Traction device for treating arthralgia

Abstract

The invention discloses a traction device for arthralgia treatment, and relates to the technical field of medical instruments, the traction device comprises a bed board and a supporting column, the bed board and the supporting column are fixedly connected, one side, close to the supporting column, of the bed board is movably connected with a lifting block, and the supporting column is provided with a traction treatment assembly. The first traction rope and the second traction rope are arranged on the limbs of a patient in a sleeving mode, the first sleeve can be pulled in the vertical direction through movement of the first traction rope, the second sleeve can be pulled in the vertical direction through movement of the second traction rope, and a limb binding assembly is arranged on the second sleeve; the rotation of a gear can drive an annular gear to rotate on the inner side of a second sleeve, the rotation of the annular gear can drive a binding rope to wind and bind the limbs of the patient, the starting of a second motor can drive a rotating rod to rotate, the rotation of the rotating rod can wind and unwind the binding rope, and the side, close to the supporting column, of the bed board is fixedly connected with a headrest.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a traction device for treating joint pain. Background Art

[0002] Joint pain is one of the most common joint conditions and is a highly prevalent condition. Traction therapy is a commonly used treatment for joint pain. Traction therapy uses specialized traction equipment to apply appropriate, gradual traction to the patient's joints. This treatment method not only relieves muscle tension around the joints but also adjusts joint structure to a certain extent, reducing joint pressure, thereby achieving the goal of treating joint pain and restoring joint function.

[0003] In traditional treatment of joint pain, doctors use external force to stretch the joints to relieve nerve compression and improve joint space, gradually forming a traction system with gravity or mechanical force as the core. Typical devices include cervical traction frames and lumbar three-dimensional traction beds. They mostly use manual adjustment of traction angle and strength, and use straps to fix the limbs to promote tissue repair through continuous or intermittent stretching. Traditional restraint and fixation can easily lead to blood circulation disorders or limb slippage due to improper tightness. Traditional single-direction traction can easily cause local stress concentration and is difficult to match the physiological curvature of the joint, causing discomfort to the patient. Therefore, there is a need to propose a traction device for treating joint pain. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the existing technology that traditional restraint and fixation can easily cause blood circulation disorders or limb slippage due to improper tightness, and traditional single-direction traction can easily cause local stress concentration and is difficult to match the physiological curvature of the joint, thereby causing discomfort to the patient. A traction device for treating joint pain is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A traction device for treating joint pain comprises a bed plate and a support column, wherein the bed plate and the support column are fixedly connected, a lifting block is movably connected to a side of the bed plate close to the support column, a traction treatment assembly is provided on the support column, and the traction treatment assembly comprises a rotating shaft movably connected to the support column, a first traction rope and a second traction rope provided on the rotating shaft, a first sleeve provided on the first traction rope, and a second sleeve movably connected to the second traction rope, the rotation of the rotating shaft drives the first traction rope and the second traction rope to move, the first traction rope and the second traction rope are respectively sleeved on the patient's limbs, and the movement of the first traction rope pulls the first sleeve in the vertical direction. The movement of the second traction rope will pull the second sleeve in the vertical direction. The second sleeve is provided with a limb restraint assembly, and the limb restraint assembly includes a gear movably connected to the second sleeve, a ring gear provided on the inner side of the second sleeve, and a second motor movably connected to the second sleeve, a rotating rod provided on the second motor, and a restraint rope provided on the outer side of the rotating rod. The rotation of the gear will drive the ring gear to rotate on the inner side of the second sleeve, and the rotation of the ring gear will drive the restraint rope to wrap around and restrain the patient's limbs. The start-up of the second motor will drive the rotating rod to rotate, and the rotation of the rotating rod will retract and release the restraint rope. A headrest is fixedly connected to the side of the bed board close to the support column.

[0007] The above technical solution further includes:

[0008] The bed plate and the lifting block are slidably connected, the lower part of the lifting block and the screw rod are rotationally connected, and the bed plate and the screw rod are threadedly connected.

[0009] A servo motor is fixedly connected to the side of the support column away from the lifting block, the output shaft end of the servo motor is fixedly connected to the rotating shaft, the outer side of the rotating shaft is fixedly connected to the first traction rope, and the end of the first traction rope away from the rotating shaft is fixedly connected to the first sleeve.

[0010] The support column is fixedly connected to a first auxiliary pulley on the side away from the lifting block, and the support column is fixedly connected to a third auxiliary pulley on the side away from the lifting block. The outer side of the first auxiliary pulley is in contact with the first traction rope, and a first through hole is opened on the inner side of the T-shaped plate, and the first traction rope passes through the entire first through hole.

[0011] The support column is fixedly connected to the T-shaped plate at one end away from the bed board, and a second auxiliary pulley is fixedly connected to the side of the T-shaped plate close to the bed board. The second auxiliary pulley is in contact with the first traction rope, and a fourth auxiliary pulley is fixedly connected to the side of the T-shaped plate away from the bed board. A second through hole is opened on the outer side of the T-shaped plate.

[0012] The outer side of the rotating shaft is fixedly connected to the second traction rope, the second traction rope is in contact with the third auxiliary pulley, the second traction rope is in contact with the fourth auxiliary pulley, and the second traction rope passes through the entire second through hole.

[0013] The end of the second traction rope away from the rotating shaft is symmetrically fixedly connected to the extension rope, the end of the extension rope away from the second traction rope is fixedly connected to the second sleeve, the upper part of the second sleeve is fixedly connected to the first motor, and the output shaft end of the first motor is fixedly connected to the gear.

[0014] A rotation groove is provided on the outer side of the second sleeve, the inner side of the rotation groove is rotationally connected to the ring gear, the gear and the ring gear are meshed, and the side of the ring gear away from the gear is fixedly connected to the protrusion.

[0015] An L-shaped plate is fixedly connected to the upper portion of the second sleeve, an end of the L-shaped plate away from the second sleeve is fixedly connected to the second motor, and an output shaft end of the second motor is fixedly connected to a rotating disk.

[0016] The end of the rotating disk away from the second motor is fixedly connected to the spring, the end of the spring away from the rotating disk is fixedly connected to the rotating rod, the outer side of the rotating rod is fixedly connected to the binding rope, and the end of the binding rope away from the rotating rod is fixedly connected to the protrusion.

[0017] The present invention has the following beneficial effects:

[0018] 1. In the present invention, a traction therapy component is provided and dual traction is formed through mechanical structure innovation. The first traction rope and the second traction rope cooperate with the sleeve design to realize multi-dimensional mechanical distribution of the limbs, accurately control the stretching direction and intensity, and avoid the local stress concentration caused by traditional single-direction traction. The synchronous movement mechanism of the first traction rope and the second traction rope driven by the rotating shaft can match the physiological curvature of the joint, and cooperate with the lifting block to fine-tune the bed board, which not only ensures the continuous stability of the traction force, but also can perform personalized angle compensation according to the patient's body shape, significantly improving the safety of treatment.

[0019] 2. In the present invention, a limb restraint component is provided, and the second motor drives the rotating rod to realize the automatic retraction and extension of the restraint rope. This mechanical restraint system can automatically adapt the restraint pressure according to the thickness of the patient's limbs, which not only avoids the obstruction of blood circulation caused by the traditional straps being too tight, but also prevents the limb displacement during traction from affecting the therapeutic effect. The gear meshing structure ensures that the restraint force is evenly distributed, and cooperates with the synchronous stretching of the double traction ropes to enable the joints to obtain precise traction within the physiological curvature range. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1This is a schematic diagram of the overall structure of a traction device for treating joint pain proposed by the present invention;

[0021] Figure 2 This is a schematic diagram of the overall bottom-up structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the overall top view structure of the present invention;

[0023] Figure 4 It is a schematic diagram of the overall cross-sectional structure of the present invention;

[0024] Figure 5 is a partial structural diagram of a limb restraint assembly in the present invention;

[0025] Figure 6 for Figure 1 A schematic diagram of the structure at center A;

[0026] Figure 7 for Figure 3 A magnified schematic diagram of the structure at point B in the middle;

[0027] Figure 8 for Figure 4 A magnified schematic diagram of the structure at point C in the middle;

[0028] Figure 9 for Figure 4 Enlarged schematic diagram of the structure at point D in the middle.

[0029] In the figure: 1. Bed board; 2. Support column; 3. T-shaped plate; 4. Screw; 5. Lifting block; 6. Servo motor; 7. Rotating shaft; 8. First traction rope; 9. First auxiliary pulley; 10. First through hole; 11. Second auxiliary pulley; 12. First sleeve; 13. Second traction rope; 14. Third auxiliary pulley; 15. Fourth auxiliary pulley; 16. Second through hole; 17. Extension rope; 18. Second sleeve; 19. First motor; 20. Gear; 21. Rotating groove; 22. Ring gear; 23. Protrusion; 24. Restraint rope; 25. L-shaped plate; 26. Second motor; 27. Rotating disk; 28. Spring; 29. Rotating rod; 30. Headrest. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Example 1

[0032] like Figures 1-9 As shown, a traction device for treating joint pain proposed by the present invention includes a bed board 1 and a support column 2, which are fixedly connected to each other, and a lifting block 5 is movably connected to the side of the bed board 1 close to the support column 2, and a traction treatment component is provided on the support column 2, and the traction treatment component includes a rotating shaft 7 movably connected to the support column 2, a first traction rope 8 and a second traction rope 13 provided on the rotating shaft 7, a first sleeve 12 provided on the first traction rope 8, and a second sleeve 18 movably connected to the second traction rope 13. The rotation of the rotating shaft 7 will drive the first traction rope 8 and the second traction rope 13 to move, and the first traction rope 8 and the second traction rope 13 are respectively sleeved on the patient's limbs. The movement of the first traction rope 8 will pull the first sleeve 12 in the vertical direction, and the second traction rope The movement of 13 will pull the second sleeve 18 in the vertical direction. The second sleeve 18 is provided with a limb restraint assembly, which includes a gear 20 movably connected to the second sleeve 18, a ring gear 22 provided on the inner side of the second sleeve 18, and a second motor 26 movably connected to the second sleeve 18, a rotating rod 29 provided on the second motor 26, and a restraint rope 24 provided on the outer side of the rotating rod 29. The rotation of the gear 20 will drive the ring gear 22 to rotate on the inner side of the second sleeve 18, and the rotation of the ring gear 22 will drive the restraint rope 24 to wrap around and restrain the patient's limbs. The start-up of the second motor 26 will drive the rotating rod 29 to rotate, and the rotation of the rotating rod 29 will retract and release the restraint rope 24. A headrest 30 is fixedly connected to the side of the bed board 1 close to the support column 2.

[0033] The bed board 1 and the lifting block 5 are slidably connected, the lower part of the lifting block 5 and the screw rod 4 are rotationally connected, and the bed board 1 and the screw rod 4 are threadedly connected.

[0034] A servo motor 6 is fixedly connected to the side of the support column 2 away from the lifting block 5, the output shaft end of the servo motor 6 is fixedly connected to the rotating shaft 7, the outer side of the rotating shaft 7 is fixedly connected to the first traction rope 8, and the end of the first traction rope 8 away from the rotating shaft 7 is fixedly connected to the first sleeve 12.

[0035] A first auxiliary pulley 9 is fixedly connected to the side of the support column 2 away from the lifting block 5, and a third auxiliary pulley 14 is fixedly connected to the side of the support column 2 away from the lifting block 5. The outer side of the first auxiliary pulley 9 is in contact with the first traction rope 8. A first through hole 10 is opened on the inner side of the T-shaped plate 3, and the first traction rope 8 passes through the entire first through hole 10.

[0036] The support column 2 is fixedly connected to the end away from the bed board 1 and the T-shaped board 3. The side of the T-shaped board 3 close to the bed board 1 is fixedly connected to the second auxiliary pulley 11. The second auxiliary pulley 11 is in contact with the first traction rope 8. The side of the T-shaped board 3 away from the bed board 1 is fixedly connected to the fourth auxiliary pulley 15. A second through hole 16 is opened on the outer side of the T-shaped board 3.

[0037] The outer side of the rotating shaft 7 is fixedly connected to the second traction rope 13 , the second traction rope 13 is in contact with the third auxiliary pulley 14 , the second traction rope 13 is in contact with the fourth auxiliary pulley 15 , and the second traction rope 13 passes through the entire second through hole 16 .

[0038] In this embodiment, the specific implementation method is that the patient lies on the upper part of the bed board 1 with his head resting on the upper part of the headrest 30. Because the bed board 1 and the screw rod 4 are threadedly connected, the upper part of the screw rod 4 and the lifting block 5 are rotatably connected. The rotating screw rod 4 can drive the lifting block 5 to move back and forth in the horizontal direction. The movement of the lifting block 5 will lift the patient's legs. When in use, the first sleeve 12 needs to be put on the patient's calf, and the second sleeve 18 is put on the patient's wrist. By starting the servo motor 6, the rotation of the output shaft end of the servo motor 6 will drive the rotating shaft 7 to rotate. The rotation of the rotating shaft 7 will wrap the first traction rope 8 around the outside. At this time, the first traction rope 8 will be shortened, and the first traction rope 8 will move on the outside of the first auxiliary pulley 9. After the first traction rope 8 passes through the first through hole 10, it contacts the second auxiliary pulley 11. The function of the wheel 9 and the second auxiliary pulley 11 is to change the direction of the first traction rope 8. As the first traction rope 8 shortens, the first sleeve 12 will be pulled back and forth in the vertical direction. The back and forth movement of the first sleeve 12 can pull the patient's calf. The rotation of the rotating shaft 7 will drive the second traction rope 13 to shorten, and the second traction rope 13 will slide on the outside of the third auxiliary pulley 14 and the fourth auxiliary pulley 15. The third auxiliary pulley 14 and the fourth auxiliary pulley 15 mainly play the role of changing the direction of the second traction rope 13. The second traction rope 13 passes through the second through hole 16 and is connected to the extension rope 17. The shortening of the second traction rope 13 can drive the extension rope 17 to move. The movement of the extension rope 17 can drive the second sleeve 18 to move in the vertical direction. The movement of the second sleeve 18 can drive the patient's hand to move.

[0039] Example 2

[0040] like Figures 1-9 As shown, based on the first embodiment, the end of the second traction rope 13 away from the rotating shaft 7 is symmetrically fixedly connected to the extension rope 17, the end of the extension rope 17 away from the second traction rope 13 is fixedly connected to the second sleeve 18, the upper part of the second sleeve 18 is fixedly connected to the first motor 19, and the output shaft end of the first motor 19 is fixedly connected to the gear 20.

[0041] A rotation groove 21 is formed on the outer side of the second sleeve 18 , and the inner side of the rotation groove 21 is rotationally connected to the ring gear 22 . The gear 20 and the ring gear 22 are meshed with each other, and the side of the ring gear 22 away from the gear 20 is fixedly connected to the protrusion 23 .

[0042] An L-shaped plate 25 is fixedly connected to the upper portion of the second sleeve 18 . An end of the L-shaped plate 25 away from the second sleeve 18 is fixedly connected to the second motor 26 . A rotating disk 27 is fixedly connected to the output shaft end of the second motor 26 .

[0043] The end of the rotating disk 27 away from the second motor 26 is fixedly connected to the spring 28, the end of the spring 28 away from the rotating disk 27 is fixedly connected to the rotating rod 29, the outer side of the rotating rod 29 is fixedly connected to the binding rope 24, and the end of the binding rope 24 away from the rotating rod 29 is fixedly connected to the protrusion 23.

[0044] In this embodiment, the specific implementation method is that when the second sleeve 18 is put on the patient's hand, the first motor 19 will start, and the rotation of the output shaft end of the first motor 19 will drive the gear 20 to rotate. Because the gear 20 and the ring gear 22 are engaged, the rotation of the gear 20 will drive the ring gear 22 to rotate on the inner side of the rotation groove 21, and the rotation of the ring gear 22 will drive the protrusion 23 to rotate. The rotation of the protrusion 23 will drive the restraint rope 24 to wrap around the patient's hand to restrain the patient's hand. When the protrusion 23 rotates, the second motor 26 will start. The function of the L-shaped plate 25 is to connect the second sleeve 18 and the second motor 26, so that the second motor 26 can maintain The rotation of the output shaft of the second motor 26 will drive the rotating disk 27 to rotate, and the rotation of the rotating disk 27 will drive the spring 28 to drive the rotating rod 29 to rotate. The restraint rope 24 is wrapped around the outside of the rotating rod 29. As the rotating rod 29 rotates, the rotation of the rotating rod 29 will drive the retraction and extension of the restraint rope 24. When the rotation of the protrusion 23 drives the restraint rope 24 to restrain the patient's hand, the patient's hand will squeeze the rotating rod 29. The rotating rod 29 will slide toward the side of the second motor 26 due to the action of the spring 28, and the rotating rod 29 will slide to the inside of the second sleeve 18. When the squeezing of the rotating rod 29 is released, the rotating rod 29 will return to its initial position.

[0045] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A traction device for treating joint pain, comprising a bed board (1) and a support column (2), characterized in that: The bed plate (1) and the support column (2) are fixedly connected, and a lifting block (5) is movably connected to the side of the bed plate (1) close to the support column (2). A traction treatment component is provided on the support column (2), and the traction treatment component includes a rotating shaft (7) movably connected to the support column (2), a first traction rope (8) and a second traction rope (13) provided on the rotating shaft (7), a first sleeve (12) provided on the first traction rope (8), and a second sleeve (18) movably connected to the second traction rope (13). The rotation of the rotating shaft (7) drives the first traction rope (8) and the second traction rope (13) to move. The first traction rope (8) and the second traction rope (13) are respectively sleeved on the patient's limbs. The movement of the first traction rope (8) pulls the first sleeve (12) in the vertical direction, and the movement of the second traction rope (13) pulls the second sleeve (18) in the vertical direction. The second sleeve (18) is provided with a limb restraint assembly for traction in the vertical direction. The limb restraint assembly includes a gear (20) movably connected to the second sleeve (18), a ring gear (22) provided inside the second sleeve (18), a second motor (26) movably connected to the second sleeve (18), a rotating rod (29) provided on the second motor (26), and a restraint rope (24) provided outside the rotating rod (29). The rotation of the gear (20) drives the ring gear (22) to rotate inside the second sleeve (18), and the rotation of the ring gear (22) drives the restraint rope (24) to wrap around and restrain the patient's limbs. The start of the second motor (26) drives the rotating rod (29) to rotate, and the rotation of the rotating rod (29) retracts and releases the restraint rope (24). A headrest (30) is fixedly connected to the side of the bed board (1) close to the support column (2).

2. A traction device for treating joint pain according to claim 1, characterized in that: The bed plate (1) and the lifting block (5) are connected in a sliding manner, the lower part of the lifting block (5) and the screw rod (4) are connected in a rotational manner, and the bed plate (1) and the screw rod (4) are connected in a threaded manner.

3. A traction device for treating joint pain according to claim 1, characterized in that: A servo motor (6) is fixedly connected to the side of the support column (2) away from the lifting block (5); the output shaft end of the servo motor (6) is fixedly connected to the rotating shaft (7); the outer side of the rotating shaft (7) is fixedly connected to the first traction rope (8); and the end of the first traction rope (8) away from the rotating shaft (7) is fixedly connected to the first sleeve (12).

4. A traction device for treating joint pain according to claim 1, characterized in that: The side of the support column (2) away from the lifting block (5) is fixedly connected to a first auxiliary pulley (9), and the side of the support column (2) away from the lifting block (5) is fixedly connected to a third auxiliary pulley (14), the outer side of the first auxiliary pulley (9) is in contact with the first traction rope (8), and the inner side of the T-shaped plate (3) is provided with a first through hole (10), and the first traction rope (8) passes through the entire first through hole (10).

5. The traction device for treating joint pain according to claim 1, characterized in that: The support column (2) is fixedly connected to the T-shaped plate (3) at one end away from the bed plate (1); a second auxiliary pulley (11) is fixedly connected to the side of the T-shaped plate (3) close to the bed plate (1); the second auxiliary pulley (11) is in contact with the first traction rope (8); a fourth auxiliary pulley (15) is fixedly connected to the side of the T-shaped plate (3) away from the bed plate (1); and a second through hole (16) is provided on the outer side of the T-shaped plate (3).

6. The traction device for treating joint pain according to claim 1, characterized in that: The outer side of the rotating shaft (7) is fixedly connected to the second traction rope (13), the second traction rope (13) is in contact with the third auxiliary pulley (14), the second traction rope (13) is in contact with the fourth auxiliary pulley (15), and the second traction rope (13) passes through the entire second through hole (16).

7. A traction device for treating joint pain according to claim 1, characterized in that: An end of the second traction rope (13) away from the rotating shaft (7) is symmetrically fixedly connected to an extension rope (17), an end of the extension rope (17) away from the second traction rope (13) is fixedly connected to a second sleeve (18), an upper portion of the second sleeve (18) is fixedly connected to a first motor (19), and an output shaft end of the first motor (19) is fixedly connected to a gear (20).

8. The traction device for treating joint pain according to claim 1, characterized in that: A rotation groove (21) is provided on the outer side of the second sleeve (18), the inner side of the rotation groove (21) is rotationally connected to the ring gear (22), the gear (20) and the ring gear (22) are meshed, and the side of the ring gear (22) away from the gear (20) is fixedly connected to the protrusion (23).

9. The traction device for treating joint pain according to claim 1, characterized in that: An L-shaped plate (25) is fixedly connected to the upper portion of the second sleeve (18), and an end of the L-shaped plate (25) away from the second sleeve (18) is fixedly connected to a second motor (26), and an output shaft end of the second motor (26) is fixedly connected to a rotating disk (27).

10. The traction device for treating joint pain according to claim 9, characterized in that: The end of the rotating disk (27) away from the second motor (26) is fixedly connected to the spring (28), the end of the spring (28) away from the rotating disk (27) is fixedly connected to the rotating rod (29), the outer side of the rotating rod (29) is fixedly connected to the binding rope (24), and the end of the binding rope (24) away from the rotating rod (29) is fixedly connected to the protrusion (23).

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