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CN-121987459-A - Prevent brace and cooperation trainer that knee is stretched excessively

CN121987459ACN 121987459 ACN121987459 ACN 121987459ACN-121987459-A

Abstract

The invention relates to the technical field of rehabilitation training devices, in particular to a brace for preventing knee hyperextension and a matched training device, aiming at the problems of easy knee hyperextension and single equipment function in rehabilitation training of hemiplegic patients, the invention provides the brace which comprises a bottom frame and a thigh fixing frame, realizes rotary connection through a connecting part, prevents the knee hyperextension by a limiting part, and comprises a pedal, a supporting tube, a butt joint frame and a resistance part, the invention provides reverse resistance training leg muscles, the connecting part and the limiting part are adjustable, the requirements of patients with different leg lengths are met, the supporting part assists the patients to sit, stand and repeatedly stand for training, the training safety and the effectiveness are improved, the invention provides body adjusting support and muscle training during initial training of hemiplegic patients, prevents the overstretching of knees, stabilizes and limits the opening and closing angles of big and small legs during later walking training, meets the requirements of different stages, and assists the rehabilitation of patients.

Inventors

  • JIANG YONG
  • ZHAO XU
  • CHEN PENGYU
  • JIANG HAOTIAN
  • XU YING
  • XU GUOJIE
  • MA SU
  • XU LEI
  • WANG MIN

Assignees

  • 蚌埠医科大学第一附属医院(蚌埠医科大学附属肿瘤医院)

Dates

Publication Date
20260508
Application Date
20260227

Claims (10)

  1. 1. A brace for preventing knee extension, comprising: the leg fixing device comprises an underframe (1) and a thigh fixing frame (11), wherein connecting bolts (23) are fixedly connected to the bottoms of two sides of the underframe (1), and connecting nuts (24) are connected to the connecting bolts (23) in a threaded manner; The inner side of the underframe (1) is fixedly connected with a shank fixing frame (2), the shank fixing frame (2) is used for being bound on the shank part of a patient, and the thigh fixing frame (11) is used for being bound on the thigh part of the patient; One side of the shank fixing frame (2) is fixedly connected with a lower binding belt (3) and a lower contraction frame (4) respectively, and the lower binding belt (3) penetrates through the lower contraction frame (4) and is detachably connected with the magic mother plaster through the magic son plaster; An upper binding belt (20) and an upper contraction frame (21) are fixedly connected to one side of the thigh fixing frame (11) respectively, and the upper binding belt (20) penetrates through the upper contraction frame (21) and is detachably connected with the magic mother plaster through the magic son plaster; two connecting parts are symmetrically and fixedly connected to the top of the underframe (1), and are connected with one side of the bottom of the thigh fixing frame (11) to realize the rotary connection of the underframe (1) and the thigh fixing frame (11); And the two limiting parts are respectively arranged on the two connecting parts and are used for limiting the straightening angle between the lower leg and the thigh when the patient stands and trains, so that the problem of overstretching of the knee of the patient is prevented.
  2. 2. The knee extension prevention brace according to claim 1, wherein the connecting component comprises a first connecting cover (5) fixedly connected to the top of the underframe (1), a first connecting plate (6) is slidably connected to the first connecting cover (5), a hinge shaft (7) is fixedly connected to the first connecting plate (6) in a penetrating manner, and the limiting component is mounted at one end of the hinge shaft (7); The hinge shaft (7) is rotationally connected with a second connecting plate (8), a second connecting cover (10) is sleeved on the second connecting plate (8) in a sliding way, and the second connecting cover (10) is fixedly connected to one side of the bottom of the thigh fixing frame (11); a limiting groove (9) is formed in the second connecting plate (8), and one side of the limiting component extends into the corresponding limiting groove (9) and is used for limiting the rotation angle of the second connecting plate (8); The first connecting cover (5) is hinged with the second connecting plate (8) through the hinge shafts (7), so that the underframe (1) and the thigh fixing frame (11) can rotate by taking the two hinge shafts (7) as the center, and the leg rotating action during leg bending and stretching training of a patient is adapted, so that an auxiliary supporting effect is achieved on the legs of the patient.
  3. 3. The knee extension prevention brace according to claim 2, wherein a first inserting rod (15) is connected to the inner wall of one side of the first connecting cover (5) in a penetrating and sliding manner, a plurality of first positioning holes are formed in the first connecting cover (5) at equal intervals, and the first inserting rod (15) is detachably inserted into the plurality of first positioning holes; The first inserting rod (15) is sleeved with a first stretching spring (16) positioned at the outer side of the first connecting cover (5), and two ends of the first stretching spring (16) are fixedly connected with one side of the first connecting cover (5) and one end of the first inserting rod (15) through draw hooks respectively; A second inserting rod (18) penetrates through the inner wall of one side of the second connecting cover (10) in a sliding manner, a plurality of second positioning holes are formed in the second connecting plate (8) at equal intervals, and the second inserting rod (18) is detachably inserted into the plurality of second positioning holes; The second inserting rod (18) is sleeved with a second stretching spring (19) positioned at the outer side of the second connecting cover (10), and two ends of the second stretching spring (19) are fixedly connected with one side of the second connecting cover (10) and one end of the second inserting rod (18) through draw hooks respectively; Wherein, through the reset action pulling first inserted bar (15) of first extension spring (16) insert corresponding first locating hole, realize the location of first connecting cover (5) and first connecting plate (6), the reset action pulling second inserted bar (18) through second extension spring (19) inserts corresponding second locating hole, realize the location of second connecting plate (8) and second connecting cover (10), and then the position of stable fixed chassis (1) and thigh mount (11), the user demand of different leg length patients of adaptation.
  4. 4. The knee extension prevention brace according to claim 2, wherein the limiting component comprises a fastening bolt (12) fixedly connected to one end of the hinge shaft (7), an adjusting frame (13) is sleeved on the fastening bolt (12), an anti-slip pad (17) is fixedly connected to one side of the first connecting plate (6), and the anti-slip pad (17) is used for limiting the adjusting frame (13); A limiting frame (14) is fixedly connected to the adjusting frame (13), and one side of the limiting frame (14) extends into the corresponding limiting groove (9) and is used for limiting the second connecting plate (8); The fastening bolt (12) is in threaded connection with a fastening nut (22), and the fastening nut (22) is used for pressing and fixing the adjusting frame (13); Wherein, drive spacing (14) arc motion through rotating alignment jig (13), adjust the position of spacing (14) in spacing groove (9), when second connecting plate (8) rotate to spacing groove (9) inner wall and spacing (14) contact along with thigh mount (11), stop second connecting plate (8) and continue to rotate, realize spacing of big, shank angle of opening and shutting, avoid knee to stretch excessively, fix alignment jig (13) through the cooperation centre gripping of fastening nut (22) with slipmat (17), ensure spacing (14) stable in position.
  5. 5. A co-operating training device for a brace for preventing knee extension according to any one of claims 1 to 4, comprising two pedals (28) for supporting the left and right feet of a patient, respectively; Two support pipes (29) are symmetrically and fixedly connected to the top of the pedal (28), adjusting rods (30) are slidably connected to the support pipes (29), and the top ends of the two adjusting rods (30) extend to the positions above the corresponding support pipes (29) respectively and are fixedly connected with the same butt joint frame (31); The underframe (1) is clamped at the top of a corresponding butt joint frame (31), two connecting lug plates (32) are symmetrically and fixedly connected to the butt joint frame (31), and the connecting bolts (23) penetrate through the corresponding connecting lug plates (32) and are fixedly connected with the connecting lug plates (32) through connecting nuts (24); And one side of each supporting tube (29) is provided with a resistance part which is used for providing reverse resistance to thighs of a patient during standing training of the patient, providing load for leg muscle training and assisting the recovery of leg strength of the patient.
  6. 6. The coordination training device according to claim 5, wherein the resistance component comprises a support frame (36) fixedly connected to one side of two support pipes (29), a moving plate (37) is connected to the support frame (36) in a penetrating and sliding manner, a mounting rod (38) is fixedly connected to one side of the moving plate (37), and one side of the mounting rod (38) is fixedly connected to one side of a butt joint frame (31); A limiting ring (39) is fixedly connected to the top of the moving plate (37), a moving frame (40) is connected in a sliding manner to the limiting ring (39), and a stress plate (41) is fixedly connected to one side, close to the thigh fixing frame (11), of the moving frame (40); an elastic component is arranged in the movable frame (40), and one side of the elastic component is fixedly connected with one side of the limiting ring (39); Wherein, drive thigh mount (11) to vertical direction rotation when patient stands the training, thigh mount (11) and atress board (41) contact and promote its removal, and elastic component's elasticity provides reverse resistance for atress board (41) through removing frame (40), and then exerts the resistance to patient's thigh, realizes the training of leg muscle.
  7. 7. The cooperation training device according to claim 6, wherein the elastic component comprises a first connecting frame (44) fixedly connected to one side of the limiting ring (39) and a second connecting frame (45) fixedly connected to the inner wall of one side of the movable frame (40), and further comprises a first inserting plate (46) and a second inserting plate (47), wherein the first inserting plate (46) is detachably inserted into the first connecting frame (44), and the second inserting plate (47) is detachably inserted into the second connecting frame (45); The telescopic pipe (48) is fixedly connected between the first inserting plate (46) and the second inserting plate (47), a fourth stretching spring (49) is sleeved on the telescopic pipe (48), and two ends of the fourth stretching spring (49) are fixedly connected with one side, close to the first inserting plate (46) and the second inserting plate (47), of the telescopic pipe through draw hooks respectively; the first inserting plate (46), the second inserting plate (47), the telescopic pipe (48) and the fourth stretching spring (49) form an independent unit which can be disassembled and assembled, a plurality of groups of units with different elastic force specifications are arranged for patients to select, the fourth stretching spring (49) is stretched by the second inserting plate (47) when the movable frame (40) moves, the elastic force of the fourth stretching spring (49) is utilized to provide reverse resistance, and the resistance requirements of different training stages of the patients are adapted.
  8. 8. The cooperation training device according to claim 5, wherein a third inserting rod (42) is connected to the inner wall of the top of one side of the supporting tube (29) in a penetrating and sliding manner, a plurality of positioning grooves are formed in one side of the adjusting rod (30) at equal intervals, and the third inserting rod (42) is detachably clamped with the plurality of positioning grooves; A third extension spring (43) positioned outside the support tube (29) is sleeved on the third inserted link (42), and two ends of the third extension spring (43) are fixedly connected with one end of the third inserted link (42) and the top of one side of the support tube (29) through draw hooks respectively; When the height of the butt-joint frame (31) is adjusted according to the length of the patient's lower leg, the adjusting rod (30) is pulled to slide in the supporting tube (29), after the adjustment is completed, the third extension spring (43) resets to drive the third inserting rod (42) to be inserted into the corresponding positioning groove, positioning braking of the adjusting rod (30) is achieved, and then the height of the butt-joint frame (31) is stabilized.
  9. 9. The cooperative training device as claimed in claim 5, further comprising a base (25), the two pedals (28) being symmetrically arranged on top of the base (25); two sliding grooves are symmetrically formed in the top of the base (25), sliding rails (27) are fixedly connected to the inner walls of two sides of each sliding groove, sliding blocks are connected to the sliding rails (27) in a sliding mode, and the tops of the two sliding blocks are fixedly connected with the bottom of the pedal (28); The top of the base (25) is fixedly connected with a hand rest (26), the top of the base (25) is symmetrically fixedly connected with two limiting rods (33), the limiting rods (33) are sleeved with sliding sleeves (34) in a sliding manner, and one side of each sliding sleeve (34) is fixedly connected with one side of a pedal (28); A positioning bolt (35) is connected to the inner wall of the top of the sliding sleeve (34) through threads, and the positioning bolt (35) and the limiting rod (33) are clamped and fixed; A supporting component is arranged on one side of the base (25) and is used for supporting the body of a patient in a sitting and standing manner; The pedal (28) slides along the sliding groove through the matching of the sliding block and the sliding rail (27), after being adjusted to the position matched with the leg part of the patient, the pedal is fixed through the locating bolt (35) for clamping the limiting rod (33), the hand rest (26) supports the hands of the patient, the body is stable when the patient stands and trains, and the training safety is improved.
  10. 10. The coordination training device according to claim 9, wherein the supporting component comprises a mounting frame (50) fixedly connected to one side of the base (25), two moving rods (51) are symmetrically and slidingly connected to the mounting frame (50), and the top ends of the two moving rods (51) are fixedly connected with the same seat plate (52) for a patient to sit on; The bottom ends of the two movable rods (51) are fixedly connected with the same transmission frame (53), and the transmission frame (53) penetrates through the mounting frame (50) and is in sliding connection with the mounting frame (50); the top of the transmission frame (53) is symmetrically and slidingly connected with two driving frames (54), a rotating rod (55) is rotatably connected to the driving frames (54), and the top end of the rotating rod (55) is rotatably connected with the mounting frame (50) through a pin shaft; The top of the transmission frame (53) is rotationally connected with a bidirectional screw (56), one sides of the two driving frames (54) close to each other are fixedly connected with transmission nuts (57), two sections of thread grooves with opposite thread directions are symmetrically formed in the bidirectional screw (56), and the bidirectional screw (56) penetrates through the two driving frames (54) and the two transmission nuts (57) and is respectively in threaded connection with the two transmission nuts (57) through the two sections of thread grooves; When the bidirectional screw rod (56) is rotated, the two driving frames (54) are driven to be close to or far away from each other through the threaded transmission of the two driving nuts (57), the rotating rod (55) is driven to rotate, the driving frames (53) and the moving rod (51) are pulled to move up and down, the height of the seat plate (52) is adjusted, the leg strength condition of a patient is adapted, and the patient is assisted to complete repeated standing training.

Description

Prevent brace and cooperation trainer that knee is stretched excessively Technical Field The invention relates to the technical field of rehabilitation training devices, in particular to a knee extension preventing brace and a matched training device. Background Hemiplegia is a common sequela of nervous system diseases, is usually caused by cerebral apoplexy, cerebral trauma and other reasons, and causes impaired movement function of limbs on one side of a patient, so that the daily life self-care ability and life quality of the patient are seriously affected, and in the rehabilitation process of the hemiplegia patient, standing training and leg bending and stretching training are vital links; Standing training is helpful for recovering the balance capacity of a patient, enhancing the muscle strength of lower limbs, improving the stability and coordination of the body, laying a foundation for subsequent walking training, and mainly aiming at knee joint function recovery, the leg bending and stretching training can increase the movement range of knee joints, prevent joint stiffness and muscle atrophy and promote the reconstruction of the lower limb movement function through regularly bending and stretching the leg; However, when a hemiplegic patient performs standing training and leg bending and stretching training, a plurality of difficulties are often faced, the patient is difficult to keep the balance of the body in the standing process due to weakening of muscle strength and reduced control capability of the affected side limbs, the condition of overstretching of the knee (namely, excessive buckling of the knee joint) is easy to occur, the overstretching of the knee not only can increase the pressure of the knee joint and cause pain and damage of the joint, but also can influence the training effect to prevent the recovery of the movement function of the lower limb of the patient, in addition, the existing rehabilitation training equipment has single functions, the problems that the patient cannot simultaneously perform adjustment and support functions on the body in the initial stage of the rehabilitation training and perform training in the training process, the proper resistance load is inconvenient to increase, the overstretching of the knee is prevented in the later stage of the leg bending and stretching training process in the independent walking process can be performed; aiming at the problems, the invention provides a brace for preventing knee hyperextension and a matched training device. Disclosure of Invention The invention provides a brace for preventing knee hyperextension and a matched training device, which solve the problems that the existing hemiplegic patient is easy to have knee hyperextension in rehabilitation training and training equipment has single function. The invention provides the following technical scheme: a brace for preventing knee hyperextension, comprising: The lower leg fixing frame comprises an underframe and thigh fixing frames, wherein connecting bolts are fixedly connected to the bottoms of two sides of the underframe, and connecting nuts are connected to the connecting bolts in a threaded manner; The inner side of the underframe is fixedly connected with a shank fixing frame, the shank fixing frame is used for being bound on the shank part of a patient, and the thigh fixing frame is used for being bound on the thigh part of the patient; one side of the shank fixing frame is fixedly connected with a lower binding belt and a lower contraction frame respectively, and the lower binding belt penetrates through the lower contraction frame and is detachably connected with the magic mother plaster through the magic child plaster; an upper binding belt and an upper contraction frame are fixedly connected to one side of the thigh fixing frame respectively, and the upper binding belt penetrates through the upper contraction frame and is detachably connected with the magic mother plaster through the magic child plaster; Two connecting parts are symmetrically and fixedly connected to the top of the underframe, and the two connecting parts are connected with one side of the bottom of the thigh fixing frame to realize the rotary connection of the underframe and the thigh fixing frame; And the two limiting parts are respectively arranged on the two connecting parts and are used for limiting the straightening angle between the lower leg and the thigh when the patient stands and trains, so that the problem of overstretching of the knee of the patient is prevented. In one possible design, the connecting component comprises a first connecting cover fixedly connected to the top of the chassis, a first connecting plate is slidably connected to the first connecting cover, a hinge shaft is fixedly connected to the first connecting plate in a penetrating manner, and the limiting component is arranged at one end of the hinge shaft; the hinge shaft is rotationally connected with a second con