Lower limb traction fixing device for knee joint

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a lower limb traction fixing device for knee joints, which comprises a binding belt and a frame, a support is fixedly mounted on the frame, a pulley is arranged on the support, one end of a traction rope is connected with a weight block, a sliding groove is arranged on the inner side of the frame, a clamping groove is arranged in the sliding groove, and the clamping groove is connected with the traction rope. And a connecting block is arranged in the sliding groove, a limiting assembly is arranged in the connecting block, the other end of the connecting block is connected with a protection plate, and a notch is formed in the protection plate. The weight block can be prevented from being accidentally touched by installing the protection plate, after a traction rope is connected with the weight block, the traction rope is placed in the notch, the weight block is made to be perpendicular to the lower portion of the protection plate, then the protection plate is pushed downwards, the protection plate slides downwards in the sliding groove through the connecting block, and the weight block is prevented from being accidentally touched. The protection plate is moved to the outer side of the weight block to shield the weight block, and the situation that accompanying personnel touch the weight block by mistake in the walking process, and knee joint traction treatment of the patient is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a lower limb traction and fixation device for a knee joint. Background Art

[0002] A lower limb traction fixation device for the knee joint is a medical device used to provide support and fixation after knee surgery or treatment. A lower limb traction fixation device for the knee joint can help maintain the correct position of the knee joint, promote healing, reduce pain, and prevent further injury.

[0003] Patent document CN219516722U discloses a traction device for knee joint treatment, "including a horizontally arranged bed body, a slide plate is horizontally arranged just above the foot of the bed body, a foot pedal for placing the patient's feet is vertically fixed on the top of the slide plate, a plurality of first straps for binding the soles of the patient's feet are arranged on the foot pedal, a plurality of second straps for binding the patient's calves are arranged on the top of the slide plate, a fixed pulley is installed on the right end of the bed body, a traction rope is connected to the right end of the slide plate, the traction rope passes through the fixed pulley and is connected to a load-bearing plate that bears weight, and a plurality of third straps for binding the patient's thighs are arranged on the top of the bed body. The utility model is that the patient lies on the bed body, his calves are placed on the slide plate, the soles of the feet are in contact with the foot pedal, and then the patient's calves and soles of the feet are respectively bound by the first strap and the second strap. The patient's thigh is then bound by a third strap, thereby achieving the purpose of fully binding the patient's lower limbs. However, the traction device for knee joint treatment in the above-mentioned public document mainly considers fully binding the patient's lower limbs, but does not take into account that when performing traction treatment on the patient's lower limbs, the weight block is generally hung at the end of the bed. The accompanying person is likely to bump into the weight block at the end of the bed when walking, causing the weight block to shake. The shaking weight block will make the patient feel uncomfortable or even painful, affecting the smooth progress of the treatment. What's worse, it will cause impact on the knee joint, increase the burden on the joint, and thus cause the lower limb traction and fixation device to fail to achieve the expected effect of knee joint treatment. Therefore, it is necessary to develop a lower limb traction and fixation device for the knee joint, which can prevent the weight block from being accidentally hit. Utility Model Content

[0004] The purpose of the utility model is to provide a lower limb traction and fixation device for a knee joint, so as to solve the technical problem in the above background technology that the weight block may be accidentally hit and increase the discomfort of the patient.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a lower limb traction and fixation device for a knee joint, comprising a restraint belt and a frame, a traction belt fixedly mounted on the restraint belt, a traction rope connected to the traction belt, a bracket fixedly mounted on the frame, a pulley provided on the bracket, and the other end of the traction rope passing through the interior of the pulley and connected to the pulley, and the other end of the traction rope being connected to a weight block;

[0006] A slide groove is provided on the inner side of the frame, a plurality of slots are provided in the slide groove, a connecting block is slidably provided in the slide groove, a limiting component is provided in the connecting block, and the connecting block is connected to the slide groove through the limiting component, and the other end of the connecting block is fixedly connected to a protective plate, and the protective plate is located on one side of the weight block, a notch is provided on the protective plate, and the traction rope is located in the notch.

[0007] Preferably, the limiting assembly includes a cavity, a square groove, a spring and a clamping block, the cavity is arranged in the connecting block, the square groove is arranged on the connecting block, and the square groove is communicated with the cavity, the spring is fixedly installed in the cavity, the clamping block is fixedly connected to the other end of the spring, and the clamping block passes through the interior of the cavity through the square groove.

[0008] Preferably, the interior of the card slot is configured to be V-shaped, the top of the card block is configured to be V-shaped, and the card block is engaged in the card slot.

[0009] Preferably, a storage box is fixedly installed on the top of the bracket, a micro motor is fixedly installed in the storage box, the output end of the micro motor is fixedly connected to a screw rod, a threaded ring is threaded on the screw rod, an extension rod is fixedly connected to the threaded ring, a movable groove is provided on the storage box, and the extension rod passes through the interior of the movable groove and is slidably connected to the movable groove, and the pulley is fixedly installed on the other end of the extension rod.

[0010] Preferably, a power supply block is provided in the storage box, and the power supply block is connected to the micro motor circuit.

[0011] Preferably, a fixing belt is fixedly connected to the restraint belt, and the fixing belt is made of elastic fabric.

[0012] Preferably, the top end of the frame is fixedly connected with an arc-shaped hanging ring.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model can prevent the weight block from being accidentally touched by installing a protective plate. First, after the traction rope is connected to the weight block, the traction rope is passed around one side of the protective plate and placed into the notch, so that the weight block is vertically below the protective plate. Then, the protective plate is pushed downward. The protective plate slides downward in the slide groove through the connecting block, so that the protective plate moves to the outside of the weight block to block the weight block, thereby improving the stability of the weight block, preventing the accompanying person from accidentally touching the weight block while walking and affecting the patient's knee joint traction treatment, and reducing the risk of the patient feeling discomfort during traction treatment of the knee joint;

[0015] 2. The utility model facilitates automatic adjustment of traction force by installing a screw rod. First, the micro motor is started by wireless remote control to drive the screw rod to rotate. The screw rod will drive the extension rod to perform linear motion in the movable groove through the threaded ring. Then the extension rod will synchronously drive the pulley to slide up and down. The traction force can be automatically adjusted without manually adjusting the position of the traction rope on the pulley. The traction force of the lower limb traction fixation device can be accurately controlled to ensure the maximum treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 for Figure 1 A magnified schematic diagram of the structure A in the middle;

[0018] Figure 3 This is a schematic diagram of the structure of the limit assembly of the utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the storage box of the present invention.

[0020] In the figure: 1. restraint belt; 2. frame; 3. traction belt; 4. bracket; 5. pulley; 6. traction rope; 7. weight block; 8. slide groove; 9. card slot; 10. connecting block; 11. protective plate; 12. notch; 13. cavity; 14. spring; 15. square groove; 16. card block; 17. storage box; 18. micro motor; 19. screw rod; 20. threaded ring; 21. extension rod; 22. movable groove; 23. power supply block; 24. fixing belt; 25. arc hanging ring. DETAILED DESCRIPTION

[0021] 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 embodiments described 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.

[0022] See also Figure 1 、 Figure 2 and Figure 3 A lower limb traction fixation device for a knee joint comprises a restraint belt 1 and a frame 2, a traction belt 3 is fixedly installed on the restraint belt 1, a traction rope 6 is connected to the traction belt 3, a bracket 4 is fixedly installed on the frame 2, a pulley 5 is provided on the bracket 4, and the other end of the traction rope 6 passes through the interior of the pulley 5 and is connected to the pulley 5, and the other end of the traction rope 6 is connected to a weight block 7, a fixing belt 24 is fixedly connected to the restraint belt 1, and the fixing belt 24 is elastic fabric, and an arc-shaped hanging ring 25 is fixedly connected to the top of the frame 2. When using the lower limb traction fixation device to traction the patient's knee joint, first use the restraint belt 1 to wrap the patient's knee joint, connect the two sides of the restraint belt 1 through the Velcro on the fixing belt 24, so as to fix the patient's knee joint, and then put the frame 2 is hung at the end of the bed through the arc-shaped hanging ring 25, and then the traction rope 6 is connected to the traction belt 3. The other end of the traction rope 6 is passed through the pulley 5 and connected to the weight block 7 vertically on one side of the frame 2. In this way, the weight of the weight block 7 will pull the traction belt 3 through the traction rope 6, thereby performing traction treatment on the patient's knee joint. However, when performing traction treatment on the patient's lower limbs, the weight block 7 is generally hung at the end of the bed. The accompanying person is likely to collide with the weight block 7 at the end of the bed when walking, causing the weight block 7 to shake. The shaking of the weight block 7 will make the patient feel uncomfortable or even painful, affecting the smooth progress of the treatment. What's worse, it will cause impact on the knee joint, increase the burden on the joint, and thus cause the lower limb traction fixation device to fail to achieve the expected effect of treating the knee joint.

[0023] The inner side of the frame 2 is provided with a slide groove 8, a plurality of card slots 9 are provided in the slide groove 8, a connecting block 10 is slidably provided in the slide groove 8, a limit assembly is provided in the connecting block 10, and the connecting block 10 is connected to the slide groove 8 through the limit assembly, and the other end of the connecting block 10 is fixedly connected with a protective plate 11, and the protective plate 11 is located on one side of the weight block 7, a notch 12 is provided on the protective plate 11, and the traction rope 6 is located in the notch 12, when the weight block 7 is prevented from being accidentally touched, the protective plate 11 can be installed to prevent the weight block 7 from being accidentally touched. First, when the traction rope After 6 is connected to the weight block 7, the traction rope 6 is passed around one side of the protective plate 11 and placed into the notch 12, so that the weight block 7 is vertically below the protective plate 11, and then the protective plate 11 is pushed downward. The protective plate 11 slides downward in the slide groove 8 through the connecting block 10, so that the protective plate 11 moves to the outside of the weight block 7 to block the weight block 7, thereby improving the stability of the weight block 7, preventing the accompanying personnel from accidentally touching the weight block 7 while walking and affecting the patient's knee joint traction treatment, and reducing the risk of the patient feeling uncomfortable during traction treatment of the knee joint.

[0024] See also Figure 2 and Figure 3The limit assembly includes a cavity 13, a square groove 15, a spring 14 and a card block 16. The cavity 13 is arranged in the connecting block 10, and the square groove 15 is arranged on the connecting block 10, and the square groove 15 is connected to the cavity 13. The spring 14 is fixedly installed in the cavity 13, and the card block 16 is fixedly connected to the other end of the spring 14, and the card block 16 passes through the interior of the cavity 13 through the square groove 15. The interior of the card slot 9 is set to a V shape, and the top of the card block 16 is set to a V shape, and the card block 16 is engaged in the card slot 9. When the connecting block 10 is not moved, the connecting block 10 is through the V-shaped card The block 16 is engaged in the V-shaped slot 9 to limit the connecting block 10. When the connecting block 10 is moved, because the V-shaped block 16 and both sides of the slot 9 are sloped, external force is applied to the connecting block 10, and the block 16 will shrink into the cavity 13 through the spring 14, so that the block 16 moves out of the slot 9. When the block 16 moves to the next slot 9, the compressed spring 14 resets and pushes the block 16 into the slot 9. Therefore, when the connecting block 10 moves to any position of the slide groove 8, the protective plate 11 can be automatically locked by the limit assembly.

[0025] See also Figure 1 and Figure 4 The top of the bracket 4 is fixedly installed with a storage box 17, and a micro motor 18 is fixedly installed in the storage box 17. The output end of the micro motor 18 is fixedly connected to a screw rod 19, and a threaded ring 20 is threadedly connected to the screw rod 19. The threaded ring 20 is fixedly connected to an extension rod 21. A movable groove 22 is provided on the storage box 17, and the extension rod 21 passes through the interior of the movable groove 22 and is slidably connected to the movable groove 22. The pulley 5 is fixedly installed on the other end of the extension rod 21. When the traction force is automatically adjusted, it is convenient to automatically adjust the traction force by installing the screw rod 19. First, the micro motor 18 is started by wireless remote control to drive the screw rod 19 to rotate, and the screw rod 19 will drive the extension rod 21 to perform linear motion in the movable groove 22 through the threaded ring 20, and then the extension rod 21 will synchronously drive the pulley 5 to slide up and down. There is no need to manually adjust the position of the traction rope 6 on the pulley 5 to automatically adjust the traction force, accurately control the traction force of the lower limb traction fixation device, and ensure maximum treatment effect.

[0026] See also Figure 4 A power supply block 23 is provided in the storage box 17 , and the power supply block 23 is connected to the micro motor 18 circuit. The power supply block 23 is used to provide power to the micro motor 18 .

[0027] Working principle: when avoiding the weight block 7 from being accidentally touched, the protective plate 11 can be installed to prevent the weight block 7 from being accidentally touched. First, after the traction rope 6 is connected to the weight block 7, the traction rope 6 is passed around one side of the protective plate 11 and placed into the notch 12, so that the weight block 7 is vertically below the protective plate 11, and then the protective plate 11 is pushed downward. The protective plate 11 slides downward in the chute 8 through the connecting block 10, so that the protective plate 11 moves to the outside of the weight block 7 to block the weight block 7, thereby improving the stability of the weight block 7 and preventing the accompanying personnel from accidentally touching the weight block 7 while walking, affecting the patient's knee joint traction treatment, and reducing The risk of increasing discomfort for patients during traction therapy of the knee joint is reduced. When the traction force is automatically adjusted, the screw rod 19 is installed to facilitate automatic adjustment of the traction force. First, the micro motor 18 is started by wireless remote control to drive the screw rod 19 to rotate. The screw rod 19 will drive the extension rod 21 to perform linear motion in the movable groove 22 through the threaded ring 20, and then the extension rod 21 will synchronously drive the pulley 5 to slide up and down. The traction force can be automatically adjusted without manually adjusting the position of the traction rope 6 on the pulley 5, and the traction force of the lower limb traction fixation device can be accurately controlled to ensure the maximization of the treatment effect.

[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A lower limb traction and fixation device for a knee joint, comprising a restraining belt (1) and a frame (2), characterized in that: A traction belt (3) is fixedly mounted on the restraint belt (1), a traction rope (6) is connected to the traction belt (3), a bracket (4) is fixedly mounted on the frame (2), a pulley (5) is provided on the bracket (4), and the other end of the traction rope (6) passes through the interior of the pulley (5) and is connected to the pulley (5), and the other end of the traction rope (6) is connected to a weight block (7); A slide groove (8) is provided on the inner side of the frame (2), a plurality of slots (9) are provided in the slide groove (8), a connecting block (10) is slidably provided in the slide groove (8), a limiting component is provided in the connecting block (10), and the connecting block (10) is connected to the slide groove (8) through the limiting component, the other end of the connecting block (10) is fixedly connected to a protective plate (11), and the protective plate (11) is located on one side of the weight block (7), a notch (12) is provided on the protective plate (11), and the traction rope (6) is located in the notch (12).

2. A lower limb traction and fixation device for a knee joint according to claim 1, characterized in that: The limiting assembly comprises a cavity (13), a square groove (15), a spring (14) and a clamping block (16); the cavity (13) is arranged in the connecting block (10); the square groove (15) is arranged on the connecting block (10), and the square groove (15) is communicated with the cavity (13); the spring (14) is fixedly installed in the cavity (13); the clamping block (16) is fixedly connected to the other end of the spring (14), and the clamping block (16) passes through the interior of the cavity (13) through the square groove (15).

3. The lower limb traction and fixation device for the knee joint according to claim 1, characterized in that: The interior of the card slot (9) is configured to be V-shaped, the top end of the card block (16) is configured to be V-shaped, and the card block (16) is engaged in the card slot (9).

4. The lower limb traction and fixation device for the knee joint according to claim 1, characterized in that: A storage box (17) is fixedly installed on the top of the bracket (4), a micro motor (18) is fixedly installed in the storage box (17), an output end of the micro motor (18) is fixedly connected to a screw rod (19), a threaded ring (20) is threadedly connected to the screw rod (19), an extension rod (21) is fixedly connected to the threaded ring (20), a movable groove (22) is provided on the storage box (17), and the extension rod (21) passes through the interior of the movable groove (22) and is slidably connected to the movable groove (22), and the pulley (5) is fixedly installed on the other end of the extension rod (21).

5. The lower limb traction and fixation device for the knee joint according to claim 4, characterized in that: A power supply block (23) is provided in the storage box (17), and the power supply block (23) is connected to the circuit of the micro motor (18).

6. The lower limb traction and fixation device for the knee joint according to claim 1, characterized in that: A fixing belt (24) is fixedly connected to the restraining belt (1), and the fixing belt (24) is made of elastic fabric.

7. The lower limb traction and fixation device for the knee joint according to claim 1, characterized in that: The top end of the frame (2) is fixedly connected with an arc-shaped hanging ring (25).

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