Knee joint postoperative training device

Abstract

The utility model discloses a knee joint postoperative training device which comprises an operation assembly and a fixing assembly and is characterized in that the operation assembly comprises a bottom plate, a sliding rod arranged on the upper side of one end of the bottom plate, a sliding block and a limiting block which are connected with the surface of the sliding rod in a sliding mode, and angle measuring discs symmetrically arranged on the two sides of the top of the sliding block; the supporting seats are mounted at the top of the bottom plate, the adjusting screw rods are rotationally connected with the interiors of the supporting seats, the screw sleeves are arranged at the side ends of the sliding blocks and are in threaded connection with the adjusting screw rods, and the adjusting mechanisms are arranged at the tail ends of the screw rods; the fixing assembly comprises a thigh supporting plate rotationally connected with the upper side of the other end of the bottom plate, a shank supporting plate rotationally connected with the thigh supporting plate and the angle measuring disc, and a plurality of sets of fixing plates arranged on the two sides of the thigh supporting plate and the two sides of the shank supporting plate. The knee joint bending angle range can be adjusted according to the recovery condition, adjustment can be conducted according to the leg length of a patient, and the legs of the patient can be stably wrapped and fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a knee joint post-operative training device. Background Art

[0002] Patients with proximal knee fractures or knee ligament injuries need to be fixed with instruments after conservative treatment or surgery to limit the movement of the joint so that the bones or soft tissues can recover normally. After the bones or soft tissues recover, the fixation device is removed, and the patient will have varying degrees of knee dysfunction, which will affect the patient's walking and knee bending and squatting functions. Rehabilitation training devices are usually used for knee rehabilitation training. Existing knee rehabilitation training devices cannot adjust the knee flexion angle, which is not convenient for patients to conduct gradual rehabilitation training, and cannot be adjusted according to the length of the patient's legs, which is not convenient for the use of rehabilitation devices; when fixed, they are mostly tied with straps, which cannot prevent the calves and thighs in front and behind the joints from tipping left and right during bending.

[0003] Therefore, in order to solve the above technical problems, the utility model provides a postoperative training device for knee joint. Utility Model Content

[0004] The utility model aims to provide a postoperative training device for knee joints, which can adjust the range of knee joint flexion angles according to the recovery situation, can be adjusted according to the length of the patient's legs, and can stably cover and fix the patient's legs to avoid tilting left and right.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a knee joint postoperative training device, comprising an operating component and a fixing component, characterized in that: the operating component comprises a base plate, a sliding rod arranged on the upper side of one end of the base plate, a sliding block and a limit block slidably connected to the surface of the sliding rod, an angle measuring disk symmetrically arranged on both sides of the top of the sliding block, a plurality of support seats fixedly installed on the top of the base plate, an adjusting screw rotatably connected to the inside of the support seat, a screw sleeve arranged at the side end of the sliding block and threadedly connected to the adjusting screw, and an adjusting mechanism arranged at the end of the adjusting screw; the fixing component comprises a thigh support plate rotatably connected to the upper side of the other end of the base plate, one end rotatably connected to the end of the thigh support plate, and the other end rotatably connected to the calf support plate inside the angle measuring disk, a measuring rod with one end fixedly connected to the calf support plate and the other end rotatably connected to the center of the angle measuring disk, a plurality of groups of fixing plates symmetrically arranged on both sides of the thigh support plate and the calf support plate, and a restraining belt arranged at the ends of the two symmetrical fixing plates and connected to each other.

[0006] Furthermore, anti-drop blocks are provided at both ends of the slide rod, and slide grooves are provided on both sides of the slide rod; the slider and the limit block are both slidably connected to the inside of the slide groove.

[0007] Furthermore, the limit block includes a moving block slidably connected to the inside of the slide groove, a fixed screw sleeve arranged in the middle of the moving block, a fixed screw threadedly connected to the inside of the fixed screw sleeve, and an adjustment handle and a fixed block respectively installed at the upper and lower ends of the fixed screw.

[0008] Furthermore, the adjustment mechanism includes an adjustment box fixedly installed on the upper end of the base plate, an adjustment handle rotatably connected to the side end of the adjustment box, a first bevel gear fixedly connected to the inner end of the adjustment handle, and a second bevel gear fixedly installed at the end of the adjustment screw; the first bevel gear is meshed and connected to the second bevel gear; the first bevel gear and the second bevel gear are both installed inside the adjustment box; the adjustment screw is rotatably connected to the side wall of the adjustment box.

[0009] Furthermore, the thigh support plate and the calf support plate have the same structure, both including a main board, a telescopic slot arranged in the middle of one end of the main board, a telescopic block slidably connected to the inside of the telescopic slot, a plurality of adjustment holes equidistantly arranged on both sides of the telescopic slot and the telescopic block, and connecting bolts passing through the adjustment holes.

[0010] Furthermore, a plurality of groups of fixing holes are equidistantly arranged at the lower end of the telescopic block of the calf support plate, and the fixing holes are internally connected with the pedal blocks by pins.

[0011] Furthermore, the bottom surface of the measuring rod is coplanar with the bottom surface of the calf support plate; and the surface of the angle measuring disk is provided with an angle scale.

[0012] Furthermore, the fixing plate is rotatably connected to the side walls of the thigh support plate and the calf support plate.

[0013] The beneficial effects of the utility model are:

[0014] The knee joint postoperative training device described in the utility model can adjust the length of the thigh support plate and the calf support plate, so that the device can be suitable for patients with different leg lengths, thereby improving practicality; the bending angle range can be adjusted according to the flexion range of the knee joint by adjusting the position of the limit block on the slide bar, thereby meeting the knee joint flexion training angle requirements of patients in different recovery stages; by providing an adjustment mechanism, a screw sleeve and an adjustment screw, the adjustment mechanism can be manually rotated to assist the patient in performing knee joint flexion training, thereby preventing the patient from applying excessive force on his legs when performing knee joint flexion training independently, thereby causing damage to the patient's knee joint; by providing a fixing plate and a restraining belt, the patient's thigh and calf can be tightly restrained and limited to the thigh support plate and the calf support plate respectively, thereby preventing the thigh and calf from tilting left and right during the knee joint flexion training, thereby causing damage to the knee joint; by providing a plurality of groups of fixing holes, the position of the pedal block can be adjusted; the needs of different people can be met, and at the same time, the device has a simple structure and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

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

[0017] Figure 2 This utility model Figure 1 The enlarged schematic diagram at A in the middle;

[0018] Figure 3 It is a front view of the utility model;

[0019] Figure 4 It is a side view of the utility model;

[0020] Figure 5 It is a top view of the utility model;

[0021] Figure 6 It is a schematic diagram of the internal structure of the regulating mechanism of the utility model;

[0022] Figure 7 It is a structural schematic diagram of the angle measuring disk of the utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Bottom plate; 2. Slide bar; 21. Slider; 22. Limit block; 221. Moving block; 222. Fixed screw sleeve; 223. Fixed screw; 224. Adjustment handle; 225. Fixed block; 23. Angle measuring plate; 24. Screw sleeve; 25. Anti-slip block; 26. Slide groove; 3. Support seat; 4. Adjustment screw; 5. Adjustment mechanism; 51. Adjustment box; 52. Adjustment handle; 53. First bevel gear; 54. Second bevel gear; 6. Thigh support plate; 61. Main board; 62. Telescopic slot; 63. Telescopic block; 64. Adjustment hole; 65. Connecting bolt; 66. Fixing hole; 67. Footrest block; 7. Calf support plate; 71. Measuring rod; 8. Fixed plate; 81. Restraint belt. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in 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.

[0026] Example 1

[0027] See also Figures 1 to 7 As shown, a knee joint postoperative training device includes an operating component and a fixing component, characterized in that: the operating component includes a base plate 1, a sliding rod 2 arranged on the upper side of one end of the base plate 1, a sliding block 21 and a limit block 22 slidably connected to the surface of the sliding rod 2, an angle measuring disk 23 symmetrically arranged on both sides of the top of the sliding block 21, a plurality of support seats 3 fixedly installed on the top of the base plate 1, an adjusting screw 4 rotatably connected to the inside of the supporting seat 3, a screw sleeve 24 arranged at the side end of the sliding block 21 and threadedly connected to the adjusting screw 4, and an adjusting mechanism 5 arranged at the end of the adjusting screw 4; the fixing component includes a thigh supporting plate 6 rotatably connected to the upper side of the other end of the base plate 1, one end rotatably connected to the end of the thigh supporting plate 6, and the other end rotatably connected to the calf supporting plate 7 inside the angle measuring disk 23, a measuring rod 71 with one end fixedly connected to the calf supporting plate 7 and the other end rotatably connected to the center of the angle measuring disk 23, a plurality of groups of fixing plates 8 symmetrically arranged on both sides of the thigh supporting plate 6 and the calf supporting plate 7, and a restraining belt 81 arranged at the ends of the two symmetrical fixing plates 8 and connected to each other.

[0028] Anti-drop blocks 25 are provided at both ends of the slide bar 2, and slide grooves 26 are provided at both sides of the slide bar 2; the slider 21 and the limit block 22 are slidably connected to the inside of the slide grooves 26. The anti-drop blocks 25 can prevent the slider 21 and the limit block 22 from falling off the slide bar 2; the slide grooves 26 can ensure that the slider 21 and the limit block 22 move along the slide bar 2.

[0029] The limit block 22 includes a moving block 221 slidably connected to the inside of the slide slot 26, a fixed screw sleeve 222 arranged in the middle of the moving block 221, a fixed screw 223 threadedly connected to the inside of the fixed screw sleeve 222, and an adjustment handle 224 and a fixed block 225 respectively installed at the upper and lower ends of the fixed screw 223. The moving block 221 can be fastened and fixed to the slide bar 2, so as to adjust the range of motion of the slider 21, and further adjust the bending angle range to meet the patient's knee flexion training angle requirements at different recovery stages;

[0030] The adjustment mechanism 5 includes an adjustment box 51 fixedly mounted on the upper end of the bottom plate 1, an adjustment handle 52 rotatably connected to the side end of the adjustment box 51, a first bevel gear 53 fixedly connected to the inner end of the adjustment handle 52, and a second bevel gear 54 fixedly mounted on the end of the adjustment screw 4; the first bevel gear 53 is meshedly connected to the second bevel gear 54; the first bevel gear 53 and the second bevel gear 54 are both mounted inside the adjustment box 51; the adjustment screw 4 is rotatably connected to the side wall of the adjustment box 51. The adjustment mechanism 5 can be manually rotated to assist the patient in performing knee flexion training, so as to avoid excessive force on the patient's legs during autonomous knee flexion training, thereby causing damage to the patient's knee joint.

[0031] The thigh support plate 6 and the calf support plate 7 have the same structure, and both include a main board 61, a telescopic slot 62 arranged in the middle of one end of the main board 61, a telescopic block 63 slidably connected to the inside of the telescopic slot 62, a plurality of adjustment holes 64 equidistantly arranged on both sides of the telescopic slot 62 and the telescopic block 63, and a connecting bolt 65 penetrating the adjustment hole 64. The length of the thigh support plate 6 and the calf support plate 7 can be adjusted, so that the device can be suitable for patients with different leg lengths, thereby improving practicality.

[0032] The lower end of the telescopic block 63 of the calf support plate 7 is equidistantly provided with a plurality of fixing holes 66, and the fixing holes 66 are internally plugged with footrest blocks 67. The position of the footrest blocks 67 can be adjusted to meet the needs of different people.

[0033] The bottom surface of the measuring rod 71 is coplanar with the bottom surface of the calf support plate 7; the surface of the angle measuring disk 23 is provided with an angle scale, so that the angle measured by the measuring rod 71 is consistent with the rotation angle of the calf support plate 7; the angle scale can intuitively display the flexion angle.

[0034] The fixing plate 8 is rotatably connected to the side walls of the thigh support plate 6 and the calf support plate 7. It can realize the restraint of the legs of different patients with different thicknesses, and the restraint and position of the patient's legs can be limited as much as possible.

[0035] Example 2

[0036] The mutually matched binding belts 81 of the present invention specifically adopt the method of providing mutually matched Velcro on the upper and lower surfaces of the binding belts 81 on both sides.

[0037] The fixing plate 8 of the present invention is fixedly mounted on the top of the main board 61 and the middle of the telescopic block 63 respectively.

[0038] The specific structure of the angle measuring disk 23 of the utility model is the same as that of the protractor.

[0039] When the thigh support plate 6 and the calf support plate 7 of the present invention are placed horizontally, the bottom surface of the measuring rod 71 coincides with the zero scale of the angle measuring disk 23 .

[0040] The size of the connecting bolt 65 of the utility model is adapted to the size of the adjusting hole 64 .

[0041] The limit block 22 of the present invention is arranged on the outside of the slider 21 (close to the thigh support plate 6 ), which can limit the range of motion of the slider 21 .

[0042] Example 3

[0043] Working principle: Before use, the doctor needs to rotate the adjustment handle 52 to adjust the position of the calf support plate 7 on the slide bar 21 according to the training angle range required by the patient's current recovery stage. When the measuring rod 71 rotates to the maximum angle of the training angle range required by the current recovery stage on the angle measuring disk 23, the doctor stops rotating the adjustment handle 52, and then moves the limit block 22 to the stop position of the slide bar 21 at this time, and fixes the limit block 22 to limit the angle range of the current recovery stage to avoid the bending angle being too large or too small to affect the patient's knee joint training; complete the angle range setting before use; when in use, the patient lies flat or half-lying on the bed, and places the device parallel to the patient's required To restore one side of the leg, adjust the length of the thigh support plate 6 and the calf support plate 7 according to the length of the patient's leg, so that the rotationally connected position of the thigh support plate 6 and the calf support plate 7 is aligned with the patient's knee joint position, and insert the pedal block 67 into the fixing hole 66 opposite the sole of the patient's foot; after the setting is completed, move the device parallel to the bottom of the patient's leg that needs to be restored, use the fixing plate 8 and the restraining belt 81 to fasten the patient's leg that needs to be restored to the thigh support plate 6 and the calf support plate 7 (at this time, the patient's knee joint is facing the rotationally connected position of the thigh support plate 6 and the calf support plate 7), and at this time, the patient or medical staff turns the adjustment handle 52 of the adjustment mechanism 5 to perform knee flexion training on the patient.

Claims

1. A postoperative training device for knee joint, comprising an operating component and a fixing component, characterized in that: The operating component includes a base plate, a sliding rod arranged on the upper side of one end of the base plate, a sliding block and a limit block slidably connected to the surface of the sliding rod, an angle measuring disk symmetrically arranged on both sides of the top of the sliding rod, a plurality of support seats fixedly installed on the top of the base plate, an adjusting screw rotatably connected to the inside of the support seat, a screw sleeve arranged at the side end of the sliding block and threadedly connected to the adjusting screw, and an adjusting mechanism arranged at the end of the screw; the fixing component includes a thigh support plate rotatably connected to the upper side of the other end of the base plate, one end rotatably connected to the end of the thigh support plate and the other end rotatably connected to the calf support plate inside the angle measuring disk, a measuring rod with one end fixedly connected to the calf support plate and the other end rotatably connected to the center of the angle measuring disk, a plurality of groups of fixing plates symmetrically arranged on both sides of the thigh support plate and the calf support plate, and a restraining belt arranged at the ends of the two symmetrical fixing plates and connected to each other.

2. A postoperative knee joint training device according to claim 1, characterized in that: Anti-drop blocks are arranged at both ends of the slide bar, and slide grooves are arranged at both sides of the slide bar; the slider and the limit block are both slidably connected to the inside of the slide groove.

3. A postoperative knee joint training device according to claim 1, characterized in that: The limit block includes a moving block slidably connected to the inside of the slide groove, a fixed screw sleeve arranged in the middle of the moving block, a fixed screw threadedly connected to the inside of the fixed screw sleeve, and an adjusting handle and a fixed block respectively installed at the upper and lower ends of the fixed screw.

4. A postoperative knee joint training device according to claim 1, characterized in that: The adjustment mechanism includes an adjustment box fixedly mounted on the upper end of the bottom plate, an adjustment handle rotatably connected to the side end of the adjustment box, a first bevel gear fixedly connected to the inner end of the adjustment handle, and a second bevel gear fixedly mounted on the end of the screw rod; the first bevel gear is meshedly connected to the second bevel gear; the first bevel gear and the second bevel gear are both mounted inside the adjustment box; The screw rod is rotatably connected to the side wall of the adjustment box.

5. The postoperative training device for knee joint according to claim 1, characterized in that: The thigh support plate and the calf support plate have the same structure, both comprising a main board, a telescopic slot arranged in the middle of one end of the main board, a telescopic block slidably connected to the inside of the telescopic slot, a plurality of adjustment holes equidistantly arranged on both sides of the telescopic slot and the telescopic block, and connecting bolts passing through the adjustment holes.

6. A postoperative knee joint training device according to claim 5, characterized in that: The lower end of the telescopic block of the calf support plate is equidistantly provided with a plurality of fixing holes, and the fixing holes are internally connected with pedal blocks by latches.

7. A postoperative knee joint training device according to claim 1, characterized in that: The bottom surface of the measuring rod is coplanar with the bottom surface of the calf support plate; and the surface of the angle measuring disk is provided with angle scales.

8. The postoperative training device for knee joint according to claim 1, characterized in that: The fixing plate is rotatably connected to the side walls of the thigh supporting plate and the calf supporting plate.

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