A closed negative pressure irrigation device for a medicament

CN224777183UActive Publication Date: 2026-09-22ZHONGJIA BAIKANG (FUJIAN) MEDICAL DEVICE CO LTD
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Patent Information

Application Number
CN202521019849.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-22
Publication Date
2026-09-22
Estimated Expiration
2035-05-22

AI Technical Summary

Technical Problem

[0002]一种结合了传统负压引流与药物灌注功能的先进伤口治疗系统,主要用于复杂或感染性伤口的处理,一种结合了传统负压引流与药物灌注功能的先进伤口治疗系统,主要用于复杂或感染性伤口的处理,普通的封闭式负压引流装置在一定程度上改善了引流环境,减少了外界细菌的侵入,然而,这类装置功能相对单一,主要侧重于引流渗出物,对于创口内存在的顽固细菌感染,无法进行针对性的局部药物治疗

Benefits of technology

[0016]本实用新型提供了一种灌注药物的封闭式负压引流装置,具备以下有益效果:

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Abstract

The utility model relates to negative pressure drainage device technical field, and disclose a kind of closed negative pressure drainage device of perfusion medicine, including negative pressure machine A, the bottom end of negative pressure machine A is connected with the hose, the end of the hose is connected with medicine pouring mechanism. The closed negative pressure drainage device of perfusion medicine, by the setting of medicine pouring mechanism, when the device is used, liquid medicine flows into injection tube by connecting hose, injection tube transmits liquid medicine into injection head, and injection head is placed around the wound, to prevent the leakage of liquid medicine, the installation of surrounding paste can preliminarily fix injection head, then use big sealing film to paste outside and be fixed again, then spray head evenly sprays liquid medicine at wound, play the role of convenient perfusion liquid washing disinfection wound, avoid the effective cooperation of lack and drainage process, reduce the therapeutic effect of medicine, slow down the recovery time of wound.
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Description

Technical Field

[0001] This utility model relates to the technical field of negative pressure drainage devices, and in particular to a closed negative pressure drainage device for infusing drugs. Background Technology

[0002] An advanced wound treatment system combining traditional negative pressure drainage and drug irrigation is proposed, primarily for the treatment of complex or infected wounds. While conventional closed negative pressure drainage devices improve the drainage environment and reduce the invasion of external bacteria to some extent, their function is relatively limited, mainly focusing on draining exudate. They cannot provide targeted local drug treatment for stubborn bacterial infections within the wound. When a wound becomes severely infected, drainage alone is insufficient to effectively control the inflammation, often requiring the systemic administration of large amounts of antibiotics. This can not only trigger a series of adverse reactions but also easily lead to bacterial resistance. Therefore, a closed negative pressure drainage device capable of infusing drugs is needed.

[0003] Existing drug infusion methods mostly involve directly applying medication to the wound surface or simply injecting it with a syringe. These methods lack effective coordination with the drainage process, reducing the therapeutic effect of the medication. Installing a specialized infusion structure allows the medication to reach all parts of the wound, effectively avoiding unnecessary interference during the infusion process, ensuring uniform drug distribution, and enhancing the therapeutic effect. The fixed placement of existing waste liquid storage tanks makes it difficult to flexibly adjust according to the actual site conditions, resulting in unreasonable device placement, affecting the use of surrounding medical equipment, or causing inconvenience to medical staff. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The purpose of this invention is to provide a closed negative pressure drainage device for infusing drugs, so as to solve the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a closed negative pressure drainage device for drug infusion, comprising a negative pressure machine A, a connecting hose penetrating the bottom of the negative pressure machine A, a drug infusion mechanism penetrating the end of the connecting hose, a suction pipe penetrating the side of the drug infusion mechanism, a suction assembly penetrating the end of the suction pipe, a placement mechanism attached to the bottom of the suction assembly, the drug infusion mechanism including an injection pipe penetrating the end of the connecting hose, an injection head penetrating the top of the injection pipe, anti-leakage sponges installed around the periphery of the injection head, an installation sticker installed on the outside of the anti-leakage sponges, and a stabilizing plate attached to the bottom of the suction assembly. A rotating shaft is fixedly connected to the bottom surface of the stabilizing plate, a bracket A is rotatably connected to the upper end of the rotating shaft, and a bracket B is rotatably connected to the bottom surface of the bracket A.

[0008] As a further embodiment of this utility model, the liquid extraction assembly includes an adapter hose extending through the end of the liquid extraction tube, and a negative pressure device B is connected to the end of the adapter hose. The negative pressure device B facilitates the creation of a negative pressure inside the pipe to extract waste liquid from the wound.

[0009] As a further embodiment of this utility model, a long flexible tube is provided at the bottom of the negative pressure device B, and a liquid storage tank is provided at the end of the long flexible tube. The liquid storage tank is convenient for storing the extracted wound waste fluid.

[0010] As a further embodiment of this utility model, an adhesive sheet is attached to the bottom surface of the liquid storage tank, and the bottom surface of the adhesive sheet is installed on the top surface of the stabilizing plate, which facilitates balanced support on the bottom surface of the liquid storage tank.

[0011] As a further embodiment of this utility model, a large sealing film is installed on the outside of the injection head, and an injection cavity is provided inside the injection head. A spray head is installed inside the injection cavity to facilitate the uniform spraying of the medicine.

[0012] As a further embodiment of this utility model, a connecting pipe is provided at the top of the negative pressure machine A, and a medicine tank is provided at the top of the connecting pipe. The medicine tank is convenient for storing medicine for rinsing wounds.

[0013] As a further embodiment of this utility model, a hanging plate is installed on the top of the medicine tank, and a connecting column is fixed on the top of the hanging plate, which facilitates the connection of hooks.

[0014] As a further embodiment of this utility model, a rotating column is rotatably connected inside the connecting column, and a hook is fixedly connected to the top of the rotating column, which facilitates the convenient hanging of the medicine container at any time.

[0015] (III) Beneficial Effects

[0016] This invention provides a closed negative pressure drainage device for drug infusion, which has the following beneficial effects:

[0017] 1. This closed negative pressure drainage device for instilling medication, through the setting of the medication instillation mechanism, allows the medication to flow into the injection tube through the connecting hose when the device is to be used. The injection tube then transmits the medication into the injection head. The injection head is placed around the wound, and anti-leakage sponges are placed around it to prevent medication leakage. The surrounding mounting stickers can initially fix the injection head in place. Then, a large sealing film is attached to the outside to fix and seal it again. Afterward, the spray head evenly sprays the medication onto the wound, which facilitates the instillation of medication to rinse and disinfect the wound. This avoids the lack of effective coordination with the drainage process, which reduces the therapeutic effect of the medication and slows down the wound recovery time.

[0018] 2. This closed negative pressure drainage device for infusion of medication, through the setting of the placement mechanism, has a suction tube installed on the side of the anti-leakage sponge to connect to the suction component when the device is to be used. A storage tank is installed below the suction component. In order to facilitate the placement of the storage tank, a stabilizing plate is installed at the bottom of the storage tank. Supports A and B stand upright and rotate at the bottom, which can facilitate the balanced placement of the storage tank and play a role in facilitating stable placement. This avoids the difficulty of flexibly adjusting according to the actual site conditions, which could lead to unreasonable placement of the device, affect the use of surrounding medical equipment, or cause inconvenience to medical staff. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the drug dispensing mechanism of this utility model;

[0021] Figure 3 This is a schematic diagram of the placement mechanism of this utility model;

[0022] Figure 4 This is a schematic diagram of the filling head structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the hook structure of this utility model.

[0024] In the diagram: 1. Negative pressure unit A; 2. Connecting hose; 3. Injection mechanism; 301. Injection pipe; 302. Injection head; 303. Anti-leakage sponge; 304. Mounting sticker; 4. Liquid extraction assembly; 5. Placement mechanism; 501. Stabilizing plate; 502. Rotating shaft; 503. Bracket A; 504. Bracket B; 6. Liquid extraction pipe; 7. Adapter hose; 8. Negative pressure unit B; 9. Long hose; 10. Storage tank; 11. Adhesive sheet; 12. Large sealing film; 13. Connecting pipe; 14. Liquid tank; 15. Suspension plate; 16. Connecting column; 17. Rotating column; 18. Hook. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0026] Please see Figures 1 to 5 This utility model provides a technical solution: a closed negative pressure drainage device for infusing medication, including a negative pressure machine A1, a connecting hose 2 passing through the bottom end of the negative pressure machine A1, and a medication infusion mechanism 3 passing through the end of the connecting hose 2. The medication infusion mechanism 3 avoids the lack of effective coordination with the drainage process, which reduces the therapeutic effect of the medication and slows down the wound recovery time, thereby enhancing the therapeutic effect and improving functionality and practicality. A suction tube 6 passes through the side of the medication infusion mechanism 3, and a suction component 4 passes through the end of the suction tube 6. A placement mechanism 5 is attached to the bottom of the suction component 4. The placement mechanism 5 avoids the difficulty of flexibly adjusting according to the actual site conditions, making it easier to place according to the external environment and increasing convenience.

[0027] The drug dispensing mechanism 3 includes an injection tube 301 that passes through the end of the connecting hose 2. An injection head 302 passes through the top of the injection tube 301. An anti-leakage sponge 303 is installed around the periphery of the injection head 302. An installation sticker 304 is installed on the outside of the anti-leakage sponge 303.

[0028] The placement mechanism 5 includes a stabilizing plate 501 that is attached to the bottom of the liquid extraction assembly 4. A rotating shaft 502 is fixedly connected to the bottom surface of the stabilizing plate 501. A bracket A503 is rotatably connected to the upper end of the rotating shaft 502. A bracket B504 is rotatably connected to the bottom surface of the bracket A503.

[0029] The fluid extraction assembly 4 includes a connecting hose 7 extending through the end of the fluid extraction tube 6. A negative pressure device B8 is connected to the end of the connecting hose 7. The negative pressure device B8 facilitates the extraction of negative pressure from inside the tube to extract waste fluid from the wound.

[0030] The bottom of the negative pressure device B8 is connected to a long flexible tube 9, and the end of the long flexible tube 9 is connected to a liquid storage tank 10, which is convenient for storing the extracted wound waste fluid.

[0031] An adhesive sheet 11 is attached to the bottom surface of the liquid storage tank 10. The bottom surface of the adhesive sheet 11 is installed on the top surface of the stabilizing plate 501, which facilitates balanced support on the bottom surface of the liquid storage tank 10.

[0032] The injection head 302 is equipped with a large sealing film 12 on the outside, and an injection cavity is provided inside the injection head 302. A spray head is installed inside the injection cavity.

[0033] A connecting pipe 13 runs through the top of the negative pressure machine A1, and a medicine tank 14 runs through the top of the connecting pipe 13. The spray head facilitates the even spraying of the medicine.

[0034] A connecting pipe 13 runs through the top of the negative pressure machine A1, and a medicine tank 14 runs through the top of the connecting pipe 13. The medicine tank 14 is convenient for storing medicine for rinsing wounds.

[0035] A hanging plate 15 is installed on the top of the medicine tank 14, and a connecting column 16 is fixed on the top of the hanging plate 15. The connecting column 16 facilitates the connection of the hook 18.

[0036] The connecting column 16 is rotatably connected to a rotating column 17, and a hook 18 is fixedly connected to the top of the rotating column 17. The hook 18 makes it easy to hang the medicine container 14 at any time.

[0037] In this invention, the working steps of the device are as follows:

[0038] First step: When the device is to be used, the medicine flows into the injection tube 301 through the connecting hose 2. The injection tube 301 then transmits the medicine into the injection head 302. The injection head 302 is placed around the wound. The anti-leakage sponge 303 is placed around it to prevent the medicine from leaking. The mounting stickers 304 around it can initially fix the injection head 302. Then, the large sealing film 12 is attached to the outside to fix and seal it again. Then, the spray head evenly sprays the medicine onto the wound.

[0039] Second step: When the device is to be used, a liquid extraction pipe 6 is installed on the side of the anti-leakage sponge 303 and connected to the liquid extraction assembly 4. A liquid storage tank 10 is installed below the liquid extraction assembly 4. In order to facilitate the placement of the liquid storage tank 10, a stabilizing plate 501 is installed at the bottom of the liquid storage tank 10. The brackets A503 and B504 stand upright in a cross-rotation at the bottom, which can facilitate the balanced placement of the liquid storage tank 10.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A closed negative pressure drainage device for drug infusion, comprising a negative pressure unit A (1), characterized in that: The bottom end of the negative pressure machine A (1) is connected to a connecting hose (2), the end of the connecting hose (2) is connected to a drug dispensing mechanism (3), the side of the drug dispensing mechanism (3) is connected to a liquid extraction pipe (6), the end of the liquid extraction pipe (6) is connected to a liquid extraction assembly (4), and the bottom of the liquid extraction assembly (4) is attached to a placement mechanism (5). The drug delivery mechanism (3) includes an injection tube (301) extending through the end of the connecting hose (2), an injection head (302) extending through the top of the injection tube (301), a leak-proof sponge (303) installed around the periphery of the injection head (302), and an installation sticker (304) installed on the outside of the leak-proof sponge (303). The placement mechanism (5) includes a stabilizing plate (501) attached to the bottom of the liquid extraction assembly (4). A rotating shaft (502) is fixedly connected to the bottom surface of the stabilizing plate (501). A bracket A (503) is rotatably connected to the upper end of the rotating shaft (502). A bracket B (504) is rotatably connected to the bottom surface of the bracket A (503).

2. The closed negative pressure drainage device for drug infusion according to claim 1, characterized in that: The liquid extraction assembly (4) includes an adapter hose (7) extending through the end of the liquid extraction tube (6), and the end of the adapter hose (7) is connected to a negative pressure device B (8).

3. The closed negative pressure drainage device for drug infusion according to claim 2, characterized in that: The bottom end of the negative pressure device B (8) is connected to a long flexible tube (9), and the end of the long flexible tube (9) is connected to a liquid storage tank (10).

4. The closed negative pressure drainage device for drug infusion according to claim 3, characterized in that: The bottom surface of the liquid storage tank (10) is attached with an adhesive sheet (11), and the bottom surface of the adhesive sheet (11) is installed on the top surface of the stabilizing plate (501).

5. A closed negative pressure drainage device for drug infusion according to claim 1, characterized in that: The injection head (302) is equipped with a large sealing film (12) on the outside, and an injection cavity is provided inside the injection head (302), and a spray head is installed inside the injection cavity.

6. The closed negative pressure drainage device for drug infusion according to claim 1, characterized in that: The top of the negative pressure machine A (1) is connected to a connecting pipe (13), and the top of the connecting pipe (13) is connected to a medicine tank (14).

7. A closed negative pressure drainage device for drug infusion according to claim 6, characterized in that: The top of the liquid medicine tank (14) is equipped with a hanging plate (15), and the top of the hanging plate (15) is fixedly connected to a column (16).

8. A closed negative pressure drainage device for drug infusion according to claim 7, characterized in that: The connecting column (16) is rotatably connected to a rotating column (17), and a hook (18) is fixedly connected to the top of the rotating column (17).