Negative pressure drainage kit

Abstract

The utility model relates to the technical field of medical instruments, in particular to a negative pressure drainage kit. The negative pressure drainage kit comprises a drainage tube. The drainage tube is provided with a suction part and a connecting part which are sequentially connected. A drainage cavity is formed in the suction part. And a supporting piece is arranged in the drainage cavity. The supporting piece is connected with the inner wall of the suction part, and the drainage cavity is divided into a plurality of drainage channels. A drainage groove is formed in the outer wall of the suction part. The drainage groove is connected with the drainage channel. And a hollow pipe is arranged in the drainage cavity. The hollow tube extends along the axial direction of the drainage tube to form a connecting part. The side wall of the hollow pipe is connected with the supporting piece. According to the negative pressure drainage kit, the hollow tube is arranged in the drainage cavity of the drainage tube, normal saline or other disinfection solutions can be conveniently injected into a wound through the hollow tube, the wound is effectively cleaned, meanwhile, the drainage tube can be prevented from being blocked by blood clots or tissue fragments through flushing, the smoothness of the drainage tube is kept, and the drainage effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a negative pressure drainage kit. Background Art

[0002] A negative pressure drainage kit is a disposable medical device, usually used after surgery or in trauma treatment, to help drain fluids from the wound, such as blood, pus and other secretions, which helps reduce the risk of infection, promote wound healing, and reduce hospitalization time. The negative pressure drainage kit includes a drainage tube, a negative pressure source, a collection container and connecting parts. One end of the drainage tube is located at the wound, and the other end is connected to the negative pressure source. The negative pressure source can be a manual or electric suction device, which is used to generate negative pressure to help the drainage tube absorb the fluid in the wound. The collection container is used to collect fluid drained from the wound. Connecting parts such as Y-type connectors, three-way valves, etc. are used to connect the drainage tube and the negative pressure source.

[0003] Among them, during the use of the negative pressure drainage kit, the drainage tube is easily blocked by blood clots, tissue fragments or other substances, resulting in insufficient drainage, which will affect the natural healing of the wound.

[0004] A search revealed a squeeze-resistant drainage tube disclosed in Chinese patent document CN208905896U. This tube is an integrally molded tube with a uniform outer tube size. One end of the tube is a cross-shaped tube with an outer groove, and the other end is a circular tube. The intersection of the cross-shaped tube and the circular tube forms a gradually changing circular tube with a cross-shaped inner section. The outer groove gradually transitions to a semi-buried design at the intersection and completely transforms into an inner groove before reaching the circular tube. Multiple protrusions are provided on the inner wall of the circular tube connecting to the intersection. Both the cross-shaped tube and the inner protrusions of the circular tube serve as internal support, preventing drainage blockage and improving drainage efficiency.

[0005] However, during actual use, especially when treating complex infectious wounds, the above-mentioned anti-extrusion drainage tube still has the risk of blockage. In addition to the problem of insufficient drainage, excessive drainage may also occur, making it difficult to meet the needs of regular wound cleaning, thereby affecting the wound healing effect. Summary of the Invention

[0006] The purpose of the present invention is to provide an improved structure of a drainage tube during the use of a negative pressure drainage kit, so as to achieve a flushing function, maintain the patency of the drainage tube, and improve the drainage effect.

[0007] In order to achieve the above purpose, the present invention adopts the following scheme:

[0008] A negative pressure drainage kit includes a drainage tube having a suction portion and a connection portion connected in sequence;

[0009] A drainage cavity is provided inside the suction part, a support is provided in the drainage cavity, the support is connected to the inner wall of the suction part, and the drainage cavity is divided into a plurality of drainage channels. A drainage groove is provided on the outer wall of the suction part, and the drainage groove is connected to the drainage channel.

[0010] A hollow tube is provided inside the drainage cavity, a connecting portion of the hollow tube extends along the axial direction of the drainage tube, and a side wall of the hollow tube is connected to the support member.

[0011] Among them, the support member provided in the drainage cavity divides the cavity into multiple drainage channels. This design can handle the drainage needs of multiple directions or regions at the same time, improve the drainage efficiency, and ensure that the liquid in the wound can be sucked out evenly and effectively. The drainage groove on the outer wall of the suction part is connected to the drainage channel. This structure can increase the surface area of ​​the drainage tube in contact with the wound, thereby enhancing the drainage capacity, especially when dealing with large amounts of secretions or blood. The design of multiple drainage channels and hollow tubes helps prevent blood clots or other substances from clogging the drainage tube. Even if a channel is blocked, other channels can continue to work to ensure smooth drainage. The support member can provide sufficient internal support to maintain the shape and function of the drainage tube, and remain stable even under negative pressure. The hollow tube is used to monitor the properties of the drainage fluid or for drug flushing, and can also serve as an additional drainage channel to improve drainage efficiency.

[0012] Preferably, the support member is a cross bar, which extends along the axial direction of the drainage tube to the connecting portion, and the drainage cavity is divided into four drainage channels.

[0013] Preferably, the support member is a T-shaped bar, which extends along the axial direction of the drainage tube to the connecting portion, and the drainage cavity is divided into three drainage channels.

[0014] Preferably, a central hollow tube is provided in the drainage cavity, and the central hollow tube is arranged at the cross intersection of the cross bars.

[0015] Preferably, a peripheral hollow tube is provided in the drainage cavity, and the peripheral hollow tube is arranged on the inner wall of the drainage tube.

[0016] Preferably, a pair of peripheral hollow tubes are symmetrically arranged along the axis of the drainage tube.

[0017] Preferably, a central hollow tube is provided in the drainage cavity, and the central hollow tube is arranged at the T-intersection of the T-shaped bar.

[0018] Preferably, a visualization line is provided on the sidewall of the drainage tube, and the visualization line is arranged along the axial direction of the drainage tube. In this manner, the visualization line is used to provide a visual marker during imaging examinations such as X-rays or CT scans, so that doctors can accurately locate the position and direction of the drainage tube.

[0019] Compared with the existing technology, the negative pressure drainage kit provided by the utility model has the following substantial features and improvements: the negative pressure drainage kit is convenient for injecting physiological saline or other disinfectant solutions into the wound through the hollow tube by arranging a hollow tube in the drainage cavity of the drainage tube, effectively cleaning the wound, removing necrotic tissue, bacteria and other contaminants, and reducing the risk of infection. Through regular flushing, a more conducive environment for healing can be created for the wound, and the growth of healthy tissue can be promoted. The color and properties of the flushing fluid can provide valuable information about the wound healing process, helping doctors to evaluate the condition of the wound and the treatment effect. At the same time, flushing can prevent the drainage tube from being blocked by blood clots or tissue fragments, ensuring the patency of the drainage tube. Combining the functions of drainage and flushing can improve the overall effect of treatment, shorten recovery time, and reduce complications. In addition, the hollow tube structure design is added to the structure of the support member, which is conducive to the drainage tube to achieve the functions of flushing and balancing pressure, maintains the patency of the drainage tube, and improves the drainage effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of a drainage tube of a negative pressure drainage kit in Example 1 of the present invention.

[0021] Figure 2 yes Figure 1 Front view of the central drainage tube.

[0022] Figure 3 This is a structural schematic diagram of a drainage tube of a negative pressure drainage kit in Example 2 of the present invention.

[0023] Figure 4 This is a schematic structural diagram of a drainage tube of a negative pressure drainage kit in Example 3 of the present invention.

[0024] Figure 5 This is a schematic structural diagram of a drainage tube of a negative pressure drainage kit in Example 4 of the present invention.

[0025] Figure numerals: 1. Suction part; 2. Connecting part; 3. Drainage cavity; 4. Support member; 5. Drainage groove; 6. Central hollow tube; 7. Peripheral hollow tube; 8. Development line; 9. Drainage channel; 10. Cross bar; 11. T-shaped bar. DETAILED DESCRIPTION

[0026] The specific implementation of the present utility model is described in detail below with reference to the accompanying drawings.

[0027] like Figure 1-Figure 4 As shown, a negative pressure drainage kit is proposed in the embodiment of the present invention, which is intended to achieve a flushing function, maintain the patency of the drainage tube, and improve the drainage effect during the process of wound drainage.

[0028] A negative pressure drainage kit proposed in an embodiment of the present invention provides a hollow tube in the drainage cavity of the drainage tube, which facilitates the injection of physiological saline or other disinfectant solutions into the wound through the hollow tube, effectively cleaning the wound, removing necrotic tissue, bacteria and other contaminants, and reducing the risk of infection. The design of multiple drainage channels and hollow tubes helps to prevent blood clots or other substances from clogging the drainage tube. Even if a channel is blocked, other channels can continue to work to ensure smooth drainage. The support member can provide sufficient internal support to maintain the shape and function of the drainage tube, and remain stable even under the action of negative pressure. Adding a hollow tube structure design to the structure of the support member is beneficial to the drainage tube to achieve the functions of flushing and balancing pressure, maintaining the patency of the drainage tube, and improving the drainage effect.

[0029] Example 1

[0030] like Figure 1 Combine Figure 2 As shown, a negative pressure drainage kit includes a drainage tube. The drainage tube has a suction part 1 and a connecting part 2 connected in sequence. A drainage cavity 3 is provided inside the suction part 1. A support member 4 is provided in the drainage cavity 3. The support member 4 is connected to the inner wall of the suction part 1, dividing the drainage cavity 3 into a plurality of drainage channels 9. A drainage groove 5 is provided on the outer wall of the suction part 1. The drainage groove 5 is connected to the drainage channel 9. A hollow tube is provided inside the drainage cavity 3. The hollow tube extends along the axial direction of the drainage tube to the connecting part 2. The side wall of the hollow tube is connected to the support member 4.

[0031] The negative pressure drainage kit also includes a negative pressure source, a collection container, and two connectors. One end of the drainage tube is located at the wound, and the other end is connected to the negative pressure source. The negative pressure source can be a manual or electric suction device that generates negative pressure to help the drainage tube absorb fluid from the wound. The collection container is used to collect fluid drained from the wound. The two connectors, such as a Y-type connector or a three-way valve, are used to connect the drainage tube to the negative pressure source.

[0032] The drainage grooves 5 on the outer wall of the suction section 1 are connected to the drainage channels 9. This structure increases the surface area of ​​the drainage tube in contact with the wound, thereby enhancing drainage capacity, especially when handling large amounts of secretions or blood. The multiple drainage channels 9 and hollow tube design help prevent blood clots or other substances from clogging the drainage tube. Even if one channel is blocked, the other channels continue to function, ensuring smooth drainage. The support member 4 provides sufficient internal support, maintaining the shape and function of the drainage tube and maintaining stability even under negative pressure.

[0033] like Figure 2As shown, the support member 4 is a cross bar 10. The cross bar 10 extends along the axial direction of the drainage tube to the connecting portion 2. The drainage cavity 3 is divided into four drainage channels 9. The support member 4 installed in the drainage cavity 3 divides the cavity into multiple drainage channels 9. This design can simultaneously handle drainage needs in multiple directions or regions, improving drainage efficiency and ensuring that liquid in the wound is evenly and effectively aspirated.

[0034] For example, Figure 2 As shown, the drainage cavity 3 is provided with a central hollow tube 6 and peripheral hollow tubes 7. The central hollow tube 6 is arranged at the intersection of the cross bars 10. The peripheral hollow tubes 7 are arranged on the inner wall of the drainage tube. Both the central hollow tube 6 and the peripheral hollow tubes 7 serve as flushing agents within the drainage tube, facilitating flushing and pressure balance within the drainage tube, maintaining patency and enhancing drainage effectiveness.

[0035] like Figure 1 As shown, a visualization line 8 is provided on the side wall of the drainage tube. The visualization line 8 is arranged along the axial direction of the drainage tube. This arrangement provides a visual marker during imaging examinations such as X-rays or CT scans, allowing doctors to accurately locate the position and direction of the drainage tube.

[0036] When used, the negative pressure drainage kit proposed in Example 1 of the present invention facilitates the injection of physiological saline or other disinfectant solutions into the wound through the hollow tube, effectively cleaning the wound, removing necrotic tissue, bacteria and other contaminants, and reducing the risk of infection. By flushing regularly, a more conducive environment for healing can be created for the wound, promoting the growth of healthy tissue. The color and properties of the flushing fluid can provide valuable information about the wound healing process, helping doctors assess the condition of the wound and the effectiveness of treatment. At the same time, flushing can prevent the drainage tube from being blocked by blood clots or tissue fragments, ensuring the patency of the drainage tube. Combining the functions of drainage and flushing can improve the overall effect of treatment, shorten recovery time, and reduce complications.

[0037] Example 2

[0038] The difference between the negative pressure drainage kit proposed in Example 2 of the present invention and Example 1 is that the drainage cavity 3 of the drainage tube is only provided with a peripheral hollow tube 7, such as Figure 3 As shown, a pair of peripheral hollow tubes 7 are symmetrically arranged along the axis of the drainage tube. The peripheral hollow tubes 7 can also be arranged in a circular pattern with equal spacing along the inner wall of the drainage tube. The number of peripheral hollow tubes 7 can be selected appropriately based on actual flushing needs. The number of peripheral hollow tubes 7 is preferably 2-4.

[0039] Example 3

[0040] The negative pressure drainage kit proposed in Example 3 of the present invention is based on Example 2, and further adds a central hollow tube 6. Figure 4 As shown, a central hollow tube 6 and a peripheral hollow tube 7 are provided in the drainage cavity 3. The central hollow tube 6 is arranged at the cross intersection of the cross bars 10, and a pair of peripheral hollow tubes 7 are symmetrically arranged along the axis of the drainage tube.

[0041] Example 4

[0042] like Figure 5 As shown, support member 4 can also be a T-shaped bar 11. T-shaped bar 11 extends along the axial direction of the drainage tube to connecting portion 2, dividing drainage cavity 3 into three drainage channels 9. A central hollow tube 6 is disposed within drainage cavity 3 and is arranged at the T-shaped intersection of T-shaped bar 11. Peripheral hollow tubes 7 are arranged along the inner wall of the drainage tube.

[0043] The present invention is not limited to the specific technical solutions described in the above embodiments. In addition to the above embodiments, the present invention may also have other implementation methods. For those skilled in the art, any technical solution formed by any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A negative pressure drainage kit, characterized in that: The invention comprises a drainage tube, wherein the drainage tube has a suction part (1) and a connection part (2) connected in sequence; A drainage cavity (3) is provided inside the suction part (1), a support member (4) is provided in the drainage cavity (3), the support member (4) is connected to the inner wall of the suction part (1), and the drainage cavity (3) is divided into a plurality of drainage channels (9), and a drainage groove (5) is provided on the outer wall of the suction part (1), and the drainage groove (5) is connected to the drainage channel (9); A hollow tube is provided inside the drainage cavity (3), and a connecting portion (2) of the hollow tube extends along the axial direction of the drainage tube. The side wall of the hollow tube is connected to a support member (4).

2. The negative pressure drainage kit according to claim 1, characterized in that: The support member (4) is a cross bar (10), and the cross bar (10) extends along the axial direction of the drainage tube to the connecting portion (2). The drainage cavity (3) is divided into four drainage channels (9).

3. The negative pressure drainage kit according to claim 1, characterized in that: The support member (4) is a T-shaped bar (11), and the T-shaped bar (11) extends along the axial direction of the drainage tube to the connecting portion (2). The drainage cavity (3) is divided into three drainage channels (9).

4. The negative pressure drainage kit according to claim 2, characterized in that: A central hollow tube (6) is provided in the drainage cavity (3), and the central hollow tube (6) is arranged at the cross intersection of the cross bars (10).

5. The negative pressure drainage kit according to claim 2, characterized in that: A peripheral hollow tube (7) is provided in the drainage cavity (3), and the peripheral hollow tube (7) is arranged on the inner wall of the drainage tube.

6. The negative pressure drainage kit according to claim 5, characterized in that: A pair of peripheral hollow tubes (7) are symmetrically arranged along the axis of the drainage tube.

7. The negative pressure drainage kit according to claim 3, characterized in that: A central hollow tube (6) is provided in the drainage cavity (3), and the central hollow tube (6) is arranged at the T-shaped intersection of the T-shaped strip (11).

8. The negative pressure drainage kit according to claim 1, characterized in that: A developing line (8) is provided on the side wall of the drainage tube, and the developing line (8) is arranged along the axial direction of the drainage tube.

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