KR20230055206A - Rehabilitation exercise equipment of knee joint - Google Patents

Abstract

In the rehabilitation exercise device 90 for a knee joint of the present invention, a thigh support 140 and a drive module 100 that rotates at a certain angle up and down are coupled to a first support frame 120 supported on the ground, and the drive module 100 Since the footrest 170 and the calf support 180 are combined with the length-adjustable second support frame 150 as a medium, the thigh support 140 fits the right and left feet while adjusting according to the length of the user's legs ), the footrest 170 and the calf support 180 are not only convenient to use by changing the direction, but also the base on the first support frame 120 of the rehabilitation exercise device 90 according to the user's lying posture. At the same time as the plate 200 is mounted, the wheel part 210 can be mounted on the second support frame 150 to increase the effect of knee joint rehabilitation in a stable posture, and the rehabilitation exercise device 90 according to the user's sitting posture. ) has the advantage of increasing the effect of knee joint rehabilitation exercise while adjusting the height by mounting the holder 230 on the first support frame 120.

Description

Rehabilitation exercise equipment for knee joint {REHABILITATION EXERCISE EQUIPMENT OF KNEE JOINT}

The present invention relates to a rehabilitation exercise device for a knee joint, and more particularly, a rehabilitation exercise device for a knee joint in which a user can easily perform knee joint rehabilitation exercise while adjusting the height by electric power in a lying or sitting position. It is about.

In the process of recovering joint tissues after surgery and procedures to treat various joint-related diseases such as total knee arthroplasty or anterior cruciate ligament restoration due to degenerative arthritis in the elderly, the growth of cells hardens the joint and reduces the range of motion of the joint. . Therefore, it is necessary to perform rehabilitation exercises to recover the range of motion of the joint after surgery.

Rehabilitation exercise can be performed by the patient himself, but due to pain or difficulty in exercise, it is performed with the help of a dedicated rehabilitation device. Patients who have difficulty walking for a long period of time due to joint surgery or procedure should be made to be in a state where they can try to walk without difficulty by gradually exercising their joints.

Gait ability can be improved when the movement of the hip joint, knee joint, and ankle joint is performed smoothly, and each of these joints is surrounded by soft cartilaginous joint membranes, muscles, and tendons. It is required to be able to impart effective movement to the elements.

Rehabilitation exercise equipment that has been used in the past due to such a need is good in that it can effectively improve walking ability by gradually recovering muscle strength by passive movement of joints by mechanically providing repetitive flexion and extension movements to joints. It is configured to exercise the joints by providing flexion and extension movements of bending and unfolding using a motorized link mechanism to the frame supporting the legs. Such rehabilitation exercise equipment is often referred to as continuous passive motion equipment (CPM, Continuous Passive Motion).

However, the structure of the frame part of the conventionally used CPM was too complicated.

In addition, although various CPM products currently on the market implement different patterns of motion for harmonic motion, there is no difference in design outwardly. Accordingly, the range of motion had almost the same problem.

In addition, there was a problem in that the bending angle of the mechanism and the actual angle of the knee could not be matched with the existing structure. That is, the bending angle of the human body is smaller than the bending angle of the instrument.

Therefore, a knee joint rehabilitation exercise device that can be used lying down or sitting to increase the user's convenience and the knee joint rehabilitation exercise effect has acted as an important factor.

Republic of Korea Patent Registration No. 10-0814744 (2008.03.12.)

An object of the present invention has been made in view of the existing problems, and the device is designed in the same form as a wearable robot, so that it is easy to match the bending angle of the user's knee with the bending angle of the device.

In addition, unlike existing products that can only be used lying down or sitting leaning on a bed, it can be used lying down or sitting leaning on a bed, as well as sitting on a chair or sofa when combined with a cradle, and can be adjusted according to the length of the user's legs. Knee joint rehabilitation that enhances the effectiveness of knee joint rehabilitation exercise and ease of use by adjusting the height and separation/combination of the cradle according to the user's lying or sitting posture. To provide exercise equipment.

A knee joint rehabilitation exercise device according to an embodiment of the present invention for solving the above technical problems includes a driving module; a first support frame coupled to one side of the driving module via a hinge bracket and supporting the driving module to rotate up and down; A first connection part installed to be attached and detached from the end of the first support frame; a thigh support coupled to one side of the first support frame to be moved along the length of the first support frame and converted to a left or right side; A second support frame coupled to the other side of the driving module to be adjustable in length; A second connection part fixed to the end of the second support frame and supporting the footrest to be switched to the left or right side; and a calf support coupled to one side of the second support frame so as to be moved along the length of the second support frame and converted to the left or right side.

As another embodiment, one end of the first connection part of the present invention is coupled by a first knob bolt passing through one end of the first support frame and reaching one end of the first connection part. A connection groove is formed at the other end of the base plate into which the connection shaft portion of the base plate in contact with the ground is inserted, and the connection shaft portion penetrates one side of the other end of the first connection portion to reach the connection groove. characterized in that they are combined.

As another embodiment, one end of the thigh support of the present invention is coupled with a pair of upper and lower first fixing blocks disposed on the upper and lower surfaces of the left or right side of the length side of the first support frame, The first fixing block may be tightly fixed to the first support frame while a gap therebetween is narrowed by a third knob bolt fastened to one side of the first fixing block.

As another embodiment, the second support frame of the present invention, fixed to the other side of the driving module fixed member of a certain length; a movable member of a certain length that is slidably inserted into the interior through an end of the fixing member; and a fourth knob bolt fixed to the movable member by passing through one end of the fixing member.

As another embodiment, the second connection portion of the present invention, the fitting hole into which the connecting rod of the footrest is inserted into the side; a plurality of fifth knob bolts reaching the fitting holes on an upper surface and being fixed to the connecting rod; A plurality of support ring parts into which one side of the wheel part is inserted into the lower surface; and a sixth knob bolt fixed to one side of the wheel unit by penetrating one side of the circumference of the support ring unit.

As another embodiment, it is characterized in that a bent portion bent at a right angle is formed at one end of the footrest of the present invention, and the connecting rod is fixed to the bent portion so as to be higher than the height of the footrest.

As another embodiment, the wheel portion of the present invention, the wheel shaft connecting the two wheels in contact with the ground; A connection ring fitted around one side of the wheel shaft; It is characterized in that it comprises; a plurality of support rods fixed upwardly to one side of the outer circumference of the connection ring and inserted and fixed into the plurality of support rings.

As another embodiment, a pair of upper and lower second fixing blocks disposed on the upper and lower surfaces of the left or right side of the length of the fixing member are coupled to one end of the calf support of the present invention, and the pair of upper and lower second fixing blocks are coupled. The second fixing block is characterized in that it is tightly fixed to the fixing member while a gap therebetween is narrowed by a seventh knob bolt fastened to one side of the second fixing block.

As another embodiment, the first support frame of the present invention is characterized in that a cradle for supporting the user to sit and use the rehabilitation exercise equipment is installed to be detachable.

As another embodiment, the cradle of the present invention, the base frame supported on the ground; and a main shaft coupled to the base frame to be height-adjustable in a vertical direction, wherein the main shaft includes a fixing plate coupled to one side of an upper surface of a plurality of base rails on the base frame side; a first shaft coupled to an upper center of the fixing plate; a second shaft coupled to an upper portion of the first shaft to adjust the height of the main shaft; and a connecting link installed on the upper end of the second shaft to support detachably from one side of the first support frame.

As another embodiment, the connection link of the present invention, the support block disposed on top of the second shaft; a fastening bolt that passes through the upper center of the support block and is fastened to the upper center of the second shaft; a plurality of support rods coupled between an upper surface of the second shaft and a lower surface of the support block with the fastening bolt at the center; a plurality of support blocks fixed to both ends of the support bar and selectively fitted around one side of the first support frame; and a knob bolt fastened to an open end of the support block to tightly fix the support block to the first support frame.

As another embodiment, it is characterized in that the main shaft can slide forward and backward along the base rail and be fixed.

The knee joint rehabilitation exercise device of the present invention is coupled with a thigh support and a drive module that rotates at a certain angle up and down to a first support frame supported on the ground, and a foot support through a second support frame capable of adjusting the length of the drive module Since the structure is combined with a calf support and a calf support, it is convenient to use the thigh support, foot support, and calf support can be changed according to the right foot and left foot while adjusting according to the length of the user's leg. Accordingly, the base plate is attached to the first support frame of the rehabilitation exercise device and the wheel part is attached to the second support frame at the same time to increase the effect of knee joint rehabilitation exercise in a stable posture, or the rehabilitation exercise device according to the user's sitting posture. There is an advantage in that the effect of knee joint rehabilitation exercise can be increased while adjusting the height by attaching a cradle to the first support frame.

1 is a front perspective view showing a rehabilitation exercise device for a knee joint according to a first embodiment of the present invention.
Figure 2 is a rear perspective view showing a rehabilitation exercise device for a knee joint according to a first embodiment of the present invention.
Figure 3 is a front perspective view showing a knee joint rehabilitation exercise device according to a second embodiment of the present invention.
Figure 4 is a rear perspective view showing a knee joint rehabilitation exercise device according to a second embodiment of the present invention.

Hereinafter, in order to fully understand the present invention, a preferred embodiment of the present invention will be described with reference to the accompanying drawings 1 to 4. Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the examples described in detail below. Therefore, the shapes of elements in the drawings may be exaggerated to emphasize a clearer description. It should be noted that in each drawing, the same configuration may be indicated by the same reference numerals. Detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention are omitted.

1 and 2, the knee joint rehabilitation exercise device 90 according to an embodiment of the present invention includes a drive module 100, a first support frame 120, a first connection part 130, and a thigh support. 140, the second support frame 150, the second connection portion 160, the footrest 170, the calf support 180, the base plate 200, the wheel portion 210, and the cradle 230. .

That is, the drive module 100 rotates up and down at a certain angle based on the first support frame 120 as a support base by driving a drive motor (not shown) installed therein, respectively. The driving motor is configured to be controlled by various control circuits such as a main PCB and a noise filter.

The first support frame 120 is coupled to one side of the drive module 100 via a hinge bracket 110 to support the drive module 100 so as to rotate up and down, and the user lies down and uses a rehabilitation exercise device 90 ) Is coupled to the base plate 200 through the first connection portion 130 so that the user can use it, and is supported on the ground or installed to be detachable from the cradle 230 so that the user can sit and use the rehabilitation exercise device 90 supported on the ground

The first connection part 130 is installed at the end of the first support frame 120 to be adjustable in length and detachable.

That is, one end of the first connection part 130 is coupled by a first knob bolt 132 passing through one end of the first support frame 120 and reaching one end of the first connection part 130. And, at the other end of the first connection part 130, a connection groove 131 into which the connection shaft part 202 of the base plate 200 in contact with the ground is inserted is formed, and the connection shaft part 202 is the first connection part They are coupled by a plurality of second knob bolts 133 passing through one side of the other end of 130 and reaching the connection groove 131 .

Here, the base plate 200 is coupled to the first connection part 130 only when the user uses the rehabilitation exercise machine 90 in a lying position, and the rehabilitation exercise machine 90 is placed on the cradle 230. When used in a sitting position, it is removed from the first connection part 130.

The thigh support 140 is coupled to one side of the first support frame 120 so as to move along the length of the first support frame 120 and to be converted to the left or right side to seat the thigh of the user's left or right foot. role it can play.

That is, a pair of upper and lower first fixing blocks 141 disposed on the upper and lower surfaces of the left or right side of the length side of the first support frame 120 are coupled to one end of the thigh support 140, The pair of first fixing blocks 141 are tightly fixed to the first support frame 120 while the gap between them is narrowed by the third knob bolt 142 fastened to one side of the first fixing block 141. do.

The second support frame 150 is coupled to the other side of the driving module 100 to be adjustable in length.

That is, the second support frame 150 is fixed to the other side of the drive module 100 and includes a fixed member 151 having a predetermined length; A movable member 152 having a certain length that is slidably inserted into the inside through the end of the fixing member 151; and a fourth knob bolt 153 fixed to the movable member 152 by passing through one end of the fixing member 151 .

The second connection part 160 is fixed to the end of the movable member 152 on the side of the second support frame 150 and serves to support the footrest 170 to be switched to the left or right side.

That is, the second connection part 160, the fitting hole 161 into which the connecting rod 172 of the footrest 170 is inserted on the side; a plurality of fifth knob bolts 162 reaching the fitting holes 161 on the upper surface and being fixed to the connecting rod 172; A plurality of support ring parts 163 into which one side of the wheel part 210 is inserted into the lower surface; and a sixth knob bolt 164 passing through one side of the circumference of the support ring part 163 and fixed to one side of the wheel part 210 .

At this time, a bent portion 171 bent at right angles is formed at one end of the footrest 170, and the connecting rod 172 is fixed to the bent portion 171 so as to be higher than the height of the footrest 170 .

The calf support 180 is coupled to one side of the fixing member 151 on the second support frame 150 side so as to move along the length of the second support frame 150 and switch to the left or right side, so that the user's left foot Or, it plays a role in stabilizing the calf of the right foot.

That is, a pair of upper and lower second fixing blocks 181 disposed on the upper and lower surfaces of the left or right side of the length side of the fixing member 151 are coupled to one end of the calf support 180, and the upper and lower pair The second fixing block 181 is tightly fixed to the fixing member 151 while the gap between the second fixing block 181 is narrowed by the seventh knob bolt 182 fastened to one side of the second fixing block 181 .

The wheel part 210 includes a wheel shaft 211 connecting two wheels in contact with the ground; A connection ring 212 fitted around one side of the wheel shaft 211; A plurality of support rods 213 fixed upwardly to one side of the outer circumference of the connection ring 212 and inserted into and fixed to the plurality of support ring parts 163;

Here, the wheel part 210 is coupled to the second connection part 160 only when the user uses the rehabilitation exercise machine 90 in a lying position, and the rehabilitation exercise machine 90 is placed on the cradle 230. When used in a sitting posture, it is removed from the second connection part 160.

The cradle 230 includes a base frame 300 supported on the ground; And a main shaft 400 coupled to the base frame 300 to be height-adjustable in the vertical direction; the main shaft 400 includes a plurality of base rails 310 on the base frame 300 side A fixed plate 410 coupled to one side of the upper surface of the; a first shaft 420 coupled to the upper center of the fixing plate 410 and accommodating an actuator (not shown) therein; a second shaft 430 coupled to an upper portion of the first shaft 420 and adjusting the height of the main shaft 400 while moving up and down by the actuator; and a connecting link 440 installed at an upper end of the second shaft 430 and detachably supporting one side of the first support frame 120 .

At this time, the main shaft 400 can slide forward and backward along the base rail 310 and be fixed.

In addition, the base frame 300, a plurality of base rails 310 in contact with the ground to support the load and the center of gravity applied during use; A moving part 320 made of wheels installed at one end of the plurality of base rails 310 to be easily moved and fixed; and a gripper 330 fixed to the other side of the plurality of base rails 310 and capable of grabbing and moving.

It is preferable that the moving unit 320 has a generally used configuration in which a device capable of fixing wheels is formed.

It is preferable that the gripping part 330 is made convenient for a person to hold and move.

In addition, the main shaft 400 includes a fixing plate 410 coupled to one side of the upper surface of the plurality of base rails 310 on the base frame 300 side; a first shaft 420 coupled to the upper center of the fixing plate 410 and accommodating an actuator (not shown) therein; a second shaft 430 coupled to an upper portion of the first shaft 420 and adjusting the height of the main shaft 400 while moving up and down by the actuator; and a connection link 440 installed at an upper end of the second shaft 430 and detachably supporting one side of the first support frame 120 .

At this time, the second shaft 430 is guided along the inside of the first shaft 420 by the operation of the actuator and ascends or descends to adjust its height.

The connection link 440 includes a support block 441 disposed at an upper end of the second shaft 430; A fastening bolt 442 passing through the upper center of the support block 441 and fastened to the upper center of the second shaft 430; a plurality of support rods 443 coupled between the upper surface of the second shaft 430 and the lower surface of the support block 441 with the fastening bolt 442 at the center; a plurality of support blocks 444 fixed to both ends of the support bar 443 and selectively fitted around one side of the first support frame 120; and a knob bolt 445 fastened to an open end of the support block 444 to tightly fix the support block 444 to the first support frame 120 .

Here, the cradle 230 is coupled to the first support frame 120 only when the user uses the rehabilitation exercise machine 90 in a sitting position, and when using the rehabilitation exercise machine 90 in a lying position, the first support frame 120 is used. 1 is removed from the support frame 120.

In this way, the knee joint rehabilitation exercise device 90 of the present invention is coupled to the thigh support 140 and the drive module 100 that rotates at a certain angle up and down to the first support frame 120 supported on the ground, driving Since the footrest 170 and the calf support 180 are coupled to the module 100 through the second support frame 150 whose length is adjustable, the thigh is adjusted according to the length of the user's leg and the right foot and left foot are combined. The first support frame 120 of the rehabilitation exercise device 90 according to the user's lying position, as well as the convenience of use by being able to change the direction of the support 140, the foot support 170, and the calf support 180. At the same time as the base plate 200 is mounted on the base plate 200, the wheel part 210 is mounted on the second support frame 150 to increase the effect of knee joint rehabilitation exercise in a stable posture, and rehabilitation exercise according to the user's sitting posture By mounting the holder 230 on the first support frame 120 of the mechanism 90, there is an advantage in that the effect of knee joint rehabilitation exercise can be increased while adjusting the height.

On the other hand, the present invention is not limited to the above-described embodiments, but can be practiced with modifications and variations within the scope of the present invention, and the technical idea to which such modifications and variations are applied also falls within the scope of the following claims. Must see.

90: rehabilitation exercise device 100: drive module
110: hinge bracket 120: first support frame
130: first connection part 131: connection groove
132: first knob bolt 133: second knob bolt
140: thigh support 141: first fixing block
142: third knob bolt 150: second support frame
151: fixed member 152: moving member
153: fourth knob bolt 160: second connection part
161: fitting hole 162: fifth knob bolt
163: support ring 164: sixth knob bolt
170: footrest 171: bent part
172: connecting rod 180: calf support
181: second fixing block 182: seventh knob bolt
200: base plate 202: connecting shaft
210: wheel part 211: wheel axle
212: connecting ring 213: support bar
214: eighth knob bolt 230: cradle
300: base frame 310: base rail
320: moving part 330: gripping part
400: main shaft 410: fixed plate
420: first shaft 430: second shaft
440: connection link 441: support block
442: fastening bolt 443: support bar
444: support block 445: knob bolt

Claims (12)

driving module 100;
A first support frame 120 coupled to one side of the driving module 100 via a hinge bracket 110 to support the driving module 100 to rotate up and down;
A first connection part 130 installed at the end of the first support frame 120 to be adjustable in length and detachable;
a thigh support 140 coupled to one side of the first support frame 120 to be moved along the length of the first support frame 120 and converted to a left or right side;
A second support frame 150 coupled to the other side of the driving module 100 to be adjustable in length;
A second connection part 160 fixed to an end of the second support frame 150 and supporting the footrest 170 to be switched to the left or right side; and
A calf support 180 coupled to one side of the second support frame 150 to be moved along the length of the second support frame 150 and converted to the left or right side; for a knee joint comprising a rehabilitation equipment. The method of claim 1,
One end of the first connection part 130 is coupled by a first knob bolt 132 passing through one end of the first support frame 120 and reaching one end of the first connection part 130,
At the other end of the first connection part 130, a connection groove 131 into which the connection shaft part 202 of the base plate 200 in contact with the ground is inserted is formed,
The connecting shaft portion 202 is for a knee joint, characterized in that coupled by a plurality of second knob bolts 133 reaching the connecting groove 131 through one side of the other end of the first connecting portion 130. rehabilitation equipment. The method of claim 1,
At one end of the thigh support 140, a pair of upper and lower first fixing blocks 141 disposed on the upper and lower surfaces of the left or right side of the length side of the first support frame 120 are coupled,
The pair of upper and lower first fixing blocks 141 come into close contact with the first support frame 120 while the gap between them is narrowed by the third knob bolt 142 fastened to one side of the first fixing block 141. Rehabilitation exercise equipment for the knee joint, characterized in that fixed. The method of claim 1,
The second support frame 150,
a fixing member 151 fixed to the other side of the driving module 100 and having a certain length;
A movable member 152 having a certain length that is slidably inserted into the inside through the end of the fixing member 151; and
A fourth knob bolt 153 passing through one end of the fixing member 151 and fixed to the movable member 152; Rehabilitation exercise equipment for a knee joint comprising a. The method of claim 4,
The second connection part 160,
Fitting hole 161 into which the connecting rod 172 of the footrest 170 is inserted on the side;
a plurality of fifth knob bolts 162 reaching the fitting holes 161 on the upper surface and being fixed to the connecting rod 172;
A plurality of support ring parts 163 into which one side of the wheel part 210 is inserted into the lower surface; and
A sixth knob bolt (164) passing through one side of the circumference of the support ring part (163) and fixed to one side of the wheel part (210); The method of claim 5,
A bent portion 171 bent at a right angle is formed at one end of the footrest 170,
Rehabilitation exercise equipment for a knee joint, characterized in that the connecting rod (172) is fixed upward to the height of the footrest (170) to the bent portion (171). The method of claim 5,
The wheel part 210,
A wheel shaft 211 connecting two wheels in contact with the ground;
A connection ring 212 fitted around one side of the wheel shaft 211;
A plurality of support rods 213 fixed upwardly to one side of the outer circumference of the connection ring 212 and inserted and fixed into the plurality of support ring parts 163; Rehabilitation exercise equipment for a knee joint comprising a. The method of claim 4,
At one end of the calf support 180, a pair of upper and lower second fixing blocks 181 disposed on the upper and lower surfaces of the left or right side of the length side of the fixing member 151 are coupled,
The pair of upper and lower second fixing blocks 181 are tightly fixed to the fixing member 151 while the gap between them is narrowed by the seventh knob bolt 182 fastened to one side of the second fixing block 181. Rehabilitation exercise equipment for the knee joint, characterized in that. The method of claim 1,
Rehabilitation exercise equipment for knee joints, characterized in that the cradle 230 for supporting the user to sit and use the rehabilitation exercise equipment 90 is detachably installed on the first support frame 120. The method of claim 9,
The cradle 230,
Base frame 300 supported on the ground; and
A main shaft 400 coupled to the base frame 300 in a height-adjustable direction in a vertical direction;
The main shaft 400,
A fixing plate 410 coupled to one side of the upper surface of the plurality of base rails 310 on the base frame 300 side;
A first shaft 420 coupled to the upper center of the fixing plate 410;
a second shaft 430 coupled to the upper part of the first shaft 420 and adjusting the height of the main shaft 400 while moving up and down; and
Rehabilitation exercise equipment for a knee joint, characterized in that it comprises a; connecting link 440 installed on the upper end of the second shaft 430 to support detachably from one side of the first support frame 120. The method of claim 10,
The connection link 440,
a support block 441 disposed at an upper end of the second shaft 430;
A fastening bolt 442 passing through the upper center of the support block 441 and fastened to the upper center of the second shaft 430;
a plurality of support rods 443 coupled between the upper surface of the second shaft 430 and the lower surface of the support block 441 with the fastening bolt 442 at the center;
a plurality of support blocks 444 fixed to both ends of the support bar 443 and selectively fitted around one side of the first support frame 120; and
A knob bolt 445 fastened to the open end of the support block 444 to closely fix the support block 444 to the first support frame 120; . The method of claim 10,
Rehabilitation exercise equipment for a knee joint, characterized in that the main shaft 400 can slide forward and backward along the base rail 310 and be fixed.

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