阅读说明：本技术 一种小儿膝过伸矫正器 (Child's knee hyperextension unscrambler ) 是由 范晓辉 李淑亚 于娟 王俊江 王文广 曹世霞 徐建高 于 2019-09-27 设计创作，主要内容包括：本发明公开了一种小儿膝过伸矫正器,包括小腿固定部件、联动部件以及大腿固定部件,所述小腿固定部件包括弧形片二、调节螺钉二、限位条二、限位杆二和固定带二。本发明患者在下蹲时,齿轮顺时针转动使得齿条向上移动带动了活塞在液压筒内部向上移动,使得囊体内部的液压油通过软管进入活塞下方的液压筒内部,使得囊体收缩,在这一过程中,大腿肌肉会扩张,囊体收缩避免对腿部肌肉造成压迫,对腿部造成伤害,在患者下蹲后站立时,齿轮逆时针转动使得齿条向下移动带动了活塞在向下移动,活塞在液压筒内部向下移动使得活塞下方液压筒液压油通过软管进入囊体,使得囊体扩张,在一过程中,大腿肌肉收缩,囊体扩张使得大腿固定部件紧紧与大腿固定。(The invention discloses an appliance for correcting hyperextension of knee of children, which comprises a shank fixing part, a linkage part and a thigh fixing part, wherein the shank fixing part comprises a second arc-shaped sheet, a second adjusting screw, a second limiting strip, a second limiting rod and a second fixing belt. When a patient squats, the gear rotates clockwise to enable the rack to move upwards to drive the piston to move upwards in the hydraulic cylinder, so that hydraulic oil in the capsule enters the hydraulic cylinder below the piston through the hose to enable the capsule to contract, thigh muscles can expand in the process, the capsule is contracted to avoid pressing on the leg muscles and damage to legs, when the patient stands after squats, the gear rotates anticlockwise to enable the rack to move downwards to drive the piston to move downwards, the piston moves downwards in the hydraulic cylinder to enable the hydraulic oil in the hydraulic cylinder below the piston to enter the capsule through the hose to enable the capsule to expand, and in the process, the thigh muscles contract and the capsule expands to enable the thigh fixing part to be tightly fixed with the thigh.)

1. An appliance for correcting hyperextension of knee of child is characterized in that it comprises a shank fixing part, a linkage part and a thigh fixing part, the shank fixing part comprises a second arc-shaped sheet (16), a second adjusting screw (161), a second limit strip (17), a second limit rod (162) and a second fixing belt (18), the middle position of the second arc-shaped sheet (16) along the radian direction is provided with three second adjusting screws (161) in a penetrating way at equal intervals, and one end of the second adjusting screw (161) positioned at the inner side of the second arc-shaped sheet (16) is provided with a second limit strip (17) through a bearing, two ends of the second limiting strip (17) close to one side of the second arc-shaped sheet (16) are both vertically provided with a second limiting rod (162), one end of the second limiting rod (162) far away from the second limiting strip (17) extends to the outer side of the second arc-shaped piece (16), and two ends of the second arc-shaped piece (16) are provided with second fixing belts (18);

the linkage component comprises a hydraulic cylinder (15), an annular limiting block (1), a piston (14), a rack (12), a reset spring (13), a rotating shaft (11) and a gear (3), wherein the hydraulic cylinder (15) is arranged on two side walls at two ends of the second arc-shaped piece (16), the annular limiting block (1) is arranged at the bottom end inside the hydraulic cylinder (15), the piston (14) is arranged inside the hydraulic cylinder (15) above the annular limiting block (1) in a sliding mode, the rack (12) is vertically arranged at the top of the piston (14), the top end of the rack (12) extends to the top of the hydraulic cylinder (15), the reset spring (13) is arranged between the piston (14) outside the rack (12) and the top of the hydraulic cylinder (15), the rotating shaft (11) is arranged on the tops of two ends of the second arc-shaped piece (16) through bearings, the gear (3) is arranged at one end, far away from the second arc-shaped, the gear (3) is meshed with the rack (12);

the thigh fixing part comprises a first arc-shaped sheet (7), a first adjusting screw (71), a first limiting strip (6), a first limiting rod (72), a cloth sheet (5), a bag body (8), a hose (2) and a fixing rod (10), wherein the first arc-shaped sheet (7) is uniformly provided with three first adjusting screws (71) in a penetrating manner along the radian direction of the first arc-shaped sheet, one end of each first adjusting screw (71) positioned on the inner side of the first arc-shaped sheet (7) is connected with the first limiting strip (6) through a bearing, two ends of each first limiting strip (6) close to two ends of each first adjusting screw (71) are respectively and vertically provided with the first limiting rod (72), one end of each first limiting rod (72) far away from the first limiting strip (6) extends to the outer side of the first arc-shaped sheet (7), the two ends of each first arc-shaped sheet (7) are respectively provided with the cloth sheets (5), one end of each cloth sheet (5) far away, one side of cloth piece (5) is provided with utricule (8), one side of utricule (8) is provided with hose (2), and hose (2) keep away from the inside bottom that the one end of utricule (8) extended to hydraulic pressure section of thick bamboo (15), the bottom at arc piece (7) both ends all is provided with dead lever (10) perpendicularly, and dead lever (10) keep away from the one end and pivot (11) lateral wall fixed connection of arc piece (7).

2. The children's knee hyperextension corrector according to claim 1, wherein the fixing strap (4) is provided with a magic tape (9).

3. The device for correcting hyperextension of knee in children according to claim 1, wherein a second magic tape (19) is disposed on the second fixing strap (18).

4. The device as claimed in claim 1, wherein the arc of the first arc-shaped piece (7) is larger than the arc of the second arc-shaped piece (16).

5. The device as claimed in claim 1, wherein the length of the fixing rod (10) is 5-8 cm.

Technical Field

The invention relates to the technical field of medical instruments, in particular to a child knee hyperextension corrector.

Background

The knee joint is the most complex joint of the human body, the hyperextension of the knee is a common relatively serious deformity, is generally compensatory change and is often seen in the terminal stage of the supporting phase, and the common causes comprise 1, compensatory hyperextension of the lateral knee joint caused by the weakness of the lateral knee joint; 2. flexor spasm or contracture causes hyperextension of the knee; 3. knee hyperextension compensation is adopted when the knee is collapsed and walks; 4. a spasm of the extensor muscles of the knee; 5. when the trunk is bent forward, the gravity falls in front of the knee joint to promote the knee joint to extend backward to keep balance. The hyperextension of the knee is a great important problem of knee dysfunction, and for spastic cerebral palsy, the hyperextension of the knee is caused by the misstanding and walking without attention in the early stage due to the self-coordination disorder of children in the standing and walking processes. In this case, a good rehabilitation program needs to be adopted as soon as possible to intervene as soon as possible, inhibit the abnormal posture of knee hyperextension and promote the development of the normal posture.

At present, gait of patients with hyperextension of knee can be gradually improved only through rehabilitation training of strength, flexion and extension and the like, and the phenomenon of hyperextension of knee is relieved, but the patients often fail to walk normally for a long time due to poor rehabilitation training effect, so that the quality of daily life is influenced.

The patent of invention named as 'a knee joint hyperextension prevention rehabilitation corrector' is granted by the national intellectual property office 2011, 01 month and 05, and the application number is as follows; 200810304336.1, which discloses the following technical solutions; the utility model provides a recovered unscrambler of hyperextension is prevented to knee joint, it includes thigh board and shank board by articulated elements articulated, its characterized in that: the thigh plate and the shank plate are respectively positioned above and below the popliteal fossa at the rear part of the knee joint, the hinge joint is positioned outside the popliteal fossa at the rear part of the knee joint, the thigh plate and the shank plate are respectively provided with radians corresponding to the rear side of the thigh and the rear side of the shank of a patient, two side edges of the thigh plate and the shank plate are gradually contracted towards two ends of the hinge shaft at the positions close to the hinge joint, and a layer of full-length rubber pad … … is padded on the front surfaces of the thigh plate and the shank plate. However, this patent has the following disadvantages in its use; 1. because the hinge point of the thigh plate and the shank plate is positioned at the rear side of the knee joint of the patient, and the thigh plate and the shank plate are respectively fixed on the thigh and the shank, when squatting, the turning point of the bending of the thigh and the shank is not at the same position as the hinge point of the thigh plate and the shank plate, and the thigh plate and the shank plate can be abutted against the knee joint; 2. to realize the purpose of orthopedics, the thigh plate and the shank plate are required to be respectively clung to the thigh and the shank, namely, the bandage is required to have no elasticity and to be tightened with the shank, so that when the patient stands, the hinged part between the thigh plate and the shank plate can be abutted against the rear side of the knee joint of the patient, the abutting force of the rear side of the knee joint is given, the backward convex symptom of the knee joint is controlled, and the purpose of orthopedics is achieved.

Disclosure of Invention

1. Technical problem to be solved

The invention aims to provide an appliance for correcting hyperextension of knee joints of children, which solves the problems in the background technology.

2. Technical scheme

In order to solve the problems, the invention adopts the following technical scheme:

the child knee hyperextension appliance comprises a shank fixing part, a linkage part and a thigh fixing part, wherein the shank fixing part comprises a second arc piece, a second adjusting screw, a second limiting strip, a second limiting rod and a second fixing band, three second adjusting screws penetrate through the second arc piece along the middle position of the second arc piece in the radian direction at equal intervals, one end of the second adjusting screw, which is located on the inner side of the second arc piece, is provided with the second limiting strip through a bearing, two ends of the second limiting strip, which are close to one side of the second arc piece, are both vertically provided with the second limiting rod, one end of the second limiting rod, which is far away from the second limiting strip, extends to the outer side of the second arc piece, and two ends of the second arc piece are both provided with the;

the linkage component comprises a hydraulic cylinder, an annular limiting block, a piston, a rack, a reset spring, a rotating shaft and a gear, wherein the hydraulic cylinder is arranged on two side walls of two ends of the arc-shaped piece, the annular limiting block is arranged at the bottom end inside the hydraulic cylinder, the piston is arranged inside the hydraulic cylinder above the annular limiting block in a sliding mode, the rack is vertically arranged at the top of the piston, the top end of the rack extends to the top of the hydraulic cylinder, the reset spring is arranged between the piston outside the rack and the top of the hydraulic cylinder, the rotating shaft is arranged at the tops of two ends of the arc-shaped piece through bearings, the gear is arranged at one end, away from the arc-shaped piece II, of the rotating shaft, and the;

the thigh fixing part comprises a first arc-shaped sheet, a first adjusting screw, a first limiting strip, a first limiting rod, cloth sheets, bag bodies, hoses and fixing rods, wherein the first arc-shaped sheet is uniformly provided with three first adjusting screws in a penetrating manner along the radian direction, one end of each first adjusting screw, which is positioned at the inner side of the first arc-shaped sheet, is connected with the first limiting strip through a bearing, two ends of each first limiting strip, which are close to two ends of the first adjusting screw, are vertically provided with the first limiting rods, one end of each first limiting rod, which is far away from the first limiting strip, extends to the outer side of the first arc-shaped sheet, the two ends of the first arc-shaped sheet are provided with the cloth sheets, one end of each cloth sheet, which is far away from the first arc-shaped sheet, is provided with a first fixing belt, one side of each cloth sheet is provided with the bag body, one end of each hose, and one end of the fixing rod, which is far away from the first arc-shaped sheet, is fixedly connected with the side wall of the rotating shaft.

Preferably, a first magic tape is arranged on the first fixing band.

Preferably, the second fixing band is provided with a second magic tape.

Preferably, the radian of the first arc-shaped sheet is greater than that of the second arc-shaped sheet.

Preferably, the length of the fixing rod is 5-8 cm.

3. Advantageous effects

1. In the invention, a second arc piece of a shank fixing part is provided with a second three adjusting screws at equal intervals along the middle position in the radian direction, one end of the second adjusting screw, which is positioned at the inner side of the second arc piece, is provided with a second limiting strip through a bearing, both ends of the second limiting strip, which are close to one side of the second arc piece, are vertically provided with a second limiting rod, one end of the second limiting rod, which is far away from the second limiting strip, extends to the outer side of the second arc piece, a first three adjusting screws uniformly penetrate along the radian direction of the first arc piece of the shank fixing part, one end of the first adjusting screw, which is positioned at the inner side of the first arc piece, is connected with a first limiting strip through a bearing, both ends of the first limiting strip, which are close to both ends of the first adjusting screws, are vertically provided with a first limiting rod, one end of the first limiting rod, which is far away from the first limiting strip, rotate three adjusting screw two respectively and make three spacing two remove the shank front side and contradict, rotate three adjusting screw one respectively and make spacing one remove and contradict with the thigh front side, can adapt to the patient with different bodily forms, and because the thigh is nearer with the shank front side from the bone, when orthopedic, spacing one can both hug closely the shank with spacing two.

2. Two side walls at two ends of an arc-shaped sheet are respectively provided with a hydraulic cylinder, the inner bottom end of the hydraulic cylinder is provided with an annular limiting block, a piston is arranged in the hydraulic cylinder above the annular limiting block in a sliding manner, the top of the piston is vertically provided with a rack, the top end of the rack extends to the top of the hydraulic cylinder, a return spring is arranged between the piston at the outer side of the rack and the top of the hydraulic cylinder, the tops at two ends of the arc-shaped sheet are respectively provided with a rotating shaft through a bearing, one end of the rotating shaft far away from the arc-shaped sheet is provided with a gear which is mutually meshed with the rack, two ends of the arc-shaped sheet are respectively provided with a cloth piece, one end of the cloth piece far away from the arc-shaped sheet is provided with a fixing belt I, one side of the cloth piece is provided with an airbag body, one side of the airbag body is provided with a hose, one end of the hose far away, when the knee joint correcting device is applied, the shank fixing part and the thigh fixing part are respectively and tightly fixed at the position of a thigh by the fixing belt II and the fixing belt I, and the 2 gears are positioned at two sides of the knee joint, when a patient stands, the arc piece II and the arc piece are kept in a vertical state, at the moment, the piston is pressed against the top of the annular limiting block in the hydraulic cylinder, the rack cannot move downwards, so that the gears cannot rotate anticlockwise, namely, the arc piece cannot bend forwards around a hinge point, the force for supporting the thigh and the shank is given, the thigh and the shank are prevented from bending forwards, the backward convex symptom of the knee joint is controlled, the aim of correction is achieved, when the patient squats downwards, the rotating shaft rotates clockwise, so that the gear rotates clockwise while the arc piece I and the arc piece II bend, and the rack rotates clockwise, so that the rack moves upwards to drive, the piston moves upwards in the hydraulic cylinder to compress the return spring, and hydraulic oil in the capsule body enters the hydraulic cylinder below the piston through the hose to contract the capsule body, thigh muscles expand in the process, the capsule body contracts to avoid pressing the leg muscles and hurting the legs, although the return spring has force for obstructing the bending of knee joints when a patient squats, the whole weight of the body moves downwards when the patient squats, the obstructing force does not affect the squats of the patient, when the patient stands after squats, the rotating shaft anticlockwise rotates the gear, the rack anticlockwise rotates to enable the rack to move downwards to drive the piston to move downwards in the hydraulic cylinder, the piston moves downwards in the hydraulic cylinder to enable the hydraulic cylinder below the piston to enter the capsule body through the hose, so that the capsule body expands, and the thigh muscles contract in the process, the utricule expansion makes thigh fixed part tightly fixed with the thigh, simultaneously when the patient stood after squatting, reset spring resumes deformation and has a power that promotes the piston decurrent, can make the rack remove downwards, promotes gear anticlockwise rotation, promotes the patient promptly and climbs after squatting, when the training, can alleviate the intensity of training to a certain extent.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a thigh engaging part of the present invention;

FIG. 3 is a schematic view of the calf securing member construction of the present invention;

FIG. 4 is a schematic side view of the present invention.

Reference numerals: 1-annular limiting block, 2-hose, 3-gear, 4-fixing band I, 5-cloth piece, 6-limiting strip I, 7-arc piece I, 71-adjusting screw I, 72-limiting rod I, 8-bag body, 9-magic tape I, 10-fixing rod, 11-rotating shaft, 12-rack, 13-reset spring, 14-piston, 15-hydraulic cylinder, 16-arc piece II, 161-adjusting screw II, 162-limiting rod II, 17-limiting strip II, 18-fixing band II and 19-magic tape II.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Examples

As shown in fig. 1-4, the child knee hyperextension appliance comprises a lower leg fixing part, a linkage part and a thigh fixing part, wherein the lower leg fixing part comprises a second arc piece 16, a second adjusting screw 161, a second limit strip 17, a second limit rod 162 and a second fixing band 18, the second arc piece 16 is provided with the second three adjusting screws 161 at equal intervals along the middle position in the arc direction, one end of the second adjusting screw 161, which is positioned at the inner side of the second arc piece 16, is provided with the second limit strip 17 through a bearing, two ends of the second limit strip 17, which are close to one side of the second arc piece 16, are both vertically provided with the second limit rod 162, one end of the second limit rod 162, which is far away from the second limit strip 17, extends to the outer side of the second arc piece 16, two ends of the second arc piece 16 are both provided with the second fixing band 18, and the;

the linkage component comprises a hydraulic cylinder 15, an annular limiting block 1, a piston 14, a rack 12, a return spring 13, a rotating shaft 11 and a gear 3, the hydraulic cylinder 15 is arranged on two side walls of two ends of an arc-shaped piece II 16, the annular limiting block 1 is arranged at the bottom end inside the hydraulic cylinder 15, the piston 14 is arranged inside the hydraulic cylinder 15 above the annular limiting block 1 in a sliding mode, the rack 12 is vertically arranged at the top of the piston 14, the top end of the rack 12 extends to the top of the hydraulic cylinder 15, the return spring 13 is arranged between the piston 14 outside the rack 12 and the top of the hydraulic cylinder 15, the rotating shaft 11 is arranged at the tops of two ends of the arc-shaped piece II 16 through a bearing, the gear 3 is arranged at one end, away from the arc-shaped piece II;

the thigh fixing part comprises a first arc sheet 7, a first adjusting screw 71, a first limiting strip 6, a first limiting rod 72, a cloth sheet 5, a bag body 8, a hose 2 and a fixing rod 10, wherein the radian of the first arc sheet 7 is larger than that of the second arc sheet 16, the first arc sheet 7 is uniformly provided with three first adjusting screws 71 along the radian direction, one end of each first adjusting screw 71, which is positioned at the inner side of the first arc sheet 7, is connected with the first limiting strip 6 through a bearing, two ends of each first limiting strip 6, which are close to two ends of each first adjusting screw 71, are respectively and vertically provided with the first limiting rod 72, one end of each first limiting rod 72, which is far away from the first limiting strip 6, extends to the outer side of the first arc sheet 7, two ends of each first arc sheet 7 are respectively provided with the cloth sheet 5, one end of each cloth sheet 5, which is far away from the first arc sheet 7, is provided with a first fixing belt 4, the first magic tape, and the hose 2 is kept away from the one end of utricule 8 and is extended to the inside bottom of hydraulic cylinder 15, and the bottom at arc piece 7 both ends all is provided with dead lever 10 perpendicularly, and dead lever 10 keeps away from the one end and the 11 lateral walls fixed connection of pivot of arc piece 7, and the length of dead lever 10 is 5 ~ 8 cm.

The working principle is as follows: the shank fixing part and the thigh fixing part are respectively and tightly fixed at the position of a thigh and a shank through a fixing belt II 18 and a fixing belt I4, 2 gears 3 are positioned at two sides of a knee joint, then three adjusting screws II 161 are respectively rotated to enable three limiting strips II 17 to move and abut against the front side of the shank, three adjusting screws I71 are respectively rotated to enable a limiting strip I6 to move and abut against the front side of the thigh, patients with different body shapes can be adapted, and because the thigh and the front side of the shank are closer to a bone, the limiting strips I6 and the limiting strips II 17 can be tightly attached to the leg during orthopedic, when a patient stands, an arc sheet II 16 and an arc sheet I7 are kept in a vertical state, at the moment, the piston 17 abuts against the top of an annular limiting block 1 inside a hydraulic cylinder 15, the rack 12 cannot move downwards, so that the gear 11 cannot rotate anticlockwise, namely the arc, the supporting force of the thighs and the shanks is given, the thighs and the shanks are prevented from bending forwards, the backward convex symptom of the knee joints is controlled, and the orthopedic purpose is achieved, when a patient squats, the rotating shaft 11 rotates clockwise to enable the arc-shaped pieces 7 and the arc-shaped pieces 16 to bend, the gear 11 rotates clockwise, the rack 12 moves upwards to drive the piston 14 to move upwards in the hydraulic cylinder 15, the piston 14 moves upwards in the hydraulic cylinder 15 to compress the return spring 13, hydraulic oil in the capsule 8 enters the hydraulic cylinder 15 below the piston 14 through the hose 2 to enable the capsule 8 to contract, in the process, thigh muscles can expand, the capsule 8 contracts to avoid pressing the leg muscles and damaging the legs, although the return spring 13 has the force of resisting the bending of the knee joints during squat, the whole weight of the body moves downwards during squat, hinder strength and do not influence people's squatting, and when the patient stood after squatting, pivot 11 anticlockwise makes gear 3 anticlockwise rotate, and gear 3 anticlockwise makes rack 12 move down and has driven piston 14 at the inside downstream of hydraulic cylinder 15, piston 14 makes piston 14 below hydraulic cylinder 15 hydraulic oil pass through hose 2 and get into utricule 8 at the inside downstream of hydraulic cylinder 15, make utricule 8 expansion, in-process, thigh muscle shrink, utricule 8 expansion makes thigh fixed part tightly fixed with the thigh, simultaneously when the patient stands after squatting, reset spring 13 resumes deformation and has a power that promotes piston 14 decurrent, can impel rack 12 to move down, impel gear 3 anticlockwise rotation, impel the patient to climb after squatting, in the training, can alleviate the intensity of training to a certain extent.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.