Knee joint traction angle adjusting mechanism

Abstract

The utility model discloses a knee joint traction angle adjusting mechanism which comprises an upper fixing assembly, a lower fixing assembly, a fixing main shaft and a knee joint traction assembly, the upper fixing assembly can be arranged on the thigh of a patient in a sleeved mode, the lower fixing assembly can be arranged on the shank of the patient in a sleeved mode, the upper end of the fixing main shaft is detachably connected with the upper fixing assembly, and the lower end of the fixing main shaft is detachably connected with the knee joint traction assembly. The lower end of the fixing main shaft is detachably connected with the lower fixing assembly, the knee joint traction assembly is arranged in the middle of the fixing main shaft, and a supporting point is provided for the fixing main shaft through the upper fixing assembly and the lower fixing assembly, so that the knee joint traction assembly can be fixedly installed on the fixing main shaft. Radial thrust is provided for the knee joint through the knee joint traction assembly, and the correction effect is achieved. The knee joint traction angle adjusting mechanism provided by the utility model has the effect of providing radial thrust for the knee joint of a patient so as to correct the eversion of the knee joint.

Description

Technical Field

[0001] The utility model relates to the technical field of medical appliances, in particular to a knee joint traction angle adjustment mechanism. Background Art

[0002] A Chinese invention patent named "Knee joint unloading bracket" with publication number: CN16869718A records that it includes a thigh support plate, a knee joint correction part and a calf support plate. The knee joint correction part includes a double hinge joint and an unloading assembly. The thigh support plate and the unloading assembly are connected by a double hinge joint, and the bottom of the unloading assembly is connected to the top of the calf support plate; the unloading assembly includes a box, a hinge arranged in the box, a torsion spring, a ratchet and a pawl, a torsion spring is arranged in the groove in the middle of the hinge, and the hinge and the torsion spring are simultaneously sleeved on the ratchet shaft; the pawl is rotatably fixed to the inner wall of the box, and the pawl is used in conjunction with the ratchet; the lower part of the pawl is connected to a crossbar, and the front end of the crossbar extends to the outside of the box as an adjustment button. Pressing the button controls the rotation of the pawl to adjust the torsion angle of the torsion spring. The present invention applies a valgus torque on the knee joint through the unloading assembly, and applies the load generated by the bracket to the thigh and calf respectively, reducing pain or discomfort, and the size of the valgus torque can be adjusted.

[0003] The above-mentioned existing patent only distributes the load of the knee joint to the thigh and calf, reduces the pressure on the knee joint, and thus achieves the effect of avoiding compression and valgus of the knee joint. However, the patient's knee joint originally has the problem of valgus. If the knee joint is not corrected and guided, the patient's knee joint will continue to be compressed and valgus after the device is removed. Utility Model Content

[0004] In view of the above problems, a knee joint traction angle adjustment mechanism is now provided to solve the problems existing in the prior art.

[0005] The specific technical solutions are as follows:

[0006] A knee joint traction angle adjustment mechanism comprises an upper fixing component, a lower fixing component, a fixing spindle and a knee joint traction component, wherein the upper fixing component can be sleeved on the patient's thigh, the lower fixing component can be sleeved on the patient's calf, the upper end of the fixing spindle is detachably connected to the upper fixing component, the lower end of the fixing spindle is detachably connected to the lower fixing component, the knee joint traction component is arranged in the middle of the fixing spindle, and the traction ends of the knee joint traction component are just located on both sides of the patient's knee joint to apply traction correction force to both sides of the knee joint.

[0007] The above-mentioned knee joint traction angle adjustment mechanism also has the following characteristics: the upper fixing component includes an upper strap, the upper strap is provided with Velcro, and the upper strap is detachably connected to the fixed main shaft.

[0008] The beneficial effect of the above solution is that after the upper strap is wrapped around the patient's thigh, it can be fixed using the Velcro on it.

[0009] The above-mentioned knee joint traction angle adjustment mechanism also has the following characteristics: the lower fixing component includes a lower strap, the lower strap is provided with Velcro, and the lower strap is detachably connected to the fixed main shaft.

[0010] The beneficial effect of the above solution is that after the lower strap is wrapped around the patient's calf, it can be fixed using the Velcro on it.

[0011] The above-mentioned knee joint traction angle adjustment mechanism also has the following characteristics: the knee joint traction assembly includes a fixed arm, a left pushing portion and a right pushing portion, one end of the fixed arm is movably connected to the fixed main shaft, a slide groove is provided on the fixed arm, the left pushing portion and the right pushing portion are both movably arranged in the slide groove, and the left pushing portion and the right pushing portion can both slide along the slide groove.

[0012] The beneficial effects of the above scheme are as follows: the fixed arm is located at the back of the patient's knee bend, at which time the left pushing part and the right pushing part are respectively located twice to the left and right of the patient's knee joint, and the distance between the left pushing part and the right pushing part is adjusted, and the two are used to provide radial thrust to different parts of the patient's knee joint to correct the knee valgus.

[0013] The above-mentioned knee joint traction angle adjustment mechanism also has the following characteristics: the left pushing part includes a first T-shaped slider, a first pushing block and a first locking bolt; the first T-shaped slider is arranged in the slide groove; one end of the first T-shaped slider extends out of the slide groove and is connected to the first pushing block; threaded holes are provided in the first pushing block and the first T-shaped slider; the first locking bolt can be screwed into the threaded hole; when the first locking bolt is completely screwed into the threaded hole, the first locking bolt is pressed against the bottom wall of the slide groove.

[0014] The beneficial effect of the above scheme is that the first T-shaped sliding block can slide along the sliding groove to adjust the position of the first push block. When the position is adjusted to the right position, the first locking bolt can be tightened to fix it.

[0015] The above-mentioned knee joint traction angle adjustment mechanism also has the following characteristics: the right pushing part includes a second T-shaped slider, two second pushing blocks, a connecting shaft and a second locking bolt; the second T-shaped slider is arranged in the sliding groove; one end of the second T-shaped slider extends out of the sliding groove and is connected to the middle part of the connecting shaft; the two second pushing blocks are respectively arranged at both ends of the connecting shaft; bolt holes are provided in the connecting shaft and the second T-shaped slider; the second locking bolt can be screwed into the bolt hole; when the second locking bolt is fully screwed in, the second locking bolt is pressed against the bottom wall of the sliding groove.

[0016] The beneficial effect of the above scheme is that the second T-shaped slider slides along the slide groove to adjust the position of the second push block. When adjusted to the right position, the second locking bolt is tightened to fix it, thereby applying radial thrust to the patient's knee joint to correct the knee joint.

[0017] The above-mentioned knee joint traction angle adjustment mechanism also has the following characteristics: the knee joint traction component also includes a wrapping pad layer, the wrapping pad layer is arranged in the middle of the fixed arm, and the wrapping pad layer can surround and wrap around the knee joint.

[0018] The beneficial effect of the above solution is that the wrapping cushion layer can prevent the first pushing block and the second pushing block from directly squeezing the skin at the knee joint.

[0019] In summary, the beneficial effects of this scheme are:

[0020] In the knee joint traction angle adjustment mechanism provided by the utility model, the upper fixing component and the lower fixing component provide a support point for the fixed main shaft, so that the knee joint traction component can be fixedly installed on the fixed main shaft, and the knee joint traction component is used to provide radial thrust to the knee joint to achieve the correction effect. The knee joint traction angle adjustment mechanism provided by the utility model has the effect of providing radial thrust to the patient's knee joint to correct the valgus of the knee joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front view structural schematic diagram of the knee joint traction angle adjustment mechanism of the utility model in use state.

[0022] Description of the drawings: 1. Upper fixing assembly; 2. Fixed main shaft; 3. Lower fixing assembly; 4. Fixed arm; 5. Slide groove; 6. First push block; 7. First locking bolt; 8. Connecting shaft; 9. Second push block; 10. Second locking bolt. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solution of the utility model in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0025] The present invention will be further described below in conjunction with specific embodiments, but this is not intended to limit the present invention.

[0026] Figure 1FIG. 1 is a front view structural diagram of the knee joint traction angle adjustment mechanism of the utility model in use state, as shown in FIG. Figure 1 As shown, the knee joint traction angle adjustment mechanism provided in this embodiment includes an upper fixing component 1, a lower fixing component 3, a fixing spindle 2 and a knee joint traction component. The upper fixing component 1 can be sleeved on the patient's thigh, the lower fixing component 3 can be sleeved on the patient's calf, the upper end of the fixing spindle 2 is detachably connected to the upper fixing component 1, the lower end of the fixing spindle 2 is detachably connected to the lower fixing component 3, the knee joint traction component is arranged in the middle of the fixing spindle 2, and the traction ends of the knee joint traction component are just on both sides of the patient's knee joint to apply traction correction force to both sides of the knee joint.

[0027] In the above embodiment, the upper fixing assembly 1 includes an upper strap, on which Velcro is provided, and the upper strap is detachably connected to the fixing main shaft 2.

[0028] In the above embodiment, the lower fixing assembly 3 includes a lower strap, on which Velcro is provided, and the lower strap is detachably connected to the fixing main shaft 2 .

[0029] In the above embodiment, the knee joint traction assembly includes a fixed arm 4, a left pushing portion and a right pushing portion. One end of the fixed arm 4 is movably connected to the fixed main shaft 2. A slide groove 5 is provided on the fixed arm 4. The left pushing portion and the right pushing portion are both movably arranged in the slide groove 5, and the left pushing portion and the right pushing portion can both slide along the slide groove 5.

[0030] It should be noted that the fixed arm 4 is detachably connected to the fixed spindle 2 .

[0031] It should also be noted that the left pushing and abutting portion and the right pushing and abutting portion are only used for marking the difference, and do not mean that the left pushing and abutting portion must be on the left side and the right pushing and abutting portion must be on the right side.

[0032] In the above embodiment, the left pushing portion includes a first T-shaped slider, a first pushing block 6 and a first locking bolt 7. The first T-shaped slider is arranged in the slide groove 5. One end of the first T-shaped slider extends out of the slide groove 5 and is connected to the first pushing block 6. Threaded holes are provided in the first pushing block 6 and the first T-shaped slider. The first locking bolt 7 can be screwed into the threaded hole. When the first locking bolt 7 is completely screwed into the threaded hole, the first locking bolt 7 is pressed against the bottom wall of the slide groove 5.

[0033] In the above embodiment, the right pushing portion includes a second T-shaped slider, two second pushing blocks 9, a connecting shaft 8 and a second locking bolt 10. The second T-shaped slider is arranged in the slide groove 5. One end of the second T-shaped slider extends out of the slide groove 5 and is connected to the middle part of the connecting shaft 8. The two second pushing blocks 9 are respectively arranged at both ends of the connecting shaft 8. Bolt holes are provided in the connecting shaft 8 and the second T-shaped slider. The second locking bolt 10 can be screwed into the bolt hole. When the second locking bolt 10 is fully screwed in, the second locking bolt 10 is pressed against the bottom wall of the slide groove 5.

[0034] It should be noted that both the first pushing block 6 and the second pushing block 9 are made of rubber, and the ends facing the patient's knee joint are configured to be in an arc shape.

[0035] In the above embodiment, the knee joint traction assembly further includes a wrapping pad layer, which is arranged in the middle of the fixed arm 4 and can surround and wrap around the knee joint.

[0036] Working principle: use the upper binding strap and the lower binding strap to install the fixed main shaft 2 on the outside of the patient's leg, and install the fixed arm 4 on the fixed main shaft 2, so that the fixed arm 4 is just at the patient's knee bend. At this time, the left pushing part and the right pushing part are respectively on both sides of the patient's knee joint, drive the first T-shaped slider and the second T-shaped slider, when the thrust applied by the first pushing block 6 and the second pushing block 9 to the knee joint reaches the preset value, tighten the first locking bolt 7 and the second locking bolt 10.

[0037] The above are only preferred embodiments of the present invention, and do not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the contents of the present invention specification should be included in the protection scope of the present invention.

Claims

1. A knee joint traction angle adjustment mechanism, characterized in that: The invention comprises an upper fixing component (1), a lower fixing component (3), a fixing spindle (2) and a knee joint traction component. The upper fixing component (1) can be sleeved on the patient's thigh, the lower fixing component (3) can be sleeved on the patient's calf, the upper end of the fixing spindle (2) is detachably connected to the upper fixing component (1), the lower end of the fixing spindle (2) is detachably connected to the lower fixing component (3), the knee joint traction component is arranged in the middle of the fixing spindle (2), and the traction ends of the knee joint traction component are just located on both sides of the patient's knee joint so as to apply traction correction force to both sides of the knee joint.

2. A knee joint traction angle adjustment mechanism according to claim 1, characterized in that: The upper fixing assembly (1) comprises an upper strap, on which a Velcro strip is provided, and the upper strap is detachably connected to the fixing main shaft (2).

3. A knee joint traction angle adjustment mechanism according to claim 2, characterized in that: The lower fixing assembly (3) comprises a lower strap, on which a Velcro strip is provided, and the lower strap is detachably connected to the fixing main shaft (2).

4. A knee joint traction angle adjustment mechanism according to claim 3, characterized in that: The knee joint traction assembly comprises a fixed arm (4), a left pushing portion and a right pushing portion. One end of the fixed arm (4) is movably connected to the fixed main shaft (2). A slide groove (5) is provided on the fixed arm (4). Both the left pushing portion and the right pushing portion are movably arranged in the slide groove (5), and both the left pushing portion and the right pushing portion can slide along the slide groove (5).

5. A knee joint traction angle adjustment mechanism according to claim 4, characterized in that: The left pushing portion comprises a first T-shaped slider, a first pushing block (6) and a first locking bolt (7); the first T-shaped slider is arranged in the slide groove (5); one end of the first T-shaped slider extends out of the slide groove (5) and is connected to the first pushing block (6); threaded holes are provided in the first pushing block (6) and the first T-shaped slider; the first locking bolt (7) can be screwed into the threaded hole; when the first locking bolt (7) is completely screwed into the threaded hole, the first locking bolt (7) is pressed against the bottom wall of the slide groove (5).

6. A knee joint traction angle adjustment mechanism according to claim 4, characterized in that: The right pushing portion comprises a second T-shaped slider, two second pushing blocks (9), a connecting shaft (8) and a second locking bolt (10). The second T-shaped slider is arranged in the slide groove (5). One end of the second T-shaped slider extends out of the slide groove (5) and is connected to the middle part of the connecting shaft (8). The two second pushing blocks (9) are respectively arranged at both ends of the connecting shaft (8). Bolt holes are provided in the connecting shaft (8) and the second T-shaped slider. The second locking bolt (10) can be screwed into the bolt hole. When the second locking bolt (10) is fully screwed in, the second locking bolt (10) is pressed against the bottom wall of the slide groove (5).

7. A knee joint traction angle adjustment mechanism according to claim 4, characterized in that: The knee joint traction assembly also includes a wrapping pad layer, which is arranged in the middle of the fixed arm (4) and can surround and wrap around the knee joint.

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