Auxiliary device for promoting wound healing after abscess operation

Abstract

The invention discloses an auxiliary device for promoting wound healing after an abscess operation, and relates to the technical field of medical negative pressure suction instruments. The device comprises a sealing film and a liquid outlet distributor, the liquid outlet distributor is upwards provided with a butt joint plug A, and the butt joint plug A upwards penetrates through the sealing film and is in sealing fit with the sealing film; a liquid outlet pipe; the other end of the liquid outlet pipe is connected with a self-priming pump, and the liquid discharge end of the self-priming pump is connected with a waste liquid container; the liquid inlet distributor is upwards provided with a butt joint plug B; one end of the liquid inlet pipe is arranged on the upper surface of the sealing film and is matched with the B butt joint plug in an inserting manner; a puncture plug is arranged at the other end of the liquid inlet pipe; and a liquid amount adjusting valve is mounted on the liquid inlet pipe. When the self-priming pump is used for sucking liquid medicine, negative pressure generated by throttling of the liquid inlet pipe is used for replacing a traditional negative pressure air source for air pressure negative pressure drainage, cost is lower, and the wound healing speed is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of medical negative pressure suction devices, in particular to an auxiliary device for promoting wound healing after abscess surgery, and the international patent classification number that may be involved is A61M1 / 00. Background Art

[0002] VSD drainage is a technique for treating wounds. It involves placing a medical foam material with a drainage tube on the wound surface, and then sealing the entire wound surface with a biological semipermeable membrane. After connecting to a negative pressure source, a closed negative pressure environment is formed on the wound surface. Negative pressure can effectively drain harmful substances such as exudate, necrotic tissue, and bacteria from the wound surface. Continuous negative pressure suction can promote local blood circulation, stimulate capillary proliferation, and increase blood supply to the wound surface. At the same time, it can also reduce tissue edema, narrow the gap between wound surfaces, and create a good environment for wound repair. For example, in some chronic and difficult-to-heal wounds after trauma, such as diabetic foot ulcers and pressure sores, VSD drainage can significantly improve the condition of the wound surface.

[0003] VSD drainage is expensive, costing about 5,000 yuan per drainage. The cost includes: 1. Material cost: VSD drainage materials include biofilm, medical foam dressing and drainage tube, etc. The prices of materials of different brands and specifications vary. Generally speaking, the cost of a set of VSD drainage materials may be around 1,000-5,000 yuan. For example, some domestically produced VSD materials may be relatively cheap, with a price of about 1,000-2,000 yuan; while imported high-quality materials may reach 3,000-5,000 yuan.

[0004] 2. Operation costs: VSD drainage requires professional medical staff. The operation costs include the labor costs of medical staff and the costs related to the operation. This part of the cost may be around 500-2000 yuan, depending on the level of the hospital, the economic level of the region and other factors. In economically developed areas and tertiary hospitals, the operation costs may be higher.

[0005] VSD negative pressure drainage is generally used in elderly patients with bedsores or diabetics, and the high cost increases the burden on patients. Therefore, a wound healing auxiliary device with lower cost and better effect is needed to improve this situation. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide an auxiliary device for promoting the healing of wounds after abscess surgery in response to the above-mentioned technical deficiencies. The device utilizes the negative pressure generated by the throttling of the liquid inlet pipe when a self-priming pump sucks the medicine to replace the traditional negative pressure gas source for air pressure negative pressure drainage. It no longer relies on expensive biological semipermeable membranes for water vapor exchange, and can provide a better wet negative pressure healing environment, thereby improving the speed of wound healing.

[0007] The technical solution adopted by the present invention is to provide an auxiliary device for promoting wound healing after abscess surgery, comprising A closed film, wherein the closed film is provided with adhesive around the edges; a release film is pre-pasted on the adhesive portion; A liquid distributor, the liquid distributor is located at the front side of the lower surface of the closed membrane; the liquid distributor is provided with an A docking plug upward, the A docking plug passes through the closed membrane upward and is sealed with the closed membrane; A liquid outlet pipe, one end of which is arranged on the upper surface of the sealing film and plugged with the A docking plug; the other end of the liquid outlet pipe is connected to a self-priming pump, and the discharge end of the self-priming pump is connected to a waste liquid container; A liquid inlet distributor, the liquid inlet distributor is located at the rear side of the lower surface of the closed membrane, and the liquid inlet distributor is provided with a B butt plug upward; the B butt plug passes through the closed membrane upward and is sealed with the closed membrane; A liquid inlet pipe, one end of which is arranged on the upper surface of the sealing membrane and is plugged into and matched with the B docking plug; a puncture plug is arranged at the other end of the liquid inlet pipe; and a liquid volume regulating valve is installed on the liquid inlet pipe.

[0008] To further optimize the technical solution, a puncture plug of an auxiliary device for promoting wound healing after abscess surgery is connected to a liquid bag; a liquid medicine for promoting wound healing is encapsulated in the liquid bag; the liquid medicine includes physiological saline mixed with growth factors.

[0009] To further optimize the technical solution, the liquid medicine of an auxiliary device for promoting wound healing after abscess surgery also includes an antibacterial agent.

[0010] To further optimize the technical solution, a drug solution of an auxiliary device for promoting wound healing after abscess surgery also dissolves nitric oxide, and the concentration of nitric oxide ranges from 5 to 25 μmol / L.

[0011] To further optimize the technical solution, a liquid outlet pipe of an auxiliary device for promoting wound healing after abscess surgery is connected to a branch pipe, and the branch pipe is equipped with a hydraulic display device; a flow meter is installed on the pipeline between the discharge end of the self-priming pump and the waste liquid container.

[0012] To further optimize the technical solution, an auxiliary device for promoting postoperative wound healing of abscess also includes a biological filler; the biological filler is placed on the lower surface of the closing membrane to form a support between the wound depression and the closing membrane; the biological filler is a three-dimensional grid structure, and the pore size of the biological filler is between 1.5 mm and 2.5 mm.

[0013] To further optimize the technical solution, a liquid inlet pipe and a liquid outlet pipe of an auxiliary device for promoting wound healing after abscess surgery are arranged side by side after being brought close to each other in the area of ​​the sealing membrane.

[0014] To further optimize the technical solution, an auxiliary device for promoting wound healing after abscess surgery is provided, wherein the liquid inlet at the bottom of the liquid inlet distributor is distributed in a fan shape toward the rear side; and the liquid outlet at the bottom of the liquid outlet distributor is distributed in a fan shape toward the front side.

[0015] The technical solution recorded in the present invention adopts a closed membrane to seal the wound, rather than the biological semipermeable membrane in the prior art. The closed membrane has lower cost. In the present invention, it is not necessary and should not allow the wound to exchange water vapor with the outside. The present invention uses a closed membrane to seal the wound to create a wet wound healing environment. The liquid medicine is sucked by a self-priming pump, and the liquid medicine in the liquid inlet pipe is throttled by a liquid volume regulating valve, so that a liquid negative pressure is generated in the wet healing environment created by the closed membrane. When the osmotic pressure of the physiological saline and the wound environment is balanced, the liquid negative pressure can attract the metabolic products of wound healing and be carried away by the flow of the liquid medicine, so that the wound is in a flowing, smooth and stable wet healing environment in real time, while the traditional VSD negative pressure drainage pipeline is prone to blockage, and the metabolic products retained by the dressing need to be flushed regularly.

[0016] Other technical effects of the present invention will be gradually clarified in the development of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention on the wound surface; Figure 2 Figure 1 Schematic diagram of the decomposition of Figure 3 It is a schematic diagram of pipeline connection of the present invention.

[0018] In the figure, 1. sealing film; 2. adhesive backing; 3. release film; 4. liquid outlet distributor; 5. A docking plug; 6. liquid outlet pipe; 7. self-priming pump; 8. waste liquid container; 9. liquid inlet distributor; 10. B docking plug; 11. liquid inlet pipe; 12. puncture plug; 13. liquid volume regulating valve; 14. liquid bag; 15. hydraulic pressure display device; 16. flow meter; 17. biological filler; 18. liquid inlet; 19. liquid outlet. DETAILED DESCRIPTION

[0019] like Figure 1 , Figure 2 , Figure 3 As shown, an auxiliary device for promoting wound healing after abscess surgery is provided, comprising: The closed film 1, the closed film 1 is provided with an adhesive 2 around; the adhesive 2 parts are pre-pasted with a release film 3; A liquid distributor 4, the liquid distributor 4 is located at the front side of the lower surface of the closed membrane 1; the liquid distributor 4 is provided with an A docking plug 5 upward, the A docking plug 5 passes through the closed membrane 1 upward and is sealed with the closed membrane 1; A liquid outlet pipe 6, one end of which is disposed on the upper surface of the sealing film 1 and is plugged into the A docking plug 5; the other end of the liquid outlet pipe 6 is connected to a self-priming pump 7, and the discharge end of the self-priming pump 7 is connected to a waste liquid container 8; A liquid inlet distributor 9, the liquid inlet distributor 9 is located at the rear side of the lower surface of the closed membrane 1, and the liquid inlet distributor 9 is provided with a B docking plug 10 upward; the B docking plug 10 passes upward through the closed membrane 1 and seals with the closed membrane 1; A liquid inlet pipe 11, one end of which is arranged on the upper surface of the sealing membrane 1 and is plugged into and matched with the B docking plug 10; a puncture plug 12 is arranged at the other end of the liquid inlet pipe 11; and a liquid volume regulating valve 13 is installed on the liquid inlet pipe 11.

[0020] Regarding the moist wound healing environment: The moist environment is conducive to the migration of keratinocytes and can accelerate the epithelialization process of the wound. For example, in clinical practice, a moist environment can shorten the wound healing time for shallow second-degree burn wounds. This is because the moist environment can maintain the activity of cells and provide conditions similar to the physiological state for cell movement, allowing cells to crawl on the wound surface and cover the wound surface faster.

[0021] In addition, a moist wound healing environment can reduce pain: compared with a dry environment, a moist wound environment can avoid the pain caused by wound cracking. When the wound is moist, the nerve endings are relatively less stimulated, just as the skin feels more comfortable when it is moist than when it is dry.

[0022] Furthermore, a moist wound healing environment can reduce scar formation: a suitable moist environment can regulate the inflammatory response of the wound and avoid scar hyperplasia caused by excessive inflammation. In a moist environment, the synthesis and deposition of collagen are more orderly, which helps to reduce the formation of scar tissue.

[0023] The material of the closing film 1 can be a PE film, which is attached to the wound surface. When the self-priming pump 7 sucks the liquid medicine, the wet wound healing environment created is a liquid negative pressure, so it can produce a negative pressure drainage effect, which can draw out tissue fluid and metabolic proteins, and promote blood circulation in the wound area.

[0024] Explanation of the principle of generating liquid negative pressure environment: When the inlet pipe 11 of the self-priming pump 7 is unobstructed and stable, the pressure of the liquid in the inlet pipe 11 is equivalent to the external atmospheric pressure, and the function of the liquid volume regulating valve 13 is to produce throttling, locally reducing the diameter of the inlet pipe 11. Therefore, under the traction of the negative pressure of the self-priming pump 7, liquid negative pressure is generated in the inlet pipe 11, the closed environment between the sealing membrane 1 and the wound surface, and the liquid outlet pipe 6. When the power of the self-priming pump 7 is constant, the flow rate of the liquid volume regulating valve 13 can be adjusted to adjust the liquid negative pressure value; when the opening of the liquid volume regulating valve 13 is constant, the power of the self-priming pump 7 can change the speed of the liquid flushing. In clinical practice, the flushing flow rate of the liquid depends on the area of ​​the wound surface. For example, for a wound surface of 6 cm², the appropriate flow rate is 300 ml / h.

[0025] To further optimize this embodiment, a puncture plug 12 of an auxiliary device for promoting wound healing after abscess surgery is connected to a liquid bag 14; the liquid bag 14 contains a liquid medicine for promoting wound healing; the liquid medicine includes physiological saline mixed with growth factors.

[0026] Growth factors may include 1. epidermal growth factor (EGF), with a concentration range of 1 - 100 μg / L; 2. fibroblast growth factor (FGF), with a concentration range of 10 - 100 μg / L; 3. vascular endothelial growth factor (VEGF), with a concentration range of 5- 50 μg / L.

[0027] To further optimize this embodiment, the liquid medicine of an auxiliary device for promoting wound healing after abscess surgery also includes an antibacterial agent.

[0028] The choice of antibacterial agents may include povidone iodine (concentration range 0.05% - 0.1%), gentamicin (concentration range 0.2% - 0.5%), tinidazole (concentration range 0.5% - 1%) and other anaerobic or broad-spectrum antibacterial agents.

[0029] Further optimizing this embodiment, a liquid medicine of an auxiliary device for promoting wound healing after abscess surgery also dissolves nitric oxide, and the concentration range of nitric oxide is between 5-25 μmol / L. Within the solubility of this concentration range, nitric oxide has a variety of physiological functions of promoting wound healing at low concentrations. It can regulate vascular tension, and an appropriate concentration of NO can promote vasodilation, increase local blood perfusion of the wound, and provide necessary nutrients and oxygen for wound healing.

[0030] To further optimize this embodiment, a liquid outlet pipe 6 of an auxiliary device for promoting wound healing after abscess surgery is connected to a branch pipe, and a hydraulic display device 15 is installed on the branch pipe; a flow meter 16 is installed on the pipeline between the discharge end of the self-priming pump 7 and the waste liquid container 8.

[0031] The hydraulic display device 15 can be a mechanical hydraulic gauge or an electronic hydraulic sensor-display module. The hydraulic display device 15 is used to display the negative pressure value of the liquid display pipe 6 as a reference for adjusting the liquid volume regulating valve 13. The flow meter 16 serves as a reference for adjusting the power of the self-priming pump 7. It is worth noting that the effects of adjusting the liquid volume regulating valve 13 and the power of the self-priming pump 7 on the flow rate and negative pressure value are interrelated. The power of the self-priming pump 7 and the liquid volume regulating valve 13 should be dynamically adjusted according to the readings of the flow meter 16 and the hydraulic display device 15 until the preset flow rate and negative pressure values ​​are met at the same time.

[0032] To further optimize this embodiment, an auxiliary device for promoting postoperative wound healing of abscess further includes a biological filler 17; the biological filler 17 is placed on the lower surface of the closing film 1 to form a support between the wound depression and the closing film 1; the biological filler 17 is a three-dimensional grid structure, and the pore size of the biological filler 17 is between 1.5 mm and 2.5 mm.

[0033] The material of the biological filler 17 can be polyvinyl alcohol (PVA), but compared with the biological filler in the prior art, the biological filler 17 in this embodiment has a larger pore size, and it does not need to and should not play the role of absorbing wound exudate, but only needs to form a support between the wound and the sealing film 1 to prevent the sealing film 1 from excessive elastic collapse under negative pressure conditions. Therefore, the biological filler 17 in this embodiment has a larger gap, is not prone to protein clogging, and has a lower cost.

[0034] Further optimizing this embodiment, the liquid inlet pipe 11 and the liquid outlet pipe 6 of the auxiliary device for promoting wound healing after abscess surgery are arranged side by side after being brought close to each other in the area of ​​the closing film 1. The liquid inlet pipe 11 and the liquid outlet pipe 6 are arranged side by side to facilitate the arrangement of the wire harness, prevent entanglement and compression, and are more comfortable for patients when using.

[0035] To further optimize this embodiment, an auxiliary device for promoting wound healing after abscess surgery is provided, wherein the liquid inlet 18 at the lower portion of the liquid inlet distributor 9 is distributed in a fan shape toward the rear side; and the liquid outlet 19 at the lower portion of the liquid outlet distributor 4 is distributed in a fan shape toward the front side.

[0036] Regarding the liquid inlet distributor 9 and the liquid outlet distributor 4, the liquid inlet 18 at the bottom of the liquid inlet distributor 9 is distributed in a fan shape toward the rear side; the liquid outlet 19 at the bottom of the liquid outlet distributor 4 is distributed in a fan shape toward the front side, and the two fan shapes are distributed in opposite directions. This has the advantage of promoting the full diffusion and flow of the liquid medicine in the wound surface and reducing the flow dead angle.

[0037] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0038] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. An auxiliary device for promoting wound healing after abscess surgery, characterized in that: include A closed film, wherein the closed film is provided with adhesive around the edges; a release film is pre-pasted on the adhesive portion; A liquid distributor, the liquid distributor is located at the front side of the lower surface of the closed membrane; the liquid distributor is provided with an A docking plug upward, the A docking plug passes through the closed membrane upward and is sealed with the closed membrane; A liquid outlet pipe, one end of which is arranged on the upper surface of the sealing film and plugged with the A docking plug; the other end of the liquid outlet pipe is connected to a self-priming pump, and the discharge end of the self-priming pump is connected to a waste liquid container; A liquid inlet distributor, the liquid inlet distributor is located at the rear side of the lower surface of the closed membrane, and the liquid inlet distributor is provided with a B butt plug upward; the B butt plug passes through the closed membrane upward and is sealed with the closed membrane; A liquid inlet pipe, one end of which is arranged on the upper surface of the sealing membrane and is plugged into and matched with the B docking plug; a puncture plug is arranged at the other end of the liquid inlet pipe; and a liquid volume regulating valve is installed on the liquid inlet pipe.

2. The auxiliary device for promoting wound healing after abscess surgery according to claim 1, characterized in that: The puncture plug is connected to a liquid bag; the liquid bag contains a liquid medicine for promoting wound healing; the liquid medicine includes physiological saline mixed with growth factors.

3. The auxiliary device for promoting wound healing after abscess surgery according to claim 2, characterized in that: The medicinal solution also includes an antibacterial agent.

4. An auxiliary device for promoting wound healing after abscess surgery according to claim 2 or 3, characterized in that The medicinal solution also contains dissolved nitric oxide, and the concentration of nitric oxide is in the range of 5-25 μmol / L.

5. The auxiliary device for promoting wound healing after abscess surgery according to claim 1, characterized in that: The liquid outlet pipe is connected with a branch pipe, and the branch pipe is equipped with a hydraulic display device; a flow meter is installed on the pipeline between the liquid discharge end of the self-priming pump and the waste liquid container.

6. The auxiliary device for promoting wound healing after abscess surgery according to claim 1, characterized in that: It also includes biological fillers; the biological fillers are placed on the lower surface of the sealing film to form support between the wound surface depression and the sealing film; the biological fillers are three-dimensional grid structures, and the pore size of the biological fillers is between 1.5 mm and 2.5 mm.

7. The auxiliary device for promoting wound healing after abscess surgery according to claim 1, characterized in that The liquid inlet pipe and the liquid outlet pipe are arranged side by side after being brought close to each other in the area of ​​the closed membrane.

8. The auxiliary device for promoting wound healing after abscess surgery according to claim 1, characterized in that : The liquid inlet at the lower part of the liquid inlet distributor is distributed in a fan shape toward the rear side; the liquid outlet at the lower part of the liquid outlet distributor is distributed in a fan shape toward the front side.

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