Negative pressure wound therapy dressing

Abstract

This utility model relates to a negative pressure drainage suction cup, comprising: a suction cup with a drainage cavity at its center, the drainage cavity being connected to a connecting tube, and drainage grooves arranged around the drainage cavity on the surface of the suction cup; and a plurality of first protruding ribs, spaced apart on the drainage grooves around the drainage cavity, the first protruding ribs extending radially along the suction cup, with a first sub-groove formed between every two first protruding ribs. By creating drainage grooves around the drainage cavity of the suction cup and arranging a plurality of protruding ribs extending radially along the suction cup within the drainage grooves, forming sub-grooves between the protruding ribs, the accumulated fluid can be guided and dispersed into each sub-groove, ensuring that the accumulated fluid quickly enters the drainage cavity, thereby reducing blockage.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary treatment technology, specifically to a negative pressure drainage suction cup. Background Technology

[0002] Negative pressure wound therapy is an increasingly popular adjunctive treatment method for promoting wound healing in recent years. Vacuum Sealing Drainage (VSD) involves covering or filling the wound with skin or soft tissue defects using a medical dressing containing a drainage tube, then sealing it with a semi-permeable biological membrane to create a closed space. Finally, the drainage tube is connected to a negative pressure source to drain excess blood and fluid from the wound, thereby promoting wound healing.

[0003] In related technologies, the drainage channels of negative pressure drainage suction cups are relatively simple, and the drainage channels are prone to clogging during use, which reduces the drainage effect. Utility Model Content

[0004] Based on the above description, this utility model provides a negative pressure drainage suction cup to solve the problem that drainage channels are easily blocked and the drainage effect is reduced in related technologies.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A negative pressure drainage suction cup, comprising: a suction cup with a drainage cavity in the center, the drainage cavity being connected to a connecting pipe, and a drainage groove being provided around the drainage cavity on the surface of the suction cup; a plurality of first protruding ribs, which are distributed at intervals around the drainage cavity on the drainage groove, the first protruding ribs extending radially along the suction cup, and a first sub-groove being formed between every two first protruding ribs.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, a second protruding rib is provided between two adjacent first protruding ribs, and a second sub-groove is formed between the second protruding rib and the two adjacent first protruding ribs.

[0008] Furthermore, the second protruding rib has multiple ribs, which are evenly distributed in a ring around the circumference of the suction cup, with the drainage cavity as the center.

[0009] Furthermore, the height of the second protruding rib is 1 / 3 to 1 / 2 of the height of the first protruding rib.

[0010] Furthermore, every three of the first protruding ribs form a group, and a second protruding rib is provided between two adjacent groups of the first protruding ribs.

[0011] Furthermore, two first sub-grooves are formed between the three first protruding ribs in each group, and the two first sub-grooves are of the same size.

[0012] Furthermore, the connecting tube has a cavity at one end near the drainage cavity, and the top of the cavity has an opening that communicates with the drainage cavity.

[0013] Furthermore, the top opening area of ​​the cavity is greater than half the area of ​​the drainage cavity.

[0014] Furthermore, the bottom of the cavity is provided with a through hole that communicates with the connecting pipe.

[0015] Furthermore, the inner wall of the cavity is arc-shaped.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0017] By creating a drainage groove around the suction cup drainage cavity and setting multiple protruding ribs extending radially along the suction cup in the drainage groove, sub-grooves are formed between the protruding ribs. This can guide the accumulated liquid to disperse into each sub-groove, ensuring that the accumulated liquid quickly enters the drainage cavity, thereby reducing blockage. Attached Figure Description

[0018] Figure 1 A front view of the negative pressure drainage suction cup provided in an embodiment of this utility model;

[0019] Figure 2 Rear view of the negative pressure drainage suction cup provided in this embodiment of the utility model;

[0020] Figure 3 for Figure 2 Cross-sectional view of AA.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Suction cup; 2. Drainage cavity; 3. Connecting tube; 4. Drainage tube; 5. Drainage groove; 6. First protruding rib; 7. First sub-groove; 8. Second protruding rib; 9. Second sub-groove; 10. Cavity; 11. Through hole; 12. Film. Detailed Implementation

[0023] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0024] This utility model provides a negative pressure drainage suction cup, which can solve the problem of easy clogging of drainage channels and reduced drainage effect in related technologies.

[0025] See Figures 1-3 As shown, a negative pressure drainage suction cup provided in this embodiment of the present invention includes: a suction cup 1 with a transparent film 12 attached to its surface; a drainage cavity 2 is provided in the center of the suction cup 1; a connecting pipe 3 is connected to the drainage cavity 2; a drainage pipe 4 is connected to the connecting pipe 3; a drainage groove 5 is provided around the drainage cavity 2 on the surface of the suction cup 1; and a plurality of first protruding ribs 6 are distributed at intervals around the drainage cavity 2 on the drainage groove 5. The first protruding ribs 6 extend radially along the suction cup 1, and the plurality of first protruding ribs 6 are radially distributed with the drainage cavity 2 as the center. Three first protruding ribs 6 are grouped together, and the three first protruding ribs 6 in each group are distributed at equal angular intervals. A first sub-groove 7 is formed between every two first protruding ribs 6. In this embodiment, by opening a drainage groove 5 around the suction cup drainage cavity 2, and setting multiple first protruding ribs 6 extending radially along the suction cup 1 in the drainage groove 5, and forming first sub-grooves 7 between the first protruding ribs 6, the accumulated liquid can be guided to disperse into each first sub-groove 7, ensuring that the accumulated liquid quickly enters the drainage cavity 2, thereby reducing blockage.

[0026] See Figure 1 As shown, in some embodiments, a second protruding rib 8 is provided between two adjacent first protruding ribs 6, and a second sub-groove 9 is formed between the second protruding rib 8 and two adjacent first protruding ribs 6. In this embodiment, by providing the second sub-groove 9, the accumulated liquid can be guided to be further dispersed into more sub-grooves, ensuring that the accumulated liquid quickly enters the drainage cavity 2 to reduce blockage.

[0027] See Figure 1 As shown, in some embodiments, there are multiple second protruding ribs 8, which are evenly distributed in a ring around the circumference of the suction cup 1, with the drainage cavity 2 as the center. In this embodiment, by providing second protruding ribs 8, the number of sub-grooves is increased, which facilitates further dispersion of accumulated liquid and reduces clogging.

[0028] See Figure 1 As shown, in some embodiments, the height of the second protruding rib 8 is 1 / 3 to 1 / 2 of the height of the first protruding rib 6, which facilitates the flow of accumulated liquid between adjacent second sub-slots 9 and guides the accumulated liquid to the drainage cavity 2.

[0029] See Figure 1 As shown, in some embodiments, the second protruding rib 8 is connected to the middle of the two first protruding ribs 6. In this embodiment, a fan-shaped first sub-groove 7 is formed between the two first protruding ribs 6. The second protruding rib 8 further divides the first sub-groove 7 into two fan-shaped second sub-grooves 9, effectively expanding the drainage area and facilitating the guidance of accumulated liquid to the drainage cavity 2.

[0030] See Figure 1As shown, in some embodiments, every three first protruding ribs 6 form a group, and a second protruding rib 8 is provided between two adjacent groups of first protruding ribs 6. In this embodiment, the first sub-groove 7 is used to guide the accumulated liquid into the drainage cavity 2, and the second sub-groove 9 is used to temporarily contain the accumulated liquid and disperse it before it flows into the drainage cavity 2. By cooperating with the second sub-groove 9 and the first sub-groove 7, the blockage of accumulated liquid can be further reduced.

[0031] See Figure 1 As shown, in some embodiments, two first sub-grooves 7 are formed between the three first protruding ribs 6 in each group, and the two first sub-grooves 7 have the same size. In this embodiment, by forming two first sub-grooves 7 in each group of first protruding ribs 6, the number of first sub-grooves 7 is guaranteed. By making the first sub-grooves 7 have the same size, the area of ​​the first sub-grooves 7 is guaranteed, thereby guiding the accumulated liquid more efficiently.

[0032] See Figure 1 As shown, in some embodiments, the end of the connecting pipe 3 near the drainage cavity 2 is provided with a cavity 10, and the top of the cavity 10 is provided with an opening that communicates with the drainage cavity 2. In this embodiment, by designing a cavity 10 at the end of the connecting pipe 3, a portion of the accumulated liquid can be temporarily stored in the cavity 10, thereby reducing the blockage of the first sub-slot 7 and the second sub-slot 9.

[0033] See Figure 1 As shown, in some embodiments, the top opening area of ​​the cavity 10 is greater than half the area of ​​the drainage cavity 2. In this embodiment, by setting a cavity 10 with a larger opening area, it is easier to collect the accumulated liquid and allow the accumulated liquid to enter the cavity 10 for temporary storage.

[0034] See Figure 1 As shown, in some embodiments, the bottom of the cavity 10 is provided with a through hole 11 communicating with the connecting pipe 3. In this embodiment, the connecting pipe 3 forms a negative pressure flow channel from the cavity 10 to its other end, and the accumulated liquid can enter the connecting pipe 3 through the through hole 11, which facilitates the drainage of the accumulated liquid.

[0035] See Figure 1 As shown, in some embodiments, the inner wall of the cavity 10 is arc-shaped. In this embodiment, by designing the cavity 10 as arc-shaped, the volume of the cavity 10 can be increased, which facilitates the temporary storage of accumulated fluid. In other embodiments, the cavity 10 can also be designed with other special shapes.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0037] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "above," etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below" or "below" of the other element or feature will be oriented "above" the other element or feature. Therefore, the exemplary terms "below" and "below" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0038] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. In the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have the transmission of electrical signals or data between them.

[0039] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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. A negative pressure drainage suction cup, characterized in that, It includes: The suction cup (1) has a drainage cavity (2) in the center, and the drainage cavity (2) is connected to a connecting pipe (3). A drainage groove (5) is provided around the drainage cavity (2) on the surface of the suction cup (1). Multiple first protruding ribs (6) are distributed at intervals around the drainage cavity (2) on the drainage groove (5). The first protruding ribs (6) extend radially along the suction cup (1), and a first sub-groove (7) is formed between every two first protruding ribs (6).

2. The negative pressure drainage suction cup according to claim 1, characterized in that: A second protruding rib (8) is provided between two adjacent first protruding ribs (6), and a second sub-groove (9) is formed between the second protruding rib (8) and the two adjacent first protruding ribs (6).

3. The negative pressure drainage suction cup according to claim 2, characterized in that: The second protruding rib (8) has multiple protrusions, and the multiple second protruding ribs (8) are evenly distributed in a ring around the circumference of the suction cup (1) with the drainage cavity (2) as the center.

4. The negative pressure drainage suction cup according to claim 2, characterized in that: The height of the second protruding rib (8) is 1 / 3 to 1 / 2 of the height of the first protruding rib (6).

5. The negative pressure drainage suction cup according to claim 1, characterized in that: Every three of the first protruding ribs (6) form a group, and a second protruding rib (8) is provided between two adjacent groups of the first protruding ribs (6).

6. The negative pressure drainage suction cup according to claim 5, characterized in that: Two first sub-grooves (7) are formed between the three first protruding ribs (6) of each group, and the two first sub-grooves (7) are the same size.

7. The negative pressure drainage suction cup according to claim 1, characterized in that: The connecting tube (3) has a cavity (10) at one end near the drainage cavity (2), and the top of the cavity (10) has an opening that communicates with the drainage cavity (2).

8. The negative pressure drainage suction cup according to claim 7, characterized in that: The top opening area of ​​the cavity (10) is greater than half the area of ​​the drainage cavity (2).

9. The negative pressure drainage suction cup according to claim 7, characterized in that: The bottom of the cavity (10) is provided with a through hole (11) that communicates with the connecting pipe (3).

10. The negative pressure drainage suction cup according to claim 7, characterized in that: The inner wall of the cavity (10) is arc-shaped.

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