An adjustable fixed negative pressure drainage device

Abstract

This utility model relates to the field of medical device technology and discloses an adjustable fixed negative pressure drainage device, including a negative pressure bottle and a negative pressure box. A first cover plate is snapped onto the upper surface of the negative pressure bottle. An adjustment mechanism is fixedly installed on one side of the midpoint of the upper surface of the first cover plate. The adjustment mechanism includes a fixing plate, a rotating rod rotatably embedded on one side of the fixing plate, a squeezing block movably embedded inside one side of the fixing plate, and a scale plate embedded at the midpoint of one side of the negative pressure bottle. In this utility model, the pressure in the negative pressure bottle can be controlled and adjusted according to the different needs of the patient through the movable plug and the adjustment rod. Simultaneously, the adjustment mechanism can control the flow rate during negative pressure suction, and the fixing frame and fixing plate can better fix the negative pressure bottle and negative pressure box to the patient's limb, making it convenient for the patient to carry and change.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an adjustable fixed negative pressure drainage device. Background Technology

[0002] Negative pressure wound therapy (NPWT) is a new technology developed in recent years for treating wounds. It uses a biological semi-permeable membrane to close open wounds and a special negative pressure machine to generate negative pressure, which is applied to the cleaned wound through drainage tubes and dressings. Current research has shown that this therapy can accelerate blood circulation in the wound area, significantly promote the entry of new blood vessels into the wound, stimulate the growth of granulation tissue, ensure adequate drainage, reduce edema, reduce contamination, inhibit bacterial growth, and directly accelerate wound healing or create conditions for surgical repair. It is a highly efficient, simple, economical, and purely physical therapy that promotes wound healing.

[0003] In the process of developing this application, the inventors discovered the following problems with the prior art: Currently, most existing negative pressure drainage devices, when used to treat patients' wounds, mostly use a negative pressure bottle in the negative pressure device to absorb the accumulated fluid in the patient's body. Since most existing negative pressure drainage devices have difficulty controlling the pressure in the negative pressure bottle, or because the pressure from manual squeezing is too large and unstable, the negative pressure bottle is adsorbed onto surrounding tissues. Therefore, those skilled in the art have provided an adjustable fixed negative pressure drainage device to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an adjustable fixed negative pressure drainage device. The device features a movable plug and an adjusting rod that allow for control and adjustment of the pressure in the negative pressure bottle according to the patient's different needs. The simultaneously installed adjustment mechanism controls the flow rate during negative pressure suction. The fixed frame and fixed plate further secure the negative pressure bottle and negative pressure box to the patient's limb surface, making it convenient for the patient to carry and replace.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An adjustable fixed negative pressure drainage device includes a negative pressure bottle and a negative pressure box. A first cover plate is snapped onto the upper surface of the negative pressure bottle. An adjustment mechanism is fixedly installed on one side of the midpoint of the upper surface of the first cover plate. The adjustment mechanism includes a fixed plate. A rotating rod is rotatably embedded on one side of the fixed plate. A squeezing block is movably embedded inside one side of the fixed plate. A scale plate is embedded at the midpoint of one side of the negative pressure bottle. A second cover plate is snapped onto the upper surface of the negative pressure box. An adjustment rod is movably embedded on one side of the midpoint of the upper surface of the second cover plate. A fixing mechanism is movably installed on the upper part of the outer surface of the adjusting rod. The fixing mechanism includes a fixing block. A screw is rotatably embedded on one side of the fixing block, and a rotating block is rotatably embedded at the midpoint of one side of the fixing block. A rubber block is movably embedded inside the fixing block. A fixing frame is installed on the rear end of the outer surface of the negative pressure bottle and the negative pressure box. A threaded rod is fixedly installed at the midpoint of the front end face of the fixing frame. An adjusting plate is movably embedded on the front end of the fixing frame.

[0006] Furthermore, the rubber block is rotatably sleeved on one end of the outer surface of the screw, the rotating block is threadedly sleeved on the outer surface of the screw, the outer surface of the adjusting rod has three adjusting grooves, the rubber block is embedded in the adjusting grooves, and the fixing block is movably sleeved on the outer surface of the adjusting rod.

[0007] Furthermore, the extrusion block is threaded onto one side of the outer surface of the rotating rod, and a support block is fixedly installed on one side of the lower end face of the fixing plate. The support block is fixedly installed on the upper end face of the first cover plate, and a connecting pipe is embedded at the midpoint of the upper end face of the first cover plate. The fixing plate is sleeved on the outer surface of the connecting pipe.

[0008] Furthermore, a first knob is rotatably embedded on both sides of the upper surface of the first cover plate near the front end and the rear end. The four first knobs are respectively threaded onto the outer surface of the protrusion block on the upper surface of the negative pressure bottle. A gas guide tube is embedded on one side of the midpoint of the upper surface of the first cover plate, and the end of the gas guide tube away from the first cover plate is embedded on one side of the upper surface of the second cover plate.

[0009] Furthermore, a movable plug is movably embedded at the midpoint of the upper surface of the second cover plate, and the adjusting rod movably passes through the midpoint of the lower end of the movable groove. The lower end of the movable plug is located on the inner surface of the negative pressure box. Third knobs are rotatably embedded on both sides of the upper surface of the second cover plate near the front and rear ends. The four third knobs are threaded onto the outer surface of the protruding part on the upper surface of the negative pressure box. A pressing block is fixedly provided on the upper surface of the movable plug.

[0010] Furthermore, a second knob is rotatably embedded at the midpoint of the front end face of the adjustment plate, and the threaded rod passes through the midpoint of the front end face of the adjustment plate, with the second knob threaded onto the outer surface of the threaded rod.

[0011] Furthermore, the rear end face of the fixing frame is rotatably provided with connecting straps on both the front and lower ends, and the rear end face of the fixing frame is rotatably provided with fixing straps on both the front and lower ends.

[0012] This utility model has the following beneficial effects: 1. This utility model proposes an adjustable fixed negative pressure drainage device. After setting a first cover plate on the upper end face of the negative pressure bottle, the adjustment mechanism can be set on the upper end face of the first fixed plate. After the connecting tube is embedded and fixedly set on the upper end of the first cover plate, the adjustment mechanism can be sleeved on the outer surface of the connecting rod. The adjustment mechanism can be adjusted according to the user's needs, so that the squeezing block in the adjustment mechanism squeezes the connecting tube, thereby controlling the flow rate of the accumulated fluid during negative pressure suction. After the movable plug is movably embedded on the upper end face of the negative pressure box, the pressure in the negative pressure bottle can be controlled by pressing the movable plug. The adjustment rod can limit the movable plug after passing through it. At the same time, after opening an adjustment groove and sleeved the fixed mechanism on the outer surface of the adjustment rod, the movable plug can be adjusted to three different pressure levels: high, medium and low, so that the negative pressure drainage device can better treat the patient.

[0013] 2. This utility model proposes an adjustable fixed negative pressure drainage device. A fixed frame, in conjunction with an adjustable plate, clamps and fixes the negative pressure bottle and box, allowing for better installation and removal. A threaded rod fixed to the front end of the fixed frame passes through the adjustable plate, and a second knob on the adjustable plate is threaded onto the outer surface of the threaded rod. Rotating the second knob causes the adjustable plate to press and fix the negative pressure bottle and box located between the fixed frame and the adjustable plate. Simultaneously, a fixing strap and connecting strap on the rear end of the fixed frame allow for convenient binding of the fixed negative pressure bottle and box to the patient's limb, making it easier for the patient to move around and carry the negative pressure drainage device. Attached Figure Description

[0014] Figure 1 This is a first isometric schematic diagram of the present invention; Figure 2 This is a second isometric schematic diagram of the present invention; Figure 3 This is an isometric schematic diagram of the fixing frame of this utility model; Figure 4 This is an isometric schematic diagram of the adjusting rod of this utility model; Figure 5 This is a cross-sectional schematic diagram of the negative pressure bottle and negative pressure box of this utility model; Figure 6 for Figure 5 Enlarged view of point A in the middle; Figure 7 for Figure 5 Enlarged diagram of point B in the middle.

[0015] Legend: 1. First cover plate; 2. Negative pressure bottle; 3. Scale plate; 4. Adjusting plate; 5. Movable plug; 6. Fixing mechanism; 7. Second cover plate; 8. Fixing frame; 9. Negative pressure box; 10. Threaded rod; 11. Connecting strap; 12. Air guide tube; 13. Connecting pipe; 14. Adjusting mechanism; 15. First knob; 16. Fixing strap; 17. Second knob; 18. Adjusting rod; 19. Adjusting groove; 20. Third knob; 21. Pressing block; 601. Fixing block; 602. Rubber block; 603. Screw; 604. Rotating block; 1401. Rotating rod; 1402. Support block; 1403. Squeezing block; 1404. Fixing plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Reference Figures 1 to 7 An adjustable fixed negative pressure drainage device includes a negative pressure bottle 2 and a negative pressure box 9. A first cover plate 1 is snapped onto the upper end face of the negative pressure bottle 2. An adjustment mechanism 14 is fixedly installed on one side of the midpoint of the upper end face of the first cover plate 1. The adjustment mechanism 14 includes a fixed plate 1404. A rotating rod 1401 is rotatably embedded on one side of the fixed plate 1404. A squeezing block 1403 is movably embedded inside one side of the fixed plate 1404. A scale plate 3 is embedded at the midpoint of one side of the negative pressure bottle 2. A second cover plate 7 is snapped onto the upper end face of the negative pressure box 9. An adjustment rod 18 is movably embedded on one side of the midpoint of the upper end face of the second cover plate 7. A fixing mechanism 6 is movably installed on the upper part of the outer surface of the adjusting rod 18. The fixing mechanism 6 includes a fixing block 601. A screw 603 is rotatably embedded on one side of the fixing block 601. A rotating block 604 is rotatably embedded at the midpoint of one side of the fixing block 601. A rubber block 602 is movably embedded inside the fixing block 601. A fixing frame 8 is installed on the rear end of the outer surface of the negative pressure bottle 2 and the negative pressure box 9. A threaded rod 10 is fixedly installed at the midpoint of the front end face of the fixing frame 8. An adjusting plate 4 is movably embedded in the front end of the fixing frame 8.

[0018] Specifically, after the first cover plate 1 is fixed to the upper surface of the negative pressure bottle 2 via the second knob 17, the connecting tube 13 can be embedded and fixed to the upper surface of the first cover plate 1. Simultaneously, after the adjustment mechanism 14 is installed on the upper surface of the first cover plate 1, the connecting tube 13 can be squeezed by adjusting the adjustment mechanism 14, thereby controlling the flow rate during liquid aspiration. Furthermore, after a scale plate 3 is embedded on one side of the negative pressure bottle 2, the volume of liquid in the negative pressure bottle 2 can be better observed and measured. The second cover is fixed to the upper surface of the negative pressure box 9 via the first knob 15. After the plate 7, the adjusting rod 18 and the movable plug 5 can be movably embedded in the upper end face of the second cover plate 7. After the fixing mechanism 6 is movably sleeved on the outer surface of the adjusting rod 18, the position of the fixing mechanism 6 can be adjusted and fixed according to different needs, thereby effectively limiting the pressing length of the movable plug 5, so that the movable plug 5 can be used between high, medium and low negative pressure levels. The fixing frame 8 and the fixing plate 1404 can clamp and fix the negative pressure bottle 2 and the negative pressure box 9, thereby better binding the fixing frame 8 to the patient's limb surface.

[0019] Reference Figure 5 and Figure 7 The rubber block 602 is rotatably sleeved on one end of the outer surface of the screw 603, the rotating block 604 is threadedly sleeved on the outer surface of the screw 603, the outer surface of the adjusting rod 18 has three adjusting grooves 19, the rubber block 602 is embedded in the adjusting grooves 19, and the fixing block 601 is movably sleeved on the outer surface of the adjusting rod 18.

[0020] Specifically, after the rubber block 602, which is embedded in the fixed block 601, is threaded onto the outer surface of the screw 603, the screw 603 can be rotated to move and adjust the rubber block 602. The moving rubber block 602 can be fitted and connected with the adjustment groove 19 opened on the outer surface of the adjustment rod 18, so that the fixing mechanism 6 can be fixed on the outer surface of the adjustment rod 18.

[0021] Reference Figure 5 and Figure 6 The extrusion block 1403 is threaded onto one side of the outer surface of the rotating rod 1401. A support block 1402 is fixedly installed on one side of the lower end face of the fixing plate 1404. The support block 1402 is fixedly installed on the upper end face of the first cover plate 1. A connecting pipe 13 is embedded at the midpoint of the upper end face of the first cover plate 1. The fixing plate 1404 is sleeved on the outer surface of the connecting pipe 13.

[0022] Specifically, after the extrusion block 1403, which is embedded in the fixed plate 1404, is threaded onto the outer surface of the rotating rod 1401, the rotating rod 1401 embedded in the fixed plate 1404 can be rotated by rotating one side of the fixed plate 1404 to rotate the extrusion block 1403 to extrude the connecting pipe 13, thereby controlling the flow rate when the liquid is drawn through the connecting pipe 13.

[0023] Reference Figure 5 The first cover plate 1 has a first knob 15 rotatably embedded on both sides of the upper end face near the front and rear ends. The four first knobs 15 are respectively threaded onto the outer surface of the protrusion block on the upper end face of the negative pressure bottle 2. A gas guide tube 12 is embedded on one side of the midpoint of the upper end face of the first cover plate 1. The end of the gas guide tube 12 away from the first cover plate 1 is embedded on one side of the upper end face of the second cover plate 7.

[0024] Specifically, after the first knob 15 is inserted into the upper end face of the first cover plate 1, the first knob 15 can be threaded onto the protruding part on the upper end face of the suction bottle, so as to better fix the first cover plate 1 to the upper end face of the negative pressure bottle 2. A sealing gasket is provided between the upper end face of the first cover plate 1 and the upper end face of the negative pressure bottle 2 to improve the sealing performance. At the same time, after the air guide tube 12 is inserted into one side of the upper end face of the first cover plate 1, the negative pressure bottle 2 and the negative pressure box 9 can be connected.

[0025] Reference Figure 5 A movable plug 5 is movably embedded at the midpoint of the upper end face of the second cover plate 7. An adjusting rod 18 movably passes through the midpoint of the lower end side of the movable groove. The lower end of the movable plug 5 is located on the inner surface of the negative pressure box 9. A third knob 20 is rotatably embedded on both sides of the upper end face of the second cover plate 7 near the front and rear ends. The four third knobs 20 are threaded onto the outer surface of the protruding part on the upper end face of the negative pressure box 9. A pressing block 21 is fixedly installed on the upper end face of the movable plug 5.

[0026] Specifically, after the third knob 20 is rotated and embedded on the upper end face of the second cover plate 7, the second cover plate 7 can also be fixed to the upper end face of the negative pressure box 9 by the third knob 20. At the same time, a sealing gasket is also provided between the second cover plate 7 and the negative pressure box 9. After the movable plug 5 is inserted through the second cover plate 7 into the negative pressure box 9, a negative pressure state can be formed inside the negative pressure bottle 2 and the negative pressure box 9 by pressing the movable plug 5, which is fixed with the pressing block 21. This allows the negative pressure bottle 2 and the negative pressure box 9 to better absorb the accumulated fluid in the patient's body.

[0027] Reference Figure 3 A second knob 17 is rotatably embedded at the midpoint of the front end face of the adjusting plate 4, and a threaded rod 10 passes through the midpoint of the front end face of the adjusting plate 4. The second knob 17 is threaded onto the outer surface of the threaded rod 10.

[0028] Specifically, after the second knob 17 is inserted into the front end face of the adjusting plate 4, the second knob 17 can be threaded onto the outer surface of the threaded rod 10, so that the adjusting plate 4 can move in the fixed frame 8 when rotated, and clamp and fix the negative pressure bottle 2 and negative pressure box 9.

[0029] Reference Figure 2 and Figure 3 The rear end face of the fixed frame 8 is rotatably provided with connecting belts 11 on the front and lower sides, and the rear end face of the fixed frame 8 is rotatably provided with fixing belts 16 on the front and lower sides.

[0030] Specifically, after the connecting strap 11 and the fixing strap 16 are rotated and installed on the rear end face of the fixation frame 8, the fixation frame 8 can be tied to the surface of the patient's limb. The surface of the connecting strap 11 is fixed with Velcro, so that the fixation frame 8 can be easily adjusted, installed or disassembled and replaced.

[0031] Working principle: In use, the user can connect the drainage tube and the connecting tube 13. After fixing the first cover plate 1, which is embedded with the connecting tube 13, to the upper end of the negative pressure bottle 2 with the second knob 17, the negative pressure bottle 2 and the negative pressure box 9 can be fixed between the fixing frame 8 and the fixing plate 1404. After the threaded rod 10 in the fixing frame 8 passes through the adjusting plate 4, the second knob 17 on the front end of the adjusting plate 4 can be rotated to clamp and fix the negative pressure bottle 2 and the negative pressure box 9. After fixing, the medical staff can move and adjust the position of the fixing mechanism 6 on the outer surface of the adjusting rod 18 as needed. After fixing the fixing mechanism 6 in a suitable position on the outer surface of the adjusting rod 18, the movable plug 5 can be pressed to create a negative pressure state in the negative pressure box 9 and the negative pressure bottle 2. Thus, the accumulated fluid in the patient's body can be absorbed through the connecting tube 13 and the drainage tube. At the same time, the medical staff can also adjust the adjusting mechanism 14 to control the flow rate of the accumulated fluid absorption.

[0032] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable fixed negative pressure drainage device, comprising a negative pressure bottle (2) and a negative pressure box (9), characterized in that: The negative pressure bottle (2) is fitted with a first cover plate (1) on its upper end face. An adjustment mechanism (14) is fixedly installed on one side of the midpoint of the upper end face of the first cover plate (1). The adjustment mechanism (14) includes a fixed plate (1404). A rotating rod (1401) is rotatably embedded on one side of the fixed plate (1404). A squeezing block (1403) is movably embedded inside one side of the fixed plate (1404). A scale plate (3) is embedded at the midpoint of one side of the negative pressure bottle (2). The negative pressure box (9) is fitted with a second cover plate (7) on its upper end face. An adjustment rod (18) is movably embedded on one side of the midpoint of the upper end face of the second cover plate (7). A fixing mechanism (6) is movably provided on the upper part of the outer surface of the adjusting rod (18). The fixing mechanism (6) includes a fixing block (601). A screw (603) is rotatably embedded on one side of the fixing block (601). A rotating block (604) is rotatably embedded at the midpoint of one side of the fixing block (601). A rubber block (602) is movably embedded inside the fixing block (601). A fixing frame (8) is provided on the rear end of the outer surface of the negative pressure bottle (2) and the negative pressure box (9). A threaded rod (10) is fixedly provided at the midpoint of the front end face of the fixing frame (8). An adjusting plate (4) is movably embedded on the front end of the fixing frame (8).

2. The adjustable fixed negative pressure drainage device according to claim 1, characterized in that: The rubber block (602) is rotatably sleeved on one end of the outer surface of the screw (603), the rotating block (604) is threadedly sleeved on the outer surface of the screw (603), the outer surface of the adjusting rod (18) is provided with three adjusting grooves (19), the rubber block (602) is embedded in the adjusting grooves (19), and the fixing block (601) is movably sleeved on the outer surface of the adjusting rod (18).

3. The adjustable fixed negative pressure drainage device according to claim 1, characterized in that: The extrusion block (1403) is threaded onto one side of the outer surface of the rotating rod (1401). A support block (1402) is fixedly installed on one side of the lower end face of the fixing plate (1404). The support block (1402) is fixedly installed on the upper end face of the first cover plate (1). A connecting pipe (13) is embedded at the midpoint of the upper end face of the first cover plate (1). The fixing plate (1404) is sleeved on the outer surface of the connecting pipe (13).

4. The adjustable fixed negative pressure drainage device according to claim 1, characterized in that: The first cover plate (1) has a first knob (15) rotatably embedded on both sides of the upper end face near the front and rear ends. The four first knobs (15) are respectively threaded onto the outer surface of the protrusion block on the upper end face of the negative pressure bottle (2). A gas guide tube (12) is embedded on one side of the midpoint of the upper end face of the first cover plate (1). The end of the gas guide tube (12) away from the first cover plate (1) is embedded on one side of the upper end face of the second cover plate (7).

5. The adjustable fixed negative pressure drainage device according to claim 1, characterized in that: A movable plug (5) is movably embedded at the midpoint of the upper end face of the second cover plate (7). The adjusting rod (18) movably passes through the midpoint of the lower end side of the movable groove. The lower end of the movable plug (5) is set on the inner surface of the negative pressure box (9). A third knob (20) is rotatably embedded on both sides of the upper end face of the second cover plate (7) near the front end and near the rear end. The four third knobs (20) are threaded onto the outer surface of the protruding part on the upper end face of the negative pressure box (9). A pressing block (21) is fixedly set on the upper end face of the movable plug (5).

6. The adjustable fixed negative pressure drainage device according to claim 1, characterized in that: The adjustment plate (4) has a second knob (17) rotatably embedded at the midpoint of its front end face. The threaded rod (10) passes through the midpoint of the front end face of the adjustment plate (4), and the second knob (17) is threaded onto the outer surface of the threaded rod (10).

7. The adjustable fixed negative pressure drainage device according to claim 1, characterized in that: The rear end face of the fixed frame (8) is rotatably provided with connecting belts (11) on the front and lower sides, and the rear end face of the fixed frame (8) is rotatably provided with fixing belts (16) on the front and lower sides.

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