Anti-reflux drainage bag

Abstract

The utility model discloses an anti-backflow drainage bag, which belongs to the technical field of medical auxiliary equipment, and comprises a drainage bag, the top of the drainage bag is provided with an insertion port, and the bottom of the drainage bag is provided with a liquid outlet; comprising a drainage tube, one end of the drainage tube is connected with an insertion port, and the other end of the drainage tube is provided with a silica gel branch pipeline; comprising a flow choking device, a pipe hole is formed in the flow choking device, and the flow choking device is detachably connected with the outer wall of the drainage pipe through the pipe hole; the flow choking device comprises a shell, a clamping block and a motor are arranged in the shell, one side of the clamping block is located in the pipe hole, the clamping block is in contact connection with the outer wall of the drainage pipe, the clamping block is slidably connected with the shell through a sliding rail, a screw hole is formed in the side, away from the pipe hole, of the clamping block, and the screw hole is connected with the motor through a screw rod; a toppling sensor is arranged in the shell and electrically connected with the motor.

Description

Technical Field

[0001] The utility model belongs to the field of medical auxiliary equipment, and in particular relates to an anti-backflow drainage bag. Background Art

[0002] Drainage bags are commonly used medical auxiliary equipment for drainage in hospitals, but existing drainage bags still have the following problems when used:

[0003] 1. When the drainage bag is turned over and dumped, the drainage fluid can easily flow back to the wound and cause infection;

[0004] 2. Some drainage bags equipped with anti-backflow one-way valves will have poor drainage effects due to the narrow diameter of the one-way valve, and some human tissue fragments cannot pass through the one-way valve, causing blockage;

[0005] 3. It is very inconvenient to open the drainage bag for drug injection or sampling of drainage fluid;

[0006] 4. It is difficult to measure a small amount of drainage fluid. Utility Model Content

[0007] The utility model proposes an anti-backflow drainage bag to solve the above problems, and provides the following technical solutions:

[0008] A backflow prevention drainage bag comprises a drainage bag, wherein a plug interface is provided at the top of the drainage bag, and a liquid discharge port is provided at the bottom of the drainage bag; a drainage tube, one end of the drainage tube is connected to the plug interface, and the other end of the drainage tube is provided with a silicone branch pipeline; a flow blocking device is provided, wherein a tube hole is provided on the flow blocking device, and the flow blocking device is detachably connected to the outer wall of the drainage tube through the tube hole; the flow blocking device comprises a shell, wherein a clamping block and a motor are provided in the shell, one side of the clamping block is located in the tube hole, the clamping block is in contact with the outer wall of the drainage tube, the clamping block is slidably connected to the shell through a slide rail, a screw hole is provided on the side of the clamping block away from the tube hole, and the screw hole is connected to the motor through a screw rod; a tipping sensor is provided in the shell, and the tipping sensor is electrically connected to the motor.

[0009] Preferably, a first scale is provided at the bottom of the drainage bag, the first scale is arranged obliquely, and one end of the first scale points to a corner of the bottom of the drainage bag.

[0010] Preferably, the drainage tube is provided with a thickened tube wall at one end close to the insertion port.

[0011] Preferably, a second scale is provided on the drainage tube.

[0012] Preferably, the drain port is opened and closed by a drain clamp.

[0013] Preferably, an anti-backflow membrane is provided in the drainage bag, and the anti-backflow membrane is communicated with the plug port.

[0014] Beneficial Effects

[0015] The utility model has the following beneficial effects:

[0016] 1. The flow blocking device cooperates with the dumping sensor to compress the outer wall of the drainage tube to achieve the anti-backflow effect.

[0017] 2. The detachable flow blocking device can be used repeatedly, which is conducive to its popularization and use.

[0018] 3. The first scale and the second scale are used to measure the amount of drainage fluid in small and very small amounts, thereby increasing the measurement range of the drainage fluid amount.

[0019] 4. Through the silicone branch line, convenient drug injection or sampling operations can be performed without destroying the drainage seal.

[0020] 5. Anti-backflow membrane is used to further prevent backflow of drainage fluid. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 .Schematic diagram of the structure of this embodiment.

[0022] Figure 2 .Schematic diagram of the external structure of the flow blocking device in this embodiment.

[0023] Figure 3 .Schematic diagram of the internal structure of the flow blocking device in this embodiment.

[0024] Figure 4 .Schematic diagram of the connection between the drainage tube and the drainage bag in this embodiment.

[0025] In the figure: 1 drainage bag; 101 drainage port; 102 first scale; 103 drainage clamp; 104 plug interface; 2 drainage tube; 201 silicone branch pipeline; 202 thickened tube wall; 203 second scale; 3 flow blocking device; 301 shell; 302 dumping sensor; 303 tube hole; 304 clamp block; 305 motor; 306 screw; 307 screw hole; 308 slide rail; 309 battery; 4 one-way valve; 5 anti-backflow membrane. DETAILED DESCRIPTION

[0026] The following embodiments will further illustrate the present invention, but are not intended to limit the present invention.

[0027] like Figures 1 to 4As shown, this embodiment provides an anti-backflow drainage bag, including a drainage bag 1, the top of the drainage bag 1 is provided with an insertion port 104 for connecting to the drainage tube 2; the bottom of the drainage bag 1 is provided with a drainage port 101, and the drainage port 101 is controlled to open and close by a drainage clamp 103 provided at the bottom thereof, and the drainage clamp 103 is a conventional medical pipeline sealing clamp, thereby achieving the effect of convenient drainage.

[0028] It includes a drainage tube 2, one end of which is plug-connected to the plug interface 104, and is fixed by the friction generated by the plug interface 104 and the outer wall of the drainage tube 2; the other end of the drainage tube 2 is provided with a pagoda-shaped joint, which is used to adapt to a variety of pipeline inner diameters, thereby improving the applicability of this embodiment. The pagoda-shaped joint is a conventional existing technology, and its principle is not repeated here; a silicone branch line 201 is provided next to the pagoda-shaped joint, and the silicone branch line 201 is a pipeline branch made of silicone material. An external injection and sampling needle can puncture the silicone branch line 201 to inject drugs or take samples of the drainage fluid, thereby performing convenient drug injection or sampling operations without destroying the drainage sealing.

[0029] The blocking device 3 includes a pipe hole 303 which penetrates the blocking device 3. The blocking device 3 is detachably connected to the outer wall of the drainage tube 2 through the pipe hole 303. The blocking device 3 can be quickly installed on the drainage tube 2 by inserting the drainage tube 2 into the pipe hole 303. Similarly, the blocking device 3 can be quickly disassembled by pulling the drainage tube 2 out of the pipe hole 303. During use, the blocking device 3 does not contact the drainage fluid, so it is not easily contaminated by the drainage fluid, thereby achieving the effect of repeatedly using the blocking device 3 in different drainage bag 1 kits. Since the blocking device 3 is a small electronic device, repeated use of the blocking device 3 can reduce waste and reduce costs, which is conducive to large-scale promotion and use.

[0030] The flow blocking device 3 includes a shell 301, which is a waterproof and sealed structure. A clamping block 304 and a motor 305 are arranged in the shell 301. The clamping block 304 is located on the upper side of the tube hole 303. The clamping block 304 is in contact with the outer wall of the drainage tube 2. After the clamping block 304 is translated, the aperture of the tube hole 303 can be reduced, thereby flattening the drainage tube 2 inserted in the tube hole 303, thereby achieving the effect of blocking the drainage tube 2; the clamping block 304 slides with the shell 301 through the slide rail 308. The movable connection realizes translation. The side of the clamp 304 away from the tube hole 303 is fixed with a screw hole 307. The screw hole 307 is connected to the output end of the motor 305 through the screw rod 306. When the motor 305 rotates, it drives the screw rod 306 to rotate, and then drives the clamp 304 to translate along the slide rail 308 through the screw hole 307. The method of achieving translation of the clamp 304 by the cooperation of the screw rod 306 and the screw hole 307 is a common screw mechanical structure, and its principle is not repeated here. In the prior art, there is also a drainage bag 1 with an anti-backflow one-way valve, but the narrow caliber of the one-way valve will lead to a poor drainage effect. During drainage, some human tissue fragments in the drainage fluid will be blocked because they cannot pass through the one-way valve. This embodiment achieves an anti-backflow effect by squeezing the tube wall of the drainage tube 2, so that the drainage effect will not be reduced during normal drainage, and human tissues will be prevented from being blocked in the drainage tube 2.

[0031] The motor 305 in this embodiment adopts a self-locking motor 305. When the motor 305 drives the clamping block 304 to flatten the drainage tube 2 to block the flow, it will automatically self-lock. After self-locking, the motor 305 stops rotating, thereby preventing the clamping block 304 from exerting excessive pressure on the drainage tube 2, causing the drainage tube 2 to rupture and be damaged, and also preventing the motor 305 from being damaged due to limited rotation.

[0032] A thickened tube wall 202 is provided at one end of the drainage tube 2 close to the insertion port 104 at the connection position with the tube hole 303 of the flow blocking device 3, thereby preventing the tube wall from being easily damaged by the clamping block 304 by increasing the thickness of the tube wall, thereby increasing the service life of the tube wall.

[0033] A tipping sensor 302, a control circuit and a battery 309 are also provided in the shell 301. The tipping sensor 302 is electrically connected to the motor 305 through the control circuit. When the drainage bag 1 tips over and thus drives the flow blocking device 3 to tip over, the tipping sensor 302 sends an electrical signal to the control circuit, and the control circuit sends an electrical signal to the motor 305 to rotate the motor 305 and drive the clamping block 304 to translate toward one side of the drainage tube 2, thereby blocking the drainage tube 2 to prevent the drainage fluid from flowing back. When the drainage bag 1 recovers from the tipping state, the motor 305 drives the clamping block 304 away from the drainage tube 2, unblocking the drainage tube 2 and continuing normal drainage. The tipping sensor 302 in this embodiment uses an Omron small tipping sensor 302. In other embodiments, other types of small tipping sensors 302 can be used as a substitute, but the weight should not be too heavy to avoid causing excessive weight burden on the patient when carrying the drainage bag 1; the battery 309 provides power for the tipping sensor 302, the motor 305 and the control circuit. The battery 309 in this embodiment is a rechargeable battery, and disposable batteries can be used in other embodiments.

[0034] In addition to the conventional vertically arranged scale on the bag body of the drainage bag 1, the bottom of the drainage bag 1 is also provided with a first scale 102, which is arranged at an angle of 45°, and one end of the first scale 102 points to a corner of the bottom of the drainage bag 1; when the drainage fluid in the drainage bag 1 is less, the drainage bag 1 can be used as the bottom of the corner with the first scale 102, and the drainage bag 1 can be tilted to measure the amount of drainage fluid, thereby increasing the measurement range of the drainage fluid amount.

[0035] A second scale 203 is provided on the drainage tube 2. When the drainage fluid is extremely small and there is no drainage fluid in the drainage bag 1, the position of the liquid in the drainage tube 2 can be read and the drainage fluid in the drainage tube 2 can be estimated with reference to the second scale 203, thereby further improving the measurement range of the drainage fluid and realizing the measurement of extremely small amounts of drainage fluid, which is convenient for accurately recording the patient's drainage condition.

[0036] The drainage bag 1 is provided with an anti-backflow membrane 5, which is connected to the plug port 104. The anti-backflow membrane 5 is an existing conventional technology. The invention patent "Anti-backflow membrane 5" (CN210096469U) and other similar public technologies all adopt this type of structure, which prevents the drainage fluid from flowing back through the backflow membrane, thereby further avoiding the backflow of the drainage fluid. In other embodiments, the anti-backflow membrane 5 may not be provided, thereby increasing the drainage flux and thus improving the drainage effect. Medical personnel can choose according to the specific conditions of the patient.

[0037] In addition, if you want to further improve the anti-backflow effect, a one-way valve can be set on the drainage tube 2 to achieve triple anti-backflow protection of the flow blocking device 3, the one-way valve 4 and the anti-backflow membrane 5, thereby further improving the anti-backflow effect.

[0038] In this embodiment, except for the flow blocking device 3, all other medical supplies are disposable. The flow blocking device 3 needs to be cleaned and disinfected before and after use to meet the requirements of existing medical standards.

[0039] Specific usage:

[0040] When in use, one end of the drainage tube 2 is passed through the tube hole 303 of the flow blocking device 3 and then plugged into the plug port 104, and the pagoda interface at the other end of the drainage tube 2 is connected to the external drainage pipeline, thereby achieving a drainage effect.

[0041] When the drainage bag 1 is tilted, the tilting of the drainage bag 1 drives the flow blocking device 3 to tilt. After sensing the tilting, the tilting sensor 302 sends an electrical signal to the control circuit. The control circuit sends an electrical signal to the motor 305 to rotate the motor 305, thereby driving the clamp 304 to translate toward one side of the drainage tube 2, thereby blocking the drainage tube 2 by compressing the outer wall of the drainage tube 2 to prevent the drainage fluid from flowing back. When the drainage bag 1 recovers from the tilted state, the motor 305 drives the clamp 304 to move away from the drainage tube 2, unblocking the drainage tube 2 and continuing normal drainage.

[0042] When it is necessary to inject drugs or take samples into the drainage fluid, the external injection and sampling needle can inject drugs or take samples into the drainage fluid by puncturing the silicone branch line 201, thereby performing convenient drug injection or sampling operations without destroying the drainage sealing.

[0043] When the drainage fluid in the drainage bag 1 is less, the drainage fluid can be measured after the drainage bag 1 is tilted with the corner with the first scale 102 as the bottom, thereby increasing the measurement range of the drainage fluid.

[0044] When there is no drainage fluid in the drainage bag 1 but a small amount of drainage fluid exists in the drainage tube 2, medical personnel can read the position of the liquid in the drainage tube 2 and estimate the drainage fluid in the drainage tube 2 with reference to the second scale 203, thereby further improving the measurement range of the drainage fluid and realizing the measurement of a very small amount of drainage fluid volume, which is convenient for accurately recording the patient's drainage condition.

[0045] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An anti-backflow drainage bag, characterized in that: It comprises a drainage bag, wherein the top of the drainage bag is provided with an insertion port, and the bottom of the drainage bag is provided with a drainage port; It comprises a drainage tube, one end of which is connected to the plug port, and the other end of which is provided with a silicone branch line; The invention comprises a flow blocking device, wherein a tube hole is arranged on the flow blocking device, and the flow blocking device is detachably connected to the outer wall of the drainage tube through the tube hole; the flow blocking device comprises a shell, and a clamping block and a motor are arranged in the shell, one side of the clamping block is located in the tube hole, the clamping block is in contact with the outer wall of the drainage tube, the clamping block is slidably connected to the shell through a slide rail, a screw hole is arranged on the side of the clamping block away from the tube hole, and the screw hole is connected to the motor through a screw rod; a tipping sensor is arranged in the shell, and the tipping sensor is electrically connected to the motor.

2. The anti-backflow drainage bag according to claim 1, characterized in that: A first scale is arranged at the bottom of the drainage bag, and the first scale is arranged obliquely, with one end of the first scale pointing to a corner of the bottom of the drainage bag.

3. The anti-backflow drainage bag according to claim 1, characterized in that: The drainage tube is provided with a thickened tube wall at one end close to the insertion port.

4. The anti-backflow drainage bag according to claim 1, characterized in that: The drainage tube is provided with a second scale.

5. The anti-backflow drainage bag according to claim 1, characterized in that: The drain port is opened and closed by a drain clamp.

6. The anti-backflow drainage bag according to claim 1, characterized in that: An anti-backflow membrane is arranged in the drainage bag, and the anti-backflow membrane is communicated with the insertion port.

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