CN109984919B

CN109984919B - Knee joint rehabilitation device

Info

Publication number: CN109984919B
Application number: CN201910333629.0A
Authority: CN
Inventors: 汪正宇; 杨民; 胡旭峰; 王清华; 谢加兵
Original assignee: Yijishan Hospital of Wannan Medical College
Current assignee: Yijishan Hospital of Wannan Medical College
Priority date: 2019-04-24
Filing date: 2019-04-24
Publication date: 2021-04-16
Anticipated expiration: 2039-04-24
Also published as: CN109984919A

Abstract

The invention discloses a knee joint rehabilitation device, comprising a main body part, a pair of angle adjustment parts, a pair of reciprocating driving parts and a pair of leg fixing parts. seat. In the present invention, by rotating the rotating handle, one end of the pedal of the arc strip is turned upward around the hinge point with the seat plate, and the lower leg is turned upward. When severe pain is felt at the knee joint, the rotating handle is stopped to make the patient's lower leg and thigh. Maintain a certain angle, that is, the adjustment of the leg bending angle is completed, and then the drive motor rotates to drive the "]" type slider to move up and down reciprocatingly, through the meshing length between the rack and the gear, that drives the arc bar to flip the specified angle, Therefore, the calf is bent at an appropriate angle, and reciprocating bending is performed at this bending angle, so as to achieve the purpose of exercising the knee joint, which is beneficial to the recovery of the knee joint of the patient, and improves the enthusiasm of the patient to exercise.

Description

Knee joint rehabilitation device

Technical Field

The invention relates to the technical field of medical instruments, in particular to a knee joint rehabilitation device.

Background

Along with the improvement of living standard, people pay more and more attention to their health, wherein the knee joint is regarded as a high-incidence part of diseases and receives more and more attention, the knee joint stiffness is caused by the phenomenon that the knee joint can not freely bend or straighten or severely pain is generated in the normal movement process due to the atrophy, degeneration and adhesion of the knee joint structures such as joint synovium, cartilage and the like, the knee joint stiffness limits the knee joint function of a patient and seriously affects the life and the working quality of the patient, the prior methods for treating the knee joint stiffness are divided into two types, one is surgical treatment, namely directly loosening the adhered tissues through surgery or directly prolonging the tissues such as muscle bonds of a shortened part, the other is conservative treatment represented by manual loosening and CPM machine, the principle is that external force is applied to the knee joint to slowly pull the adhered tissues apart and the metabolism of the tissues, the shortened tissues such as tendons and the like are slowly prolonged, so that the buckling function is improved, however, the surgical treatment is an invasive treatment means, new trauma and pain are brought to a patient by secondary surgery, scars and adhesion are still likely to be generated after the surgical loosening, conservative treatments such as manual loosening and CPM are still needed after the surgery, and otherwise, secondary stiffness is still caused.

Therefore, under the condition, the knee joint rehabilitation device is suitable for the birth, the rehabilitation devices after the knee joint operation treatment are various, most of the rehabilitation devices aim at the knee joint and related muscle groups to carry out corresponding knee joint bending exercise and knee joint straightening exercise, the knee joint rehabilitation training device is special equipment for the knee joint rehabilitation training in the hospital at present and is also an important means for postoperative rehabilitation, the passive rehabilitation training device is driven by a motor, two force arms of the passive rehabilitation training device are respectively carried on the thigh and the calf of a patient, the patient completely carries the leg on the rehabilitation training device when using, the motor drives the arm to move, the motion trail simulates the bending motion of the leg of the human body, but the bending angle of the knee joint rehabilitation device is not adjustable, the patient feels pain when bending at a certain angle because the knee joint is in the recovery stage when training, if the leg of the patient is forcibly driven to carry out large-amplitude bending motion, is not beneficial to the recovery of the knee joint of the patient and can also reduce the enthusiasm of the patient for training.

Disclosure of Invention

1. Technical problem to be solved

The present invention is directed to a knee joint rehabilitation device to solve the above problems.

2. Technical scheme

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

a knee joint rehabilitation device comprises a main body part, a pair of angle adjusting parts, a pair of reciprocating driving parts and a pair of leg fixing parts, wherein the main body part comprises an L-shaped base, a seat plate, side plates and a fixing seat, the seat plate is horizontally arranged on the inner side of the L-shaped base, the L-shaped base on the two sides of the seat plate is vertically provided with the side plates, one side of each side plate, which is far away from the L-shaped base, is provided with a sliding groove, a sliding strip is arranged in the sliding groove along the length direction of the sliding groove, and the fixing seat is arranged on the L-shaped base below the seat plate;

the angle adjusting components are respectively arranged in the 2 sliding grooves in a sliding mode and comprise a J-shaped sliding block, a screw rod, a threaded sliding block, an L-shaped rod and a rack, the J-shaped sliding block is arranged on the sliding strip in a sliding mode, the sliding block is arranged on the inner side of the J-shaped sliding block in a sliding mode along the length direction of the sliding block in a sliding mode through a sliding rail, the screw rod is arranged on the inner side of the J-shaped sliding block on one side of the sliding block, the threaded sliding block is sleeved on the outer side of the top end of the screw rod, the threaded sliding block is in threaded fit with the screw rod, one side of the threaded sliding block is connected with the sliding block, the L-shaped rod is arranged on one side, away from the sliding block, of;

the pair of reciprocating driving parts are respectively arranged on the fixed seats below the pair of angle adjusting parts, each reciprocating driving part comprises a motor, a circular turntable and a hinge rod, the motors are fixedly connected with the fixed seats, the circular turntable is arranged at the output end of each motor, the bottom end of one side, away from the motors, of the circular turntable is hinged with the hinge rod, and one end, away from the circular turntable, of the hinge rod is hinged with the bottom end of the J-shaped sliding block;

the pair of leg fixing parts are symmetrically hinged to one side, far away from the L-shaped base, of the seat plate, a hinged shaft, close to one end of the side plate, of each leg fixing part extends to one side of the rack, a gear is arranged, and the gears are meshed with the bottom ends of the racks.

Preferably, the leg fixing part comprises an arc-shaped strip, a pedal, a second rubber pad and two fixing pieces arranged at the opening of the arc-shaped strip and used for fixing the leg, the pedal is vertically arranged at one end of the arc-shaped strip, and the second rubber pad is arranged on the inner side of the arc-shaped strip.

Preferably, the mounting includes the area body, rubber pad one, hasp and hasp, the area body sets up the one side at the arc strip opening part, rubber pad one sets up the one side at the area body, the hasp sets up the one end of keeping away from the arc strip at the area body, the hasp sets up the one side of keeping away from the area body at the arc strip opening part, and hasp match each other.

Preferably, the top end of the screw rod extends through the top of the J-shaped sliding block and is connected with a rotating handle.

Preferably, the length of the rack is equal to the reciprocating distance of the slide block in the shape of ']' driven by the reciprocating driving component.

Preferably, the difference between the length of the slide groove and the length of the "]" type slide block is larger than the distance of the reciprocal movement of the "]" type slide block driven by the reciprocal driving means.

3. Advantageous effects

1. The seat plate of the invention is horizontally arranged at the inner side of an L-shaped base, side plates are vertically arranged on the L-shaped base at the two sides of the seat plate, a sliding groove is arranged at one side of the side plate far away from the L-shaped base, a sliding strip is arranged in the sliding groove along the length direction, a "]" -shaped sliding block is arranged on the sliding strip in a sliding way, a sliding block is arranged at the inner side of the "]" -shaped sliding block along the length direction, a screw rod is arranged at the inner side of the "]" -shaped sliding block at one side of the sliding block, a threaded sliding block is sleeved at the outer side of the top end of the screw rod, the threaded sliding block is in threaded fit with the screw rod, one side of the threaded sliding block is connected with the sliding block, an L-shaped rod is arranged at one side of the threaded sliding block, a rack is arranged at one side of the L-shaped rod far away from the threaded sliding block, an arc-shaped strip, when in use, a patient can sit on the seat plate, the leg part which needs to carry out rehabilitation training on the knee joint is placed on the inner side of the arc-shaped strip, and the leg part is fixed through the fixing piece, then the rotating handle at one side of the leg part which needs to carry out rehabilitation training on the knee joint is rotated, so that the screw rod is rotated to drive the threaded slide block on the screw rod to move downwards, when the threaded slide block moves downwards, the L-shaped rod is driven to move downwards, because the rack is arranged on one side of the L-shaped rod and the rack is meshed with the gear of the hinging shaft of the arc-shaped strip, one end of the pedal of the arc-shaped strip is overturned upwards around the hinging point with the seat plate, thereby driving the shank to turn upwards, stopping rotating the rotary handle when the knee joint feels severe pain, at the moment, the arc-shaped strip stops overturning, so that the lower leg and the thigh of the patient keep a certain angle, and after the pain of the patient is relieved, the bending angle of the leg is adjusted.

2. The output end of the motor of the invention is provided with a circular turntable, the bottom end of the circular turntable, which is far away from one side of the motor, is hinged with a hinge rod, one end of the hinge rod, which is far away from the circular turntable, is hinged with the bottom end of a J-shaped sliding block, when the leg bending angle is adjusted, the motor is started, the output end of the motor drives the rotating disc to rotate, so that one end, which is hinged with the rotating disc and the hinge rod, moves upwards, the other end of the hinge rod moves upwards to push the J-shaped sliding block to move upwards, so that a rack on one side of an L-shaped rod moves upwards, when the rack moves upwards, one end of a pedal of an arc strip can be driven by a gear to turn downwards around a hinge point with a seat plate, when the arc strip rotates to be vertical to a horizontal plane, the J-shaped sliding block, when the hinged end of the rotating disc and the hinged rod moves upwards to the highest point, the ']' -shaped sliding block rises to the topmost point, the rotating disc continues to rotate, the hinged end of the rotating disc and the hinged rod moves downwards, the other end of the hinged rod pulls the ']' -shaped sliding block downwards to move, the ']' -shaped sliding block drives the rack to move downwards to be meshed with the gear again, the arc-shaped strip is driven to turn over, when the arc-shaped strip rises to turn over to the position adjusted for the last time, the hinged end of the rotating disc and the hinged rod moves to the lowest point, the rotating disc continues to rotate and repeats the actions to drive the arc-shaped strip to turn downwards to be vertical to the horizontal plane, namely, the rotating disc rotates to drive the ']' -shaped sliding block to do not change in reciprocating motion distance, the length of meshing of the rack and the gear is changed, the arc-shaped strip is driven to turn over in a specified angle in, is beneficial to the recovery of the knee joint.

In conclusion, the screw rod rotates to drive the threaded slide block on the screw rod to move downwards by rotating the rotary handle, the screw rod is driven to move downwards when moving downwards, the L-shaped rod moves downwards, one side of the L-shaped rod is provided with the rack, and the rack is meshed with the gear of the arc-shaped strip hinged shaft, so that one end of the arc-shaped strip pedal is enabled to upwards overturn around the hinged point with the seat plate to further drive the shank to upwards overturn, when the knee joint feels severe pain, the rotary handle stops rotating, the arc-shaped strip stops overturning at the moment, the lower leg and the thigh of a patient keep a certain angle, after the pain of the patient is relieved, the bending angle of the leg is adjusted, then the drive motor rotates to drive the J-shaped slide block to upwards and downwards reciprocate, the arc-shaped strip is driven to overturn for a designated angle through the meshing length between the rack and the gear, and the shank is, the patient bends to the angle when having severe pain, carries out reciprocal bending at this bending angle, reaches the purpose of tempering the knee joint, is favorable to the recovery of patient's knee joint, improves the enthusiasm that the patient tempered.

Drawings

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

FIG. 2 is a schematic front view of the present invention;

fig. 3 is a schematic top view of the arc-shaped strip of the present invention.

Reference numerals: 1-circular turntable, 2-hinged rod, 3-L-shaped base, 31-seat plate, 4-side plate, 5-sliding groove, 51-sliding strip, 6-rotary handle, 7- "]" sliding block, 71-sliding block, 8-L-shaped rod, 81-rack, 9-screw rod, 91-threaded sliding block, 10-gear, 11-belt body, 111-rubber pad I, 112-lock catch, 113-lock ring, 12-arc strip, 121-pedal, 122-rubber pad II, 13-fixed seat and 14-motor.

Detailed Description

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

Examples

As shown in fig. 1-3, a knee joint rehabilitation device includes a main body component, a pair of angle adjustment components, a pair of reciprocating driving components, and a pair of leg fixing components, the main body component includes an L-shaped base 3, a seat plate 31, side plates 4, and fixing seats 13, the seat plate 31 is horizontally disposed on the inner side of the L-shaped base 3, the side plates 4 are vertically disposed on the L-shaped base 3 at both sides of the seat plate 31, a sliding groove 5 is disposed at one side of the side plate 4 away from the L-shaped base 3, a sliding bar 51 is disposed inside the sliding groove 5 along the length direction thereof, and the fixing seats 13 are disposed on the L-shaped base 3 below the seat plate 31;

a pair of angle adjusting components are respectively arranged in the 2 sliding grooves 5 in a sliding way, the angle adjusting components comprise a ']' type sliding block 7, a sliding block 71, a screw rod 9, a threaded sliding block 91, an L-shaped rod 8 and a rack 81, the ']' type sliding block 7 is arranged on the sliding strip 51 in a sliding way, the inner side of the ']' type sliding block 7 is provided with the sliding block 71 in a sliding way along the length direction thereof, the screw rod 9 is arranged on the inner side of the ']' type sliding block 7 at one side of the sliding block 71, the top end of the screw rod 9 extends through the top of the J-shaped sliding block 7 and then is connected with a rotating handle 6, the threaded sliding block 91 is sleeved on the outer side of the top end of the screw rod 9, the threaded sliding block 91 is in threaded fit with the screw 9, one side of the threaded sliding block 91 is connected with the sliding block 71, the L-shaped rod 8 is arranged on one side, away from the sliding block 71, of the threaded sliding block 91, and the rack 81 is arranged on one side, away from the threaded sliding block 91, of the L-shaped rod 8;

the pair of reciprocating driving parts are respectively arranged on the fixed seats 13 below the pair of angle adjusting parts, each reciprocating driving part comprises a motor 14, a circular rotating disc 1 and a hinge rod 2, the motor 14 is fixedly connected with the fixed seats 13, the circular rotating disc 1 is arranged at the output end of the motor 14, the bottom end, far away from the motor 14, of the circular rotating disc 1 is hinged with the hinge rod 2, one end, far away from the circular rotating disc 1, of the hinge rod 2 is hinged with the bottom end of the ']' type sliding block 7, the length of the rack 81 is equal to the reciprocating movement distance of the reciprocating driving part for driving the ']' type sliding block 7, and the difference between the length of the sliding groove 5 and the length of the ']' type sliding block 7 is larger than the reciprocating movement distance;

a pair of leg fixing parts are symmetrically hinged on one side of the seat plate 31 far away from the L-shaped base 3, a hinged shaft of one end of the leg fixing part close to the side plate 4 extends to one side of the rack 81 and is provided with a gear 10, and gear 10 and rack 81's bottom intermeshing, shank fixed part includes arc strip 12, footboard 121, two 122 of rubber pads and two mountings that are used for fixed shank of setting at arc strip 12 opening part, footboard 121 sets up the one end at arc strip 12 perpendicularly, two 122 of rubber pads set up the inboard at arc strip 12, the mounting includes the area body 11, first 111 of rubber pads, hasp 112 and hasp 112, area body 11 sets up the one side at arc strip 12 opening part, first 111 of rubber pads sets up the one side at area body 11, hasp 112 sets up the one end of keeping away from arc strip 12 at area body 11, hasp 112 sets up the one side of keeping away from area body 11 at arc strip 12 opening part, and hasp 112 match each other.

The working principle is as follows: when the rehabilitation training device is used, a patient can sit on the seat plate 31, the leg part needing to perform rehabilitation training on the knee joint is placed on the inner side of the arc-shaped strip 12, the lock catch 112 of the belt body 11 is inserted into the lock ring 113 to fix the leg part, the first rubber pad 111 is matched with the second rubber pad 122 to clamp the leg part, then the rotating handle 6 on one side of the leg part needing to perform rehabilitation training on the knee joint is rotated, the screw 9 rotates to drive the threaded sliding block 91 on the screw 9 to move downwards, the L-shaped rod 8 is driven to move downwards when the threaded sliding block 91 moves downwards, the rack 81 is arranged on one side of the L-shaped rod 8 and is meshed with the gear 10 of the arc-shaped strip 12, so that one end of the pedal 121 of the arc-shaped strip 12 is upwards overturned around a hinge point with the seat plate 31 to drive the shank to upwards overturn, when the knee joint feels severe pain, the rotating, at this time, the arc-shaped strip 12 stops overturning, so that a certain angle is kept between the lower leg and the thigh of the patient, after the pain of the patient is relieved, namely the bending angle of the leg is adjusted, the motor 14 is started, the output end of the motor 14 drives the rotating disc 1 to rotate, and further one end, hinged with the rotating disc 1 and the hinged rod 2, of the rotating disc is moved upwards, so that the other end of the hinged rod 2 is moved upwards to push the "]" -shaped sliding block 7 to move upwards, and further the rack 81 on one side of the L-shaped rod 8 is moved upwards, when the rack 81 is moved upwards, one end of the pedal 121 of the arc-shaped strip 12 can be driven by the gear 10 to overturn downwards around the hinged point with the seat plate 31, when the arc-shaped strip 12 is rotated to be vertical to the horizontal plane, the "]" -shaped sliding block 7 drives the rack 8 to move upwards continuously, the rack 8 just disengages from the gear 10, and cannot drive, at the moment, the ']' -shaped sliding block 7 rises to the topmost end, the rotating disc 1 continues to rotate, so that one end, hinged with the hinged rod 2, of the rotating disc 1 moves downwards, the other end of the hinged rod 2 further pulls the ']' -shaped sliding block 7 downwards, the ']' -shaped sliding block 7 drives the rack 81 to move downwards to be meshed with the gear 10 again, the arc-shaped strip 12 is driven to turn over, when the arc-shaped strip 12 turns over to the last adjusted position, the end, hinged with the hinged rod 2, of the rotating disc 1 moves to the lowest point, the rotating disc 1 continues to rotate and repeats the actions to drive the arc-shaped strip 12 to turn downwards to be vertical to the horizontal plane, namely, the rotating disc 1 rotates to drive the ']' -shaped sliding block 7 to reciprocate, the reciprocating distance does not change, the length of the rack 81 meshed with the gear 10 is changed, the arc-shaped strip 12 is driven to turn over to a designated angle, is beneficial to the recovery of the knee joint.

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.

Claims

1. A knee joint rehabilitation device, characterized in that it comprises a main body part, a pair of angle adjustment parts, a pair of reciprocating driving parts and a pair of leg fixing parts, the main body part comprising an L-shaped base (3), a seat plate (31), a side plate (4) and a fixed seat (13), the seat plate (31) is horizontally arranged on the inner side of the L-shaped base (3), and the L-shaped bases (3) on both sides of the seat plate (31) A side plate (4) is vertically arranged on both sides, and a sliding groove (5) is opened on the side of the side plate (4) away from the L-shaped base (3), and the interior of the sliding groove (5) is arranged along its length direction. There is a slider (51), and the fixed seat (13) is arranged on the L-shaped base (3) below the seat plate (31);

A pair of the angle adjustment parts are respectively slidably arranged inside the two sliding grooves (5), and the angle adjustment parts comprise a "]" type sliding block (7), a sliding block (71), a screw rod (9), a thread The sliding block (91), the L-shaped rod (8) and the rack (81), the "]"-shaped sliding block (7) is slidably arranged on the sliding bar (51), and the "]"-shaped sliding block (7) A slider (71) is slidably provided on the inner side of the slider (71) along its length through the slide rail, the screw (9) is arranged on the inner side of the "]" type sliding block (7) on one side of the slider (71), and the thread The slider (91) is sleeved on the outer side of the top end of the screw (9), and the threaded slider (91) is threadedly matched with the screw (9), and one side of the threaded slider (91) is connected with the slider (71), so The L-shaped rod (8) is arranged on the side of the threaded slider (91) away from the slider (71), and the side of the L-shaped rod (8) away from the threaded slider (91) is provided with a rack (81) ;

A pair of the reciprocating driving components are respectively arranged on the fixing bases (13) below the pair of angle adjusting components, and the reciprocating driving components include a motor (14), a circular turntable (1) and a hinge rod (2), The motor (14) is fixedly connected with the fixing seat (13), the output end of the motor (14) is provided with a circular turntable (1), and the bottom end of the circular turntable (1) on the side away from the motor (14) A hinge rod (2) is hinged, and one end of the hinge rod (2) away from the circular turntable (1) is hinged with the bottom end of the "]" type sliding block (7);

A pair of the leg fixing parts is symmetrically hinged on one side of the seat plate (31), and a gear ( 10), and the gear (10) meshes with the bottom end of the rack (81).

2 . The knee joint rehabilitation device according to claim 1 , wherein the leg fixing component comprises an arc-shaped strip (12), a pedal (121), a second rubber pad (122), and a A fixing member for fixing the leg at the opening of the bar (12), the pedal (121) is vertically arranged at one end of the arc-shaped bar (12), and the second rubber pad (122) is arranged on the arc-shaped bar (12) inside of

3 . The knee joint rehabilitation device according to claim 2 , wherein the fixing member comprises a belt body ( 11 ), a rubber pad ( 111 ), a lock ( 112 ) and a lock ( 112 ), 4 . The belt body (11) is arranged on one side of the opening of the arc strip (12), the rubber pad (111) is arranged on one side of the belt body (11), and the lock buckle (112) is arranged on the belt One end of the body (11) away from the arc strip (12), the lock (112) is arranged at the opening of the arc strip (12) at the side away from the belt body (11), and the lock (112) is connected to the (112) match each other.

4 . The knee joint rehabilitation device according to claim 1 , wherein the top end of the screw rod ( 9 ) extends through the top of the “]” type sliding block ( 7 ) and is connected with a rotating handle ( 6 ). 5 .

5 . The knee joint rehabilitation device according to claim 1 , wherein the length of the rack ( 81 ) is equal to the distance that the reciprocating driving component drives the “]” type sliding block ( 7 ) to move back and forth. 6 .

6. A knee joint rehabilitation device according to claim 1, characterized in that, the difference between the length of the sliding groove (5) and the length of the "]"-shaped sliding block (7) is greater than that of the reciprocating drive component "]" ”-type slider (7) reciprocating distance.