Gout crystal scraping device

Abstract

The invention discloses a gout crystal scraping device, and relates to the technical field of gout surgeries, the gout crystal scraping device comprises a grab handle and a tool bit arranged at the end of the grab handle, the gout crystal scraping device comprises an elastic shifting plate arranged on the tool bit, and the elastic shifting plate is divided into a pressing plate movably arranged in the vertical direction of the plane where the tool bit is located and wing plates symmetrically arranged relative to the pressing plate; the rotary saw is rotationally arranged on the wing plate; the opening is formed in the elastic shifting plate; the suction channel is formed in the grab handle and used for sucking an inner cavity defined by the tool bit and the elastic shifting plate. According to the gout crystal scraping device, the pressing plate is pushed by the crystal to enable the wing plates on the two sides to automatically get close to the position where the crystal is located in the middle, so that the rotary saws on the wing plates are driven to get close to and be tightly attached to the side faces of the crystal, and the pressing plate of the elastic stirring plate is pressed to form an arc-shaped structure to surround the crystal; the bone joints of a patient can be effectively prevented from being accidentally injured in the scraping process, and then small crystal stones are sucked through the suction channel and prevented from falling to the wound of the patient.

Description

Technical Field

[0001] The invention relates to the technical field of gout surgery, and in particular to a gout crystal scraping device. Background Art

[0002] The Gout Crystal Scrape is a medical device used to treat gout, primarily for the removal of uric acid crystals in joints. Gout is caused by high levels of uric acid in the body, which causes uric acid crystals to deposit in joints, causing inflammation and pain. By scraping these crystals, symptoms can be relieved and the patient's quality of life can be improved.

[0003] In conjunction with publication number CN221730787U, publication date 2024-09-20, a gout crystal removal tool is disclosed, including: a base, a scraper head, an adjustment rod and an adsorption tube, the base is provided with a sliding rod, and the two opposite ends of the sliding rod are respectively a first end and a second end. The scraper head is rotatably connected to the side wall of the sliding rod close to the first end, and the scraper head can deflect relative to the sliding rod. The adjusting rod is slidably connected to the sliding rod, and one end of the adjusting rod is used to cooperate with the scraper head to deflect the scraper head. The adsorption tube is connected to the sliding rod, and one end of the adsorption tube is arranged close to the scraper head, and the other end of the adsorption tube is used to connect a negative pressure device. By operating the adjusting rod to slide on the sliding rod, the sliding rod is driven to deflect, and the angle between the sliding rod is adjusted, so that the gout crystals on the surface of the articular cartilage can be more comprehensively cleaned for articular cavity cartilage with different curved surface structures.

[0004] However, in the prior art including the above-mentioned patent, when the scraper is used to clean gout crystals close to the bones, since the gout crystals in this area have been deposited for a long time and are more closely connected to the joints, it is necessary to increase the scraping force, so that the scraper directly scrapes the patient's joints, causing bone damage and other problems. Summary of the invention

[0005] The purpose of the present invention is to provide a gout crystal scraping device to solve the above problems.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a gout crystal scraping device, comprising a handle and a blade head arranged at the end of the handle, comprising an elastic paddle plate arranged on the blade head, which is divided into a pressing plate arranged vertically and movably along the plane where the blade head is located and a wing plate arranged symmetrically about the pressing plate;

[0007] Rotating a rotary saw disposed on the wing plate;

[0008] An opening formed on the elastic plate;

[0009] A suction channel is provided on the handle, and is used to suck the inner cavity formed by the cutter head and the elastic paddle;

[0010] The pressing plate is driven to move downward and the two wing plates are closed, and the opening is opened.

[0011] Preferably, the device further comprises a ball bearing disposed on the pressure plate.

[0012] Preferably, a plurality of cutting teeth are arranged in a circular array on the rotary saw, a channel communicating with the inner cavity is opened in the rotary saw, and a plurality of spiral plates are arranged in a circular array at the entrance of the channel.

[0013] As a preference, it further comprises a left transmission rod rotatably arranged on the cutter head, and a first bevel gear is fixedly arranged at the end of the left transmission rod;

[0014] The rotary saw is fixedly provided with a second bevel gear meshing with the first bevel gear for transmission;

[0015] Wherein, the rotary saw rotates along the tooth grain surface of the first bevel gear as the wing plate moves.

[0016] Preferably, it further comprises a detection unit for detecting the stress condition of the pressure plate, and a clutch unit for adjusting the rotation speed of the left transmission rod according to the detection result of the detection unit;

[0017] The clutch unit comprises a small gear for driving the left transmission rod to rotate slowly and a large gear for driving the left transmission rod to rotate quickly.

[0018] Preferably, it also includes a driving motor fixedly arranged on the cutter head, a driving rod is slidably arranged on the output shaft of the driving motor, and the small gear and the large gear are coaxially arranged on the driving rod, and a transmission block for pushing the driving rod is arranged on the pressure plate.

[0019] Preferably, a folding portion is fixedly provided between the pressure plate and the wing plate, and the folding portion has an unfolded state in which the opening is opened.

[0020] Preferably, the invention further comprises a recessed portion formed at the end of the blade head, on which a vertical blade is arranged.

[0021] Preferably, the vertical blade is rotatably disposed on the recessed portion and moves synchronously with the pressure plate.

[0022] Preferably, it also includes a partition fixedly arranged on the elastic pick plate, on which a vertical rod is fixedly arranged, and the cutter head is fixedly provided with an air cavity that cooperates with the vertical rod to keep the piston;

[0023] A telescopic rod connected to the air cavity is arranged on the vertical blade.

[0024] In the above technical scheme, a gout crystal scraping device provided by the present invention has the following beneficial effects: through the push of the crystals on the pressure plate, the two side wing plates automatically move closer to the position of the middle crystal, thereby driving the rotating saw on the wing plate to approach and cling to the side of the crystal, and the pressure plate of the elastic paddle plate will form an arc-shaped structure to surround the crystal after being compressed, which can effectively avoid accidental injury to the patient's bones and joints during scraping, and then small crystal stones are sucked through the suction channel to prevent the crystal stones from falling on the patient's wound. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0026] Figure 1 An overall three-dimensional schematic diagram provided for an embodiment of the present invention;

[0027] Figure 2 A schematic diagram of the internal structure of a cutter head and a mounting seat provided in an embodiment of the present invention;

[0028] Figure 3 A schematic diagram of the elastic pull plate and the rotary saw structure provided by an embodiment of the present invention;

[0029] Figure 4 A schematic diagram of the structure of an elastic paddle provided in an embodiment of the present invention;

[0030] Figure 5 A schematic diagram of the structure of a transmission rod and a rotary saw provided in an embodiment of the present invention;

[0031] Figure 6 A schematic diagram of the position of the vertical blade and the air cavity provided in an embodiment of the present invention.

[0032] Description of reference numerals:

[0033] 1. Handle; 11. Suction channel; 2. Blade; 21. Vertical blade; 22. Recessed part; 23. Mounting seat; 24. Support rod; 25. Telescopic rod; 26. Connecting pipe; 3. Elastic plate; 31. Wing plate; 32. Pressure plate; 33. Folding part; 331. Opening; 34. Ball; 35. Rotating saw; 351. Second bevel gear; 352. Cutting teeth; 353. Spiral plate; 36. Transmission block; 37. Vertical rod; 38. Air cavity; 39. Partition; 4. First bevel gear; 41. Cutting knife; 42. Left transmission rod; 43. Slow gear; 44. Fast gear; 45. Transmission belt; 46. Right transmission rod; 47. Rotating rod; 48. Fixed seat; 5. Driving rod; 51. Small gear; 52. Large gear; 53. Spring; 54. Bevel block; 6. Driving motor. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0035] like Figure 1-6 As shown, a gout crystal scraping device comprises a handle 1 and a blade 2 arranged at the end of the handle 1, and comprises an elastic plate 3 arranged on the blade 2, which is divided into a pressing plate 32 arranged vertically and movably along the plane where the blade 2 is located and a wing plate 31 arranged symmetrically about the pressing plate 32;

[0036] Rotating a rotary saw 35 disposed on the wing plate 31;

[0037] An opening 331 formed on the elastic plate 3;

[0038] A suction channel 11 is provided on the handle 1 and is used for suctioning the inner cavity formed by the cutter head 2 and the elastic plate 3;

[0039] The pressing plate 32 is driven to move downward and the two wing plates 31 are closed, and the opening 331 is opened.

[0040] Specifically, the cutter head 2 further comprises a mounting seat 23 for assembling the elastic shift plate 3 , and the pressing plate 32 and the wing plates 31 on both sides form a concave structure.

[0041] Furthermore, when scraping the ventilation crystals, the operator holds the handle 1 and drives the blade 2 deep into the ventilation crystals, then rotates the blade 2 and pries up the crystals. At this time, the pressure plate 32 is pushed by the protruding crystals, and the trajectory of the movement is always perpendicular to the plane where the blade 2 is located. When the pressure plate 32 is compressed, the inner wall of the concave structure is further concave, so that the two side wing plates 31 automatically move closer to the position of the middle crystal, thereby driving the rotating saw 35 on the wing plate 31 to approach and cling to the side of the crystal, and the rotating saws 35 on both sides clamp and fix the crystals. The rotating saw 35 can be driven to rotate or vibrate by setting a small motor or a vibration motor, and the crystals can be cut or shaken off by the rotating saw 35. Since the pressure plate 32 of the elastic paddle 3 will form an arc-shaped structure to surround the crystals after being compressed, it can effectively avoid accidental injury to the patient's bone joints during scraping.

[0042] When the pressing plate 32 is under pressure, a paddle can be provided on the opening 331. When the pressing plate 32 moves, the paddle is driven to deflect by deformation, so that the opening 331 is opened. Alternatively, a slide can be provided on the opening 331. When the pressing plate 32 is under pressure, the slide is manually opened to allow the fallen crystal stones to enter the inner cavity surrounded by the elastic paddle 3, and then the small crystal stones are sucked through the suction channel 11 to prevent the crystal stones from falling on the patient's wound.

[0043] In the above technology, the crystal pushes the pressure plate 32 so that the two side wing plates 31 automatically move toward the position of the middle crystal, thereby driving the rotating saw 35 on the wing plate 31 to approach and cling to the side of the crystal. After the pressure plate 32 of the elastic paddle 3 is compressed, an arc-shaped structure will be formed to surround the crystal, which can effectively avoid accidental injury to the patient's bone joints during scraping, and then the small crystal stones are sucked through the suction channel 11 to prevent the crystal stones from falling on the patient's wound.

[0044] As an embodiment further provided by the present invention, a plurality of cutting teeth 352 are arranged in a circumferential array on the rotary saw 35, a channel communicating with the inner cavity is opened in the rotary saw 35, and a plurality of spiral plates 353 are arranged in a circumferential array at the entrance of the channel.

[0045] Specifically, it also includes a ball 34 disposed on the pressure plate 32. When removing multiple crystal stones, the handle 1 can be held to drive the blade head 2 to move along the affected part of the patient. The size of the crystal stone will affect the degree of pressure on the ball 34, so that the amount of movement of the pressure plate 32 changes, and the closing degree of the wing plate 31 changes with the size of the crystal stone. The angle of the rotary saw 35 can be adjusted according to the size of different crystal stones, and the ball 34 can be kept rolling along the surface of the crystal stone by the arrangement. Compared with a scraper, the rolling friction of the ball 34 is smaller, which can avoid discomfort to the patient.

[0046] Furthermore, when the saw 35 rotates, it drives the multiple cutting teeth 352 to penetrate into and cut the crystal stone, and the cut crystal stone will fall into the saw 35 and be guided into the channel by the spiral plate 353. When the saw 35 rotates, it drives the spiral plate 353 to rotate. The crystal stone in the saw 35 stays in the saw 35 under the action of centrifugal force and enters the inner cavity along the channel.

[0047] As another embodiment further provided by the present invention, it also includes a left transmission rod 42 rotatably arranged on the cutter head 2, and a first bevel gear 4 is fixedly arranged at the end of the left transmission rod 42;

[0048] The rotary saw 35 is fixedly provided with a second bevel gear 351 meshing with the first bevel gear 4;

[0049] The rotary saw 35 rotates along the tooth surface of the first bevel gear 4 as the wing plate 31 moves.

[0050] Specifically, a fixed seat 48 is fixedly provided in the cutter head 2, a rotating rod 47 is rotatably provided on the fixed seat 48, and the rotating saw 35 is rotatably provided at the end of the rotating rod 47. When the wing plates 31 approach each other, the rotating saw 35 is driven to deflect, and under the restriction of the rotating rod 47, the rotating trajectory of the rotating saw 35 is always along the first bevel gear 4, so that the meshing state of the first bevel gear 4 and the second bevel gear 351 is maintained, and the rotating saw 35 can be driven to rotate by driving the first bevel gear 4 to rotate.

[0051] As another embodiment further provided by the present invention, it also includes a detection unit for detecting the force applied to the pressure plate 32, and a clutch unit for adjusting the rotation speed of the left transmission rod 42 according to the detection result of the detection unit;

[0052] The clutch unit includes a small gear 51 for driving the left transmission rod 42 to rotate slowly and a large gear 52 for driving the left transmission rod 42 to rotate quickly.

[0053] Specifically, the left transmission rod 42 in the initial state is meshed with the pinion 51, and the right transmission rod 46 is also rotatably arranged in the cutter head 2, the left transmission rod 42 and the right transmission rod 46 are symmetrically arranged and kept synchronously through the transmission belt 45, and the first bevel gear 4 is fixedly arranged at the ends of the left transmission rod 42 and the right transmission rod 46, as shown in FIG. Figure 3 The structure shown also includes a cutting knife 41 fixedly mounted on the first bevel gear 4. The suction channel 11 is located between the two first bevel gears 4. The rotation of the cutting knife 41 can reduce the crystal stone particles to facilitate suction. The detection unit can use a pressure sensor. When it detects that the pressure plate 32 is under too much pressure, the pressure sensor sends a signal to the clutch unit. The clutch unit controls the small gear 51 to disengage and enables the large gear 52 to engage with the left transmission rod 42, so that the rotation speed of the left transmission rod 42 increases, and drives the rotary saw 35 to rotate at a high speed, so as to perform more powerful cutting on the larger crystal stone.

[0054] As another embodiment further provided by the present invention, it also includes a driving motor 6 fixedly arranged on the cutter head 2, a driving rod 5 is slidably arranged on the output shaft of the driving motor 6, and a small gear 51 and a large gear 52 are coaxially arranged on the driving rod 5, and a transmission block 36 for pushing the driving rod 5 is arranged on the pressure plate 32.

[0055] Specifically, the drive motor 6 is fixedly arranged in the mounting seat 23, an inclined block 54 is arranged on the end of the drive rod 5 facing the transmission block 36, and a spring 53 is arranged on the drive rod 5 to keep a distance from the drive motor 6. The slow gear 43 and the fast gear 44 are fixedly sleeved on the left transmission rod 42. In the initial state, the slow gear 43 and the small gear 51 are meshed and transmitted. The pressure plate 32 is pressed and moves downward and pushes the inclined block 54 through the transmission block 36, so that the spring 53 contracts, and the slow gear 43 is disengaged from the small gear 51, and the large gear 52 is meshed with the fast gear 44. Since the number of teeth of the small gear 51 is less than that of the large gear 52, the speed ratio increases after the large gear 52 and the fast gear 44 are meshed, so that the speed of the left transmission rod 42 increases.

[0056] As another embodiment further provided by the present invention, a folding portion 33 is fixedly disposed between the pressing plate 32 and the wing plate 31 , and the folding portion 33 has an unfolded state in which the opening 331 is opened.

[0057] Specifically, in the initial state, the folding portion 33 is in a contracted and folded state, at which time the openings 331 overlap each other and are in a blocked state. When the pressure plate 32 is pressed, it moves downward, driving the folding portion 33 to unfold and open the opening 331, so that the crystal stone fragments can enter the inner cavity.

[0058] As another embodiment further provided by the present invention, it also includes a recessed portion 22 opened at the end of the cutter head 2, on which a vertical blade 21 is arranged.

[0059] Specifically, the vertical blade 21 is rotatably arranged on the recessed portion 22 and keeps synchronous movement with the pressing plate 32. The inner cavity is separated from the recessed portion 22 by the partition 39 on the elastic pick plate 3. When performing the initial cutting, the crystal stone far from the bone joint should be removed first, and then the crystal stone near the joint should be ground by the rotary saw 35. At this time, the vertical blade 21 can penetrate into the crystal stone, and then the vertical blade 21 is pried to make the crystal stone break and fall into the recessed portion 22. Since the operation during the initial removal is relatively simple, the crystal stone debris has a large particle size and can be directly collected in the recessed portion 22 and dumped uniformly without the need for suction through the suction channel 11.

[0060] As another embodiment further provided by the present invention, it also includes a partition plate 39 fixedly arranged on the elastic pick plate 3, on which a vertical rod 37 is fixedly arranged, and an air cavity 38 is fixedly arranged on the cutter head 2 to keep the piston in cooperation with the vertical rod 37;

[0061] A telescopic rod 25 communicating with the air cavity 38 is disposed on the vertical blade 21 .

[0062] Specifically, a support rod 24 is rotatably provided on the recessed portion 22, and the vertical blade 21 is fixedly provided on the support rod 24. When the pressure plate 32 is pressed and moved downward, the vertical rod 37 is driven to squeeze the air cavity 38. The gas in the air cavity 38 enters the telescopic rod 25 through the connecting pipe 26. The telescopic rod 25 extends and drives the support rod 24 and the vertical blade 21 to rise and further penetrate into the crystal stone, so as to better break the crystal stone.

[0063] Working principle: During the initial cutting, the crystal stones away from the bone joints must be removed first. The vertical blade 21 can penetrate deep into the crystal stones, and then the vertical blade 21 is pried to break the crystal stones and fall into the recessed portion 22. Since the operation during the initial removal is relatively simple, the crystal stone debris has a larger particle size and can be directly collected in the recessed portion 22 and dumped uniformly.

[0064] The handle 1 is held and driven to move the blade 2 along the affected part of the patient. The size of the crystal stone will affect the degree of pressure on the ball 34, thereby changing the amount of activity of the pressure plate 32, and making the degree of closing of the wing plate 31 change with the size of the crystal stone, so that the angle of the rotary saw 35 can be adjusted according to the size of different crystal stones. The wing plates 31 drive the rotary saw 35 to deflect in the process of approaching each other. Under the restriction of the rotating rod 47, the rotation trajectory of the rotary saw 35 is always along the first bevel gear 4, so that the meshing state of the first bevel gear 4 and the second bevel gear 351 is maintained. The first bevel gear 4 is driven to rotate, which can drive the rotary saw 35 to rotate. When the rotary saw 35 rotates, it drives the multiple cutting teeth 352 to penetrate and cut the crystal stone, and the cut crystal stone will fall into the rotary saw 35 and be guided into the channel by the spiral plate 353. When the rotary saw 35 rotates, it drives the spiral plate 353 to rotate. The crystal stone in the rotary saw 35 stays in the rotary saw 35 under the action of centrifugal force and enters the inner cavity along the channel.

[0065] When the particle size of the crystal stone is too large, the degree of squeezing on the pressure plate 32 increases. At this time, the pressure plate 32 is pressed downward and pushes the inclined block 54 through the transmission block 36, so that the spring 53 contracts, and the slow gear 43 is disengaged from the small gear 51, and the large gear 52 is meshed with the fast gear 44. Since the number of teeth of the small gear 51 is smaller than that of the large gear 52, the speed ratio increases after the large gear 52 is meshed with the fast gear 44, so that the speed of the left transmission rod 42 increases, and drives the rotary saw 35 to rotate at a high speed, so that the larger crystal stones are cut more forcefully.

[0066] The pressure plate 32 is pressed and moved downward, driving the vertical rod 37 to squeeze the air cavity 38. The gas in the air cavity 38 enters the telescopic rod 25 to extend the telescopic rod 25. The telescopic rod 25 drives the support rod 24 and the vertical blade 21 to rise and further penetrate into the crystal stone, so as to better break the crystal stone.

[0067] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A gout crystal scraping device, comprising a handle (1) and a blade (2) disposed at the end of the handle (1), characterized in that: It comprises an elastic plate (3) arranged on the cutter head (2), which is divided into a pressure plate (32) arranged vertically and movably along the plane where the cutter head (2) is located, and a wing plate (31) arranged symmetrically with respect to the pressure plate (32); Rotating a rotary saw (35) disposed on the wing plate (31); An opening (331) formed on the elastic plate (3); A suction channel (11) is provided on the handle (1) and is used for suctioning the inner cavity formed by the cutter head (2) and the elastic plate (3); The pressing plate (32) is driven to move downward and causes the two wing plates (31) to close together, and the opening (331) to open.

2. The gout crystal scraping device according to claim 1, characterized in that: It also includes a ball (34) disposed on the pressure plate (32).

3. The gout crystal scraping device according to claim 1, characterized in that: The rotary saw (35) is provided with a plurality of cutting teeth (352) in a circumferential array, the rotary saw (35) is provided with a channel communicating with the inner cavity, and a plurality of spiral plates (353) are provided in a circumferential array at the entrance of the channel.

4. The gout crystal scraping device according to claim 1, characterized in that: It also includes a left transmission rod (42) rotatably arranged on the cutter head (2), and a first bevel gear (4) is fixedly arranged at the end of the left transmission rod (42); The rotary saw (35) is fixedly provided with a second bevel gear (351) meshing with the first bevel gear (4); The rotary saw (35) rotates along the tooth grain surface of the first bevel gear (4) as the wing plate (31) moves.

5. The gout crystal scraping device according to claim 4, characterized in that: It also includes a detection unit for detecting the stress condition of the pressure plate (32), and a clutch unit for adjusting the rotation speed of the left transmission rod (42) according to the detection result of the detection unit; The clutch unit comprises a small gear (51) for driving the left transmission rod (42) to rotate slowly and a large gear (52) for driving the left transmission rod (42) to rotate quickly.

6. The gout crystal scraping device according to claim 5, characterized in that: The invention also comprises a driving motor (6) fixedly arranged on the cutter head (2), a driving rod (5) being slidably arranged on the output shaft of the driving motor (6), and the small gear (51) and the large gear (52) are both coaxially arranged on the driving rod (5), and a transmission block (36) for pushing the driving rod (5) is arranged on the pressure plate (32).

7. The gout crystal scraping device according to claim 1, characterized in that: A folding portion (33) is fixedly arranged between the pressing plate (32) and the wing plate (31), and the folding portion (33) has an unfolded state in which the opening (331) is opened.

8. The gout crystal scraping device according to claim 1, characterized in that: It also includes a recessed portion (22) formed at the end of the cutter head (2) and provided with a vertical blade (21).

9. The gout crystal scraping device according to claim 8, characterized in that: The vertical blade (21) is rotatably disposed on the recessed portion (22) and moves synchronously with the pressing plate (32).

10. The gout crystal scraping device according to claim 9, characterized in that: It also includes a partition plate (39) fixedly arranged on the elastic pick plate (3), on which a vertical rod (37) is fixedly arranged, and the cutter head (2) is fixedly provided with an air cavity (38) that cooperates with the vertical rod (37) to maintain a piston; The vertical blade (21) is provided with a telescopic rod (25) which is in communication with the air cavity (38).

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