CN111938889A - Powered knee joint orthosis - Google Patents
Powered knee joint orthosis Download PDFInfo
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- CN111938889A CN111938889A CN202010688880.1A CN202010688880A CN111938889A CN 111938889 A CN111938889 A CN 111938889A CN 202010688880 A CN202010688880 A CN 202010688880A CN 111938889 A CN111938889 A CN 111938889A
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- upper plate
- knee joint
- motor
- lower plate
- rocker arm
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F5/0102—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations
- A61F5/0104—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations without articulation
- A61F5/0106—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations without articulation for the knees
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- Health & Medical Sciences (AREA)
- Nursing (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
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Abstract
The invention relates to a knee joint orthosis, and belongs to the field of medical instruments. The invention comprises the following steps: the device comprises an upper plate, a lower plate, a power output system and a transmission system; the invention aims to provide a power knee joint orthosis which can assist a knee joint patient to walk, correct knee joint deformity or perform postoperative rehabilitation training and relieve the pain of the patient. The power knee joint orthosis is exquisite in structure and light, the connecting rod and the flexible part form flexible transmission to enable transmission to be smoother, and the orthosis can be made to accord with the walking mode of a patient by adjusting the rotating speed and the frequency of the controllable motor aiming at each specific patient, so that the patient feels comfortable and the power knee joint orthosis plays a role to the maximum extent.
Description
The technical field is as follows:
the invention relates to a knee joint orthosis, and belongs to the field of medical instruments.
Background art:
the knee joint is composed of the lower end of the femur, the upper end of the tibia and the patella, is a very complex and important joint of a human body, and is also a joint with the highest incidence rate of the whole human body. Knee joint deformity, osteoarthritis, synovitis, patella malacia, meniscus damage are common conditions in knee joint disease. The knee joint disease causes abnormal stress distribution of joints, usually causes problems of pain, difficulty in walking and the like, and seriously affects normal life. The biomechanical treatment of wearing orthoses is a new treatment model, which is widely used for the treatment of knee joint diseases due to its low cost, non-invasive, and effective pain relief.
Most of the current knee joint orthoses are not driven by power, but the powered knee joint orthoses are large in size, so that the load of the knee joint is increased, and the movement is inconvenient. The power knee joint orthosis provided by the invention has an exquisite and light structure, the connecting rod and the flexible part form flexible transmission to enable the transmission to be smoother, and the orthosis can be more suitable for the walking mode of a patient by adjusting the rotating speed and the frequency of the controllable motor aiming at each specific patient, so that the patient feels comfortable and can play a role to the greatest extent.
The invention content is as follows:
the invention aims to provide a power knee joint orthosis which realizes flexible transmission through a novel transmission mechanism, is lighter and can effectively assist knee joint patients to act, relieve pain and enable the patients to live normally.
The technical scheme is as follows:
the device comprises an upper plate (5), a lower plate (7), a power output system and a transmission system;
the power output system consists of a motor (15), a motor base (14), a coupler (1), a worm (2), a turbine (13), a worm bearing seat (3) and a turbine bearing seat (11); the transmission system consists of a crank (12), a connecting rod (10), a rocker arm (9), a rope (8), a spring (6) and a pulley (4). The upper plate (5) is provided with two binding bands; the lower plate (7) is provided with a binding band;
the upper plate (5) and the lower plate (7) are installed together and can rotate around a shaft to form a certain angle; the pulley (4) is fixed on the upper plate (5);
the motor (15) is fixed on the upper plate (5) through the motor base (14), one end of the worm (2) is mounted with the motor (15) through the coupler (1), the other end of the worm (2) is fixed on the upper plate (5) through the worm bearing seat (3), the turbine (13) is fixed on the upper plate (5) through the turbine bearing seat (11), and the turbine (13) is meshed with the worm (2);
the output shaft of the turbine (13) is fixedly connected with one end of the crank (12), the other end of the crank (12) is hinged with one end of the connecting rod (10), the other end of the connecting rod (10) is hinged with the rocker arm (9), the rocker arm (9) is a V-shaped rod with a preset angle, a heel shaft is arranged at the vertex of the angle of the rocker arm (9) and is arranged on the upper plate (5), so that the rocker arm (9) can rotate around the shaft on the upper plate (5), the rope (8) and the spring (6) are arranged at one end of the rocker arm (9) which is not hinged with the connecting rod (10), the other end of the rope (8) is wound around the pulley (4) and fixed on the lower plate (7), the other end of the spring (6) is fixedly arranged on the lower plate (7).
The transmission system is formed by matching a special connecting rod (10) mechanism with a flexible mechanism, the crank (12) performs circular motion to drive the connecting rod (10) to move, the connecting rod (10) drives the rocker arm (9) to perform reciprocating motion, and the flexible force is generated by the rope (8) and the spring (6) to enable the upper plate (5) and the lower plate (7) to generate angle change so as to assist the movement of a patient.
The upper plate (5) and the lower plate (7) are fixed together through cotter pins.
The powered knee joint orthosis is characterized in that the motor (15) is a servo motor, the speed can be adjusted through a controller, the motor (15) provides power, and the walking pressure of a patient is relieved.
The powered knee orthosis is characterized in that the lower plate (7) is mounted on the upper plate (5).
Description of the drawings:
FIG. 1 is a schematic diagram of the present invention.
In the figure: the worm gear coupling comprises a coupling (1), a worm (2), a worm bearing seat (3), a pulley (4), an upper plate (5), a spring (6), a lower plate (7), a rope (8), a rocker arm (9), a connecting rod (10), a turbine bearing seat (11), a crank (12), a turbine (13), a motor seat (14) and a motor (15).
The specific implementation mode is as follows:
embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, the upper plate (5) and the lower plate (7) are installed together and can rotate around an axis to form a certain angle; the pulley (4) is fixed on the upper plate (5).
Motor (15) pass through motor cabinet (14) fix upper plate (5) on, worm (2) one end with motor (15) pass through shaft coupling (1) install together, worm (2) other end pass through worm bearing frame (3) fix upper plate (5) on, turbine (13) pass through turbine bearing frame (11) fix upper plate (5) on, turbine (13) with worm (2) meshing. The motor (15) provides power for the whole system.
The output shaft of the turbine (13) is fixedly connected with one end of the crank (12), the other end of the crank (12) is hinged with one end of the connecting rod (10), the other end of the connecting rod (10) is hinged with the rocker arm (9), the rocker arm (9) is a V-shaped rod with a preset angle, a heel shaft is arranged at the vertex of the angle of the rocker arm (9) and is arranged on the upper plate (5), so that the rocker arm (9) can rotate around the shaft on the upper plate (5), the rope (8) and the spring (6) are arranged at one end of the rocker arm (9) which is not hinged with the connecting rod (10), the other end of the rope (8) is wound around the pulley (4) and fixed on the lower plate (7), the other end of the spring (6) is fixedly arranged on the lower plate (7).
The transmission system is formed by matching a special connecting rod (10) mechanism with a flexible mechanism, the crank (12) performs circular motion to drive the connecting rod (10) to move, the connecting rod (10) drives the rocker arm (9) to perform reciprocating motion, and the flexible force is generated by the rope (8) and the spring (6) to enable the upper plate (5) and the lower plate (7) to generate angle change so as to assist the movement of a patient.
The upper plate (5) and the lower plate (7) are fixed together through cotter pins.
The powered knee joint orthosis is characterized in that the motor (15) is a servo motor, the speed can be adjusted through a controller, the motor (15) provides power, and the walking pressure of a patient is relieved.
The powered knee orthosis is characterized in that the lower plate (7) is mounted on the upper plate (5).
Claims (5)
1. A powered knee joint orthosis, comprising: the powered knee joint orthosis is composed of: the device comprises an upper plate (5), a lower plate (7), a power output system and a transmission system; the power output system consists of a motor (15), a motor base (14), a coupler (1), a worm (2), a turbine (13), a worm bearing seat (3) and a turbine bearing seat (11); the transmission system consists of a crank (12), a connecting rod (10), a rocker arm (9), a rope (8), a spring (6) and a pulley (4); the upper plate (5) is provided with two binding bands; the lower plate (7) is provided with a binding band;
the upper plate (5) and the lower plate (7) are installed together and can rotate around a shaft to form a certain angle; the pulley (4) is fixed on the upper plate (5);
the motor (15) is fixed on the upper plate (5) through the motor base (14), one end of the worm (2) is mounted with the motor (15) through the coupler (1), the other end of the worm (2) is fixed on the upper plate (5) through the worm bearing seat (3), the turbine (13) is fixed on the upper plate (5) through the turbine bearing seat (11), and the turbine (13) is meshed with the worm (2);
the output shaft of the turbine (13) is fixedly connected with one end of the crank (12), the other end of the crank (12) is hinged with one end of the connecting rod (10), the other end of the connecting rod (10) is hinged with the rocker arm (9), the rocker arm (9) is a V-shaped rod with a preset angle, a heel shaft is arranged at the vertex of the angle of the rocker arm (9) and is arranged on the upper plate (5), so that the rocker arm (9) can rotate around the shaft on the upper plate (5), the rope (8) and the spring (6) are arranged at one end of the rocker arm (9) which is not hinged with the connecting rod (10), the other end of the rope (8) is wound around the pulley (4) and fixed on the lower plate (7), the other end of the spring (6) is fixedly arranged on the lower plate (7).
2. A powered knee orthosis according to claim 1, wherein the transmission system comprises a special linkage (10) mechanism coupled to a flexible mechanism, the crank (12) moving in a circular motion to move the linkage (10), the linkage (10) moving the rocker (9) in a reciprocating motion, the flexible force generated by the cable (8) and the spring (6) causing the angle between the upper plate (5) and the lower plate (7) to change, thereby assisting the patient in moving.
3. A powered knee orthosis according to claim 1, wherein the upper plate (5) and the lower plate (7) are secured together by a cotter pin.
4. A powered knee orthosis according to claim 2, wherein the motor (15) is a servo motor, the speed of which can be adjusted by a controller, the motor (15) providing power to relieve walking pressure on the patient.
5. A powered knee orthosis according to claim 4, wherein the lower plate (7) is mounted on the upper plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010688880.1A CN111938889A (en) | 2020-07-17 | 2020-07-17 | Powered knee joint orthosis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010688880.1A CN111938889A (en) | 2020-07-17 | 2020-07-17 | Powered knee joint orthosis |
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| Publication Number | Publication Date |
|---|---|
| CN111938889A true CN111938889A (en) | 2020-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010688880.1A Pending CN111938889A (en) | 2020-07-17 | 2020-07-17 | Powered knee joint orthosis |
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| CN (1) | CN111938889A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5020790A (en) * | 1990-10-23 | 1991-06-04 | Board Of Supervisors Of Louisiana State University And Agricultural And Mechanical College | Powered gait orthosis |
| CN203915170U (en) * | 2014-04-29 | 2014-11-05 | 周华军 | The static drawing-off brace of joint function disturbance fine adjustment type |
| CN104873314A (en) * | 2015-04-28 | 2015-09-02 | 繁昌县倍思生产力促进中心有限公司 | Simple orthotic device for knee joints |
| US20170112652A1 (en) * | 2015-10-21 | 2017-04-27 | Brian Raab | Extension Assist Device for an Anatomic Joint Brace |
| CN107485476A (en) * | 2017-09-20 | 2017-12-19 | 国家康复辅具研究中心 | Foot axis trimming type drop foot rehabilitation KAFO |
| CN111084685A (en) * | 2020-01-08 | 2020-05-01 | 复旦大学 | Knee joint brace controlled by supporting phase |
-
2020
- 2020-07-17 CN CN202010688880.1A patent/CN111938889A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5020790A (en) * | 1990-10-23 | 1991-06-04 | Board Of Supervisors Of Louisiana State University And Agricultural And Mechanical College | Powered gait orthosis |
| CN203915170U (en) * | 2014-04-29 | 2014-11-05 | 周华军 | The static drawing-off brace of joint function disturbance fine adjustment type |
| CN104873314A (en) * | 2015-04-28 | 2015-09-02 | 繁昌县倍思生产力促进中心有限公司 | Simple orthotic device for knee joints |
| US20170112652A1 (en) * | 2015-10-21 | 2017-04-27 | Brian Raab | Extension Assist Device for an Anatomic Joint Brace |
| CN107485476A (en) * | 2017-09-20 | 2017-12-19 | 国家康复辅具研究中心 | Foot axis trimming type drop foot rehabilitation KAFO |
| CN111084685A (en) * | 2020-01-08 | 2020-05-01 | 复旦大学 | Knee joint brace controlled by supporting phase |
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Application publication date: 20201117 |
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