Surgical defect wound infection nursing negative pressure dressing

Abstract

The invention provides a surgical defect wound infection nursing negative pressure dressing, and relates to the technical field of medical instruments. The surgical defect wound infection nursing negative pressure dressing comprises an oil yarn layer, an injector, a flushing pipe, a second multi-way pipe joint, a second branch pipe and a second side hole. A plurality of second branch pipes are arranged between the oil yarn layer and the wound surface, so that the syringe can discharge the cleaning liquid into the flushing pipe, and the cleaning liquid can be uniformly discharged into the second branch pipes through the second multi-way pipe joint; the cleaning liquid is uniformly sprayed to the wound surface and one surface, facing the wound surface, of the oil yarn layer through the second side holes in the second branch pipe, so that the wound surface is effectively flushed, necrotic tissues, germs and the like on the wound surface are thoroughly removed, necrotic tissue fragments and impurities adhered to the surface of the oil yarn layer can be flushed away, and the cleaning effect is good. The impurities are prevented from being attached to the oil yarn layer for a long time, so that the permeability of the oil yarn layer is influenced, and the drainage effect on the percolate is further influenced.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to a negative pressure dressing for nursing surgical defect wound infection. Background Art

[0002] Surgical wound care plays a vital role in the perioperative period of surgical patients. There are various reasons for wound non-healing, such as excessive skin defect on the wound surface, foreign matter in the wound, wound infection, etc. When the wound heals poorly, medical dressings are often used to protect the wound and promote its healing, but traditional methods have many disadvantages, such as long healing time, high risk of infection, and may also cause a variety of complications. Nowadays, these traditional methods have gradually been replaced by negative pressure therapy, and wound negative pressure therapy mainly uses sterile and breathable dressings that can promote granulation growth to completely cover the wound surface. After sealing the wound, the dressing surface is continuously sucked by an aspirator, and a drainage tube is used to achieve the effect of continuous drainage.

[0003] Because the outer surface of the drainage tube is wrapped with an isolation layer, when the drainage tube drains the exudate, necrotic tissue or impurities on the wound surface will adhere to the contact surface between the isolation layer and the wound. If the drainage tube continues to drain, the necrotic tissue or impurities will cover a large area of ​​the contact surface, thereby reducing the permeability of the isolation layer and affecting the subsequent exudate drainage and negative pressure transmission.

[0004] To this end, we have developed a new negative pressure dressing for the care of surgical defect wound infections. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies of the prior art, the present invention provides a negative pressure dressing for the care of surgical defect wound infection, which solves the problem in the prior art that necrotic tissue or impurities on the wound surface will adhere to the contact surface between the isolation layer and the wound, affecting the drainage of wound exudate and the transmission of negative pressure.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a negative pressure dressing for surgical defect wound infection care, comprising a negative pressure dressing layer, the negative pressure dressing layer comprising an oil gauze layer covering the wound surface, a sponge layer covering the oil gauze layer, an antibacterial layer covering the sponge layer, a plurality of first branch tubes arranged in a linear array in the sponge layer, a plurality of groups of first side holes arranged in a circular array on the circumferential side surface of the first branch tubes, one ends of the plurality of first branch tubes are commonly fixedly connected to a first multi-way pipe joint, and a drainage tube is fixedly connected to the total interface of the first multi-way pipe joint.

[0009] A plurality of second branch tubes are arranged in a linear array between the oil gauze layer and the wound surface, a plurality of second side holes are provided in a circular array on the circumferential side of the second branch tubes, both ends of the second branch tubes penetrate the sponge layer, one ends of the plurality of second branch tubes are commonly fixedly connected to a second multi-way pipe joint, and a flushing pipe is fixedly connected to the general interface of the second multi-way pipe joint.

[0010] Preferably, the negative pressure dressing layer is covered with a suction cup, and the suction cup is adsorbed to the skin around the wound surface.

[0011] Preferably, two symmetrical third branch tubes are arranged between the oil gauze layer and the wound surface and on both sides of the plurality of second branch tubes, and the third branch tubes are provided with third side holes in a linear array on one side perpendicular to the wound surface.

[0012] Preferably, both ends of the third branch pipe pass through the sponge layer, one end of the two third branch pipes are commonly fixedly connected to a third multi-way pipe joint, the total interface of the third multi-way pipe joint is fixedly connected to a sewage pipe, and the first multi-way pipe joint, the second multi-way pipe joint and the third multi-way pipe joint are all fixedly connected to the suction cup.

[0013] Preferably, the other ends of the second branch pipe and the third branch pipe are both threadedly connected with sealing covers.

[0014] Preferably, the drainage pipe and one end of the sewage pipe are commonly fixedly connected to a fourth multi-way pipe joint, the fourth multi-way pipe joint general interface is fixedly connected to a connecting pipe, and one end of the connecting pipe is fixedly connected to a negative pressure bottle.

[0015] Preferably, the outer peripheral sides of the drainage pipe and the sewage pipe are fixedly connected with pipe clamp rings.

[0016] Preferably, one end of the flushing tube is fixedly connected to a syringe.

[0017] (III) Beneficial effects

[0018] The present invention provides a negative pressure dressing for surgical defect wound infection care, which has the following beneficial effects:

[0019] 1. The negative pressure dressing for surgical defect wound infection care replaces the traditional sealing film with a suction cup to adapt to various irregularly shaped wounds and establish a closed and sufficient negative pressure drainage environment. At the same time, multiple first branch tubes are evenly distributed in the sponge layer, so that the exudate on the wound is first absorbed by the sponge and then fully absorbed by the first branch tube, avoiding the situation where excessive local fluid in the wound causes untimely drainage.

[0020] 2. The negative pressure dressing for nursing surgical defect wound infection has a plurality of second branch tubes evenly arranged between the oil gauze layer and the wound surface, so that the cleaning fluid in the syringe enters the second branch tube through the flushing tube and the second multi-way tube joint, and then is evenly sprayed onto the wound surface and the side of the oil gauze layer facing the wound surface through the second side hole on the second branch tube, so as to flush away the necrotic tissue and bacteria on the wound surface, and flush away the necrotic tissue fragments and impurities adhering to the oil gauze layer, so as to avoid affecting the permeability of the oil gauze layer and further affecting the drainage effect of the exudate.

[0021] 3. The negative pressure dressing for surgical defect wound infection care covers the wound with an oil gauze layer, utilizing the oil component on the surface of the oil gauze layer to effectively prevent the dressing from adhering to the wound, thus avoiding the new granulation tissue from being torn off when the dressing is changed, thereby delaying the healing process of the wound. The oil in the oil gauze layer can reduce the evaporation of moisture from the wound, keep the wound moist, and thus increase the healing speed of the wound.

[0022] 4. The negative pressure dressing for surgical defect wound infection care has a replacement period of 5-7 days, which reduces the pain of patients caused by repeated dressing changes and wound cleaning. The entire device is made of simple materials, avoids expensive consumables, and reduces the financial burden on patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 is a schematic diagram of the structure of a negative pressure dressing layer;

[0025] Figure 3 It is a cutaway front view of the negative pressure dressing layer;

[0026] Figure 4 It is a cut-away side view of the negative pressure dressing layer;

[0027] Figure 5 It is a schematic diagram of the structure of the sponge layer and the pipe connecting parts.

[0028] Among them, 1. negative pressure dressing layer; 2. oil gauze layer; 3. sponge layer; 4. first branch pipe; 5. first side hole; 6. first multi-way pipe joint; 7. drainage tube; 8. second branch pipe; 9. second side hole; 10. sealing cover; 11. second multi-way pipe joint; 12. flushing tube; 13. suction cup; 14. third branch pipe; 15. third side hole; 16. sewage pipe; 17. fourth multi-way pipe joint; 18. connecting pipe; 19. negative pressure bottle; 20. tube clamp ring; 21. syringe; 22. antibacterial layer; 23. third multi-way pipe joint. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Examples, such as Figure 1 - Figure 5 As shown, an embodiment of the present invention provides a negative pressure dressing for surgical defect wound infection care, including a negative pressure dressing layer 1, wherein the negative pressure dressing layer 1 includes an oil gauze layer 2 covering the wound surface. Wound exudate may cause the dressing to adhere to the wound surface during the healing process, and the oil gauze layer 2 can effectively prevent the occurrence of such adhesion due to the oil component on its surface. If there is no oil gauze layer 2 to separate, when the dressing is replaced, such adhesion will cause the new granulation tissue to be torn off, causing great pain to the patient, and also destroying the healing wound surface, delaying the healing process of the wound. The oil in the oil gauze layer 2 can reduce the evaporation of moisture on the wound surface, so that the wound surface will not be too dry. The appropriate moist environment is conducive to the proliferation and migration of wound surface cells and promotes the growth of granulation tissue. The sponge layer 3 is covered on the oil gauze layer 2, and the antibacterial layer 22 is covered on the sponge layer 3. The antibacterial layer 22 contains some substances with antibacterial properties, such as silver ion coating. Silver ions can inhibit the growth and reproduction of bacteria, and have a good antibacterial effect on common pathogens that cause wound infection, such as Staphylococcus aureus and Escherichia coli, thereby reducing the chance of wound infection.

[0031] Specifically, a plurality of first branch tubes 4 are arranged in a linear array in the sponge layer 3, and a plurality of first side holes 5 are arranged in a circular array around the side of the first branch tube 4 for exudate from the wound. When draining the exudate from the wound, the exudate from the wound may contain substances such as fibrin, blood clots, and necrotic tissue fragments. If these substances directly enter the first branch tube 4, they are easily accumulated in the tube and cause blockage. Covering the first branch tube 4 with the sponge layer 3 can play a filtering role. For wounds with larger areas, the sponge layer 3 can make the exudate on its surface The first branch tubes 4 are evenly distributed inside, and cooperate with the first branch tubes 4 evenly distributed in the sponge layer 3 and the first side holes 5 evenly opened on the first branch tubes 4, so that the first branch tubes 4 can fully utilize the filtering function of the sponge layer 3, and can avoid the situation where there is too much liquid in the wound and the drainage is not timely. One end of the several first branch tubes 4 is fixedly connected with a first multi-way pipe joint 6, and the main interface of the first multi-way pipe joint 6 is fixedly connected with a drainage tube 7, and the exudate absorbed by the several first branch tubes 4 is collected through the first multi-way pipe joint 6 and flows into the drainage tube 7.

[0032] A plurality of second branch pipes 8 are arranged in a linear array between the oil gauze layer 2 and the wound surface, and a plurality of second side holes 9 are arranged in a circumferential array on the side surface of the second branch pipe 8. Both ends of the second branch pipe 8 penetrate the sponge layer 3. One end of the plurality of second branch pipes 8 is commonly fixedly connected to a second multi-way pipe joint 11. The second multi-way pipe joint 11 is fixedly connected to a flushing pipe 12 at its general interface. One end of the flushing pipe 12 is fixedly connected to a syringe 21. When the wound surface needs to be flushed, the cleaning liquid is discharged into the flushing pipe 12 through the syringe 21. After the cleaning liquid flows through the flushing pipe 12, it is evenly discharged into each of the flushing pipes through the second multi-way pipe joint 11. The cleaning liquid is then evenly sprayed onto the wound surface and the side of the oil gauze layer 2 facing the wound surface through the second side hole 9 on the second branch tube 8. On the one hand, the wound surface can be effectively rinsed to completely remove the necrotic tissue and bacteria on the wound surface, thereby preventing the necrotic tissue from remaining on the wound surface, hindering the normal healing process of the wound surface, and causing infection and other adverse consequences. On the other hand, the necrotic tissue fragments and impurities adhered to the surface of the oil gauze layer 2 can also be rinsed off. If these impurities adhere to the oil gauze layer 2 for a long time, they may affect the permeability of the oil gauze layer 2, thereby affecting the drainage effect of the exudate.

[0033] A suction cup 13 is provided on the negative pressure dressing layer 1, and the suction cup 13 is tightly adsorbed to the skin around the wound. The suction cup 13 can be made of silicone material, and plays an important role in replacing the traditional sealing film in this negative pressure dressing system. The suction cup 13 can realize adaptive adjustment according to the contour of the skin around the wound. For wounds of various irregular shapes, the traditional sealing layer often exposes obvious shortcomings. Due to the limitations of its own material and design, the ordinary sealing layer may not be able to fit the skin completely, so that gaps are prone to appear at the sealing edge. However, the suction cup 13 can cope with these problems well. It can be tightly and firmly adsorbed on the skin surface of these complex shapes by virtue of its own good elasticity and strong adsorption force, and effectively seal the wound. This tight sealing effect is crucial to maintaining the stability of the negative pressure environment. A stable negative pressure environment is one of the key factors in promoting wound healing. It can promote blood flow, reduce edema, and facilitate the drainage of exudate. In addition, the suction cup 13 is designed to be a transparent or translucent material. Medical staff can directly observe the real-time condition of the wound through the suction cup 13 without removing the dressing. They can clearly see the color of the exudate. The change from clear to turbid may indicate whether the wound has signs of infection. The amount of exudate can also provide a reference for adjusting the treatment plan. For example, excessive exudate may require a more rapid adjustment of the drainage speed. At the same time, medical staff can also observe changes in wound tissue, such as the growth state of granulation tissue, whether new necrotic tissue appears, etc., and it has the advantage of being easier to disassemble and reinstall, which further improves the work efficiency of medical staff and reduces unnecessary interference to the patient's wound.

[0034] Two symmetrical third branch pipes 14 are arranged between the oil gauze layer 2 and the wound surface and on both sides of the plurality of second branch pipes 8. The third branch pipe 14 is provided with third side holes 15 in a linear array on one side perpendicular to the wound surface, so as to absorb the cleaning liquid mixed with impurities through the third side holes 15 and avoid damaging the wound surface during adsorption by the third side holes 15. The diameters of the third branch pipe 14 and the third side holes 15 can be appropriately increased to avoid blockage of the third branch pipe 14. Both ends of the third branch pipe 14 penetrate the sponge layer 3. One end of the two third branch pipes 14 is fixedly connected with a third multi-way pipe joint 23. The total interface of the third multi-way pipe joint 23 is fixedly connected with a sewage pipe 16. The first multi-way pipe joint 6, the second multi-way pipe joint 11, and the third multi-way pipe joint 23 are all fixedly connected with the suction cup 13. When cleaning the wound surface and the surface of the oil gauze layer 2, the cleaning liquid mixed with necrotic tissue and impurities is absorbed through the third side holes 15 on the two third branch pipes 14 and discharged into the sewage pipe 16 through the third multi-way pipe joint 23.

[0035] The other ends of the second branch tube 8 and the third branch tube 14 are threadedly connected with a sealing cover 10, and the ports of the second branch tube 8 and the third branch tube 14 are sealed by the sealing cover 10, so that the side holes on the second branch tube 8 and the third branch tube 14 can better play their due effects, and the sealing cover 10 will be stuck above the sponge layer 3, thereby limiting the movement of the second branch tube 8 and the third branch tube 14 to a certain extent to avoid touching the wound surface.

[0036] The drainage tube 7 and the sewage pipe 16 are fixedly connected at one end with a fourth multi-way pipe joint 17, and the fourth multi-way pipe joint 17 is fixedly connected to a connecting pipe 18 at its main interface. One end of the connecting pipe 18 is fixedly connected to a negative pressure bottle 19. The negative pressure effect generated by the negative pressure bottle 19 provides suction for the drainage tube 7 and the sewage pipe 16 to absorb the cleaning liquid and the exudate from the wound surface. The outer peripheral sides of the drainage tube 7 and the sewage pipe 16 are fixedly connected with a tube clamp ring 20, and the tube clamp ring 20 is used to control the liquid circulation inside the drainage tube 7 and the sewage pipe 16.

[0037] Working principle: When the exudate from the wound surface is normally absorbed, the tube clamp collar 20 on the drainage tube 7 is opened, and the tube clamp collar 20 on the sewage pipe 16 is closed at the same time. At this time, with the help of the negative pressure effect generated by the negative pressure bottle 19, the exudate absorbed in the sponge layer 3 will be quickly sucked into the first branch pipe 4 through the first side hole 5. Then, the exudate in the first branch pipe 4 is discharged into the drainage tube 7 through the first multi-way pipe joint 6, and then enters the connecting pipe 18 through the fourth multi-way pipe joint 17, and finally flows into the negative pressure bottle 19, so as to achieve efficient drainage of the wound surface exudate;

[0038] When the wound surface and the surface of the oil gauze layer 2 need to be flushed, the pipe clamp collar 20 on the drainage tube 7 needs to be closed, and the pipe clamp collar 20 on the sewage pipe 16 needs to be opened. The cleaning liquid is discharged into the flushing tube 12 through the syringe 21. After the cleaning liquid flows through the flushing tube 12, it is evenly discharged into each second branch pipe 8 through the second multi-way pipe joint 11. Subsequently, the cleaning liquid can be evenly sprayed onto the wound surface and the side of the oil gauze layer 2 facing the wound surface through the second side hole 9 on the second branch pipe 8. In this way, the necrotic tissue and impurities remaining on the wound surface and the oil gauze layer 2 will be mixed into the cleaning liquid. These cleaning fluids containing impurities will be absorbed by the third side holes 15 on the two third branch pipes 14, and finally enter the negative pressure bottle 19 through the drain pipe 16 and the connecting pipe 18, completing the cleaning of the wound surface and the discharge of impurities. When the syringe 21 stops injecting the cleaning fluid, the tube clamp ring 20 on the drain pipe 16 is closed to prevent the third branch pipe 14 from directly adsorbing the granulation tissue on the wound surface when there is no cleaning fluid to absorb.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A negative pressure dressing for surgical defect wound infection care, comprising a negative pressure dressing layer (1), characterized in that: The negative pressure dressing layer (1) comprises an oil gauze layer (2) covering the wound surface, a sponge layer (3) covering the oil gauze layer (2), an antibacterial layer (22) covering the sponge layer (3), a plurality of first branch tubes (4) arranged in a linear array in the sponge layer (3), a plurality of groups of first side holes (5) arranged in a circular array on the circumferential side surface of the first branch tubes (4), one end of the plurality of first branch tubes (4) being fixedly connected to a first multi-way pipe joint (6), and a drainage tube (7) being fixedly connected to the main interface of the first multi-way pipe joint (6); A plurality of second branch tubes (8) are arranged in a linear array between the oil gauze layer (2) and the wound surface, a plurality of groups of second side holes (9) are provided on the circumferential side surface of the second branch tubes (8) in a circumferential array, both ends of the second branch tubes (8) penetrate the sponge layer (3), one end of the plurality of second branch tubes (8) is commonly fixedly connected to a second multi-way pipe joint (11), and the general interface of the second multi-way pipe joint (11) is fixedly connected to a flushing pipe (12).

2. A negative pressure dressing for surgical defect wound infection care according to claim 1, characterized in that: The negative pressure dressing layer (1) is covered with a suction cup (13), and the suction cup (13) is adsorbed on the skin around the wound surface.

3. A negative pressure dressing for surgical defect wound infection care according to claim 2, characterized in that: Two symmetrical third branch tubes (14) are arranged between the oil gauze layer (2) and the wound surface and on both sides of the plurality of second branch tubes (8); the third branch tubes (14) are provided with third side holes (15) in a linear array on one side perpendicular to the wound surface.

4. A negative pressure dressing for surgical defect wound infection care according to claim 3, characterized in that: Both ends of the third branch pipe (14) penetrate the sponge layer (3); one end of the two third branch pipes (14) is commonly fixedly connected to a third multi-way pipe joint (23); the main interface of the third multi-way pipe joint (23) is fixedly connected to a sewage pipe (16); the first multi-way pipe joint (6), the second multi-way pipe joint (11), and the third multi-way pipe joint (23) are all fixedly connected to the suction cup (13).

5. A negative pressure dressing for surgical defect wound infection care according to claim 4, characterized in that: The other ends of the second branch pipe (8) and the third branch pipe (14) are both threadedly connected with a sealing cover (10).

6. A negative pressure dressing for surgical defect wound infection care according to claim 5, characterized in that: The drainage pipe (7) and the sewage pipe (16) are fixedly connected at one end to a fourth multi-way pipe joint (17), the general interface of the fourth multi-way pipe joint (17) is fixedly connected to a connecting pipe (18), and one end of the connecting pipe (18) is fixedly connected to a negative pressure bottle (19).

7. A negative pressure dressing for surgical defect wound infection care according to claim 6, characterized in that: The outer peripheral sides of the drainage pipe (7) and the sewage discharge pipe (16) are both fixedly connected with a pipe clamp ring (20).

8. A negative pressure dressing for surgical defect wound infection care according to claim 7, characterized in that: One end of the flushing tube (12) is fixedly connected to a syringe (21).

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