Wound surface debridement device

Abstract

The invention discloses a wound debridement device, and relates to the technical field of debridement devices, the wound debridement device comprises a liquid supply main machine, the liquid supply main machine is connected with a debridement piece through a pipeline, the debridement piece comprises a handheld part, the two ends of the handheld part are connected with a debridement head and a water inlet head respectively, the wound debridement device further comprises a water spraying assembly and an adjusting assembly, and the water spraying assembly comprises a movable piece arranged in the debridement head; a flow guide part is slidably connected into the movable part in a sealed mode, one end of the flow guide part is fixedly connected with a limiting part, a communicating part is arranged between the flow guide part and the limiting part, the adjusting assembly comprises a connecting part arranged in the debridement part, and one end of the connecting part is fixedly connected with the end, extending out of the movable part, of the communicating part. When different degrees of wound surfaces of a patient are debrided through the debridement piece, the angle of the obtuse included angle formed between the injection opening of the debridement head and the handheld part by means of the liquid outlet direction of the movable piece is further enlarged, and discomfort and secondary injury of the patient during debridement are prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of wound debridement devices, and in particular to a wound debridement device. Background Art

[0002] Wound debridement is a process of removing pollutants, necrotic tissue, exudate and microorganisms from the wound through physical and other methods, transforming the contaminated wound into a clean wound and creating good conditions for wound healing.

[0003] However, according to different wound characteristics, the distance between the nozzle and the wound and the spray angle of the nozzle need to be adjusted when cleaning the wound, and the spray pressure is also different according to different wounds.

[0004] For example, the Chinese patent with application number 202411239024.2 discloses a wound cleaner for trauma orthopedics, including a liquid supply main unit and a spray gun, the spray gun is connected to the liquid supply main unit through a pipeline, and the spray gun includes a handheld part; a water outlet pipe assembly connected to the front end of the handheld part, including a mounting seat, a metal pipe and a hose; the mounting seat is connected to the front end of the handheld part; one end of the metal pipe is connected to the mounting seat and connected to the liquid supply main unit; the hose is connected to the other end of the metal pipe; the angle adjustment mechanism includes a flexible head, a transmission assembly and a control assembly; the control assembly includes a pressing plate and a push rod; the invention is significantly superior to the prior art in terms of ease of operation, cleaning effect, optimization of operating space, equipment reliability and durability, strong adaptability and safety of use through mechanical structure design. The wound cleaner is particularly suitable for occasions with high cleaning requirements such as trauma orthopedics, which can effectively improve work efficiency while ensuring the thoroughness and safety of wound cleaning.

[0005] Although the above invention can adjust the spray angle of the pipe inside the spray gun through the angle adjustment mechanism, the holding strength of different operators and the distance and angle between the spray gun and the patient's wound are different. It is easy to get tired during long-term debridement, and it is inconvenient to accurately grasp the spray distance and spray angle of wounds of different degrees. It is easy to cause the spray gun to be too close to the patient's wound or spray the patient's wound vertically, which may cause discomfort and secondary injury to the patient.

[0006] To this end, the present invention proposes a wound debridement device to solve the above problems. Summary of the invention

[0007] The object of the present invention is to provide a wound debridement device to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a wound debridement device, comprising a liquid supply main body, the liquid supply main body is connected to a debridement piece through a pipeline, the debridement piece comprises a hand-held part, both ends of the hand-held part are respectively connected to a debridement head and a water inlet head, and also comprises a water spray assembly and an adjustment assembly, the water spray assembly comprises a movable part arranged in the debridement head, a guide piece is sealingly and slidably connected in the movable part, one end of the guide piece is fixedly connected to a limiting part, a connecting piece is arranged between the guide piece and the limiting part, a first wedge piece is fixedly connected to the outer wall of the movable part, an annular groove is arranged on the inner bottom of the movable part, the adjustment assembly comprises a connecting piece arranged in the debridement piece, one end of the connecting piece is fixedly connected to one end of the movable part extending from the connecting piece, and a second wedge piece adapted to the first wedge piece is fixedly connected to the outer wall of the connecting piece.

[0009] Preferably, the water spray assembly also includes a fixing ring fixed in the debridement head, a limiting ring is provided on the outer wall of the movable part, the movable part is composed of a cylinder and a sphere, a plurality of evenly distributed elastic parts are arranged between the fixing ring and the limiting ring, a groove matched with the sphere of the movable part is arranged at the water outlet of the debridement head, the sphere of the movable part is abutted against the groove through the elastic part and the limiting ring, a through hole connected with the movable part is arranged in the guide part, a through hole connected with the guide part is opened in the connecting part, and the angle formed between the injection port of the debridement head and the hand-held part is an obtuse angle.

[0010] Preferably, the connecting piece is composed of a cylinder and a sphere, the flow guide piece and the position limiting piece are respectively provided with matching grooves matched with the sphere of the connecting piece, and the connecting piece forms a ball hinge in the flow guide piece and the position limiting piece.

[0011] Preferably, the adjustment component includes a fixing piece fixed in the debridement piece, the fixing piece is respectively provided with an avoidance hole and a placement hole, a base is fixedly connected in the placement hole, one end of the base away from the fixing piece is fixedly connected to a flexible piece, the other end of the flexible piece is fixedly connected to a bridging piece, and the other end of the bridging piece is fixedly connected to the connecting piece.

[0012] Preferably, a movable rod is arranged in the avoidance hole, one end of the fixing member away from the flexible member is fixedly connected to a supporting member, the other end of the supporting member is fixedly connected to an adjusting member, a long hole is provided on the side wall of one end of the movable rod located at the connecting member, a connecting hole is provided on the side wall of the other end of the movable rod extending out of the avoidance hole, an avoidance groove is provided on the support member, a rotating shaft is arranged in the avoidance groove, the outer wall of the rotating shaft located in the avoidance groove is rotatably connected to the inner wall of the avoidance hole, and the outer wall of the movable rod is slidably connected to the inner wall of the avoidance groove.

[0013] Preferably, a connecting hole is provided in the adjusting member, one end of the adjusting member is fixedly connected to a connecting head coaxially arranged with the connecting hole, an annular groove is provided in the adjusting member, the center of the annular groove is coaxially arranged with the rotating shaft, the annular groove is connected with the connecting hole, a sealing member is sealingly and slidably connected in the annular groove, and one end of the sealing member extending out of the annular groove is fixedly connected to the outer wall of the movable rod.

[0014] Preferably, an auxiliary part is fixedly connected to the outer wall of one end of the connecting piece away from the flexible piece, a placement groove is opened at the end of the auxiliary piece away from the connecting piece, a transfer rod is arranged in the placement groove, the outer wall of the transfer rod located in the placement groove is slidably connected to the inner wall of the long hole opened by the movable rod, and the outer wall of one end of the movable rod located in the placement groove is slidably connected to the inner wall of the placement groove.

[0015] Preferably, a water inlet pipe is provided in the water inlet head, and the water inlet pipe is connected with the connecting head through a pipeline.

[0016] Preferably, the connecting piece is L-shaped, a channel is provided in the connecting piece, the connecting piece and the connecting piece are connected to each other, and a high-pressure hose is fixedly connected to one end of the connecting piece close to the bridging piece.

[0017] Preferably, the other end of the high-pressure hose passes through the bridging member, the fixing member, the flexible member, the base and the supporting member and is connected to the connecting hole provided in the adjusting member.

[0018] The beneficial effects of the present invention are:

[0019] 1. The present invention enables the debridement piece to debride wounds of different degrees on the patient, and the guide piece moves upward in the movable piece to deform the flexible piece, and the connecting piece and the bridging piece are deflected while driving the second wedge piece to deflect, so that the second wedge piece drives the first wedge piece and the movable piece to deflect, and under the action of the limit ring and the elastic piece, the movable piece is deflected in the groove provided in the debridement head, so that when the debridement head is too close to the patient's wound surface and sprays the patient's wound vertically, the angle of the spray port of the debridement head is further enlarged by the obtuse angle formed by the liquid discharge direction of the movable piece and the hand-held part, so as to prevent the patient from feeling uncomfortable and suffering secondary injury due to the vertical spraying of the patient's wound surface by the debridement head being too close to the patient's wound surface. At the same time, the operator can also judge that the spraying distance is too close and adjust it in time through the change of the spraying angle, and can realize automatic adjustment of the angle when the debridement head is too close to the patient's wound surface and sprays the patient's wound vertically according to the wound surface of different degrees in combination with different use pressures, thereby reducing the operating difficulty of the operator.

[0020] 2. According to the present invention, when the patient has moderate or severe trauma, the debridement head is too close to the patient's wound surface, and the connecting piece is offset while driving the auxiliary piece to move synchronously, so that the movable rod rotates clockwise in the avoidance groove around the axis of the rotating shaft through the connecting hole, and the movable rod rotates clockwise around the rotating shaft while driving the blocking piece to slide in the annular groove opened by the adjusting piece, so that the blocking piece throttles the connecting hole in the annular groove through the rotating shaft of the movable rod, so as to reduce the cross-sectional area of ​​the high-pressure liquid passing through the connecting hole and reduce the flow rate of the fluid, thereby ensuring that when debridement is performed on patients with moderate and severe trauma, the debridement head is throttled to the connecting hole through the blocking piece when it is too close to the patient's wound surface, so as to reduce the flow rate of the fluid passing through the connecting hole, reduce the injection pressure after the movable piece is deflected, and further prevent the patient from feeling discomfort and secondary injury. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The figure is a schematic diagram of the overall structure of a wound debridement device according to the present invention.

[0022] Figure 2 It is a schematic diagram of the structure of the debridement piece of the present invention.

[0023] Figure 3 It is a schematic cross-sectional view of the debridement piece of the present invention.

[0024] Figure 4 It is a schematic cross-sectional view of the fixing member of the present invention.

[0025] Figure 5 For the present invention Figure 4 A local enlarged schematic diagram of point A in the figure.

[0026] Figure 6 It is a schematic diagram of the structure of the invented connecting piece.

[0027] Figure 7 Schematic diagram of explosion of movable parts of the invention.

[0028] Figure 8 This is a schematic diagram of the explosion of the movable rod.

[0029] The accompanying drawings are marked as follows:

[0030] 1. Liquid supply host;

[0031] 2. Debridement part; 21. Hand-held part; 22. Debridement head; 23. Water inlet head; 231. Water inlet pipe;

[0032] 3. Water spray assembly; 31. Movable part; 32. Flow guide; 33. Position limiting part; 34. Connecting part; 35. Fixed ring; 36. Position limiting ring; 37. Elastic part; 311. First wedge-shaped part;

[0033] 4. Adjustment component; 41. Connecting piece; 411. Auxiliary piece; 412. Placement slot; 413. Transfer rod; 42. Second wedge-shaped piece; 43. Fixing piece; 431. Avoidance hole; 432. Placement hole; 44. Base; 45. Flexible piece; 46. Bridging piece; 47. Movable rod; 471. Long hole; 472. Connecting hole; 48. Support piece; 481. Avoidance slot; 482. Rotating shaft; 49. Adjustment piece; 491. Connecting hole; 492. Connecting head; 493. Ring groove; 494. Blocking piece. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0035] Embodiment 1

[0036] In actual use, since the existing debridement device needs to adjust the debridement angle through the wrist according to the patient's wound condition, it is easy to cause hand fatigue of medical staff, thereby affecting the debridement quality and comfort. This embodiment is specially invented to solve the above problem.

[0037] See also Figures 1 to 4 A wound debridement device according to an embodiment of the present invention comprises a liquid supply host 1, wherein the liquid supply host 1 is provided with a touch screen and an output pump, and the output pressure of the output pump can be adjusted through the touch screen, which is a prior art and will not be described in detail here; the liquid supply host 1 is connected to a debridement member 2 through a pipeline, and the debridement member 2 comprises a handheld portion 21, and the two ends of the handheld portion 21 are respectively connected to a debridement head 22 and a water inlet head 23, and also comprises a water spray component 3 and an adjustment component 4, and the water spray component 3 comprises a movable part 31 arranged in the debridement head 22, and the movable part A guide piece 32 is sealingly and slidingly connected inside 31, one end of the guide piece 32 is fixedly connected to the limiting piece 33, a connecting piece 34 is arranged between the guide piece 32 and the limiting piece 33, the outer wall of the movable piece 31 is fixedly connected to the first wedge piece 311, the bottom of the movable piece 31 is arranged with an annular groove, the adjustment component 4 includes a connecting piece 41 arranged in the debridement piece 2, one end of the connecting piece 41 is fixedly connected to one end of the movable piece 31 extending out of the connecting piece 34, and the outer wall of the connecting piece 41 is fixedly connected to the second wedge piece 42 adapted to the first wedge piece 311.

[0038] See also Figure 5 and Figure 7The water spray assembly 3 also includes a fixed ring 35 fixed in the debridement head 22, a limiting ring 36 is sleeved on the outer wall of the movable part 31, the movable part 31 is composed of a cylinder and a sphere, and a plurality of uniformly distributed elastic members 37 are arranged between the fixed ring 35 and the limiting ring 36, wherein the elastic member 37 is a spring, and a groove adapted to the sphere of the movable part 31 is arranged at the water outlet of the debridement head 22, and the sphere of the movable part 31 is in contact with the groove through the elastic member 37 and the limiting ring 36, a through hole communicating with the movable part 31 is arranged in the guide part 32, and a through hole communicating with the guide part 32 is opened in the connecting member 34; combined with Figure 2 The angle formed between the injection port of the debridement head 22 and the hand-held part 21 is an obtuse angle. The connecting piece 34 is composed of a cylinder and a sphere. The guide piece 32 and the limit piece 33 are respectively provided with matching grooves matched with the sphere of the connecting piece 34. The connecting piece 34 forms a ball hinge in the guide piece 32 and the limit piece 33.

[0039] See also Figure 3 , Figure 4 and Figure 8 The adjusting assembly 4 includes a fixing member 43 fixed in the debridement member 2, and the fixing member 43 is respectively provided with an avoidance hole 431 and a placement hole 432, and a base 44 is fixedly connected in the placement hole 432, and a flexible member 45 is fixedly connected to one end of the base 44 away from the fixing member 43, and a bridge member 46 is fixedly connected to the other end of the flexible member 45, and the other end of the bridge member 46 is fixedly connected to the connecting member 41, wherein the flexible member 45 is a spring, and a movable rod 47 is arranged in the avoidance hole 431, and a support member 48 is fixedly connected to one end of the fixing member 43 away from the flexible member 45, and an adjusting member 49 is fixedly connected to the other end of the support member 48, and a long hole 471 is opened on the side wall of one end of the connecting member 41, and the other end of the movable rod 47 extends out of the avoidance hole 431. A connecting hole 472 is provided on the end side wall, and an avoidance groove 481 is provided on the support member 48. A rotating shaft 482 is provided in the avoidance groove 481. The outer wall of the rotating shaft 482 located in the avoidance groove 481 is rotatably connected to the inner wall of the avoidance hole 431. The outer wall of the movable rod 47 is slidably connected to the inner wall of the avoidance groove 481. A connecting hole 491 is provided in the adjusting member 49. One end of the adjusting member 49 is fixedly connected to a connecting head 492 coaxially arranged with the connecting hole 491. An annular groove 493 is provided in the adjusting member 49. The center of the annular groove 493 is concentrically arranged with the rotating shaft 482. The annular groove 493 is connected with the connecting hole 491. A blocking member 494 is sealingly and slidably connected in the annular groove 493. One end of the blocking member 494 extending out of the annular groove 493 is fixedly connected to the outer wall of the movable rod 47. Figure 6 and Figure 8An auxiliary part 411 is fixedly connected to the outer wall of one end of the connecting member 41 away from the flexible member 45, and a placement groove 412 is opened at one end of the auxiliary part 411 away from the connecting member 41. A transfer rod 413 is arranged in the placement groove 412. The outer wall of the transfer rod 413 located in the placement groove 412 is slidably connected to the inner wall of the long hole 471 opened by the movable rod 47, and the outer wall of one end of the movable rod 47 located in the placement groove 412 is slidably connected to the inner wall of the placement groove 412.

[0040] See also Figure 3 , a water inlet pipe 231 is provided in the water inlet head 23, and the water inlet pipe 231 is connected to the connecting head 492 through a pipeline; Figure 4 , Figure 5 and Figure 6 The connecting member 41 is L-shaped, a channel is provided in the connecting member 41, the connecting member 41 and the connecting member 34 are connected to each other, and a high-pressure hose is fixedly connected to one end of the connecting member 41 near the bridge member 46; Figure 8 The other end of the high-pressure hose passes through the bridging member 46, the fixing member 43, the flexible member 45, the base 44 and the supporting member 48 and is connected to the connecting hole 491 provided in the adjusting member 49.

[0041] When used for the first time, the staff holds the debridement piece 2 and points the debridement head 22 to the collector, and starts the output pump through the touch screen on the liquid supply host 1, and releases a certain amount of solution in advance to clean the pipeline in the debridement piece 2. Then the staff holds the hand-held part 21 of the debridement piece 2, brings the debridement head 22 close to the patient's wound, and selects the appropriate water pressure according to the patient's trauma condition to debride the patient's wound.

[0042] Specifically, during further use, the output pump located in the liquid supply host 1 transports the solution to the water inlet pipe 231 through the pipeline, the solution in the water inlet pipe 231 enters the connector 492 through the pipeline, the high-pressure solution in the connector 492 enters the connecting hole 491 opened by the adjusting member 49, the high-pressure liquid in the connecting hole 491 passes through the support member 48, the placement hole 432, the base 44, the flexible member 45 and the bridge member 46 in sequence through the high-pressure hose, the high-pressure solution in the high-pressure hose enters the channel opened by the connecting member 41, the high-pressure solution enters the connecting member 34 through the connecting member 41, the high-pressure liquid in the connecting member 34 enters the guide member 32, the high-pressure liquid in the guide member 32 enters the movable member 31, and the high-pressure liquid is sprayed through the movable member 31 to the wound surface of the patient that needs to be debrided for debridement.

[0043] When the patient has a mild wound, such as a superficial abrasion or a small contusion, the output pump is started through the touch screen on the liquid supply host 1, and a relatively low pressure is used to clean the patient's wound, such as a pressure in the range of 0.5 to 1.5 psi. The staff moves the handheld part 21 to bring the cleaning head 22 close to the patient's wound surface, and the cleaning head 22 is kept within 3 to 5 cm from the patient's wound surface. This distance can ensure that the flushing liquid can cover the wound area, and prevent the nozzle from being too close to the wound and accidentally touching or damaging the wound. At this time, the cleaning pressure is relatively gentle, which can effectively remove dust and dirt from the wound surface. Sand and other foreign objects, because the angle formed between the injection port of the debridement head 22 and the hand-held part 21 is an obtuse angle, when the operator is debridement of the patient's wound, even if the operator does not turn his wrist, the high-pressure liquid ejected by the debridement head 22 and the movable part 31 can form a certain angle with the patient's wound. When debridement of the patient, the debridement head 22 is offset at a certain angle so that the high-pressure liquid can form a better flushing effect on the wound surface, which can effectively flush out foreign objects at the edge and depression of the wound, and at the same time avoid the liquid directly impacting the wound vertically, causing the patient's pain to increase or causing secondary injury to the patient.

[0044] When the patient has a moderate wound, such as a deeper cut or laceration, the output pump is started through the touch screen on the liquid supply host 1, and a pressure in the range of 1.5 to 3 psi is used. This pressure range helps to flush out blood clots, tissue fragments, etc. deep in the wound, but will not cause further damage to the tissue inside the wound due to excessive pressure. The staff moves the handheld part 21 to bring the debridement head 22 close to the patient's wound surface, debride the patient's wound surface, and make the debridement head 22 within 5 to 8 cm from the patient's wound surface. This distance takes into account the depth of the patient's wound surface and possible internal foreign matter. Appropriate distance can allow the flushing liquid to flow in It has a certain impact force when entering the wound, and at the same time it can ensure the safety of operation and prevent the nozzle from contacting sensitive tissue inside the wound. At the same time, since the angle formed between the injection port of the debridement head 22 and the hand-held part 21 is an obtuse angle, when the operator is debridementing the patient's wound, even if the operator does not turn his wrist, the high-pressure liquid sprayed by the debridement head 22 and the movable part 31 can form a certain angle with the patient's wound. When debridement is performed on the patient, the debridement head 22 is offset by a certain angle. For deeper wounds, this angle can enable the flushing liquid to better enter the wound along the longitudinal axis of the wound, take out foreign matter, and reduce excessive impact on the side wall of the wound.

[0045] When the patient has a severe wound, such as a large open wound or deep burn, the output pump is started through the touch screen on the liquid supply host 1, and a pressure in the range of 3 to 5 psi is used. When dealing with such severe wounds, a strong flushing force is required to remove a large amount of pollutants, necrotic tissue, etc. It should be noted that the pressure should not be too high to avoid damage to surrounding healthy tissues and blood vessels. For example, when dealing with large-area burn wounds, sufficient pressure can effectively flush away the eschar and secretions on the burn wound surface. The staff moves the handheld part 21 to bring the debridement head 22 close to the patient's wound surface, debride the patient's wound surface, and make the debridement head 22 within 8 to 12 cm from the patient's wound surface. This distance is mainly to minimize the damage to the wound and surrounding areas while ensuring the flushing effect. Direct mechanical damage to tissue. Since severe wounds have a wide range, maintaining a certain distance can allow the flushing liquid to cover the wound area more widely. At the same time, since the angle formed between the jet port of the debridement head 22 and the hand-held part 21 is an obtuse angle, when the operator is debridement of the patient's wound, even if the operator does not turn his wrist, the high-pressure liquid sprayed by the debridement head 22 and the movable part 31 can form a certain angle with the patient's wound. When debridement is performed on the patient, the debridement head 22 is offset by a certain angle, which can be flexibly adjusted according to the specific situation of the patient's wound. For large-area open wounds, the debridement head 22 is offset by a certain angle when the movable part 31 is sprayed, so that the flushing liquid can fully cover all parts of the wound, effectively clean the wound, and avoid excessive damage to the wound and surrounding tissues.

[0046] Embodiment 2

[0047] In actual use, it was found that although the angle formed between the spray port of the debridement head 22 and the hand-held part 21 is an obtuse angle in terms of structural design, so that the debridement head 22 and the movable part 31 do not spray the patient's wound vertically, there is still a problem that when the patient's debridement site is a joint, due to the existence of a specific curved surface structure, the debridement head 22 is too close to the patient's wound when the operator is debridement, causing discomfort and secondary injury to the patient. In addition, the operator is prone to fatigue during long-term debridement and cannot accurately grasp the spray distance and spray angle of wounds of different degrees. For this reason, further improvements are made on the basis of the above-mentioned embodiments.

[0048] On the basis of the above embodiment, when the operator is performing wound cleaning on the patient, such as when the patient has a mild wound, the staff member approaches the wound surface of the patient through the wound cleaning head 22. When the wound cleaning head 22 and the movable member 31 are too close to the wound surface of the patient and spray vertically on the wound surface of the patient, the high-pressure liquid sprayed through the movable member 31 is blocked due to being too close to the wound surface of the patient. At this time, the flow rate of the high-pressure liquid sprayed through the movable member 31 is reduced. At the same time, the liquid pressure in the movable member 31 increases. The liquid pressure in the movable member 31 is greater than the liquid pressure in the connecting member 34. Due to the setting of the flexible member 45, the guide member 32 moves upward in the movable member 31. When the movable member 31 moves upward, it drives the limiting member 33 to move synchronously. When the movable member 31 and the limiting member 33 move upward synchronously, the connecting member 34 is deflected in the movable member 31 and the limiting member 33, and the connecting member 41 is driven to rotate. The connecting member 41 moves upward, and the bridging member 46 is displaced while the connecting member 41 moves. Meanwhile, the flexible member 45 is deformed. While the high-pressure liquid in the guide member 32 is sprayed on the patient's wound through the movable member 31, a part of the high-pressure water enters the annular groove at the bottom of the movable member 31. The high-pressure water in the annular groove further assists the guide member 32 to move upward. While the connecting member 41 moves, the second wedge member 42 is displaced. While the second wedge member 42 is displaced, the first wedge member 311 matched therewith is deflected together with the movable member 31, so that the movable member 31 is deflected in the groove set at the outlet of the debridement head 22. While the movable member 31 is deflected, the limiting ring 36 is driven to deflect synchronously. While the limiting ring 36 is deflected, the elastic member 37 on one side of the second wedge member 42 is stretched. Meanwhile, the limiting ring 36 compresses the elastic member 37 opposite to the second wedge member 42.

[0049] In summary, when the operator uses the debridement member 2 to debride wounds of different degrees on the patient, when the debridement head 22 is too close to the patient's wound and sprays the patient's wound vertically, the guide member 32 moves upward in the movable member 31, the flexible member 45 is deformed, the connecting member 41 together with the bridging member 46 deflects and drives the second wedge member 42 to deflect, so that the second wedge member 42 drives the first wedge member 311 together with the movable member 31 to deflect, and under the action of the limiting ring 36 and the elastic member 37, the movable member 31 deflects in the groove set in the debridement head 22, so that when the debridement head 22 is too close to the patient's wound, the flexible member 45 is deformed, and the connecting member 41 together with the bridging member 46 deflects and drives the second wedge member 42 to deflect, so that the second wedge member 42 drives the first wedge member 311 together with the movable member 31 to deflect, and under the action of the limiting ring 36 and the elastic member 37, the movable member 31 is deflected in the groove set in the debridement head 22, so that when the debridement head 22 is too close to the patient When the wound is too close to the patient's wound and sprays vertically, the obtuse angle formed by the liquid outlet direction of the movable part 31 and the hand-held part 21 of the spray port of the debridement head 22 is further enlarged, thereby preventing the patient from experiencing discomfort and secondary injury due to the debridement head 22 being too close to the patient's wound and spraying vertically on the patient's wound. At the same time, the operator can also judge that the spraying distance is too close and adjust it in time by the change of the spraying angle, and can automatically adjust the angle when the debridement head 22 is too close to the patient's wound and sprays vertically on the patient's wound according to different degrees of wounds and different use pressures, thereby reducing the operating difficulty of the operator.

[0050] Embodiment 3

[0051] In actual use, it was found that when the debridement piece 2 was too close to the patient's wound and sprayed vertically on the patient's wound, the movable piece 31 was deflected in the groove provided in the debridement head 22, so that the obtuse angle formed between the liquid outlet direction of the movable piece 31 and the hand-held part 21 was further enlarged, thereby preventing the patient from experiencing discomfort and secondary injury due to the debridement head 22 being too close to the patient's wound. However, this is more suitable for patients with mild trauma. However, when used for patients with moderate and severe trauma, the debridement head 22 still has a large spray pressure when it is too close to the patient's wound, causing discomfort and secondary injury to the patient. For this reason, further improvements are made on the basis of the above embodiments.

[0052] When the patient has moderate or severe trauma, the debridement head 22 is too close to the patient's wound and sprays the patient's wound vertically. On the basis of the above embodiment, the connecting member 41 deviates and drives the auxiliary member 411 to move synchronously. The auxiliary member 411 deviates and drives the transmission rod 413 to move synchronously. The transmission rod 413 slides in the long hole 471 formed in the movable rod 47, causing the movable rod 47 to deflect in the avoidance groove 481 formed in the support member 48 through the connecting hole 472 and the rotating shaft 482. At this time, the movable rod 47 rotates clockwise in the avoidance groove 481 around the axis of the rotating shaft 482 through the connecting hole 472. The clockwise rotation of the rotating shaft 482 drives the sealing member 494 to slide in the annular groove 493 formed in the adjusting member 49, so that the sealing member 494 throttles the connecting hole 491 in the annular groove 493 around the rotating shaft 482 through the movable rod 47, so as to reduce the cross-sectional area of ​​the high-pressure liquid passing through the connecting hole 491 and reduce the flow rate of the fluid, thereby ensuring that when debridement is performed on patients with moderate and severe trauma, the debridement head 22 throttles the connecting hole 491 through the sealing member 494 when it is too close to the patient's wound surface, so as to reduce the flow rate of the fluid passing through the connecting hole 491 and reduce the injection pressure of the movable member 31, thereby further preventing discomfort and secondary injury to the patient.

[0053] In summary, when the patient has moderate or severe trauma, the debridement head 22 is too close to the patient's wound surface, and the auxiliary member 411 is driven to move synchronously by the displacement of the connecting member 41, so that the movable rod 47 rotates clockwise around the axis of the rotating shaft 482 in the avoidance groove 481 through the connecting hole 472, and the movable rod 47 rotates clockwise around the rotating shaft 482 and drives the blocking member 494 to slide in the annular groove 493 provided in the adjusting member 49, so that the blocking member 494 passes through the movable rod 47. The connecting hole 491 is throttled by the rotating shaft 482 in the annular groove 493 to reduce the cross-sectional area of ​​the high-pressure liquid passing through the connecting hole 491, thereby reducing the flow rate of the fluid. This ensures that when debridement is performed on patients with moderate and severe trauma, the debridement head 22 throttles the connecting hole 491 through the blocking member 494 when it is too close to the patient's wound surface, thereby reducing the flow rate of the fluid through the connecting hole 491 and lowering the injection pressure after the movable member 31 is deflected, thereby further preventing discomfort and secondary injury to the patient.

[0054] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wound debridement device, comprising a liquid supply main unit (1), wherein the liquid supply main unit (1) is connected to a debridement member (2) via a pipeline, wherein the debridement member (2) comprises a handheld portion (21), wherein two ends of the handheld portion (21) are respectively connected to a debridement head (22) and a water inlet head (23), wherein: Also includes: A water spray assembly (3), the water spray assembly (3) comprising a movable part (31) arranged in the debridement head (22), a flow guide (32) being sealingly and slidably connected inside the movable part (31), one end of the flow guide (32) being fixedly connected to a limiting part (33), a connecting part (34) being arranged between the flow guide (32) and the limiting part (33), an outer wall of the movable part (31) being fixedly connected to a first wedge-shaped part (311), and an annular groove being arranged at the inner bottom of the movable part (31); An adjustment component (4), the adjustment component (4) comprising a connecting piece (41) arranged in the debridement piece (2), one end of the connecting piece (41) being fixedly connected to an end of the connecting piece (34) extending out of the movable piece (31), and an outer wall of the connecting piece (41) being fixedly connected to a second wedge-shaped piece (42) adapted to the first wedge-shaped piece (311).

2. A wound debridement device according to claim 1, characterized in that: The water spray assembly (3) further comprises a fixing ring (35) fixed in the debridement head (22); a limiting ring (36) is sleeved on the outer wall of the movable part (31); the movable part (31) is composed of a cylinder and a sphere; a plurality of uniformly distributed elastic parts (37) are arranged between the fixing ring (35) and the limiting ring (36); a groove matching the sphere of the movable part (31) is arranged at the water outlet of the debridement head (22); the sphere of the movable part (31) is in contact with the groove through the elastic part (37) and the limiting ring (36); a through hole communicating with the movable part (31) is arranged in the guide part (32); a through hole communicating with the guide part (32) is arranged in the connecting part (34); and an angle formed between the spray port of the debridement head (22) and the hand-held part (21) is an obtuse angle.

3. A wound debridement device according to claim 2, characterized in that: The connecting piece (34) is composed of a cylinder and a sphere, the flow guide (32) and the stopper (33) are respectively provided with matching grooves matched with the sphere of the connecting piece (34), and the connecting piece (34) forms a ball hinge in the flow guide (32) and the stopper (33).

4. A wound debridement device according to claim 3, characterized in that: The adjustment component (4) comprises a fixing member (43) fixed in the debridement member (2), the fixing member (43) is respectively provided with an avoidance hole (431) and a placement hole (432), a base (44) is fixedly connected in the placement hole (432), one end of the base (44) away from the fixing member (43) is fixedly connected to a flexible member (45), the other end of the flexible member (45) is fixedly connected to a bridging member (46), and the other end of the bridging member (46) is fixedly connected to the connecting member (41).

5. A wound debridement device according to claim 4, characterized in that: A movable rod (47) is arranged in the avoidance hole (431); one end of the fixing member (43) away from the flexible member (45) is fixedly connected to a support member (48); the other end of the support member (48) is fixedly connected to an adjustment member (49); a side wall of one end of the movable rod (47) located on the connecting member (41) is provided with a long hole (471); the other side wall of the movable rod (47) extending out of the avoidance hole (431) is provided with a connecting hole (472); an avoidance groove (481) is arranged in the support member (48); a rotating shaft (482) is arranged in the avoidance groove (481); the outer wall of the rotating shaft (482) located in the avoidance groove (481) is rotatably connected to the inner wall of the avoidance hole (431); and the outer wall of the movable rod (47) is slidably connected to the inner wall of the avoidance groove (481).

6. A wound debridement device according to claim 5, characterized in that: The adjusting member (49) is provided with a connecting hole (491), one end of the adjusting member (49) is fixedly connected with a connecting head (492) coaxially arranged with the connecting hole (491), the adjusting member (49) is provided with an annular groove (493), the center of the annular groove (493) is coaxially arranged with the rotating shaft (482), the annular groove (493) is connected with the connecting hole (491), a sealing member (494) is sealingly and slidably connected in the annular groove (493), and one end of the sealing member (494) extending out of the annular groove (493) is fixedly connected with the outer wall of the movable rod (47).

7. A wound debridement device according to claim 6, characterized in that: An auxiliary piece (411) is fixedly connected to the outer wall of one end of the connecting piece (41) away from the flexible piece (45); a placement groove (412) is provided at one end of the auxiliary piece (411) away from the connecting piece (41); a transmission rod (413) is provided in the placement groove (412); the outer wall of the transmission rod (413) located in the placement groove (412) is slidably connected to the inner wall of the long hole (471) opened by the movable rod (47); the outer wall of one end of the movable rod (47) located in the placement groove (412) is slidably connected to the inner wall of the placement groove (412).

8. A wound debridement device according to claim 7, characterized in that: A water inlet pipe (231) is provided in the water inlet head (23), and the water inlet pipe (231) is connected to the connecting head (492) through a pipeline.

9. A wound debridement device according to claim 8, characterized in that: The connecting piece (41) is L-shaped, a channel is provided in the connecting piece (41), the connecting piece (41) and the connecting piece (34) are connected to each other, and a high-pressure hose is fixedly connected to one end of the connecting piece (41) close to the bridge piece (46).

10. A wound debridement device according to claim 9, characterized in that: The other end of the high-pressure hose passes through the bridging member (46), the fixing member (43), the flexible member (45), the base (44) and the supporting member (48) and is connected to a connecting hole (491) provided in the adjusting member (49).

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