CN215535377U

CN215535377U - Adjustable orthopedic device

Info

Publication number: CN215535377U
Application number: CN202121532392.8U
Authority: CN
Inventors: B·格莱斯特; J·潘赞贝克; J·萧恩; C·卡瓦哈拉; 杨书文; 马建华; 吴钧
Original assignee: Cadence Biomedical Inc
Current assignee: Cadence Biomedical Inc
Priority date: 2021-05-17
Filing date: 2021-07-06
Publication date: 2022-01-18
Anticipated expiration: 2031-07-06

Abstract

The utility model relates to an adjustable orthosis, which comprises a waist support, a waist turntable power-assisted assembly, a ball head connecting assembly, a support assembly, a foot plate assembly, an energy conversion mechanism and a leg strap connected with the support assembly. The waist holds in the palm and is connected with the bracket component upper end through waist carousel helping hand subassembly and bulb coupling assembling, and the bracket component lower extreme is connected with the sole subassembly. The waist turntable power-assisting assembly and the foot plate assembly are further connected through an energy conversion mechanism. The bracket component is formed by sequentially connecting a thigh bracket, a knee joint connecting device and a shank bracket. The energy conversion mechanism comprises an upper traction rope, a lower traction rope, an elastic energy storage device and a knee guide shaft device fixed with the knee joint connecting device. The utility model has the advantages that: the limb is attached more closely with wearing, so that the stress of the supporting structural part is uniform, the service life is prolonged, the assisting force can be adjusted in time according to the condition of a patient, and the limb-wearing device is more suitable for the patient after discharge.

Description

Adjustable orthopedic device

Technical Field

The utility model relates to the technical field of rehabilitation exercise devices, in particular to an adjustable lower limb rehabilitation exercise device with a mechanical exoskeleton.

Background

Lower limb rehabilitation exercises are commonly used by patients whose legs have lost some or all of their function. The lower limb rehabilitation exerciser can be used for controlling and guiding the lower limb to move along a given direction, can reduce the bearing force, can help patients with limited post-stroke step state, patients with stroke or fracture patients with recoverable gait disorder (such as foot drop) to carry out rehabilitation training after the fixing dressing is removed, can help the patients to move more easily or reduce the pain of the patients, so that the wearer can walk for a longer time, and the fatigue of the wearer is relieved. Most of the existing lower limb rehabilitation exercise machines have the advantages of universal specification, adjustable height, complex structure, high price and heavy weight, and because patients still need to train for a long time after hospital treatment, the matching degree of the existing lower limb rehabilitation exercise machines (patent number: ZL 201710686342.7) and the patients after discharge is not ideal.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides a multi-specification adjustable orthosis for individual use, which comprises a waist support, a waist turntable power-assisted assembly, a ball head connecting assembly, a support assembly, a foot plate assembly, an energy conversion mechanism and a leg strap, wherein the waist turntable power-assisted assembly is connected with the waist support through a power transmission mechanism; the waist support is connected with the upper end of the support assembly through a waist turntable power-assisted assembly and a ball head connecting assembly, and the lower end of the support assembly is connected with the foot plate assembly; the waist turntable power-assisting assembly and the foot plate assembly are also connected through an energy conversion mechanism; the leg strap is connected with the bracket component;

the bracket component is formed by sequentially connecting a thigh bracket, a knee joint connecting device and a shank bracket;

the energy conversion mechanism comprises an upper section traction rope, a lower section traction rope, an elastic energy storage device and a knee guide shaft device; the knee guide shaft device is formed by fixedly connecting a knee guide shaft device guide column with a knee guide shaft device bearing, and a knee guide shaft device bearing groove is formed in the knee guide shaft device bearing; the knee guide shaft device guide column is fixed at the rotary connection position of the knee joint connecting device; the upper end of the elastic energy storage device passes through an upper section traction rope penetrating through a bearing groove of the knee guide shaft device and a turntable of the waist turntable power-assisted assembly, and the lower end of the elastic energy storage device passes through a lower section traction rope and penetrates through a lower guide wheel on the foot plate assembly to be connected with a lower wheel on the foot plate assembly.

The thigh support is of a broken line structure and is formed by sequentially fixing a first length of the thigh support, a second length of the thigh support, a third length of the thigh support, a fourth length of the thigh support and a fifth length of the thigh support; the upper end of the thigh support in the first length is fixedly connected with the ball head connecting assembly, and the lower end of the thigh support in the fifth length is fixedly connected with the knee joint connecting device; the first length of the thigh support and the second length of the thigh support form a first included angle, the second length of the thigh support and the third length of the thigh support form a second included angle, and the first included angle is equal to the second included angle; the third length of the thigh support and the fourth length of the thigh support form a third included angle, the fourth length of the thigh support and the fifth length of the thigh support form a fourth included angle, and the third included angle is equal to the fourth included angle.

The shank support is of a broken line structure and is formed by sequentially fixing a first section of the shank support, a second section of the shank support and a third section of the shank support; the upper end of the first section of the shank support is fixedly connected with the knee joint connecting device, and the lower end of the third section of the shank support is fixedly connected with the foot plate component; the first section of the shank support and the second section of the shank support form a fifth included angle, the second section of the shank support and the third section of the shank support form a sixth included angle, and the fifth included angle is equal to the sixth included angle.

And a thigh support adjusting part is arranged at the lower end of the fifth length of the thigh support and is fixedly connected with the knee joint connecting device.

The upper end of the first section of the shank support is provided with a shank support adjusting part which is fixedly connected with the knee joint connecting device.

The range of the first included angle and the second included angle is 120-170 degrees.

The third included angle and the fourth included angle range from 120 degrees to 170 degrees.

The range of the fifth included angle and the sixth included angle is 120-170 degrees.

The foot plate assembly comprises a lower wheel, a lower guide wheel, a foot plate connecting block and a foot plate; the foot plate is fixedly connected with the lower end of the shank bracket through a foot plate connecting block; the lower guide wheel is formed by fixedly connecting a lower guide wheel column with a lower guide wheel bearing; the lower guide wheel is fixedly connected to the outer side of the foot plate connecting block through a lower guide wheel column; a lower guide wheel groove is formed in the periphery of the lower guide wheel, and the minimum bottom diameter of the lower guide wheel groove is 16 mm; the lower wheel is fixedly connected to the outer side of the foot plate connecting block through a cylindrical pin, and a lower wheel groove is formed in the periphery of the lower wheel.

The minimum bottom diameter of the bearing groove of the knee guide shaft device is 16 mm.

The utility model has the beneficial effects that: with wearing the limb laminating inseparabler, make bearing structure spare, the atress of bulb coupling assembling, bracket component and sole subassembly is even promptly, prolonged life, can in time adjust the helping hand size according to the patient's condition moreover, more be fit for the patient after the hospital discharges. Storing energy and providing better support and control for the patient during the support phase of gait; during the swing phase of gait, the energy stored before is released to provide assistance, the pelvis, the hip, the knee and the ankle joint are naturally promoted to be linked, the walking movement track of the lower limb is normalized, and therefore the correction gait is improved, and the mobility of a patient is improved.

Drawings

FIG. 1: is a schematic three-dimensional structure of the utility model;

FIG. 2: is a partial three-dimensional structure schematic diagram of the utility model;

FIG. 3: a schematic view of a connection structure of the waist turntable power-assisting assembly and the ball head connecting assembly is shown;

FIG. 4: is a three-dimensional structure schematic diagram of the bracket component;

FIG. 5: is a plane structure schematic diagram of the bracket component;

FIG. 6: is a schematic three-dimensional structure of the foot plate component;

FIG. 7: the structure of the present invention is schematically shown on both sides.

Reference numerals: 1 waist support, 2 waist turntable power-assisted components, 21 pawls, 22 ratchets, 23 turntables, 24 guard plates, 25 connecting rods, 26 turntable grooves, 3 ball head connecting components, 31 connecting heads, 32 ball head connecting rods, 33 ball head connecting rods, 34 adjusting studs, 35 fixing connecting blocks, 4 bracket components, 41 thigh brackets, 411 thigh bracket first length, 412 thigh bracket second length, 413 thigh bracket third length, 414 thigh bracket fourth length, 415 thigh bracket fifth length, 416 thigh bracket adjusting parts, 42 knee joint connecting devices, 43 shank brackets, 431 shank bracket first section, 432 shank bracket second section, 433 shank bracket third section, 434 shank bracket adjusting parts, 5 foot plate components, 51 lower wheels, 52 lower guide wheels, 521 lower guide wheel columns, 522 lower guide wheel bearings, 53 foot plate connecting blocks, 54 foot plates, 55 lower guide wheel grooves, 56 lower wheel grooves, 57 lower wheel fixing block, 58 limit screw, 59 limit spring, 6 energy conversion mechanism, 61 upper segment hauling rope, 62 lower segment hauling rope, 63 elastic energy storage device, 64 knee guide shaft device, 641 knee guide shaft device guide column, 642 knee guide shaft device bearing, 643 knee guide shaft device bearing groove, 71 thigh strap, 72 shank strap, 1 first included angle, 2 second included angle, 3 third included angle, 4 fourth included angle, 5 fifth included angle, and 6 sixth included angle.

Detailed Description

The conception, the specific structure and the technical effects of the present invention will be further described in conjunction with the accompanying drawings so as to fully understand the objects of the present invention.

Referring to fig. 1-7, the utility model provides an adjustable orthosis, which comprises a waist support 1, a waist turntable power assisting assembly 2, a ball head connecting assembly 3, a bracket assembly 4, a foot plate assembly 5, an energy conversion mechanism 6, a thigh strap 71 and a shank strap 72. Waist holds in palm 1 and is connected with the upper end of bracket component 4 through waist carousel helping hand subassembly 2 and bulb coupling assembling 3, and the lower extreme and the sole subassembly 5 of bracket component 4 are connected. The waist turntable power-assisting assembly 2 and the foot plate assembly 5 are further connected through an energy conversion mechanism 6. The thigh strap 71 and the shank strap 72 are connected with corresponding parts of the bracket component 4 and used for being fixed with wearing limbs. As shown in FIG. 7, the present invention can be worn on one side or both sides simultaneously.

The waist turntable power assisting assembly 2 is used for providing an upward lifting assisting force for feet and structurally comprises a pawl 21, a ratchet wheel 22, a turntable 23, a guard plate 24 and a connecting rod 25. The axes of the rotating disc 23 and the ratchet wheel 22 are connected through a shaft hole fixed on the connecting rod 25 through a rotating shaft. The pawl 21 is fixed at the top end of the connecting rod 25, and the pawl 21 is matched with the ratchet wheel 22. When the ratchet wheel 22 rotates in the counterclockwise direction (the reverse direction shown in the joint of fig. 3), the upper traction rope 61 is tightened, and a lifting force is generated relative to the sole under the action of the spring 63; when the pawl 21 is depressed, the pawl disengages from the ratchet gear which is rotated in a clockwise direction (as indicated by the arrow in figure 3) by the action of the spring 63. The connecting rod 25 is connected with the waist support 1, and the lower end of the connecting rod 25 is rotatably connected with the ball head connecting assembly 3. A groove 26 for winding the rotary disc 23 of the upper traction rope 61 is formed in the periphery of the rotary disc 23; the guard plate 24 is disposed outside the turntable 23 to protect the turntable 23.

The ball head connecting assembly 3 is used as a movable joint between the connecting rod 25 and the bracket assembly 4, and structurally comprises a connecting head 31, a ball head connecting rod 32, a ball head seat connecting rod 33, an adjusting stud 34 and a fixed connecting block 35. The upper end of the connecting head 31 is rotatably connected with the lower end of a connecting rod 25 of the waist turntable power assisting assembly 2, and the fixed connecting block 35 is fixedly connected with the upper end of the thigh support 4. The lower end of the connector 31 is connected with a fixed connecting block 35 through a ball head connecting rod 32, a ball head seat connecting rod 33 and an adjusting stud 34 in sequence.

The bracket assembly 4 is used for supporting the thigh and is formed by sequentially connecting a thigh bracket 41, a knee joint connecting device 42 and a shank bracket 43. Bracket component 4 can be better with wear the limb laminating for the atress on bracket component 4 is more even, has prolonged bracket component 4's life. Meanwhile, as the bracket component 4 is an assembled structure, the most suitable thigh bracket and shank bracket can be selected according to the length of the thigh and shank of the patient. The maintenance of the bracket component 4 is more convenient and quicker. The thigh support 41 is a broken line structure and is formed by sequentially fixing a thigh support first section 411, a thigh support second section 412, a thigh support third section 413, a thigh support fourth section 414 and a thigh support fifth section 415. The upper end of the first thigh support section 411 is fixedly connected with the fixed connecting block 35, a thigh support adjusting part 416 arranged at the lower end of the fifth thigh support section 415 is fixedly connected with the knee joint connecting device 42, and the thigh support adjusting part 416 can be adjusted according to the thigh length of a patient. The first thigh support section 411 and the second thigh support section 412 form a first included angle < 1 >, the second thigh support section 412 and the third thigh support section 413 form a second included angle < 2, and the first included angle < 1 > is equal to the second included angle < 2. The third segment 413 of the thigh support and the fourth segment 414 of the thigh support form a third included angle < 3 >, the fourth segment 414 of the thigh support and the fifth segment 415 of the thigh support form a fourth included angle < 4 >, and the third included angle < 3 > is equal to the fourth included angle < 4. The shank support 43 is of a broken line structure and is formed by sequentially fixing a shank support first section 431, a shank support second section 432 and a shank support third section 433. A calf support adjusting part 434 arranged at the upper end of the first section 431 of the calf support is fixedly connected with the knee joint connecting device 42, the calf support adjusting part 434 can be adjusted according to the calf length of a patient, and the lower end of the third section 433 of the calf support is fixedly connected with the foot plate component 5. The first section 431 of the shank support and the second section 432 of the shank support form a fifth included angle of 5, the second section 432 of the shank support and the third section 433 of the shank support form a sixth included angle of 6, and the fifth included angle of 5 is equal to the sixth included angle of 6.

The foot plate assembly 5 includes a lower wheel 51, a lower guide wheel 52, a foot plate connecting block 53 and a foot plate 54. The foot plate 54 is fixedly connected with the third section 433 of the lower leg support through a foot plate connecting block 53. The lower guide wheel 52 is fixedly connected to the upper end of the foot plate connecting block 53 through a lower guide wheel column 521 and a lower guide wheel bearing 522, and the outer surface of the lower guide wheel bearing 522 is coated with nylon. The lower guide wheel 52 is fixedly connected to the outer side of the middle part of the foot plate connecting block 53 through a lower guide wheel column 521. The periphery of the lower guide wheel 52 is provided with a lower guide wheel groove 55, and in order to prevent the traction rope from being broken easily, the bottom diameter of the lower guide wheel groove 55 is 16mm at least. The lower wheel 51 is fixedly connected to the outer side of the foot plate connecting block 53 through a cylindrical pin, a lower wheel groove 56 is formed in the periphery of the lower wheel 51, and a lower wheel fixing block 57 is further arranged on the lower wheel. In order to adjust the foot plate to different inclination angles according to the condition of a patient, a limit screw 58 can be additionally arranged, the foot plate 54 is adjusted to a required inclination angle through the limit screw 58, and a limit spring 59 can be arranged around the limit screw 58 in order to prevent the limit screw 58 from falling down by itself.

The energy conversion mechanism 6 includes an upper pulling rope 61, a lower pulling rope 62, an elastic energy storage device 63, and a knee guide shaft device 64, and the elastic energy storage device 63 in this embodiment is a spring. In order to make the traction rope slide more smoothly and not easily break at the knee guide shaft device 64, the knee guide shaft device 64 is formed by fixedly connecting a knee guide shaft device guide post 641 to a knee guide shaft device bearing 642, and the outer surface of the knee guide shaft device bearing is coated with nylon. A knee guide shaft device bearing groove 643 is provided in the knee guide shaft device bearing 642, and a bottom diameter of the knee guide shaft device bearing groove 643 is 16mm at the minimum. The knee guide shaft device guide posts 641 are fixed at the pivotal connection of the knee joint connecting device 42. The upper end of the elastic energy storage device 63 is connected to the turntable 23 by an upper pulling string 61 passing through the knee guide shaft device bearing groove 643, and the upper pulling string 61 is disposed in the turntable groove 26. The lower end of the elastic energy storage device 63 is connected with the lower wheel fixing block 57 through a lower traction rope 62 passing through the lower guide wheel groove 55 and the lower wheel groove 56.

When the included angle ranges from 120 degrees to 170 degrees, the thigh support 41 and the shank support 43 are attached to the wearing limb most tightly, and the stress of the thigh support and the shank support is the most uniform. Therefore, as a preferable scheme of the utility model, the range of the first included angle ^ 1 and the second included angle ^ 2 is 120 to 170 °, the range of the third included angle ^ 3 and the fourth included angle ^ 4 is 120 to 170 °, and the range of the fifth included angle ^ 5 and the sixth included angle ^ 6 is 120 to 170 °.

In a preferred embodiment of the present invention, a thigh strap 71 is provided on the thigh support 41, a calf strap 72 is provided on the calf support 43, and the thigh strap 71 and the calf strap 72 are used for fixing the brace assembly 4 to the wearing limb.

The working principle of the utility model is as follows: the ball head connecting assembly 3, the bracket assembly 4 and the foot plate assembly 5 are used as supporting structural members of legs and feet, the tensile force generated by stretching the elastic energy storage device 63 is used as a power source, and the waist part is used as a supporting foundation point. In the process of swinging the lifting leg from back to front, the pulling force of the elastic energy storage device 63 is converted into the power for swinging the leg and lifting the foot. In the process from the foot falling to the next foot lifting, the elastic energy storage device 63 is stretched to accumulate the pulling force.

Claims

1. An adjustable orthotic device, comprising: the waist turntable power assisting device comprises a waist support (1), a waist turntable power assisting component (2), a ball head connecting component (3), a bracket component (4), a foot plate component (5), an energy conversion mechanism (6), a thigh binding belt (71) and a shank binding belt (72); the waist support (1) is connected with the upper end of a support assembly (4) through a waist turntable power-assisted assembly (2) and a ball head connecting assembly (3), and the lower end of the support assembly (4) is connected with a foot plate assembly (5); the waist turntable power-assisted assembly (2) and the foot plate assembly (5) are also connected through an energy conversion mechanism (6); the thigh bandage (71) and the shank bandage (72) are respectively connected with the corresponding parts of the bracket component (4);

the bracket component (4) is formed by sequentially connecting a thigh bracket (41), a knee joint connecting device (42) and a shank bracket (43);

the energy conversion mechanism (6) comprises an upper section traction rope (61), a lower section traction rope (62), an elastic energy storage device (63) and a knee guide shaft device (64); the knee guide shaft device (64) is formed by fixedly connecting a knee guide shaft device bearing (642) with a knee guide shaft device guide column (641), and a knee guide shaft device bearing groove (643) is arranged on the knee guide shaft device bearing (642); the knee guide shaft device guide column (641) is fixed at the rotary connection position of the knee joint connecting device (42); the upper end of the elastic energy storage device (63) passes through an upper section traction rope (61) penetrating through a knee guide shaft device bearing groove (643) and is connected with a turntable (23) of the waist turntable power-assisted assembly (2), and the lower end of the elastic energy storage device (63) passes through a lower guide wheel (52) on the foot plate assembly (5) through a lower section traction rope (62) and is connected with a lower wheel (51) on the foot plate assembly (5).

2. The adjustable orthosis set forth in claim 1, wherein: the thigh support (41) is of a broken line structure and is formed by sequentially fixing a first thigh support length (411), a second thigh support length (412), a third thigh support length (413), a fourth thigh support length (414) and a fifth thigh support length (415); the upper end of the first length (411) of the thigh support is fixedly connected with the ball head connecting assembly (3), and the lower end of the fifth length (415) of the thigh support is fixedly connected with the knee joint connecting device (42); the first length (411) of the thigh support and the second length (412) of the thigh support form a first included angle (angle 1), the second length (412) of the thigh support and the third length (413) of the thigh support form a second included angle (angle 2), and the first included angle (angle 1) is equal to the second included angle (angle 2); a third included angle ([ angle ] 3) is formed between the third length (413) of the thigh support and the fourth length (414) of the thigh support, a fourth included angle ([ angle ] 4) is formed between the fourth length (414) of the thigh support and the fifth length (415) of the thigh support, and the third included angle ([ angle ] 3) is equal to the fourth included angle ([ angle ] 4).

3. The adjustable orthosis set forth in claim 1, wherein: the shank support (43) is of a broken line structure and is formed by sequentially fixing a shank support first section (431), a shank support second section (432) and a shank support third section (433); the upper end of the first section (431) of the shank support is fixedly connected with a knee joint connecting device (42), and the lower end of the third section (433) of the shank support is fixedly connected with a foot plate component (5); the first section (431) of the lower leg support and the second section (432) of the lower leg support form a fifth included angle (angle 5), the second section (432) of the lower leg support and the third section (433) of the lower leg support form a sixth included angle (angle 6), and the fifth included angle (angle 5) is equal to the sixth included angle (angle 6).

4. The adjustable orthosis set forth in claim 2, wherein: the lower end of the thigh support in the fifth length (415) is provided with a thigh support adjusting part (416), and the thigh support adjusting part (416) is fixedly connected with the knee joint connecting device (42).

5. The adjustable orthosis set forth in claim 3, wherein: the upper end of the first section (431) of the shank support is provided with a shank support adjusting part (434), and the shank support adjusting part (434) is fixedly connected with the knee joint connecting device (42).

6. The adjustable orthosis set forth in claim 2, wherein: the range of the first included angle ([ angle ] 1) and the second included angle ([ angle ] 2) is 120 to 170 °.

7. The adjustable orthosis set forth in claim 2, wherein: the range of the third included angle ([ angle ] 3) and the fourth included angle ([ angle ] 4) is 120 to 170 °.

8. The adjustable orthosis set forth in claim 3, wherein: the range of the fifth included angle ([ angle ] 5) and the sixth included angle ([ angle ] 6) is 120 to 170 °.

9. The adjustable orthosis set forth in claim 1, wherein: the foot plate assembly (5) comprises a lower wheel (51), a lower guide wheel (52), a foot plate connecting block (53) and a foot plate (54); the foot plate (54) is fixedly connected with the lower end of the shank bracket (43) through a foot plate connecting block (53); the lower guide wheel (52) is formed by fixedly connecting a lower guide wheel column (521) with a lower guide wheel bearing (522); the lower guide wheel (52) is fixedly connected to the outer side of the foot plate connecting block (53) through a lower guide wheel column (521); a lower guide wheel groove (55) is formed in the periphery of the lower guide wheel (52), and the minimum bottom diameter of the lower guide wheel groove (55) is 16 mm; the lower wheel (51) is fixedly connected to the outer side of the foot plate connecting block (53) through a cylindrical pin, and a lower wheel groove (56) is formed in the periphery of the lower wheel (51).

10. The adjustable orthosis set forth in claim 1, wherein: the knee guide shaft device bearing groove (643) has a bottom diameter of at least 16 mm.