Fixing device for multiple negative pressure injectors

By designing multiple negative pressure injector fixing devices with self-adhesive base plates and push rod fixing mechanisms, the problem of inconvenient fixing of negative pressure injectors is solved, achieving convenient placement and stable negative pressure suction effect of push rod.

CN223831482UActive Publication Date: 2026-01-27THE THIRD AFFILIATED HOSPITAL OF SUN YAT SEN UNIV
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Patent Information

Application Number
CN202421974199.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-15
Publication Date
2026-01-27
Estimated Expiration
2034-08-15

AI Technical Summary

Technical Problem

In the existing technology, the method of fixing negative pressure syringes is inconvenient, which causes discomfort to patients when changing syringes, and it is difficult to keep the plunger of multiple syringes stable.

Method used

A fixing device for multiple negative pressure syringes was designed, which adopts a self-adhesive base plate and a negative pressure syringe plunger fixing mechanism, including a threaded rod, a cylindrical plate, and a locking mechanism, to achieve convenient placement of the syringes and stable fixing of the plunger.

Benefits of technology

It enables convenient placement of multiple negative pressure syringes and stable fixation of the plunger, simplifies the replacement process, reduces patient discomfort, and improves the efficiency of drainage fluid aspiration.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of syringe auxiliary devices, in particular to a fixing device for a plurality of negative pressure syringes, which comprises a self-adhesive bottom plate arranged on a patient through an adhesive part at the bottom of the self-adhesive bottom plate; a plurality of injector fixing mechanisms are arranged on the self-adhesive bottom plate and are used for pressing a plurality of negative pressure injectors on the self-adhesive bottom plate; a plurality of negative pressure injector push rod fixing mechanisms are arranged on one side of the self-adhesive bottom plate and used for keeping a plurality of negative pressure injector push rods in a stable and fixed state at preset positions; the negative pressure injector push rod fixing mechanism comprises a threaded rod, one side of the self-adhesive bottom plate is fixedly connected with the threaded rod, the outer wall of the threaded rod is sleeved with a barrel plate, and an auxiliary mechanism enabling the threaded rod and the barrel plate to be stably fixed is arranged on the barrel plate. According to the device, a plurality of negative-pressure injectors can be conveniently arranged on the device, and push rods of the plurality of negative-pressure injectors can be conveniently kept in a stable state, so that the operation of sucking drainage liquid at the surgical incision of a patient through negative pressure is realized.
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Description

Technical Field

[0001] This utility model relates to the field of syringe auxiliary devices, and more particularly to a fixing device for multiple negative pressure syringes. Background Technology

[0002] Currently, negative pressure drainage for patients after surgery for dermatofibrosarcoma protuberans involves aspirating with a syringe, fixing the negative pressure device with a rubber band, and then securing the negative pressure device to the patient with tape. The drainage tube is then connected to the negative pressure syringe. By pulling the negative pressure syringe, a stable negative pressure state is maintained, thereby aspirating the drainage fluid from the patient's surgical site.

[0003] We would attach multiple negative pressure syringes to the patient, and the plunger of each syringe needs to be kept in a fixed position so that the syringe can maintain a negative pressure state to aspirate the drainage fluid from the patient's surgical site. However, this method is not easy to install. Each time, it needs to be wrapped with tape to fix it to the body, and the negative pressure syringes need to be replaced frequently, which can cause discomfort to the patient.

[0004] To address this, we designed a fixing device for multiple negative pressure injectors, which allows for convenient placement of multiple negative pressure injectors and keeps the plungers of the multiple negative pressure injectors in a stable state, thereby enabling negative pressure suction of surgical site drainage fluid. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the defects of the existing technology. This utility model proposes a fixing device for multiple negative pressure injectors, which can conveniently place multiple negative pressure injectors on it and conveniently keep the push rods of multiple negative pressure injectors in a stable state, thereby performing negative pressure suction of the patient's surgical site drainage fluid.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a fixing device for multiple negative pressure injectors, comprising:

[0007] A self-adhesive baseboard, which is placed on the patient via an adhesive portion at its bottom;

[0008] The self-adhesive base plate is provided with multiple syringe fixing mechanisms for pressing multiple negative pressure syringes onto the self-adhesive base plate.

[0009] One side of the self-adhesive base plate is provided with multiple negative pressure syringe plunger fixing mechanisms, which are used to keep the multiple negative pressure syringe plungers in a stable and fixed state in a preset position.

[0010] The negative pressure syringe plunger fixing mechanism includes a threaded rod. The threaded rod is fixedly connected to one side of the self-adhesive base plate. A cylindrical plate is sleeved on the outer wall of the threaded rod. An auxiliary mechanism is provided on the cylindrical plate to keep the threaded rod and the cylindrical plate stable and fixed. A fixing plate is fixedly connected to the side of the cylindrical plate away from the threaded rod. An elastic locking mechanism is provided on the fixing plate to lock the plunger baffle of the negative pressure syringe, so that multiple negative pressure syringes maintain a negative pressure state and aspirate the fluid accumulated in the surgical site through the drainage tube.

[0011] Furthermore, the negative pressure injector includes an injection negative pressure cylinder, one side of which is connected to a suction head. A piston is slidably connected inside the injection negative pressure cylinder, and a syringe plunger is fixedly connected to the piston. A plunger baffle is fixedly connected to the side of the syringe plunger away from the injection negative pressure cylinder.

[0012] Furthermore, a drainage tube is connected to the suction head, and the drainage tube is embedded in the patient's body.

[0013] Furthermore, a first baffle and a second baffle are fixedly connected to the self-adhesive base plate, and the injection negative pressure cylinder is placed between the first baffle and the second baffle, with the distance between the first baffle and the second baffle being equal to the length of the injection negative pressure cylinder.

[0014] Furthermore, the syringe fixing mechanism includes a first rotating column, which is rotatably connected to a self-adhesive base plate. A rubber elastic pressure plate is fixedly connected to the outer wall of the first rotating column, and the rubber elastic pressure plate can press against the outer wall of the injection negative pressure cylinder.

[0015] Furthermore, the auxiliary mechanism includes an L-shaped plate, an L-shaped plate is fixedly connected to the cylindrical plate, a circular sleeve is fixedly connected to the L-shaped plate, the threaded rod passes through the groove of the circular sleeve, and two nuts are threadedly connected to the outer wall of the threaded rod, with the two nuts located on both sides of the circular sleeve respectively.

[0016] Furthermore, the elastic locking mechanism includes a fixed column, a fixed column is fixedly connected to the fixed plate, a first locking plate and a second locking plate are rotatably connected to the outer wall of the fixed column, an elastic element is fixedly connected between one side of the first locking plate and the second locking plate, and the other side of the first locking plate and the second locking plate cooperate to block the push rod baffle.

[0017] Furthermore, an adhesive layer is provided on the back of the self-adhesive base plate, and a peelable film is provided on the adhesive layer.

[0018] Compared with the prior art, the beneficial effects of this utility model include:

[0019] The self-adhesive base plate allows multiple negative pressure syringes to be placed on the patient, enabling simultaneous negative pressure aspiration of drainage fluid from multiple surgical sites.

[0020] The combination of the first and second clamping plates allows the push rod baffle of the negative pressure injector to be pressed down.

[0021] The nut and sleeve are designed to work together to maintain a stable negative pressure state in the negative pressure injector to absorb the drainage fluid from the patient's surgical site.

[0022] The device facilitates the replacement of new negative pressure injectors. Attached Figure Description

[0023] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0024] Figure 1 The schematic diagram shows a front view of the device according to one embodiment of the present invention;

[0025] Figure 2 The diagram schematically shows an enlarged structural view of point A of the device according to one embodiment of the present invention;

[0026] Figure 3 The diagram schematically shows an enlarged structural view of point B of the device according to one embodiment of the present invention;

[0027] Figure 4 The schematic diagram shows a side view of the mating structure of the first and second clamping plates of the device according to one embodiment of the present invention.

[0028] Figure 5 The diagram schematically shows a side view of the mating structure of a self-adhesive base plate and an adhesive layer according to one embodiment of the present invention.

[0029] Labels in the diagram: 1. Self-adhesive base plate; 2. First baffle; 3. Second baffle; 4. Drainage tube; 5. Injection negative pressure cylinder; 6. Suction head; 7. First rotating column; 8. Rubber elastic pressure plate; 9. Fixing plate; 10. Syringe plunger; 11. Plunger baffle; 12. Threaded rod; 13. Cylinder plate; 14. Elastic element; 15. Nut; 16. Round sleeve; 17. L-shaped plate; 18. Fixing column; 19. First clamping plate; 20. Second clamping plate; 21. Adhesive layer. Detailed Implementation

[0030] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0031] Example:

[0032] like Figure 1-5 As shown, an adhesive layer 21 is provided on the back of the self-adhesive base plate 1, and a tearable film is provided on the adhesive layer 21.

[0033] Two first baffles 2 are fixedly connected to the self-adhesive base plate 1. The two ends of the injection negative pressure cylinder 5 are wedged between the first baffles 2 and the second baffles 3. The distance between the first baffles 2 and the second baffles 3 is equal to the length of the injection negative pressure cylinder 5, so that the injection negative pressure cylinder 5 is wedged between the first baffles 2 and the second baffles 3.

[0034] One end of the injection negative pressure cylinder 5 is connected to a suction head 6, which is connected to a drainage tube 4. The drainage tube 4 is embedded in the patient's body.

[0035] A piston is slidably connected inside the injection negative pressure cylinder 5, and a syringe plunger 10 is fixedly connected to the piston. A plunger baffle 11 is fixedly connected to the side of the syringe plunger 10 away from the injection negative pressure cylinder 5. The suction head 6, injection negative pressure cylinder 5, piston, syringe plunger 10, and plunger baffle 11 constitute the negative pressure syringe in the prior art.

[0036] Multiple first rotating columns 7 are rotatably connected to the self-adhesive base plate 1. Each first rotating column 7 has a rubber elastic pressure plate 8 fixedly connected to its outer wall. The rubber elastic pressure plate 8 rotates to the outer wall of the injection negative pressure cylinder 5 and squeezes against the injection negative pressure cylinder 5, so that the rubber elastic pressure plate 8 presses on the injection negative pressure cylinder 5, and both the rubber elastic pressure plate 8 and the injection negative pressure cylinder 5 are relatively stably placed on the self-adhesive base plate 1.

[0037] Multiple threaded rods 12 are fixedly connected to the right side of the self-adhesive base plate 1. A cylindrical plate 13 is sleeved on the outer wall of the threaded rod 12. A fixing plate 9 is fixedly connected to the side of the cylindrical plate 13 away from the threaded rod 12.

[0038] An L-shaped plate 17 is fixedly connected to the outer wall of the cylindrical plate 13. A circular sleeve 16 is fixedly connected to the L-shaped plate 17, and a threaded rod 12 passes through the circular sleeve 16. Two nuts 15 are threadedly connected to the outer wall of the threaded rod 12, and the two nuts 15 are located on both sides of the circular sleeve 16. The threads of the two nuts 15 press against both sides of the circular sleeve 16, so that the threaded rod 12 and the cylindrical plate 13 are relatively stably placed together.

[0039] A fixing post 18 is fixedly connected to the fixing plate 9. A first locking plate 19 and a second locking plate 20 are rotatably connected to the outer wall of the fixing post 18, and the first locking plate 19 and the second locking plate 20 are arranged in a cross shape. An elastic element 14 is fixedly connected to one side of the first locking plate 19 and the second locking plate 20. The other side of the first locking plate 19 and the second locking plate 20 cooperate to block the push rod baffle 11.

[0040] In practice, the adhesive layer 21 on the back of the self-adhesive base plate 1 is first attached to the patient. Then, the suction head 6 is connected to the drainage tube 4 implanted in the body, and the syringe plunger 10 is pulled to generate negative pressure in the injection negative pressure cylinder 5.

[0041] Then, the injection negative pressure cylinder 5 is placed on the self-adhesive base plate 1. At this time, the rubber elastic pressure plate 8 is rotated to press down the outer wall of the injection negative pressure cylinder 5. Then, the first clamping plate 19 and the second clamping plate 20 are pressed to open the first clamping plate 19 and the second clamping plate 20, so that the push rod baffle 11 passes through the first clamping plate 19 and the second clamping plate 20. Then, the first clamping plate 19 and the second clamping plate 20 are released so that the push rod baffle 11 is stably placed on the other side of the first clamping plate 19 and the second clamping plate 20.

[0042] Now tighten the two nuts 15 to ensure the sleeve 16 is stably positioned on the threaded rod 12, thus stabilizing the threaded rod 12, the cylinder plate 13, and the fixing plate 9. This allows the injection negative pressure cylinder 5 to be stably placed on the self-adhesive base plate 1 and maintain a stable negative pressure state, enabling the absorption of drainage fluid from the patient's surgical site.

[0043] Multiple negative pressure syringes can be fixed on the self-adhesive base plate 1, and all of the multiple negative pressure syringes are connected to the drainage tube 4 embedded in the body.

[0044] When a new negative pressure injector needs to be replaced, press the corresponding first clamping plate 19 and second clamping plate 20 to move the push rod baffle 11 out of the first clamping plate 19 and second clamping plate 20. Then rotate the rubber elastic pressure plate 8 to stop pressing the negative pressure injector, thus completing the disassembly of the negative pressure injector.

[0045] Then, place the new injection negative pressure cylinder 5 onto the self-adhesive base plate 1. At this time, rotate the rubber elastic pressure plate 8 to press down the outer wall of the injection negative pressure cylinder 5. Then, press the first clamping plate 19 and the second clamping plate 20 to open them, allowing the push rod baffle 11 to pass through the first clamping plate 19 and the second clamping plate 20. Then, release the first clamping plate 19 and the second clamping plate 20 so that the push rod baffle 11 is stably positioned on the other side of the first clamping plate 19 and the second clamping plate 20. Then, tighten the two nuts 15 to stably position the sleeve 16 on the threaded rod 12, thereby stabilizing the threaded rod 12, the cylinder plate 13, and the fixing plate 9, completing the installation of the new negative pressure injector.

[0046] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A fixing device for multiple negative pressure injectors, characterized in that, include: A self-adhesive base plate (1) is placed on the patient by means of an adhesive portion at its bottom; The self-adhesive base plate (1) is provided with multiple syringe fixing mechanisms for pressing multiple negative pressure syringes onto the self-adhesive base plate (1); The self-adhesive base plate (1) is provided with a plurality of negative pressure syringe plunger fixing mechanisms on one side, which are used to keep the plurality of negative pressure syringe plungers in a stable and fixed state at a preset position. The negative pressure syringe plunger fixing mechanism includes a threaded rod (12). The threaded rod (12) is fixedly connected to one side of the self-adhesive base plate (1). A cylindrical plate (13) is sleeved on the outer wall of the threaded rod (12). An auxiliary mechanism is provided on the cylindrical plate (13) to keep the threaded rod (12) and the cylindrical plate (13) stable and fixed. A fixing plate (9) is fixedly connected to the side of the cylindrical plate (13) away from the threaded rod (12). An elastic locking mechanism is provided on the fixing plate (9) to lock the plunger baffle of the negative pressure syringe, so that multiple negative pressure syringes maintain a negative pressure state and aspirate the fluid accumulated in the surgical site through the drainage tube (4).

2. The fixing device for a plurality of negative pressure injectors according to claim 1, characterized in that, The negative pressure syringe includes an injection negative pressure cylinder (5), one side of which is connected to a suction head (6). A piston is slidably connected inside the injection negative pressure cylinder (5), and a syringe push rod (10) is fixedly connected to the piston. A push rod baffle (11) is fixedly connected to the side of the syringe push rod (10) away from the injection negative pressure cylinder (5).

3. The fixing device for a plurality of negative pressure injectors according to claim 2, characterized in that, The suction head (6) is connected to a drainage tube (4), which is embedded in the patient's body.

4. The fixing device for a plurality of negative pressure injectors according to claim 2, characterized in that, The self-adhesive base plate (1) is fixedly connected to a first baffle (2) and a second baffle (3). The injection negative pressure cylinder (5) is placed between the first baffle (2) and the second baffle (3), and the distance between the first baffle (2) and the second baffle (3) is equal to the length of the injection negative pressure cylinder (5).

5. The fixing device for a plurality of negative pressure injectors according to claim 2, characterized in that, The syringe fixing mechanism includes a first rotating column (7), which is rotatably connected to the self-adhesive base plate (1). A rubber elastic pressure plate (8) is fixedly connected to the outer wall of the first rotating column (7), and the rubber elastic pressure plate (8) can press against the outer wall of the injection negative pressure cylinder (5).

6. The fixing device for a plurality of negative pressure injectors according to claim 5, characterized in that, The auxiliary mechanism includes an L-shaped plate (17), which is fixedly connected to the cylindrical plate (13). A round sleeve (16) is fixedly connected to the L-shaped plate (17). The threaded rod (12) passes through the groove of the round sleeve (16), and the outer wall of the threaded rod (12) is threaded with two nuts (15). The two nuts (15) are located on both sides of the round sleeve (16).

7. The fixing device for a plurality of negative pressure injectors according to claim 6, characterized in that, The elastic locking mechanism includes a fixed column (18), which is fixedly connected to the fixed plate (9). The outer wall of the fixed column (18) is rotatably connected to a first locking plate (19) and a second locking plate (20). An elastic element (14) is fixedly connected between one side of the first locking plate (19) and the second locking plate (20). The other side of the first locking plate (19) and the second locking plate (20) cooperate to block the push rod baffle (11).

8. The fixing device for a plurality of negative pressure injectors according to claim 1, characterized in that, The back of the self-adhesive base plate (1) is provided with an adhesive layer (21), and a tearable film is provided on the adhesive layer (21).