An anti-reflux negative pressure drainage device

Abstract

The utility model discloses a kind of anti-reflux negative pressure drainage devices, comprising: negative pressure drainage mechanism, anti-reflux component and protection component, negative pressure drainage mechanism includes bottom plate, the top of bottom plate is provided with liquid storage sac, the top of liquid storage sac is provided with top plate, the top of top plate is provided with connecting port, the side of bottom plate and top plate is provided with pusher, anti-reflux component is set in the bottom of connecting port, protection component includes the fixed plate of setting in the top of bottom plate, the top of fixed plate is provided with adjusting plate, the junction of adjusting plate and fixed plate is provided with restriction piece. The utility model is through the design of fixed plate, adjusting plate, restriction piece, connecting piece and fixing piece, in use, fixed plate is fixed in the top of bottom plate by fixing piece, adjusting plate and top plate are connected by connecting piece, in use, through the protection of fixed plate and adjusting plate, avoid the situation that the use is affected due to liquid storage sac is scratched and blood flows out when using.

Description

Technical Field

[0001] This utility model relates to the field of medical technology, and in particular to an anti-backflow negative pressure drainage device. Background Technology

[0002] A negative pressure drainage device is a medical device that uses negative pressure suction to effectively remove wound exudate and promote tissue healing. It is commonly used for postoperative drainage and chronic wound care.

[0003] Traditional negative pressure drainage devices employ a five-component mechanical structure design, including a base plate, a multi-layer composite membrane reservoir, a top plate, a spring, and a connecting port. Their working principle involves expelling gas from the reservoir, then using the spring's rebound force to displace the top plate, generating continuous negative pressure. This pressure is then used to extract wound exudate through the connecting pipe. However, if the device accidentally falls, the reservoir, composed of the multi-layer composite membrane, is easily punctured by sharp objects on the ground, affecting its subsequent use. Therefore, this solution proposes an anti-backflow negative pressure drainage device to address these issues. Utility Model Content

[0004] The purpose of this invention is to provide an anti-backflow negative pressure drainage device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a backflow prevention negative pressure drainage device, comprising:

[0006] A negative pressure drainage mechanism includes a base plate, a liquid storage bladder at the top of the base plate, a top plate at the top of the liquid storage bladder, a connection port at the top of the top plate, and a pushing member on the side of the base plate opposite to the top plate.

[0007] An anti-backflow component is provided at the bottom of the connection port;

[0008] The protective assembly includes a fixed plate disposed on the top of a base plate, an adjusting plate disposed on the top of the fixed plate, a limiting member disposed at the connection between the adjusting plate and the fixed plate, a connecting member disposed at the connection between the top plate and the adjusting plate, and a fixing member disposed on the top of the base plate.

[0009] Preferably, the pushing member includes a spring disposed on the opposite side of the bottom plate and the top plate, the spring being used to push the top plate.

[0010] Preferably, the anti-backflow component includes a block at the bottom of the connection port, a connecting rod at the bottom of the block, and a float plate at the bottom of the connecting rod.

[0011] Preferably, the bottom of the top plate is provided with a mounting groove, the mounting plate is fixedly connected inside the mounting groove, and the connecting rod is inserted and connected to the middle of the mounting plate.

[0012] Preferably, the limiting member includes a slider fixedly connected to one side of the adjusting plate, the top of the fixed plate having a groove, and the slider being inserted into the inside of the groove.

[0013] Preferably, the connector includes a connecting plate fixedly connected to the bottom of the top plate, and a connecting groove is provided on the other side of the adjusting plate, with the connecting plate inserted into the inside of the connecting groove.

[0014] Preferably, the fixing member includes a positioning plate fixedly connected to the top of the base plate. The bottom of the fixing plate is provided with a limiting groove. The positioning plate is inserted into the inside of the limiting groove. A limiting hole is provided on one side of the positioning plate. A threaded rod is inserted into the inside of the limiting hole. The threaded rod is threaded into the inner wall of one side of the limiting groove. A knob is fixedly connected to one end of the threaded rod.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] This utility model, through the design of a fixed plate, an adjusting plate, a limiting member, a connecting member, and a fixing member, fixes the fixed plate to the top of the base plate during use, and connects the adjusting plate to the top plate through the connecting member. The fixed plate and the adjusting plate protect the reservoir from scratches and bleeding that could affect its use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0018] Figure 2 This is a top view of the structure of this utility model.

[0019] Figure 3 This is a front cross-sectional view of the present invention.

[0020] Figure 4 This utility model Figure 3 Enlarged structural diagram of section A.

[0021] Figure 5 This is a three-dimensional structural diagram of the mounting plate of this utility model.

[0022] In the diagram: 1. Negative pressure drainage mechanism; 101. Base plate; 102. Liquid reservoir; 103. Spring; 104. Top plate; 105. Connection port; 2. Anti-backflow component; 201. Block; 202. Mounting groove; 203. Mounting plate; 204. Connecting rod; 205. Float plate; 3. Protective component; 301. Connecting plate; 302. Connecting groove; 303. Adjusting plate; 304. Slider; 305. Slide groove; 306. Fixing plate; 4. Fixing component; 401. Knob; 402. Threaded rod; 403. Positioning plate; 404. Restriction hole; 405. Restriction groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides, for example Figure 1-5 The backflow prevention negative pressure drainage device shown includes:

[0025] The negative pressure drainage mechanism 1 includes a base plate 101, a liquid storage bladder 102 is provided on the top of the base plate 101, a top plate 104 is provided on the top of the liquid storage bladder 102, a connection port 105 is provided on the top of the top plate 104, and a pusher is provided on the side of the base plate 101 opposite to the top plate 104.

[0026] Anti-backflow component 2 is located at the bottom of the connection port 105;

[0027] The protective component 3 includes a fixed plate 306 disposed on the top of the base plate 101, an adjusting plate 303 disposed on the top of the fixed plate 306, a limiting member disposed at the connection between the adjusting plate 303 and the fixed plate 306, a connecting member disposed at the connection between the top plate 104 and the adjusting plate 303, and a fixing member 4 disposed on the top of the base plate 101.

[0028] It should be noted that the connecting piece is used to connect the top plate 104 and the adjusting plate 303. During use, the top plate 104 drives the adjusting plate 303 to move. The fixed plate 306 is connected to the bottom plate 101 via the fixing piece 4, preventing the fixed plate 306 from moving on top of the bottom plate 101 during use. There are two fixed plates 306 and two adjusting plates 303, both with a semi-circular cross-section. During use, the fixed plate 306 is fixed to the top of the bottom plate 101 via the fixing piece 4, and the adjusting plate 303 is connected to the top plate 104 via the connecting piece. The fixed plate 306 and the adjusting plate 303 protect the reservoir 102 from scratches and bleeding, preventing any impact on its use.

[0029] Specifically, the pushing component includes a spring 103 disposed on the opposite side of the bottom plate 101 and the top plate 104, and the spring 103 is used to push the top plate 104.

[0030] It should be noted that the existing negative pressure drainage device consists of a base plate 101, a reservoir 102, a top plate 104, a spring 103, and a connection port 105. The base plate 101 and the top plate 104 are respectively located at the top and bottom of the reservoir 102. In use, by pressing the top plate 104, the adjusting plate 303 is moved to one side of the fixed plate 306. At this time, the gas inside the reservoir 102 is discharged by pressing, and the pipe is connected to the connection port 105. The spring 103 pushes the top plate 104 at the top of the reservoir 102 away from the base plate 101, so that negative pressure is formed inside the reservoir 102, thereby absorbing the wound exudate.

[0031] Specifically, the anti-backflow component 2 includes a block 201 at the bottom of the connection port 105, a connecting rod 204 at the bottom of the block 201, a float 205 at the bottom of the connecting rod 204, an installation groove 202 at the bottom of the top plate 104, an installation plate 203 fixedly connected inside the installation groove 202, and the connecting rod 204 inserted into the middle of the installation plate 203.

[0032] It should be noted that a hole adapted to the connecting rod 204 is provided in the middle of the mounting plate 203, allowing the connecting rod 204 to pass through the mounting plate 203 to connect the float plate 205 and the block 201. The block 201 is made of rubber, which will deform when squeezed and fill and seal the gap between the objects connected to it. The float plate 205 is made of EPE pearl cotton. When the blood level is higher than the float plate 205, the float plate 205 will be moved upward, and the moving float plate 205 will move the connecting rod 204 and the block 201 upward. The block 201 will then block the bottom of the connection port 105, thereby preventing blood backflow.

[0033] Specifically, the limiting component includes a slider 304 fixedly connected to one side of the adjusting plate 303, and a groove 305 is provided on the top of the fixing plate 306, with the slider 304 inserted into the inside of the groove 305.

[0034] It should be noted that the horizontal longitudinal section of both the slider 304 and the groove 305 is set as an isosceles trapezoid. In use, the isosceles trapezoid design restricts the movement direction of the slider 304, and the slider 304 restricts the movement direction of the adjusting plate 303.

[0035] Specifically, the connector includes a connecting plate 301 fixedly connected to the bottom of the top plate 104, and a connecting groove 302 is provided on the other side of the adjusting plate 303, with the connecting plate 301 inserted into the inside of the connecting groove 302.

[0036] It should be noted that the horizontal longitudinal section of the connecting plate 301 is L-shaped, with one side inserted into the interior of the adjusting plate 303, so that when the top plate 104 needs to be moved, the adjusting plate 303 is moved by the top plate 104.

[0037] Specifically, the fastener 4 includes a positioning plate 403 fixedly connected to the top of the base plate 101. A limiting groove 405 is provided at the bottom of the fixing plate 306. The positioning plate 403 is inserted into the inside of the limiting groove 405. A limiting hole 404 is provided on one side of the positioning plate 403. A threaded rod 402 is inserted into the inside of the limiting hole 404. The threaded rod 402 is threadedly inserted into the inner wall of one side of the limiting groove 405. A knob 401 is fixedly connected to one end of the threaded rod 402.

[0038] It should be noted that the limiting groove 405 is adapted to the positioning plate 403, allowing the positioning plate 403 to be inserted into the limiting groove 405. The positioning plate 403 restricts the movement direction of the fixing plate 306. When it is necessary to fix the position of the positioning plate 403, the knob 401 drives the threaded rod 402 to rotate, causing the rotating threaded rod 402 to move on one side of the fixing plate 306 and insert one end of the threaded rod 402 into the limiting hole 404, so that the positioning plate 403 cannot be moved out of the limiting groove 405, thereby fixing the position of the fixing plate 306 and the position of the base plate 101.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An anti-reflux negative pressure wound therapy device, characterized in that, include: A negative pressure drainage mechanism (1) includes a base plate (101), a liquid storage bladder (102) is provided on the top of the base plate (101), a top plate (104) is provided on the top of the liquid storage bladder (102), a connection port (105) is provided on the top of the top plate (104), and a pusher is provided on the side of the base plate (101) opposite to the top plate (104); Anti-backflow component (2), wherein the anti-backflow component (2) is disposed at the bottom of the connection port (105); The protective component (3) includes a fixed plate (306) disposed on the top of the base plate (101), an adjusting plate (303) disposed on the top of the fixed plate (306), a limiting member disposed at the connection between the adjusting plate (303) and the fixed plate (306), a connecting member disposed at the connection between the top plate (104) and the adjusting plate (303), and a fixing member (4) disposed on the top of the base plate (101).

2. The anti-reflux negative-pressure wound drain according to claim 1, characterized in that The pushing component includes a spring (103) disposed on the opposite side of the bottom plate (101) and the top plate (104), the spring (103) being used to push the top plate (104).

3. The anti-reflux negative-pressure wound drain according to claim 1, characterized in that The anti-backflow component (2) includes a block (201) disposed at the bottom of the connection port (105), a connecting rod (204) disposed at the bottom of the block (201), and a float plate (205) disposed at the bottom of the connecting rod (204).

4. The anti-reflux negative-pressure wound drain according to claim 3, characterized in that The bottom of the top plate (104) is provided with an installation groove (202), and an installation plate (203) is fixedly connected inside the installation groove (202). The connecting rod (204) is inserted and connected to the middle of the installation plate (203).

5. The anti-reflux negative-pressure wound drain according to claim 1, characterized in that The limiting component includes a slider (304) fixedly connected to one side of the adjusting plate (303), and a groove (305) is provided on the top of the fixing plate (306), with the slider (304) inserted into the inside of the groove (305).

6. The anti-reflux negative-pressure wound drain according to claim 5, characterized in that The connector includes a connecting plate (301) fixedly connected to the bottom of the top plate (104), and a connecting groove (302) is provided on the other side of the adjusting plate (303). The connecting plate (301) is inserted into the interior of the connecting groove (302).

7. The anti-reflux negative-pressure wound drain according to claim 1, characterized in that The fixing member (4) includes a positioning plate (403) fixedly connected to the top of the base plate (101). The bottom of the fixing plate (306) is provided with a limiting groove (405). The positioning plate (403) is inserted into the inside of the limiting groove (405). A limiting hole (404) is provided on one side of the positioning plate (403). A threaded rod (402) is inserted into the inside of the limiting hole (404). The threaded rod (402) is threadedly inserted into the inner wall of one side of the limiting groove (405). A knob (401) is fixedly connected to one end of the threaded rod (402).

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