaust bellows (4) is fixedly mounted on the vertical plate (6), and the air guide pipe (3) passes through the vertical plate (6) and is in communication with the exhaust bellows (4).

3. The continuous negative pressure compensation drainage bottle according to claim 1, characterized in that: An outer cover of the flap check valve (5) is provided with an air chamber (7), and an exhaust valve (8) is provided on the air chamber (7).

4. The continuous negative pressure compensation drainage bottle according to claim 1, characterized in that: The lower end of the air guide tube (3) is provided with a waterproof and breathable membrane (9).

5. The continuous negative pressure compensation drainage bottle according to claim 1, characterized in that: The air guide tube (3) is also in communication with an indicator tube (10), and an indicator bellows (11) is connected to the end of the indicator tube (10).

6. The continuous negative pressure compensation drainage bottle according to claim 1, characterized in that: A second flap one-way valve (14) is provided at the lower end of the drainage catheter (2).

7. The continuous negative pressure compensation drainage bottle according to claim 1, characterized in that: A drainage pipe (12) is provided at the bottom of the negative pressure drainage bottle (1), and a plug (13) is provided at the end of the drainage pipe (12).

8. The continuous negative pressure compensation drainage bottle according to claim 1, characterized in that: The negative pressure drainage bottle (1) is a hard bottle body that cannot be deformed.

9. A continuous negative pressure compensation drainage bottle according to claim 1 or 8, characterized in that: The negative pressure drainage bottle (1) is provided with scales on its body.

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