Handheld portable wound debridement device

Abstract

The invention discloses a handheld portable wound debridement device which comprises a movable frame (1), and a solution box (2) carrying a pump body is arranged on the movable frame (1); the liquid outlet end of the solution box (2) is connected with a nozzle main body (3) through a pipeline, one end of the nozzle main body (3) is provided with a fluid guide seat (4), and the front end of the fluid guide seat (4) is connected with a mixing head (5) through a fixing ring (6); the end part of the fixing ring (6) is connected with an end nozzle (7) communicated with the mixing head (5), an inner bracket (8) is arranged in the end nozzle (7), a motor seat (9) is arranged at the side part of the end nozzle (7), and a motor (10) is arranged in the motor seat (9); a deflection type conical assembly (11) is arranged in the inner support (8). Wound debridement is achieved in an annular water outlet mode, the water flow pressure is relieved, and the comfort of wound debridement is improved.

Description

Technical Field

[0001] The present invention relates to the field of wound debridement equipment, in particular to a handheld portable wound debridement device. Background Art

[0002] Wound debridement can remove harmful substances such as devitalized tissue, pus, blood clots, and foreign matter from the wound or wound surface. It is a fundamental treatment for preventing or alleviating wound infection, promoting wound healing, or creating conditions for surgical repair. Existing debridement devices, such as Chinese invention patent CN114796685A, disclose a portable wound scouring and debridement device. The portable wound scouring and debridement device comprises a high-pressure scouring system and a negative pressure suction system fixed to a gun-shaped portion. The gun-shaped portion comprises a barrel portion and a handheld portion, which are integrally formed. The barrel portion is hollow and cylindrical. The high-pressure scouring system consists of a drive portion, a hollow rotating brush, a flushing tube, and a positive pressure pump. The hollow rotating brush rotates under electrical drive to peel pus, cyst walls, necrotic tissue, and foreign matter from the wound wall, while simultaneously spraying cleaning fluid with a certain pressure pulse. The negative pressure suction system consists of a suction head, a negative pressure bottle, and a negative pressure pump, which can draw pus, necrotic tissue or cyst walls, foreign matter, and disinfectant into the negative pressure bottle. In this device, the water jetted from the high-pressure flushing system flows out in the form of a water column direct spray, which has a certain pressure. This water pressure will act on the wound, causing the patient's pain to increase. Summary of the Invention

[0003] The present invention aims to provide a handheld portable wound debridement device that achieves wound debridement through an annular water outlet, reduces water flow pressure, and improves the comfort of wound debridement.

[0004] The technical solution of the present invention is as follows: a handheld portable wound debridement device, comprising a mobile frame, on which a solution tank equipped with a pump body is provided; the liquid outlet end of the solution tank is connected to a nozzle body via a pipeline, one end of the nozzle body is provided with a fluid guide seat, and the front end of the fluid guide seat is connected to a mixing head via a fixed ring; the end of the fixed ring is connected to an end nozzle connected to the mixing head, an inner bracket is provided in the end nozzle, a motor seat is provided on the side of the end nozzle, and a motor is provided in the motor seat; a slewing conical assembly is provided in the inner bracket, the output end of the motor is connected to the slewing conical assembly via a bevel gear structure, the liquid outlet of the mixing head is arranged toward the conical surface of the slewing conical assembly, and the liquid outlet end of the end nozzle has an annular opening.

[0005] In the above-mentioned handheld portable wound debridement device, the movable frame is provided with a right-angle plate, the vertical plate of the right-angle plate is provided with a ring frame for placing the nozzle body; the horizontal plate of the right-angle plate is provided with a solution box for collecting dripping liquid.

[0006] In the aforementioned handheld portable wound debridement device, the solution box comprises a box frame arranged on the horizontal plate of the right-angle plate, a box body that can be withdrawn from the side is arranged inside the box frame, and the open end of the box body corresponds to the annular frame.

[0007] In the aforementioned handheld portable wound debridement device, an adjustment part is provided at one end of the nozzle body, an intermediate channel is provided in the fluid guide seat, and the end of the intermediate channel has a tapered groove that fits with the needle rod of the adjustment rod; the mixing head has a mixing chamber connected to the tapered groove; the other end of the nozzle body has a liquid inlet cavity connected to the solution tank through a pipeline, and the liquid inlet cavity is connected to the intermediate channel.

[0008] In the aforementioned handheld portable wound debridement device, the adjusting member includes a positioning sleeve connected to the nozzle body, an opening and closing rod passing through the middle channel is provided in the positioning sleeve through a thread, and the end of the opening and closing rod fits in the tapered through groove.

[0009] In the aforementioned handheld portable wound debridement device, the oscillating conical assembly includes an eccentric sleeve arranged in an inner bracket, an eccentric shaft is provided in the eccentric sleeve, a support ring is provided at the end of the eccentric shaft, and a conical part is provided at the end of the eccentric shaft that fits with the support ring, and the conical part corresponds to the liquid outlet end of the mixing head; the output end of the motor is connected to the eccentric sleeve through a bevel gear structure.

[0010] In the aforementioned handheld portable wound debridement device, the end of the circumferential surface of the supporting ring is provided with a blocking ring for shielding the outer circular end of the inner bracket.

[0011] In the aforementioned handheld portable wound debridement device, the annular opening is composed of the through-mouth opening and the central flow guide, the inner wall of the through-mouth opening is connected to the central flow guide via ribs, and the inner end of the central flow guide has a conical protrusion.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] 1. In the present invention, the medical staff holds the nozzle body, and the debridement solution starts from the solution tank, flows into the interior of the nozzle body in an orderly manner through the pipeline, and then reaches the mixing head through the channel in the fluid guide seat. The solution flows on the conical surface of the deflection cone component. At this time, the motor is started to drive the deflection cone component to operate at high speed. With the help of the diversion effect generated by the rotation of the conical surface, the solution is guided to the inner wall of the end nozzle, and finally flows out from the annular mouth in a ring shape evenly, gently flushing the wound. The annular water outlet method can effectively disperse the water flow pressure, significantly reduce the impact of the water flow on the wound, greatly improve the patient's comfort during the wound debridement process, and bring a more humane experience to the debridement treatment.

[0014] 2. Considering that the wound conditions of different patients are different, the required concentration of debridement solution is also different. Some solutions need to be diluted and prepared. Medical staff only need to turn the opening and closing rod in the adjustment part to move it outward and accurately control the opening and closing of the tapered groove at the end of the mixing head. When the solution needs to be diluted, the diluent can pass through the liquid inlet cavity, the middle channel and the opened tapered groove in sequence to reach the mixing chamber smoothly and be fully mixed with the flushing solution. The entire operation process is simple and convenient, without the need for complicated operating procedures, which not only ensures the accuracy of the solution ratio but also improves the efficiency of the debridement work.

[0015] 3. The annular opening is composed of the through opening of the end nozzle and the central guide piece. The inner end of the central guide piece has a conical protrusion. The conical protrusion can guide the solution to flow more smoothly, reduce the resistance and turbulence of the solution during the outflow process, ensure that the solution flows out in a stable and efficient state, and further improve the effect and quality of wound debridement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a structural diagram of the connection between the nozzle body and the end nozzle;

[0018] Figure 3 Schematic diagram of the internal structure of the nozzle body;

[0019] Figure 4 is a schematic diagram of the annular opening;

[0020] Figure 5 is a schematic diagram of a tapered member;

[0021] Figure 6 is a schematic diagram of an eccentric shaft;

[0022] Figure 7 Schematic diagram of the tilting cone assembly.

[0023] Explanation of the marks in the accompanying drawings: 1-movable frame, 2-solution tank, 3-nozzle body, 4-fluid guide seat, 5-mixing head, 6-fixed ring, 7-end nozzle, 8-inner bracket, 9-motor seat, 10-motor, 11-swaying cone assembly, 12-annular mouth, 13-right angle plate, 14-annular frame, 15-solution box, 16-box frame, 17-box body, 18-adjusting member, 19-middle channel, 20-conical through groove, 21-mixing chamber, 22-liquid inlet chamber, 23-positioning sleeve, 24-opening and closing rod, 25-eccentric shaft sleeve, 26-eccentric shaft, 27-support ring, 28-conical member, 29-blocking ring, 30-through port, 31-center flow guide member, 32-conical protrusion. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and examples, but they are not intended to limit the present invention.

[0025] Embodiment: A handheld portable wound debridement device comprises a mobile frame 1, as shown in the attached Figure 1 As shown, a solution tank 2 equipped with a pump body is installed on the mobile frame 1; the solution tank has two compartments, one side is for flushing solution and the other side is for dilution solution, the liquid outlet end of the solution tank 2 is connected to the nozzle body 3 through a pipeline, and a fluid guide seat 4 is installed at one end of the nozzle body 3, and the nozzle body has a lateral channel, through which the solution flows to the fluid guide seat, and the fluid guide seat has multiple channels along the axial direction, and the front end of the fluid guide seat 4 is connected to a mixing head 5 through a fixing ring, and the solution flows into the mixing head through multiple channels in the fluid guide seat, and the mixing head is stuck in the fixing ring; the end of the fixing ring 6 is connected to a nozzle 7 connected to the mixing head 5, as shown in the attached figure. Figure 2 As shown, an inner bracket 8 is installed in the end nozzle 7, a motor seat 9 is installed on the side of the end nozzle 7, a motor 10 is installed in the motor seat 9, the motor is installed on the inner side of the motor seat, and the end of the motor has a connecting plate, which is connected to the end of the motor seat through the connecting plate; a swaying cone assembly 11 is installed in the inner bracket 8, and the output end of the motor 10 is connected to the swaying cone assembly 11 through a bevel gear structure, and the liquid outlet of the mixing head 5 is arranged toward the conical surface of the swaying cone assembly 11, and the liquid flowing out of the mixing head will be sprayed on the conical surface of the swaying cone assembly 11, as shown in the attached figure. Figure 5 As shown, the liquid outlet end of the nozzle 7 has an annular opening 12. Under the guidance of the deflection cone component 11, the solution will flow out from the annular opening along the inner wall of the nozzle.

[0026] A right-angled plate 13 is installed on the mobile frame 1, and a ring frame 14 for placing the nozzle body 3 is installed on the vertical plate of the right-angled plate 13. When the wound is not being cleaned and rinsed, the nozzle body will be placed in the ring frame; a solution box 15 for collecting dripping liquid is installed on the horizontal plate of the right-angled plate 13, and the solution box 15 includes a box frame 16 arranged on the horizontal plate of the right-angled plate 13. A box body 17 that can be withdrawn from the side is placed inside the box frame 16, and the open end of the box body 17 corresponds to the ring frame 14. After the nozzle body is used, some dripping liquid will intermittently drip out from the annular mouth. A box body is arranged below the ring frame, and the dripping liquid will fall into the box body, keeping the mobile frame clean and hygienic. After the dripping liquid is full in the box body, the box body is taken out.

[0027] One end of the nozzle body 3 is provided with an adjusting member 18. Figure 3As shown, the fluid guide seat 4 has an intermediate channel 19, and the end of the intermediate channel 19 has a tapered groove 20 that fits with the needle rod of the adjusting member 18; the mixing head 5 has a mixing chamber 21 connected to the tapered groove 20, and the end of the mixing chamber has two oblique grooves, and the opening direction of the oblique grooves is toward the conical surface of the conical member; the other end of the nozzle body 3 has a liquid inlet cavity 22 connected to the solution tank 2 through a pipeline, and the liquid inlet cavity 22 is connected to the intermediate channel 19; the adjusting member 18 includes a positioning sleeve 23 connected to the nozzle body 3, and the positioning sleeve 23 is threaded with an opening and closing rod 24 that passes through the intermediate channel 19, and the end of the opening and closing rod 24 fits with the tapered groove 20. Considering that different wounds vary from patient to patient, the required concentration of debridement solution also varies. Some solutions need to be diluted and adjusted. Medical staff only need to rotate the opening and closing rod in the adjustment part to move it outward, precisely controlling the opening and closing of the tapered slot at the end of the mixing head. When the solution needs to be diluted, the diluent can pass through the liquid inlet cavity, the middle channel, and the opened tapered slot in sequence to smoothly reach the mixing chamber and be fully mixed with the flushing solution. The entire operation process is simple and convenient, without the need for complex operating procedures, which not only ensures the accuracy of the solution ratio but also improves the efficiency of the debridement work. The amount of diluent solution entering the mixing chamber can be controlled by changing the gap between the end of the opening and closing rod and the tapered channel.

[0028] The deflection cone assembly 11 includes an eccentric sleeve 25 arranged in the inner bracket 8, as shown in the attached Figure 7 As shown, an eccentric shaft 26 is installed in the eccentric sleeve 25. Figure 6 As shown, the end of the eccentric shaft 26 is provided with a support ring 27, and the end of the eccentric shaft 26 is installed with a cone 28 that fits with the support ring 27. The cone 28 corresponds to the liquid outlet end of the mixing head 5. The output end of the motor 10 is connected to the eccentric sleeve 25 via a bevel gear structure. The motor output power drives the first bevel gear to rotate. The eccentric sleeve has a second bevel gear. The two bevel gears are meshed. The support ring can support the cone and ensure its stability. The eccentric shaft has structures such as steps and bevels, which can play an axial positioning role for the support ring. After the support ring and cone are installed, the end head can be screwed on the end of the eccentric shaft to fix the cone. The eccentric shaft rotates, driving the cone to rotate with a certain degree of swing, so that the solution is buffered and the solution can flow better along the inner wall of the nozzle. The end of the circumferential surface of the support ring 27 has a retaining ring 29 that blocks the outer circular end of the inner bracket 8. The retaining ring is connected to the support ring by welding. The end nozzle is placed vertically when in use, and the solution will flow downward along the surface of the cone. In this regard, the retaining ring is provided to prevent the solution from flowing into the eccentric shaft sleeve and preventing the solution from affecting the rotation of the eccentric shaft.

[0029] The annular opening 12 is composed of the through opening 30 of the end nozzle 7 and the central flow guide 31. Figure 4 As shown, the inner wall of the opening 30 is connected to the central guide 31 via ribs. The inner end of the central guide 31 has a conical protrusion 32. This conical protrusion guides the solution to flow more smoothly, reducing resistance and turbulence during the outflow process, ensuring a stable and efficient outflow of the solution, further improving the effectiveness and quality of wound debridement. During wound debridement, the nozzle body is positioned above the wound, and the solution falls onto the tapered surface of the conical member and flows out along the annular opening to flush the wound.

[0030] The working principle of the present invention is as follows: when performing wound debridement operation, the medical staff holds the nozzle body 3, and after the device is started, the pump body extracts the debridement solution in the solution tank 2, and the solution flows into the nozzle body 3 through the pipeline. The solution flows through the lateral channel in the nozzle body 3 to the fluid guide seat 4, and then flows into the mixing head 5 through multiple axial channels in the fluid guide seat 4; when the solution reaches the mixing head 5, it is sprayed out from the liquid outlet of the mixing head 5 and sprayed on the conical surface of the eccentric cone assembly 11. At this time, the motor 10 is started, and the output end of the motor 10 drives the eccentric sleeve 25 to rotate through the bevel gear structure. Due to the eccentric design of the eccentric sleeve 25 and the eccentric shaft 26, the eccentric shaft 26 not only rotates itself when rotating, but also drives the cone part 28 to swing to a certain extent, so that the solution Under the influence of the diversion effect produced by the high-speed operation of the deflection cone assembly 11, the liquid flows along the conical surface and is guided to the inner wall of the end nozzle 7, and finally flows out in a ring shape evenly from the annular opening 12 of the end nozzle 7, gently flushing the wound; according to the different needs of different injured persons for the concentration of the debridement solution, medical staff can rotate the opening and closing rod 24 in the adjustment part 18. Since the opening and closing rod 24 is threadedly connected to the positioning sleeve 23, rotating the opening and closing rod 24 can move it outward to accurately control the opening and closing degree of the conical groove 20 at the end of the mixing head 5. When the solution needs to be diluted, the diluent in the solution tank 2 can pass through the liquid inlet cavity 22, the middle channel 19 and the opened conical groove 20 in sequence, flow into the mixing chamber 21, and be fully mixed with the flushing solution to obtain a debridement solution of appropriate concentration.

Claims

1. A handheld portable wound debridement device, comprising a mobile frame (1), on which a solution tank (2) equipped with a pump body is provided; characterized in that: The liquid outlet end of the solution tank (2) is connected to a nozzle body (3) via a pipeline, a fluid guide seat (4) is provided at one end of the nozzle body (3), and the front end of the fluid guide seat (4) is connected to a mixing head (5) via a fixing ring (6); the end of the fixing ring (6) is connected to an end nozzle (7) in communication with the mixing head (5), an inner bracket (8) is provided in the end nozzle (7), a motor seat (9) is provided on the side of the end nozzle (7), and a motor (10) is provided in the motor seat (9); a swaying cone assembly (11) is provided in the inner bracket (8), and the output end of the motor (10) is connected to the swaying cone assembly (11) via a bevel gear structure; the liquid outlet of the mixing head (5) is arranged toward the conical surface of the swaying cone assembly (11), and the liquid outlet end of the end nozzle (7) has an annular opening (12).

2. The handheld portable wound debridement device according to claim 1, characterized in that: The movable frame (1) is provided with a right-angle plate (13), and a ring frame (14) for placing the nozzle body (3) is provided on the vertical plate of the right-angle plate (13); and a solution box (15) for collecting droplets is provided on the horizontal plate of the right-angle plate (13).

3. The handheld portable wound debridement device according to claim 2, characterized in that: The solution box (15) comprises a box frame (16) arranged on the horizontal plate of the right-angle plate (13), wherein a box body (17) which can be withdrawn from the side is arranged in the box frame (16), and an open end of the box body (17) corresponds to the annular frame (14).

4. The handheld portable wound debridement device according to claim 1, characterized in that: One end of the nozzle body (3) is provided with an adjusting member (18); the fluid guide seat (4) has an intermediate channel (19); the end of the intermediate channel (19) has a tapered through groove (20) that fits with the needle rod of the adjusting member (18); the mixing head (5) has a mixing chamber (21) that is connected to the tapered through groove (20); the other end of the nozzle body (3) has a liquid inlet chamber (22) that is connected to the solution tank (2) via a pipeline, and the liquid inlet chamber (22) is connected to the intermediate channel (19).

5. The handheld portable wound debridement device according to claim 4, characterized in that: The adjusting member (18) comprises a positioning sleeve (23) connected to the nozzle body (3); an opening and closing rod (24) is threadedly provided in the positioning sleeve (23) and penetrates the middle channel (19); the end of the opening and closing rod (24) is fitted in the tapered through groove (20).

6. The handheld portable wound debridement device according to claim 1, characterized in that: The eccentric cone assembly (11) comprises an eccentric sleeve (25) arranged in an inner bracket (8), an eccentric shaft (26) is arranged in the eccentric sleeve (25), a support ring (27) is provided at the end of the eccentric shaft (26), a cone (28) is provided at the end of the eccentric shaft (26) and is fitted with the support ring (27), and the cone (28) corresponds to the liquid outlet end of the mixing head (5); the output end of the motor (10) is connected to the eccentric sleeve (25) via a bevel gear structure.

7. The handheld portable wound debridement device according to claim 6, characterized in that: The end of the circumferential surface of the supporting ring (27) is provided with a blocking ring (29) for blocking the outer circular end of the inner bracket (8).

8. The handheld portable wound debridement device according to claim 1, characterized in that: The annular opening (12) is composed of a through opening (30) of the end nozzle (7) and a central flow guide (31). The inner wall of the through opening (30) is connected to the central flow guide (31) via ribs, and the inner end of the central flow guide (31) has a conical protrusion (32).

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