A portable wound negative pressure therapy device

Abstract

The utility model discloses a portable wound negative pressure treatment device concretely relates to wound treatment technical field, including base, the base bottom wall four corners all are equipped with universal wheel, the base bottom wall is equipped with the sliding slot, the sliding slot is rotatably connected with two -way screw rod in, two -way screw rod outside symmetry of thread is equipped with two sliding blocks, the stable base plate is equipped below the base, the articulated link has the arm lever between two sliding blocks and stable base plate, four telescopic rods are connected together between stable base plate upper surface four corners and base bottom wall, the fixed welding of base side wall has the connecting base, the connecting base top end sliding connection has the push -rod, a plurality of limit holes are equipped with equally apart from both ends of push -rod, one limit bolt is screw -connected on both sides of connecting base, through the stable placement of the stable base plate whole device of moving down, make four universal wheel and ground contact through the stable base plate of moving up simultaneously, convenient for removal and transport.

Description

Technical Field

[0001] This utility model relates to the field of wound treatment technology, and more specifically, to a portable negative pressure wound therapy device. Background Technology

[0002] Negative pressure wound therapy (NPWT) involves filling the wound with a special medical foam dressing, sealing the wound with a well-fitting bio-semi-permeable membrane, and then placing a suction tube under the membrane to suction through the foam dressing. This keeps the wound sealed, effectively preventing external bacterial infection. It also allows for the timely removal of infected tissue fluid, necrotic tissue, and bacteria through active suction, reducing bacterial buildup and promoting wound healing. It can heal some wounds more effectively and in a shorter time, especially chronic wounds.

[0003] A search revealed that patent publication number CN222467630U discloses a wound negative pressure suction device, including a holding frame. A negative pressure component is fixedly connected to the inner bottom wall of the holding frame, and reinforcing components are fixedly connected to both sides of the inner wall of the holding frame. A retaining strip is fixedly connected to one side of the holding frame, and a collection bucket is installed inside the holding frame. Through the arrangement of the diversion component and the suction component, during use, the number of suction tubes connected to the three-way tube is adjusted according to the number of wounds on the patient, and the corresponding valves are opened. This allows different suction tubes to treat different wounds. In addition to increasing negative pressure at the wound site, it can suction out secretions or waste fluid after rinsing and discharge it into the collection bucket, providing integrated treatment for multiple wounds. Simultaneously, the negative pressure pump can treat multiple wounds, reducing the workload of medical staff, saving time and medical resources, and alleviating the burden on patients. The inventors discovered the following problems with the existing technology during the development of this utility model:

[0004] When in use, the device is fixedly connected to only one side of the holding rack, thereby stably connecting the entire device through the clip. However, when some patients use it outside of the hospital, the lack of corresponding moving parts makes it inconvenient to carry and move or adjust it.

[0005] Therefore, a portable negative pressure wound therapy device is proposed to address the above problems. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a portable wound negative pressure treatment device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a portable wound negative pressure treatment device, comprising a base, with a universal wheel installed at each of the four corners of the base's bottom wall, a sliding groove formed in the base's bottom wall, a bidirectional threaded screw rotatably connected within the sliding groove, two sliders symmetrically threaded on the outer side of the bidirectional threaded screw, a stabilizing base plate provided below the base, an arm hinged between the two sliders and the stabilizing base plate, four telescopic rods connected together at the four corners of the upper surface of the stabilizing base plate and the base's bottom wall, a connecting seat fixedly welded to the side wall of the base, a push rod slidably connected to the top of the connecting seat, a plurality of limiting holes equally spaced at both ends of the push rod, and a limiting bolt threadedly connected to both sides of the connecting seat.

[0008] Preferably, a collection cylinder is placed on the upper surface of the base, a lid is screwed onto the top of the collection cylinder, a drainage tube is screwed onto the upper surface of the lid, and a negative pressure tube is screwed onto the upper surface of the lid at a position symmetrical to the drainage tube.

[0009] Preferably, one end of the drainage tube is provided with a collecting suction tube, a filter assembly is provided between the drainage tube and the collecting suction tube, and one end of the collecting suction tube is connected to a three-way pipe.

[0010] Preferably, the three-way tube is provided with multiple valves, the output end of each valve is connected to a suction tube, one end of the suction tube is provided with a sealing strip, and the sealing strip is fixedly inserted through one end of the suction tube. A drug delivery tube and a flushing tube are respectively provided on both sides of the suction tube, and the sealing strip is inserted through one end of each flushing tube and drug delivery tube. A wound pad is adhered to the lower surface of the sealing strip.

[0011] Preferably, one end of the negative pressure pipe is connected to a negative pressure pump, and a filter assembly is provided on the negative pressure pipe. The filter assembly includes a filter cover and a filter base box. The negative pressure pipe is connected to the filter cover and the filter base box. The filter cover and the filter base box are screwed together. A polyester membrane layer, a fiber glass layer, and an activated carbon layer are respectively arranged between the filter cover and the filter base box.

[0012] Preferably, a negative pressure pump is provided on the upper surface of the base, and one end of the negative pressure pipe is connected to the output end of the negative pressure pump.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] Compared with existing technologies, this invention utilizes a two-way threaded screw and two sliders. The rotating two-way threaded screw drives the two sliders to move closer together. These sliders then move one end of an arm hinged between the two sliders and the stable base plate. The arm allows for the lifting and lowering adjustment of the stable base plate. The stable base plate, in conjunction with four casters, enables the entire device to be moved and transported. Furthermore, lowering the stable base plate to contact the ground ensures stable placement during use. This structure allows for stable placement of the entire device by lowering the stable base plate and simultaneously raising the stable base plate to contact the four casters with the ground, facilitating easy movement and transport of the device.

[0015] Compared with existing technologies, the push rod, which is adjusted by lifting on the connecting seat, can be moved and adjusted upwards during transportation, thereby pushing the entire device and improving its practicality. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a schematic diagram of the base wall structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the first partial three-dimensional structure of the present invention.

[0019] Figure 4 This is a schematic diagram of the partially disassembled three-dimensional structure of this utility model.

[0020] Figure 5 This is a schematic diagram of the second partial three-dimensional structure of the present invention.

[0021] The attached diagram is labeled as follows: 1. Base; 2. Slide groove; 3. Two-way threaded screw; 4. Slider; 5. Arm; 6. Stabilizing base plate; 7. Telescopic rod; 8. Caster wheel; 9. Collection cylinder; 10. Bucket lid; 11. Drainage tube; 12. Negative pressure tube; 13. Collecting suction tube; 14. T-connector; 15. Valve; 16. Dividing suction tube; 17. Rinsing tube; 18. Medication delivery tube; 19. Sealing patch; 20. Wound pad; 21. Filter cover; 22. Filter base box; 23. Polyester membrane layer; 24. Fiberglass layer; 25. Activated carbon layer; 26. Negative pressure pump; 27. Connecting seat; 28. Push rod; 29. ​​Limiting hole; 30. Limiting bolt. Detailed Implementation

[0022] 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. Example 1

[0023] As attached Figures 1 to 5 The portable wound negative pressure treatment device shown includes a base 1. A caster wheel 8 is installed at each of the four corners of the base 1's bottom wall. A groove 2 is formed in the bottom wall of the base 1, and a bidirectional threaded rod 3 is rotatably connected within the groove 2. A handwheel for adjusting the rotation of the bidirectional threaded rod 3 is connected to one end of the rod. Two sliders 4 are symmetrically threaded on the outer side of the bidirectional threaded rod 3. A stabilizing base plate 6 is provided below the base 1. Arms 5 are hinged between the two sliders 4 and the stabilizing base plate 6. Four telescopic rods 7 are connected to the bottom wall of the base 1 at the four corners of the upper surface of the stabilizing base plate 6. A connecting seat 27 is fixedly welded to the side wall of the base 1. A push rod 28 is slidably connected to the top of the connecting seat 27. Several limiting holes 29 are equally spaced at both ends of the push rod 28. A limiting bolt 30 is threadedly connected to both sides of the connecting seat 27.

[0024] In operation, the device is first rotated by turning the handwheel at one end of the bidirectional threaded screw 3. This rotation drives two sliders 4 closer together, which in turn moves one end of the arm 5, which is hinged between the sliders 4 and the stable base plate 6. The arm 5 then adjusts the height of the stable base plate 6. The coordinated movement of the adjustable stable base plate 6 with the four casters 8 allows for the movement and transport of the entire device. Finally, the stable base plate 6 can be lowered for further adjustment. This design ensures the device is in contact with the ground, allowing for stable placement during use. The lowering of the stabilizing base plate 6 stabilizes the entire device while simultaneously raising it, bringing the four casters 8 into contact with the ground for easy movement. The adjustable push rod 28 can be raised and lowered, secured by engaging one end of a limiting bolt 30 with a limiting hole 29 on the push rod 28. During movement, the push rod 28 is raised to propel the entire device. Example 2

[0025] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 5 As shown below, see details:

[0026] In a preferred embodiment, a collection cylinder 9 is placed on the upper surface of the base 1. A lid 10 is screwed onto the top of the collection cylinder 9. A drainage pipe 11 is screwed onto the upper surface of the lid 10. A negative pressure pipe 12 is screwed onto the upper surface of the lid 10 at a position symmetrical to the drainage pipe 11. A collecting suction pipe 13 is provided at one end of the drainage pipe 11. A filter assembly is provided between the drainage pipe 11 and the collecting suction pipe 13. One end of the collecting suction pipe 13 is connected to a three-way pipe 14. Multiple valves 15 are provided on the three-way pipe 14. A branch suction pipe 16 is connected to the output end of each valve 15. A sealing sticker 19 is provided at one end of the branch suction pipe 16, and one end of the branch suction pipe 16 is fixedly inserted through the sealing sticker 19. A drug delivery tube 18 and an irrigation tube 17 are respectively provided on both sides of the suction tube 16. One end of the irrigation tube 17 and the drug delivery tube 18 is respectively threaded through a sealing patch 19. A wound pad 20 is adhered to the lower surface of the sealing patch 19. Furthermore, when using the device, the wound pad 20 is first placed on the wound that requires negative pressure. Then, the wound pad 20 is glued and fixed on the wound through the sealing patch 19. Then, the valve 15 is opened, and the secretions of the wound covered by the wound pad 20 are sucked out through the drainage tube 11, the collecting suction tube 13 and the distributing suction tube 16. At the same time, the wound can be rinsed through the irrigation tube 17 and the medication can be delivered to the wound through the drug delivery tube 18.

[0027] In a preferred embodiment, one end of the negative pressure tube 12 is connected to a negative pressure pump 26, and a filter assembly is provided on the negative pressure tube 12. The filter assembly includes a filter cover 21 and a filter base box 22. The negative pressure tube 12 is connected to the filter cover 21 and the filter base box 22. The filter cover 21 and the filter base box 22 are screwed together. A polyester membrane layer 23, a fiber glass layer 24, and an activated carbon layer 25 are respectively arranged between the filter cover 21 and the filter base box 22. The negative pressure pump 26 is provided on the upper surface of the base 1, and one end of the negative pressure tube 12 is connected to the output end of the negative pressure pump 26. Furthermore, when the device is in use, the power supply of the negative pressure pump 26 can be turned on first. Then, the negative pressure pump 26 generates negative pressure in the collection cylinder 9 through the negative pressure tube 12. Then, the collection cylinder 9 with negative pressure draws out the secretions from the patient's wound through the drainage tube 11.

[0028] The working process of this utility model is as follows: First, turn on the power of the negative pressure pump 26. Then, the negative pressure pump 26 generates negative pressure in the collection cylinder 9 through the negative pressure pipe 12. Then, the collection cylinder 9 with negative pressure generates suction fluid from the wound covered by the wound pad 20 through the drainage pipe 11, the collection suction pipe 13 and the distribution suction pipe 16. The suctioned wound secretion fluid enters the collection cylinder 9 for unified collection.

[0029] When the entire device needs to be moved, the handwheel at one end of the bidirectional threaded screw 3 is first rotated to adjust the rotation of the bidirectional threaded screw 3. Then, the rotating bidirectional threaded screw 3 drives the two sliders 4 to move closer together. The two sliders 4 moving closer together drive one end of the arm 5, which is hinged between the two sliders 4 and the stable base plate 6, to move. The arm 5 is used to adjust the height of the stable base plate 6. The stable base plate 6, with its height adjustment and the cooperation of the four casters 8, allows the entire device to be moved and transported. Then, the stable base plate 6 is lowered to make it contact the ground, thus stabilizing the entire device during use. At the same time, the push rod 28 can be raised and lowered. Then, the push rod 28 is fixed by inserting one end of the limiting bolt 30 into the limiting hole 29 on the push rod 28. Then, during movement, the push rod 28 is raised and lowered, pushing the entire device. The above is the working principle of this portable wound negative pressure therapy device.

Claims

1. A portable wound negative pressure therapy device, comprising a base (1), characterized in that: A caster wheel (8) is installed at each of the four corners of the bottom wall of the base (1). A groove (2) is provided on the bottom wall of the base (1). A two-way threaded screw (3) is rotatably connected in the groove (2). Two sliders (4) are symmetrically threaded on the outer side of the two-way threaded screw (3). A stable base plate (6) is provided below the base (1). An arm (5) is hinged between the two sliders (4) and the stable base plate (6). Four telescopic rods (7) are connected to the bottom wall of the base (1) at the four corners of the upper surface of the stable base plate (6). A connecting seat (27) is fixedly welded to the side wall of the base (1). A push rod (28) is slidably connected to the top of the connecting seat (27). Several limiting holes (29) are equally spaced at both ends of the push rod (28). A limiting bolt (30) is threadedly connected to both sides of the connecting seat (27).

2. The portable wound negative pressure therapy device according to claim 1, characterized in that: A collection tube (9) is placed on the upper surface of the base (1). A lid (10) is screwed onto the top of the collection tube (9). A drain tube (11) is screwed onto the upper surface of the lid (10). A negative pressure tube (12) is screwed onto the upper surface of the lid (10) at a position symmetrical to the drain tube (11).

3. A portable wound negative pressure therapy device according to claim 2, characterized in that: One end of the drainage tube (11) is provided with a collecting suction tube (13), and a filter assembly is provided between the drainage tube (11) and the collecting suction tube (13). One end of the collecting suction tube (13) is connected to a three-way tube (14).

4. A portable wound negative pressure therapy device according to claim 3, characterized in that: The three-way tube (14) is provided with multiple valves (15), the output end of the valve (15) is connected to a suction tube (16), one end of the suction tube (16) is provided with a sealing patch (19), and one end of the suction tube (16) is fixedly inserted through the sealing patch (19). A drug delivery tube (18) and a flushing tube (17) are respectively provided on both sides of the suction tube (16), and one end of the flushing tube (17) and the drug delivery tube (18) is respectively inserted through the sealing patch (19). A wound pad (20) is adhered to the lower surface of the sealing patch (19).

5. A portable wound negative pressure therapy device according to claim 2, characterized in that: One end of the negative pressure pipe (12) is connected to a negative pressure pump (26). A filter assembly is provided on the negative pressure pipe (12). The filter assembly includes a filter cover (21) and a filter box (22). The negative pressure pipe (12) is connected to the filter cover (21) and the filter box (22). The filter cover (21) and the filter box (22) are screwed together. A polyester membrane layer (23), a fiber glass layer (24), and an activated carbon layer (25) are respectively arranged between the filter cover (21) and the filter box (22).

6. A portable wound negative pressure therapy device according to claim 5, characterized in that: A negative pressure pump (26) is provided on the upper surface of the base (1), and one end of the negative pressure pipe (12) is connected to the output end of the negative pressure pump (26).

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