KR101793812B1

KR101793812B1 - Rehabilitation exercise equipment of knee joint

Info

Publication number: KR101793812B1
Application number: KR1020160006619A
Authority: KR
Inventors: 강경환
Original assignee: 건양대학교산학협력단
Priority date: 2016-01-19
Filing date: 2016-01-19
Publication date: 2017-11-06
Also published as: KR20170086949A

Abstract

The present invention relates to a rehabilitation exercise device for a knee joint, which comprises: a rehabilitation exercise device for a knee joint capable of easily measuring a rotation angle at which a rehabilitation motion of a patient is performed by moving a joint through rotation, .

Description

[0001] REHABILITATION EXERCISE EQUIPMENT OF KNEE JOINT [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rehabilitation exercise apparatus for a knee joint, and more particularly, to a rehabilitation exercise apparatus for a knee joint which can easily measure a rotation angle of a knee during a rehabilitation exercise of a patient by moving a knee joint through rotation, .

The increase in the elderly population and the spread of leports have increased the number of knee joint injuries. Rehabilitation exercises are necessary to restore the joint function after various procedures related to the knee joint, such as artificial joint surgery, restorative cruciate ligament reconstruction, and meniscus treatment.

In order to give the passive motion to the patient, the clinicians use the articulation device, which is performed immediately after the procedure to reduce the rehabilitation period of the patient, and is performed with continuous and repetitive movements.

Korean Patent No. 10-0465108 entitled " Recovery exercise device for fractured patient "has been proposed as a conventional technique for performing such a rehabilitation exercise.

Such a conventional technique includes a driving frame having a moving block moving in the longitudinal direction according to driving of a motor, an adjusting frame coupled to one end of the driving frame and having a rotating shaft, And a support frame for supporting the legs of the patient.

The support frame may include a front link portion hinged to the moving block and a rear link portion fixedly coupled to the rotation axis, and the front link portion and the rear link portion may be formed in a shape of a quadrangle so as to be folded and expanded according to the movement of the moving block. And are joined together by a folded threaded link.

And a rotation sensor is coupled to at least one point of the trimming link to sense the extent to which the link is pinched and unfolded.

However, since the rotation sensor is coupled to one of the trunnion links, a cable for operating and transmitting data from the rotation sensor is exposed to the outside, which causes the measurement sensor and the cable to be damaged Or disconnection occurs, and there is a problem that interference occurs in a fractured patient, a trimming link, or an arbitrary object from the outside during use and storage.

In addition, the above-described rotation sensor has a problem in that reliability is deteriorated due to an error in the measurement angle during repetitive motion due to the two links coupled between the two links and operated during the repetitive motion.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a rehabilitation exercise device for a knee joint capable of accurately measuring an angle of a knee during a rehabilitation treatment of a knee joint patient.

It is a further object of the present invention to provide a method of measuring a knee angle of a patient by measuring a measurement position in a link structure between a main body and a first support frame so that the measurement means is not exposed to the outside, And to provide a rehabilitation exercise device for a knee joint which can prevent breakage of disconnected cables and disconnection of the connected cables and is not interfered with patient and operation at the time of use.

In order to achieve the above-mentioned object, the present invention provides a mobile terminal comprising: a main body having a mobile block movable in a longitudinal direction by a power; A supporting part rotatably coupled to the moving block and the main body, respectively, the supporting part being rotatable in accordance with the movement of the moving block; And an angle measuring structure rotatably connected to the moving block and the supporting part and measuring an angle of the supporting part rotating according to the movement of the moving block.

A knee which is rotatably coupled to the movable block and the main body and is capable of measuring a rotation angle of a support structure that is rotatable in accordance with the movement of the movable block, The joint rehabilitation exercise device is characterized by comprising an angle measuring structure for rotatably connecting the moving block and the supporting part and measuring the changing angle of the supporting part according to the movement of the moving block through the measuring part.

Wherein the angle measuring structure includes a bracket including a base coupled to an upper end of the moving block, a support protruding to the upper portion of the base, and an insertion portion formed along the lateral direction of the base at an upper end of the support, A frame linker coupled to the frame linker and coupled to the frame linker, the frame linker being rotatably coupled to the joint linkage, the frame linker being coupled to the frame linker, And a casing coupled to the frame linker and configured to protect the bracket, the joint, and the measuring unit.

Wherein the support portion includes a first support frame rotatably connected to the frame linker and supported by the feet, a first support frame rotatably coupled to an outer circumferential surface of the first support frame at one side thereof, 2 support frame, and a third support frame, one end of which is rotatably coupled at the end of the first support frame and the other end of which is rotatably connected to the outer circumferential surface of the second support frame.

The bracket preferably includes a through hole penetrating from the bottom to the inside of the case and a first connecting line coupled to the measuring means and discharged to a lower portion of the bracket through the through hole.

And a second connector connected to the first connector and exposed to the outside of the body, the first connector being connected to the first connector, the first connector being connected to the first connector, And a second connector connected to the second connector.

According to the rehabilitation apparatus for a knee joint according to the present invention, it is possible to accurately measure the angle of a knee at the time of rehabilitation treatment of a knee joint patient.

According to the present invention, since the knee angle of the patient is measured in the link structure between the main body and the first support frame, the measuring means is prevented from being exposed to the outside, The present invention provides a rehabilitation exercise device for a knee joint that can prevent breakage of a connected cable, disconnection, and the like, and is free from patient and operation interference during use.

1 is a perspective view showing a rehabilitation exercise device for a knee joint according to the present invention,
2 is a perspective view showing an angle measurement structure according to the present invention,
3 is an exploded perspective view of the angle measuring structure according to the present invention,
FIG. 4 is a conceptual view showing a connection state of first and second connectors according to the present invention, FIG.
5 is a cross-sectional view showing an angle measuring method according to the present invention,
6 is an operation diagram showing an operating state in an installed state according to the present invention.

Hereinafter, a rehabilitation exercise device for a knee joint according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing a rehabilitation exercise device for a knee joint according to the present invention, FIG. 2 is a perspective view illustrating an angle measurement structure according to the present invention, FIG. 3 is an exploded perspective view FIG. 4 is a conceptual diagram showing the connection state of the first and second connectors according to the present invention, FIG. 5 is a sectional view showing an angle measuring method according to the present invention, FIG. Fig. 3 is an operation diagram showing an operating state.

As shown in FIGS. 1 to 6, the present invention relates to a rehabilitation exercise apparatus for a knee joint, wherein a rotation angle at which a rehabilitation exercise is performed can be easily measured by moving a knee joint, The present invention relates to a rehabilitation exercise device for a knee joint.

The present invention relates to an angle measuring structure 30 which is composed of a main body 10 and a support part 20 and can measure the rotation angle of the main body 10 and the support part 20, ).

The main body 10 is provided with a moving block 11 movable in the longitudinal direction.

Here, the moving block 11 is configured to be able to move in a longitudinal direction by receiving various kinds of structures such as screws, wires, gears, and the like, and to receive power through a motor. And a cover that can be used to clean the appearance is combined.

The supporting portion 20 is rotatably coupled to the end portion of the main body 10 and is connected to the moving block 11 and has a link structure to be rotatable according to the movement of the moving block 11. [

To this end, the support portion 20 is composed of a first support frame 21, a second support frame 22, and a third support frame 23.

The first support frame 21 is connected to the angle measurement structure 30, and a footrest 24 capable of supporting the foot is coupled.

The first support frame 21 includes a connection frame 21a connected to the angle measurement structure 30 and symmetrical in the left and right direction and a connection frame 21a formed at both ends of the connection frame 21a, And a coupling frame 21b having a predetermined length along the longitudinal direction of the coupling frame 21b.

A foot plate 24 is attached to one end of the coupling frame 21b so that the feet are seated and adjustable in length and the calf pad 25 is attached to both sides of the coupling frame 21b to seat the calf.

Therefore, the body condition of adults and children can be easily adjusted according to the body of the rehabilitation patient.

One side of the second support frame 22 is rotatably connected to the other side of the first support frame 21 and the other side of the second support frame 22 is rotatably coupled to the main body 10.

One end of the third support frame 23 is rotatably coupled to the end of the first support frame 21 and the other end of the third support frame 23 is rotatably connected to the outer circumferential surface of the second support frame 22.

That is, a first auxiliary frame 23a, one end of which is coupled to the other end of the first support frame 21, and a second support frame 23a, one end of which is coupled with the other end of the first auxiliary frame 23a, And a second sub frame 23b coupled to an outer circumferential surface of the second sub frame 23b.

In addition, the first and second auxiliary frames 23a and 23b are coupled through link coupling, and the respective coupling parts are rotatable.

The third support frame 23 is connected to both sides of the first support frame 21 and the third support frame 23 is provided with a thigh pad 26 supporting the thigh.

The first supporting frame 21 is moved by the moving block 11 with the joining part of the main body 10 coupled to the second supporting frame 22 as a reference point, And the connecting portion of the second supporting frame 22 are moved up and down, and the angles of the first and second supporting frames 21 and 22 are changed.

The other end of the third support frame 23 descends when the other side of the first support frame 21 rises and the other end of the third support frame 23 rises when the other side of the first support frame 21 descends. So that the joint can rotate and support the thigh.

In addition, the support part 20 has a link structure, and the angle of rotation can be adjusted by moving up and down according to the movement of the moving block, so that the joint can be treated by fixing the treatment part of the rehabilitation patient.

The angular measurement structure 30 rotatably connects the moving block 11 and the supporting portion 20 and is capable of measuring an angle of change of the supporting portion 20 that rotates in accordance with the movement of the moving block .

Therefore, the angle measurement structure 30 is composed of a bracket 31, a joint portion 32, a frame linker 33, a measuring means 34, and a case 35 so as to measure an angle.

The bracket 31 includes a base 31a coupled to an upper end of the moving block 11, a support 31b protruding upward from the base 31a, And an insertion portion 31c formed in the lateral direction of the insertion portion 31a.

Here, the insertion portion 31c is formed laterally with respect to the longitudinal direction of the main body 10.

The joint portion 32 is inserted into the insertion portion 31c and a fastening groove 32a is formed therein.

Here, the joint portion 32 may be fixed by various methods such as screwing, fitting, or the like so as to prevent rotation and movement after being inserted into the insertion portion 31c, desirable.

The frame linker 33 is rotatably coupled to the joint portion 32, and the support portion 20 is connected.

The frame linker 33 includes a body 33a connected to the support portion 20 and an insertion hole 33c protruded from both ends of the side surface of the body 33a and into which the joint portion 32 is inserted And formed protrusions 33b.

Therefore, the joint part 32 can be smoothly rotated through the insertion hole 33c. For this purpose, the joint part 32 is relatively longer than the insertion part 31c, and the side surface of the protrusion part 33b As shown in Fig.

In this case, it is preferable that the joint portion 32 is selectively coupled to the insertion hole 33c so that the joint portion 32 rotates smoothly and prevents the joint portion 32 from being separated from the snap ring, the bush, and the bearing.

The measuring means 34 is coupled to the side surface of the frame linker 33 and has a sensor shaft 34a coupled to the engagement groove 32a.

A first screw groove 32b is formed on an outer circumferential surface of the joint portion 32. A fixing screw is engaged with the first screw groove 32b to fix the sensor shaft 34a to prevent arbitrary rotation of the sensor shaft 34a .

Therefore, the support portion 20 can rotate accurately with the measurement means 34 and accurately measure the change in the angle of the support portion 20 through the sensor shaft 34a fixed to the joint portion 32.

The case 35 is coupled to the frame linker 33 and formed on the outer surface to protect the bracket 31, the joint 32 and the measuring means 34 from exposure.

Here, the case 35 is formed as a pair, and is fastened to the frame link 33 through a screw connection after the upper and lower parts are fastened together.

The base 31a is exposed to the outside of the case 35 and is connected to the moving block 11. The case 35 is provided with interference with the bracket 31 when the support 20 rotates The cut-out portion 35a is formed.

The angle measuring structure 30 is connected to the first support frame 21 whose angle is changed for the first time according to the movement of the moving block 11 so that accurate angle measurement is possible and rotation is generated at one point, .

In addition, since the joint treatment is performed by being seated on the first support frame 21, the measurement angle of the rotating first support frame 21 can be used quickly without any additional data processing, and accurate angle measurement is possible.

Also, the space is efficiently used, and it is prevented from being unintentionally damaged or damaged during storage, movement and use without being exposed to the outside, and it is possible to support the load applied from the upper part.

The bracket 31 has a through hole 31d formed at the bottom of the case 35 from the bottom and a through hole 31d formed at the bottom of the bracket 31 through the through hole 31d, And a first connection line 40 to be discharged.

The first connection line 40 receives power and measured data from the measuring means 34.

The first connecting line 40 is connected to the measuring unit 34 and is discharged to the outside of the case 35 through the through hole 31d so that the wiring arrangement is neat. Movement of the moving block 11 prevents breakage such as twisting, disconnection, and the like, and can be easily replaced.

The bracket 31 may be spaced apart from the moving block 11 by a predetermined distance so that the first connecting line 40 is discharged to a lower portion of the bracket 31 or the moving block 11 or the bracket 31 The first connection line 40 may be formed with a groove to allow the first connection line 40 to be discharged to the outside.

Accordingly, the first connecting line 40 supplies electric power to the measuring unit 34 and receives data, and prevents the moving block 11 from being freely movable and being exposed to the outside, thereby preventing a problem of disconnection and twisting .

In addition, it is preferable that data measured by the measuring unit 34 is transmitted to the controller and the controller through the first connection line 40 so that the user can manipulate the rotation angle from the outside.

A first connector 41 connected to the first connection line 40 and protruding outwardly to either the moving block 11 or the bracket 31; And a second connector (43) formed to be in contact with the first connector (41) and to discharge the second connection line (42) to the outside of the main body.

It is preferable that the first connector 41 is formed on the side surface of the main body 10 and that when the moving block 11 is moved to contact the second connector 43, It is preferable that it is brought into close contact with the connector 43.

The second connector 43 is formed in a longitudinal direction at a position where the second connector 43 can contact with the movement of the first connector 41. The second connector 43 supplies power to the first connector 41, And the second connection line 42 is discharged to the outside so as to be provided to the controller.

In addition, the second connector 43 may be disposed in the longitudinal direction to be easily connected to the operation and control structures of the motor, the controller, the controller, and the like.

Accordingly, the first connection line 40 can be prevented from breakage such as disconnection and twisting by the movement of the moving block 11 and can be easily connected through the second connection line 42 discharged to the outside, Even if disconnection or twist in the exposed portion of the connection line 42 is broken, it can be easily replaced.

The first connector 41 and the second connector 43 are easily contacted with each other to prevent the first connection line 40 and the second connection line 42 from being damaged when repeatedly moved. Can be used.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined by the appended claims. It is obvious that you can do it.

10: main body 11: movable block
20: support part 21: first support frame
21a: connection frame 21b: coupling frame
22: second support frame 23: third support frame
23a: first auxiliary frame 23b: second auxiliary frame
24: foot plate 25: calf pad
26: thigh pad 30: angular measurement structure
31: Bracket 31a: Base
31b: support base 31c:
31d: through hole 32: joint part
32a: fastening groove 32b: first screw groove
33: frame linker 33a: body
33b: projecting portion 33c: insertion hole
34: Measuring means 34a: Sensor shaft
35: Case 35a:
40: first connection line 41: first connector
42: second connecting line 43: second connector

Claims

A main body 10 provided with a mobile block movable in the longitudinal direction by a power;
A supporting portion 20 rotatably coupled to the moving block 11 and the main body 10 and configured to be rotatable in accordance with the movement of the moving block 11;
And an angle measuring structure 30 which rotatably connects the moving block 11 and the supporting portion 20 and measures the angle of the supporting portion 20 rotating in accordance with the movement of the moving block 11 ,
The angle measuring structure (30)
A base 31a coupled to an upper end of the moving block 11 and a support base 31b protruding upward from the base 31a; A bracket 31 composed of an insertion portion 31c formed along the bracket 31,
A joint portion 32 inserted into the insertion portion 31c and having a coupling groove 32a formed therein,
A frame linker 33 rotatably coupled to the joint part 32 and to which the support part 20 is connected,
Measuring means 34 formed of a sensor shaft 34a coupled to a side surface of the frame linker 33 and coupled to the coupling groove 32a in the joint portion 32,
And a case 35 attached to the frame linker 33 and formed on the outer surface to protect the bracket 31, the joint portion 32 and the measuring means 34
The bracket 31 has a through hole 31d penetrating from the bottom to the inside of the case 35 and a through hole 31d which is coupled to the measuring means 34 and through the through hole 31d to the bottom of the bracket 31 And a first connection line (40) for discharging the knee joint.

delete

The method according to claim 1,
The support portion (20)
A first support frame 21 connected to the frame linker 33 and supporting the feet,
A second support frame 22 having one side rotatably coupled to the outer circumferential surface of the first support frame 21 and the other side rotatably coupled to the main body,
And a third support frame (23) having one end rotatably coupled to an end of the first support frame (21) and the other end rotatably connected to an outer circumferential surface of the second support frame (22) Rehabilitation exercise equipment for joints.

delete

The method according to claim 1,
A first connector 41 protruding from an outer surface of the moving block 11 and connected to the first connection line 40; a second connector 41 formed in the body 10 in the longitudinal direction, Further comprising a second connector (43) in contact with the second connector (42) and connected to a second connection line (42) exposed to the outside of the body (10).