An auxiliary device for promoting wound healing after abscess surgery

Abstract

The application discloses a kind of auxiliary devices for promoting abscess postoperative wound healing, it is related to medical negative pressure suction apparatus technical field.It includes closed film, liquid distributor, the liquid distributor is provided with A docking plug upwards, the A docking plug is up through closed film and is sealed with closed film;Liquid outlet pipe;The other end of the liquid outlet pipe is connected with self-priming pump, the liquid outlet end of the self-priming pump is connected with waste liquid container;Liquid inlet distributor, the liquid inlet distributor is provided with B docking plug upwards;Liquid inlet pipe, one end of the liquid inlet pipe is arranged on the upper surface of closed film and is inserted with the B docking plug joint cooperation;The other end of the liquid inlet pipe is provided with puncture plug;Liquid quantity regulating valve is installed on the liquid inlet pipe.The application uses self-priming pump when sucking liquid medicine, because the negative pressure generated by throttling of liquid inlet pipe, instead of traditional negative pressure air source carries out air pressure negative pressure drainage, cost is lower, and the speed of wound healing is improved.

Description

Technical Field

[0001] This invention relates to the field of medical negative pressure suction devices, and in particular to an auxiliary device for promoting wound healing after abscess surgery, which may be related to the international patent classification number A61M1 / 00. Background Technology

[0002] VSD (Vacuum-Assisted Surgery) is a wound treatment technique. It involves placing a medical foam tube with drainage tubing at the wound site, then sealing the entire wound with a semi-permeable membrane. Connecting a negative pressure source creates a closed negative pressure environment within the wound. This negative pressure effectively drains exudate, necrotic tissue, and harmful substances such as bacteria. Continuous negative pressure suction promotes local blood circulation, stimulates capillary proliferation, and increases blood supply to the wound. Simultaneously, it reduces tissue edema, narrows wound gaps, and creates a favorable environment for wound repair. For example, in some chronic, difficult-to-heal wounds following trauma, such as diabetic foot ulcers and pressure sores, VSD can significantly improve the wound condition.

[0003] VSD referral marketing is relatively expensive, costing around 5000 yuan per session. Its costs include: 1. Material Costs: VSD drainage materials include biofilms, medical foam dressings, and drainage tubes. Prices vary depending on the brand and specifications. Generally, a set of VSD drainage materials may cost between 1000 and 5000 yuan. For example, some domestically produced VSD materials may be relatively cheaper, costing around 1000-2000 yuan; while high-quality imported materials may reach 3000-5000 yuan.

[0004] 2. Procedure Costs: VSD drainage requires professional medical personnel. Procedure costs include the labor costs of the medical personnel and other surgical-related expenses. This cost may range from 500 to 2000 yuan, depending on factors such as the hospital's level and the region's economic situation. In economically developed areas and at top-tier hospitals, the procedure costs may be higher.

[0005] VSD (Vacuum-assisted closure) is commonly used for elderly patients with pressure ulcers or diabetic patients, but its high cost increases the burden on patients. Therefore, a lower-cost and more effective wound healing aid 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 wound healing after abscess surgery, which addresses the above-mentioned technical deficiencies. The device utilizes the negative pressure generated by the throttling of the inlet tube when the self-priming pump draws up the medicine, replacing the traditional negative pressure drainage from the air source. It no longer relies on expensive biological semi-permeable membranes for water vapor exchange and can provide a more effective moist negative pressure healing environment, thereby improving the speed of wound healing.

[0007] The technical solution adopted in this invention is: to provide an auxiliary device for promoting wound healing after abscess surgery, comprising: A sealing film, wherein the sealing film has an adhesive backing around its perimeter; and a release film is pre-attached to the adhesive backing area. A liquid distributor is located on the front side of the lower surface of the sealing membrane; the liquid distributor has an A-type connector that extends upward through the sealing membrane and seals with it. A liquid outlet pipe, one end of which is disposed on the upper surface of the sealed membrane and is plugged into the A-type connector; 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 is located on the rear side of the lower surface of the sealed membrane, and a B-type connector is provided on the liquid inlet distributor facing upward; the B-type connector passes through the sealed membrane upward and is sealed with the sealed membrane. The inlet tube has one end located on the upper surface of the sealed membrane and is plugged into the B connector; the other end of the inlet tube is equipped with a puncture plug; and a liquid volume regulating valve is installed on the inlet tube.

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

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

[0010] To further optimize this technical solution, the solution of an auxiliary device for promoting wound healing after abscess surgery also contains dissolved nitric oxide, with the concentration of nitric oxide ranging from 5 to 25 μmol / L.

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

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

[0013] To further optimize this technical solution, the inlet and outlet pipes of an auxiliary device for promoting wound healing after abscess surgery are arranged side by side after being brought together within the area of ​​the closed membrane.

[0014] Further optimizing this technical solution, an auxiliary device for promoting wound healing after abscess surgery is provided, wherein the inlet of the fluid distributor is arranged in a fan shape at the rear; and the outlet of the fluid distributor is arranged in a fan shape at the front.

[0015] The technical solution described in this invention uses a sealing membrane to close the wound, instead of the biological semi-permeable membrane used in existing technologies. The sealing membrane is less expensive, and in this invention, it is neither necessary nor advisable to allow moisture exchange between the wound and the outside environment. This invention utilizes a sealing membrane to close the wound, creating a moist wound healing environment. A self-priming pump draws in the medication, and a flow control valve throttles the medication in the inlet tube. This generates a negative pressure within the moist healing environment created by the sealing membrane. When the osmotic pressure of the saline solution and the wound's internal environment is balanced, the negative pressure draws out metabolic waste products from wound healing, which are then carried away by the flow of the medication. This ensures the wound remains in a constantly flowing, smooth, and stable moist healing environment. In contrast, traditional VSD (vacuum-assisted closure) drainage systems are prone to clogging and require periodic flushing of the dressing to remove retained metabolic waste products.

[0016] Other technical effects of the present invention will gradually become clear as the embodiments are described. Attached Figure Description

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

[0018] In the diagram, 1. Sealing film; 2. Adhesive backing; 3. Release film; 4. Liquid distributor; 5. A connector; 6. Liquid outlet pipe; 7. Self-priming pump; 8. Waste liquid container; 9. Liquid inlet distributor; 10. B connector; 11. Liquid inlet pipe; 12. Puncture plug; 13. Liquid volume regulating valve; 14. Liquid bag; 15. Hydraulic display device; 16. Flow meter; 17. Biological packing material; 18. Liquid inlet; 19. Liquid outlet. Detailed Implementation

[0019] like Figure 1 , Figure 2 , Figure 3 As shown, an auxiliary device for promoting wound healing after abscess surgery is provided, comprising: A sealing film 1, wherein adhesive 2 is provided around its perimeter; a release film 3 is pre-attached to the adhesive 2 portion; A liquid distributor 4 is located on the front side of the lower surface of the sealing membrane 1; the liquid distributor 4 is provided with an A-connection plug 5, which passes through the sealing membrane 1 and is sealed to the sealing membrane 1. The outlet pipe 6 has one end disposed on the upper surface of the sealing membrane 1 and is plugged into the A docking plug 5; the other end of the 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 is located on the rear side of the lower surface of the sealing membrane 1, and a B-connection plug 10 is provided on the liquid inlet distributor 9; the B-connection plug 10 passes through the sealing membrane 1 and is sealed with the sealing membrane 1. The inlet pipe 11 has one end disposed on the upper surface of the sealing membrane 1 and is plugged into the B docking plug 10; the other end of the inlet pipe 11 is provided with a puncture plug 12; and a liquid volume regulating valve 13 is installed on the inlet pipe 11.

[0020] Regarding the moist wound healing environment: A 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 healing time of superficial second-degree burns. This is because a moist environment can maintain cell activity and provide conditions similar to physiological states for cell movement, enabling cells to crawl and cover the wound more quickly.

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

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

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

[0024] Explanation of the principle behind generating a liquid negative pressure environment: With the inlet pipe 11 unobstructed and stable, the pressure of the medication in the self-priming pump 7 is equivalent to the external atmospheric pressure. The function of the flow regulating valve 13 is to throttle the flow, locally reducing the diameter of the inlet pipe 11. Therefore, under the negative pressure traction of the self-priming pump 7, negative liquid pressure is generated in the inlet pipe 11, the sealed environment between the sealing membrane 1 and the wound, and the outlet pipe 6. With the power of the self-priming pump 7 constant, adjusting the flow rate of the flow regulating valve 13 can adjust the magnitude of the negative liquid pressure; with the opening of the flow regulating valve 13 constant, adjusting the power of the self-priming pump 7 can change the irrigation speed of the medication. Clinically, the irrigation flow rate depends on the area of ​​the wound; for example, for a wound of 6 cm², the appropriate flow rate is 300 ml / h.

[0025] In a further optimization of 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 medicinal solution that promotes wound healing; the medicinal solution 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 solution of an auxiliary device for promoting wound healing after abscess surgery also includes an antibacterial agent.

[0028] The choice of antibacterial agents can include povidone-iodine (concentration range 0.05% - 0.1%), gentamicin (concentration range 0.2% - 0.5%), tinidazole (concentration range 0.5% - 1%), etc., which are antibacterial agents targeting anaerobic bacteria or broad-spectrum antibacterial agents.

[0029] To further optimize this embodiment, the solution of an auxiliary device for promoting wound healing after abscess surgery also contains dissolved nitric oxide, with a concentration range of 5-25 μmol / L. Within this concentration range, nitric oxide exhibits various physiological functions to promote wound healing at low concentrations. It can regulate vascular tone; appropriate concentrations of NO can promote vasodilation, increase local blood perfusion at the wound site, and provide necessary nutrients and oxygen for wound healing.

[0030] In a further optimization of this embodiment, the 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 displays the negative pressure value of the liquid pipe 6, serving as a reference for adjusting the liquid flow 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 adjusting the liquid flow regulating valve 13 and the power of the self-priming pump 7 has an interrelated effect on the flow rate and negative pressure value. The power of the self-priming pump 7 and the liquid flow regulating valve 13 should be dynamically adjusted based on the readings of the flow meter 16 and the hydraulic display device 15 until the preset flow rate and negative pressure values ​​are simultaneously met.

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

[0033] The biological filler 17 can be made of polyvinyl alcohol (PVA), but compared to biological fillers in the prior art, the biological filler 17 in this embodiment has a larger pore size. It does not need to, and should not, function to absorb wound exudate; it only needs to provide support between the wound and the closure membrane 1 to prevent excessive elastic collapse of the closure membrane 1 under negative pressure. Therefore, the biological filler 17 in this embodiment has larger pores, is less prone to protein blockage, and is less costly.

[0034] To further optimize this embodiment, the inlet tube 11 and outlet tube 6 of an auxiliary device for promoting wound healing after abscess surgery are arranged side-by-side after being brought together within the area of ​​the sealing membrane 1. The side-by-side arrangement of the inlet tube 11 and outlet tube 6 facilitates the management of the wire harness, prevents tangling and kinking, and makes it more comfortable for the patient to use.

[0035] Further optimizing this embodiment, an auxiliary device for promoting wound healing after abscess surgery is provided, wherein the inlet 18 at the lower part of the inlet distributor 9 is distributed in a fan shape to the rear; and the outlet 19 at the lower part of the outlet distributor 4 is distributed in a fan shape to the front.

[0036] Regarding the inlet distributor 9 and the outlet distributor 4, the inlet 18 at the bottom of the inlet distributor 9 is distributed in a fan shape towards the rear; the outlet 19 at the bottom of the outlet distributor 4 is distributed in a fan shape towards the front. The fan shapes of the two are opposite to each other. This arrangement promotes the full diffusion and flow of the medicine in the wound and reduces dead zones.

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

[0038] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

Claims

1. An auxiliary device for promoting wound healing after abscess surgery, characterized in that: include A sealing film, wherein the sealing film has an adhesive backing around its perimeter; and a release film is pre-attached to the adhesive backing area. A liquid distributor is located on the front side of the lower surface of the sealing membrane; the liquid distributor is provided with an A-connection plug facing upward, the A-connection plug passing through the sealing membrane and sealingly engaging with the sealing membrane; The liquid outlet pipe has one end disposed on the upper surface of the sealed membrane and is plugged into 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 is located on the rear side of the lower surface of the sealing membrane, and a B-connection plug is provided on the liquid inlet distributor facing upward; the B-connection plug passes through the sealing membrane upward and is sealed with the sealing membrane. The inlet tube has one end disposed on the upper surface of the sealed membrane and is plugged into the B-type connector; the other end of the inlet tube is provided with a puncture plug; and a liquid volume regulating valve is installed on the inlet tube. The liquid volume regulating valve is configured to remain in a partially open throttling state during the operation of the self-priming pump; the self-priming pump and the liquid volume regulating valve work together to generate a liquid negative pressure in the closed environment between the sealing membrane and the wound through the throttling effect of the liquid volume regulating valve; the liquid negative pressure causes the medicine to continuously enter from the inlet pipe and the waste liquid to continuously exit from the outlet pipe, and the two are synchronized in time and uninterrupted.

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 drug solution that promotes wound healing; the drug solution 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 liquid medicine 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 solution also contains dissolved nitric oxide, with a concentration ranging from 5 to 25 μmol / L.

5. The auxiliary device for promoting wound healing after abscess surgery according to claim 1, characterized in that: The outlet pipe is connected to a branch pipe, and the branch pipe is equipped with a hydraulic display device; a flow meter is installed on the pipe between the 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 filler; the biological filler is placed on the lower surface of the closure membrane to form support between the wound depression and the closure membrane; the biological filler has a three-dimensional mesh structure and the pore size of the biological filler 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 inlet and outlet pipes are arranged side by side after being brought together within the area of ​​the sealed membrane.

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

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