Negative pressure drainage wound protection structure

Abstract

The utility model provides a negative pressure drainage wound protecting structure which comprises a wound protecting assembly, a medical pasting film, a drainage assembly and a flushing pipe. The wound protecting assembly comprises an anti-adhesion layer used for making contact with the skin of a patient, and a drainage layer is arranged outside the anti-adhesion layer. The medical film is used for fixing the wound protecting assembly on the skin of a patient; the drainage assembly comprises a first drainage tube and a second drainage tube, the first drainage tube comprises a first tube body, a plurality of drainage holes are formed in the first tube body, the first tube body is arranged between the drainage layer and the anti-adhesion layer, a first connector is arranged at one end of the first tube body, and the first connector penetrates through the drainage layer to be exposed out of the wound protection assembly; the second drainage tube comprises a second tube body, the first end of the second tube body is provided with a second connector used for being connected with the first connector in an inserted mode, and the second end of the second tube body is used for being connected with a negative pressure source. One end of the flushing pipe is connected with the drainage layer. According to the negative pressure drainage wound protection structure, stable connection between the drainage assembly and the wound protection assembly can be achieved, and stable work during negative pressure drainage is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of negative pressure drainage wound protection, in particular to a negative pressure drainage wound protection structure. Background Art

[0002] Negative pressure wound therapy is a new technology developed in recent years for treating wounds. It uses a biological semipermeable membrane to seal open wounds, uses a special negative pressure machine to generate a certain negative pressure, and acts on the wound after debridement through drainage tubes and dressings.

[0003] Among them, the prior art CN218045979U discloses a negative pressure drainage wound care device, which combines the advantages of the large honeycomb mesh permeability of the three-dimensional interconnected structure of the polyurethane (PU) material and the polyvinyl alcohol (PVA) material that does not adhere to granulation tissue by setting the wound care component as a drainage layer and an anti-adhesion layer. It overcomes the disadvantages of incomplete drainage of pure PVA material and direct contact of pure PU material with the wound surface, causing granulation tissue to be embedded and causing secondary damage to the wound surface, thereby shortening the treatment time.

[0004] However, its drainage tube is connected to the drainage layer on the wound protection component through a suction cup, and the suction cup is adhered to the outer surface of the drainage layer through the adhesive layer at the bottom. However, this connection method is unstable and the suction cup is easy to loosen and fall off, which affects the normal operation of negative pressure drainage. Utility Model Content

[0005] In view of this, the present invention proposes a negative pressure drainage wound protection structure, the purpose of which is to solve the problems of unstable connection and insufficient density between the drainage tube and the wound protection component in the existing negative pressure drainage wound protection device.

[0006] The technical solution of the present utility model is achieved as follows:

[0007] A negative pressure drainage wound protection structure, comprising:

[0008] A wound care component, comprising an anti-adhesion layer for contacting the patient's skin, with a drainage layer provided outside the anti-adhesion layer;

[0009] A medical patch, used to fix the wound care assembly on the patient's skin;

[0010] A drainage assembly, the drainage assembly comprising a first drainage tube and a second drainage tube, the first drainage tube comprising a first tube body, the first tube body being provided with a plurality of drainage holes, the first tube body being arranged between the drainage layer and the anti-adhesion layer, one end of the first tube body being provided with a first connector, the first connector passing through the drainage layer and being exposed outside the wound protection assembly; the second drainage tube comprising a second tube body, the first end of the second tube body being provided with a second connector for plugging with the first connector, the second end of the second tube body being used for connecting to a negative pressure source;

[0011] A flushing tube, one end of which is connected to the drainage layer.

[0012] As a further optional solution, the drainage layer is made of polyurethane material, and the anti-adhesion layer is made of polyvinyl alcohol material.

[0013] As a further optional solution, the drainage assembly and / or the flushing tube are provided in plurality.

[0014] As a further optional solution, the first tube body is arranged in a coiled manner between the drainage layer and the anti-adhesion layer.

[0015] As a further optional solution, the medical film is a transparent medical film.

[0016] As a further optional solution, a flushing pipe connecting pipe is provided on the drainage layer, and the first end of the flushing pipe is connected to the flushing pipe connecting pipe.

[0017] As a further optional solution, the second end of the flushing pipe is provided with a third joint.

[0018] As a further optional solution, a movable cover is provided on the third joint.

[0019] Compared with the prior art, the negative pressure drainage wound protection structure of the present application has at least the following beneficial effects:

[0020] This negative pressure drainage wound protection structure mainly optimizes the structure of the drainage component, sets the drainage component to consist of a first drainage tube and a second drainage tube, and sets the first tube body of the first drainage tube between the drainage layer and the anti-adhesion layer. By plugging the second connector of the second drainage tube into the first connector of the first drainage tube, a stable connection between the drainage component and the wound protection component can be achieved, ensuring stable operation during negative pressure drainage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic front view of a negative pressure drainage wound protection structure according to an embodiment of the present invention;

[0023] Figure 2 for Figure 1 Schematic cross-sectional view of AA in the figure;

[0024] Figure 3 Schematic diagram of the structure of the first drainage tube.

[0025] In the figure: 1, wound care component; 11, anti-adhesion layer; 12, drainage layer; 121, irrigation tube connection;

[0026] 2. Medical film;

[0027] 3. Drainage assembly; 31. First drainage tube; 311. First tube body; 312. Drainage hole; 313. First connector; 32. Second drainage tube; 321. Second tube body; 322. Second connector;

[0028] 4. Flushing pipe; 41. Third joint; 42. Movable cover. DETAILED DESCRIPTION

[0029] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0031] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0032] refer to Figure 1-3 , an embodiment of the present invention shows a negative pressure drainage wound protection structure, comprising a wound protection component 1, a medical film 2, a drainage component 3 and an irrigation tube 4;

[0033] The wound protection component 1 includes an anti-adhesion layer 11 for contacting the patient's skin, and a drainage layer 12 is provided outside the anti-adhesion layer 11; the medical film 2 is used to fix the wound protection component 1 on the patient's skin; the drainage component 3 includes a first drainage tube 31 and a second drainage tube 32, the first drainage tube 31 includes a first tube body 311, and a plurality of drainage holes 312 are opened on the first tube body 311. The first tube body 311 is arranged between the drainage layer 12 and the anti-adhesion layer 11, and one end of the first tube body 311 is provided with a first connector 313, and the first connector 313 passes through the drainage layer 12 and is exposed outside the wound protection component 1; the second drainage tube 32 includes a second tube body 321, and the first end of the second tube body 321 is provided with a second connector 322 for plugging with the first connector 313, and the second end of the second tube body 321 is used to connect to the negative pressure source; one end of the flushing tube 4 is connected to the drainage layer 12.

[0034] Working process:

[0035] Initially, the first drainage tube 31 and the second drainage tube 32 are separated, and the first drainage tube 31 is pre-set on the wound protection component 1; first, the wound protection component 1 is fixed on the patient's skin through the medical film 2, as shown in FIG. Figure 1 and Figure 2 As shown, the second connector 322 of the second drainage tube 32 is then inserted through the medical film 2, and the second connector 322 is sealed and plugged into the first connector 313, thereby completing the arrangement;

[0036] During cleaning, the flushing tube 4 can be used to connect to a syringe or an infusion pump, and physiological saline can be injected into the wound protection component 1 through the flushing tube 4 for flushing; at the same time, the second end of the second tube body 321 is externally connected to a negative pressure source (not shown), and the negative pressure source performs negative pressure drainage to drain out necrotic tissue and exudate, so that harmful substances in the patient's wound can be removed in time, thereby promoting the growth of granulation tissue; of course, the negative pressure source should be connected to a storage container (not shown) so as to store the drained necrotic tissue and exudate to avoid contamination; during the above-mentioned drainage process, the necrotic tissue and exudate first pass through the anti-adhesion layer 11 into the drainage layer 12, and then the necrotic tissue and exudate enter the first tube body 311 through the drainage hole 312, and are then drained away.

[0037] In this way, the negative pressure drainage wound protection structure of this embodiment mainly optimizes the structure of the drainage component 3, and sets the drainage component 3 to be composed of a first drainage tube 31 and a second drainage tube 32. The first tube body 311 of the first drainage tube 31 is set between the drainage layer 12 and the anti-adhesion layer 11. By plugging the second connector 322 of the second drainage tube 32 with the first connector 313 of the first drainage tube 31, a stable connection between the drainage component 3 and the wound protection component 1 can be achieved, ensuring stable operation during negative pressure drainage.

[0038] The above scheme is specific, the drainage layer 12 is made of polyurethane (PU) material, and the anti-adhesion layer 11 is made of polyvinyl alcohol (PVA) material. The drainage layer 12 made of polyurethane (PU) has a honeycomb mesh with a three-dimensional interconnected structure and better permeability; the drainage is thorough, and necrotic tissue and exudate can be quickly drained out, ensuring the timely removal of harmful substances and promoting the growth of granulation tissue; the anti-adhesion layer 11 made of polyvinyl alcohol (PVA) material does not adhere to the granulation tissue and will not cause secondary damage to the wound; the anti-adhesion layer 11 can adapt to various surface wounds and is easy to operate. Since the anti-adhesion layer 11 is in direct contact with the wound, a complete flushing system is added to the anti-adhesion layer 11 to fully flush the wound or administer oxygen, which has a better treatment effect. In this way, the wound protection component 1 fully utilizes the advantages of the honeycomb large mesh permeability of the three-dimensional interconnected structure of the polyurethane (PU) material and the polyvinyl alcohol (PVA) material that does not adhere to the granulation tissue, and will not cause secondary damage to the wound, greatly shortening the treatment cycle and improving the quality of treatment.

[0039] In some embodiments, in order to improve drainage efficiency, the length of the first tube 311 located between the drainage layer 12 and the anti-adhesion layer 11 may be increased.

[0040] Specifically, the number of drainage components 3 can be increased, for example, two drainage components 3 can be set, and two first tube bodies 311 can be set inside the wound protection component 1; the length of the first tube body 311 can also be directly increased, for example, the first tube body 311 can be coiled and set between the drainage layer 12 and the anti-adhesion layer 11; in this way, the negative pressure drainage connection surface between the drainage component 3 and the wound protection component 1 is increased, so that necrotic tissue and exudate can enter the first tube body 311 faster and then be discharged.

[0041] In addition, a plurality of flushing tubes 4 may be provided to increase the efficiency of injecting physiological saline.

[0042] In some embodiments, the medical film 2 is a transparent medical film 2 to facilitate observation of the wound protection component 1.

[0043] In some embodiments, as Figure 1 As shown, the drainage layer 12 is provided with a connecting pipe 121 for the flushing tube 4, to which the first end of the flushing tube 4 is connected. A third connector 41 is provided at the second end of the flushing tube 4, which can be used to connect to an infusion set or syringe. Furthermore, a movable cover 42 is provided on the third connector 41. When flushing is not required, the third connector 41 does not need to be connected to the infusion set or syringe, and the movable cover 42 can be used to seal the third connector 41 to prevent the entry of external bacteria and viruses.

[0044] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, 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 wound protection structure, characterized in that: include: A wound care component, comprising an anti-adhesion layer for contacting the patient's skin, with a drainage layer provided outside the anti-adhesion layer; A medical patch, used to fix the wound care assembly on the patient's skin; A drainage assembly, the drainage assembly comprising a first drainage tube and a second drainage tube, the first drainage tube comprising a first tube body, the first tube body being provided with a plurality of drainage holes, the first tube body being arranged between the drainage layer and the anti-adhesion layer, one end of the first tube body being provided with a first connector, the first connector passing through the drainage layer and being exposed outside the wound protection assembly; the second drainage tube comprising a second tube body, the first end of the second tube body being provided with a second connector for plugging with the first connector, the second end of the second tube body being used for connecting to a negative pressure source; A flushing tube, one end of which is connected to the drainage layer.

2. The negative pressure drainage wound protection structure according to claim 1, characterized in that: The drainage layer is made of polyurethane material, and the anti-adhesion layer is made of polyvinyl alcohol material.

3. The negative pressure drainage wound protection structure according to claim 1, characterized in that: The drainage assembly and / or the flushing tube are provided in plurality.

4. The negative pressure drainage wound protection structure according to claim 1, characterized in that: The first tube body is coiled and arranged between the drainage layer and the anti-adhesion layer.

5. The negative pressure drainage wound protection structure according to claim 1, characterized in that: The medical film is a transparent medical film.

6. The negative pressure drainage wound protection structure according to claim 1, characterized in that: A flushing pipe connecting pipe is provided on the drainage layer, and the first end of the flushing pipe is connected to the flushing pipe connecting pipe.

7. The negative pressure drainage wound protection structure according to claim 6, characterized in that: The second end of the flushing pipe is provided with a third joint.

8. The negative pressure drainage wound protection structure according to claim 7, characterized in that: The third joint is provided with a movable cover.

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