CN210747384U - Knee joint movement protector - Google Patents
Knee joint movement protector Download PDFInfo
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- CN210747384U CN210747384U CN201921465479.0U CN201921465479U CN210747384U CN 210747384 U CN210747384 U CN 210747384U CN 201921465479 U CN201921465479 U CN 201921465479U CN 210747384 U CN210747384 U CN 210747384U
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Abstract
The utility model relates to a knee joint motion protector, which comprises a protective pad fixed at the middle knee joint part, a plurality of tension rings arranged at the lower section of the femur and the upper section of the tibia, upper booster rods symmetrically arranged at both sides of the femur and lower booster rods symmetrically arranged at both sides of the tibia, wherein one end of each upper booster rod is movably connected on the protective pad through a sliding hinge, and the other end of each upper booster rod is hinged on the uppermost tension ring at the femur; one end of the lower assisting rod is connected to the middle protecting pad through the fixed hinge, the other end of the lower assisting rod is hinged to the tension ring at the lowest end of the shin bone, an eccentricity e is formed between the sliding hinge and the fixed hinge, when walking stretching and bending movement is conducted, an outward reverse eccentric moment is generated at the femoral shin force transmission position of the knee joint, so that the influence of eccentricity generated by partial knee joint stretching and bending movement is counteracted, the influence of eccentricity of the femoral shin force transmission line to the inner side is compensated, and the stress distribution of the contact surface between the femoral shin bones is more uniform.
Description
The technical field is as follows: the utility model relates to the technical field of medical care equipment, specifically a knee joint motion protector.
Background
Knee joint injury is a common disease for middle-aged and elderly people and athletes, and most of the middle-aged and elderly people have diseases caused by senile degenerative pathological changes of the knee joint, and are injured accidentally in improper sports or daily life. The concrete expression is as follows: meniscus injury, ligament or muscle injury, hyperostosis or cartilage wearing and tearing etc. and the light person influences quality of life, and the heavy person will carry out the operation, and the postoperative often has very long recovered stage, and many people often adopt walking stick, brace to help, and this of course can bring inconvenience for daily life. At present, a knee joint booster is externally arranged outside the body and does not influence the appearance in many countries, so that the knee joint booster is popular with patients.
The general knee joint booster has the following problems:
1) the specific situation that the knee joint of a patient is injured during movement is not considered, and a fixed axle center connecting rod form is designed, so that the knee joint movement mode is not a simple stretching movement but a complex multi-degree-of-freedom movement mode combining stretching, rolling, sliding, lateral movement and axial rotation during movement. Thus, it does not rotate around the same fixed center, but produces multiple instantaneous centers of rotation according to the course of motion. The booster product with the fixed rotation center can generate side effects on the protection of joints, and because the structure and the motion mode of the knee joint of each person are different, the axle center of the externally arranged connecting rod can not coincide with the instantaneous rotation center of the knee joint of the person during motion bending, so opposite side effects can be generated sometimes, and the injury condition is aggravated.
2) How to reduce the eccentric influence and stress peak increase is not considered, when the knee joint walks, the acting point of a femoral-tibial power transmission line is deviated to the rear side to generate the eccentric to the rear side, and when the flexion is more than 90 degrees, the acting point is deviated to the inner side to reduce the contact surface, so that the knee joint is subjected to the double action of axial force and moment, thereby not only reducing the stress increase of the femoral-tibial joint contact surface, but also generating the peak due to the uneven distribution of the stress, and further causing the knee joint to be injured.
3) The ligament protection measures are not specially considered, for example, the tension force is reduced when the knee joint protector applies pre-pressure to move, and the like, while a common knee joint booster is not stressed during installation, when walking and going up steps, the corresponding ligament can be pulled during stretching, bending, internal rotation and external rotation of the knee joint through the friction force of the tension belt between the femur and the tibia and depending on the gravity of the connecting rod and the rotating shaft, and when the movement speed is too high and the force is too strong, the instant tension force of the ligament is too large to cause strain, so that the stress of the joint is unbalanced, and the meniscus or the ligament is further injured, so the knee joint protector needs to consider the protection of the ligament.
4) The tension change of various ligaments in the movement is not considered, and the targeted pre-tension adjustment cannot be carried out; when the knee joint extends and bends at different angles, the internal force of the anterior and posterior cruciate ligaments can change in opposite directions, the stress of the inner and outer collateral ligaments can change correspondingly when the horizontal plane rotates inwards and outwards, and when the unidirectional change is overlarge, a certain ligament and corresponding joint tissues can be injured.
5) The tension belts on the upper leg and the lower leg are not controlled by early warning, the tightness is often difficult to control, and the blood circulation is influenced by not knowing how long the belts are, so that the muscles of the legs are injured, and therefore the tension belts need to be relaxed for a few minutes for reuse.
However, the existing knee boosters do not have the above function, and therefore, the knee joint motion protector which is targeted according to different specific disease conditions, can reduce the peak value of the joint contact stress, has adjustable pre-acting force and is provided with early warning control is necessary.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the problem that prior art exists, provide one kind according to the concrete state of an illness of difference, it is corresponding, reducible joint contact stress peak value has adjustable prestressing force to there is early warning control's knee joint motion protector.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
the utility model provides a knee joint motion protector, is including fixing the protection pad at middle knee joint position, locates a plurality of tension rings of thighbone hypomere and shin bone upper segment, and the symmetry sets up the lower helping hand pole of last helping hand pole and shin bone both sides in thighbone both sides respectively, its characterized in that: one end of the upper boosting rod is movably connected with the protective pad through a sliding hinge, and the other end of the upper boosting rod is hinged on the tension ring at the upper end of the femur; one end of the lower assisting rod is connected to the middle protection pad through the fixed hinge, the other end of the lower assisting rod is hinged to the tension ring at the lower end of the tibia, and an eccentricity e is formed between the sliding hinge and the fixed hinge, so that when walking stretching and bending movement is carried out, an outward reverse eccentric moment is generated at the femoral tibia force transmission position at the knee joint, the influence of eccentricity generated by partial knee joint stretching and bending movement is counteracted, the influence of eccentricity of the femoral tibia force transmission line towards the inner side is compensated, and the stress distribution of the contact surface between the femoral tibia and the femur is more uniform.
Preferably, the sliding hinge comprises a bottom plate, a cover plate and a hinged sliding block, an arc-shaped sliding groove is formed in the cover plate, one end of the hinged sliding block is movably arranged in the arc-shaped sliding groove, and the other end of the hinged sliding block is hinged with the upper boosting rod; according to the motion characteristic of the lower limbs, the sliding groove is an arc-shaped groove which is concave upwards, when the lower limbs move, the sliding hinge can slide left and right, so that force transmission is smooth when the upper leg and the lower leg are bent, the eccentricity of the sliding hinge can correspondingly change, the sliding hinge can be more suitable for the change of the rotation center of the knee joint when the knee joint moves, the inward eccentricity generated by a force transmission line between the tibia and the femur can be partially compensated under any condition, the sliding hinge and the bottom plate of the fixed hinge are integrated, and the force transmission rigidity between the sliding hinge and the fixed hinge is further enhanced.
Preferably, a pair of oblique tension springs are arranged between the tension rings connected with the protection pad, the tension springs are distributed on two sides of the upper and lower boosting rods, and two ends of each tension spring are hinged with the corresponding tension ring; when the tension spring is installed, the tension spring is pretensioned according to requirements, so that the knee joint is in a prepressing state, when the knee joint is in stretching and bending movement, the outer side spring is further tensioned, the inner side spring is relaxed, a reverse moment is added to the knee joint, the final tension of the ligament is reduced, and the ligament is protected from being strained.
Preferably, the tension spring downside is equipped with the stiffening sheet, the stiffening sheet is fixed on the protection pad, and the stiffening sheet is linked together with the protection pad and is become integrative to reduce the deformation of protection pad when the spring stretch-draw, thereby play the biography power effect between spring and the knee joint better.
Preferably, a hoop is arranged at the intersection of the booster rod and the tension ring, and the booster rod and the tension ring respectively penetrate through the hoop and can freely slide mutually.
Preferably, the protection pad is further provided with an intelligent early warning device arranged on the inner side of the protection pad, the intelligent early warning device comprises a temperature sensor which is in contact with the surface of the muscle on the inner side of the knee joint and is used for monitoring the temperature of the knee joint, a microprocessor used for processing the temperature sensor to obtain data, and a Bluetooth transmission unit used for transmitting the temperature data processed by the microprocessor to the mobile phone client; whether the temperature of the inner side of the knee exceeds a set threshold value or not is known through a temperature sensor, and an alarm is sent to a mobile phone client when the temperature exceeds the threshold value, so that a user is reminded of loosening a tension ring, and the problems of muscle swelling, heating, blood blockage and the like caused by poor heat dissipation due to too tight tension ring or too long time are avoided.
Preferably, a three-axis acceleration sensor used for monitoring the use state of the motion protector is further arranged in the intelligent early warning device, and the three-axis acceleration sensor is in signal connection with the microprocessor; the acceleration data of the motion protector is obtained through the three-axis acceleration sensor, so that whether the patient wears the motion protector to start walking or not is judged, data are sent to the mobile phone client through the microprocessor, the mobile phone client starts timing, when the timing exceeds a set threshold value, an alarm sound or a vibration mode prompt alarm is sent through the mobile phone client, and the problems that muscle swelling and heating, blood blocking and the like are caused due to poor heat dissipation due to too long binding time of a tension ring can be avoided.
Compared with the prior art, the utility model, have following advantage:
an eccentricity e is arranged between a sliding hinge and a fixed hinge which are connected by an upper assisting rod and a lower assisting rod, so that when walking, stretching and bending motions are carried out, an outward reverse eccentric moment is generated at the femoral tibia power transmission position at the knee joint, so as to counteract the eccentric influence generated by partial knee joint stretching and bending motions, compensate the eccentric influence of the femoral tibia power transmission line to the inner side, and enable the stress distribution of the contact surface between the femoral tibia and the femoral tibia to be more uniform;
the sliding hinge is provided with an arc-shaped groove which is concave upwards, when the lower limb moves, the sliding hinge can slide left and right, so that force transmission is smooth when the upper leg and the lower leg are bent, the eccentric distance of the sliding hinge can correspondingly change, the change of the rotating center of the sliding hinge can be more suitable for the change of the knee joint when the knee joint moves, and the inward eccentricity generated by a force transmission line between the tibia and the femur can be partially compensated under any condition;
two oblique tension springs are respectively arranged at the left and right of the middle connecting shaft, and a stiffening sheet of a protection pad is arranged below the springs so as to reduce the deformation of the protection pad when the springs are tensioned, thereby better playing a role in force transmission between the springs and the knee joints;
through setting up intelligent early warning device monitoring knee joint department temperature and motion protector wearing time, in time remind the user to loosen the tension ring, can avoid tying up too tightly or the time is too of a specified duration because of the tension ring, cause the heat dissipation badly and make muscle swelling generate heat, blood retardant scheduling problem.
Description of the drawings:
FIG. 1 is a schematic side view of the present invention;
fig. 2 is a schematic top view and a schematic cross-sectional view of the sliding hinge and the fixed hinge of the present invention;
fig. 3 is a schematic structural view of a first connecting hinge of the present invention;
FIG. 4 is a schematic view of the ferrule of the present invention;
fig. 5 is a schematic view of the second structure of the connection hinge of the present invention.
Description of reference numerals: 1-knee middle protection pad, 2, 3-tension spring, 6, 7-stiffening sheet, 4-upper booster rod, 5-lower booster rod, 9-hole of protection pad, 10-sliding hinge, 11-fixed hinge, 12, 13, 14, 15, 16, 17-tension ring, 18-hoop, 19-connecting hinge I, 20-connecting hinge II, 21-intelligent early warning device, 101-bottom plate, 102-cover plate, 103-hinged slide block, 104-arc slide groove and 105-fixing bolt.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
This example is suitable for patients in need of rehabilitation and health care after injuries to bones, meniscus and ligaments, and has a structure with one side detailed in fig. 1 and two sides symmetrical, wherein one side is composed of the following parts:
the knee joint protection device comprises a protection pad 1 fixed at the middle knee joint part, a plurality of tension rings 12, 13, 14, 15, 16 and 17 arranged at the lower section of a femur and the upper section of a tibia, an upper boosting rod 4 and a lower boosting rod 5 respectively and symmetrically arranged at two sides of the femur, wherein one end of the upper boosting rod 4 is movably connected to the protection pad 1 through a sliding hinge 10, and the other end of the upper boosting rod is hinged to the uppermost tension ring 12 at the femur; one end of the lower boosting rod 5 is connected to the protective pad 1 through a fixed hinge 11, and the other end is hinged 19 to a tension ring 17 at the lowest end of the tibia; an eccentricity e is arranged between the sliding hinge 10 and the fixed hinge 11, so that when walking, extending and bending motions are carried out, an outward reverse eccentric moment is generated at the femoral tibia force transmission position at the knee joint, so as to counteract the eccentric influence generated by partial knee joint extending and bending motions, compensate the influence of the femoral tibia force transmission line to the inner side eccentricity, ensure that the stress distribution of the contact surface between the femoral tibia and the knee joint is uniform, and effectively protect the knee joint; the protection pad 1 is made of multi-layer knitted fabric with certain strength and elasticity, and a hole 9 is formed in the front of the knee on the protection pad 1 to facilitate patella movement and heat dissipation; the upper and lower boosting rods are made of carbon fiber, metal and plastic; the tension ring can adopt a strong elastic band with male and female buttons; the bottom plates 101 of the sliding hinge 10 and the fixed hinge 11 are connected with the protection pad 1 by strong glue or bolts.
As shown in fig. 2, the sliding hinge 10 includes a bottom plate 101, a cover plate 102 and a hinge slider 103, the cover plate 102 is provided with an arc-shaped sliding slot 104, one end of the hinge slider 103 is movably installed in the arc-shaped sliding slot 104, the other end is hinged with the upper boosting rod 4, and the bottom plate 101 is connected with the cover plate 102 through a fixing bolt 105; when the upper and lower limbs do stretching and bending movement, the hinged sliding block 103 can slide left and right along the arc-shaped sliding groove 104, so that force transmission is smooth when the upper and lower limbs bend, the eccentric distances arranged on the sliding hinge 10 and the fixed hinge 11 can correspondingly change, and the change of the rotation center of the knee joint can be adapted to the change of the knee joint when the knee joint moves, and can be compensated under any condition, and the influence of the inner eccentric of part of the force transmission line between the thighbone and the shinbone can be compensated, so that the stress distribution of the contact surface is more uniform; the sliding hinge 10 and the fixed hinge 11 are separately arranged, and preferably, the sliding hinge 10 and the bottom plate of the fixed hinge 11 are an integral piece, so that the force transmission rigidity between the sliding hinge and the fixed hinge can be enhanced.
As shown in fig. 1, a pair of oblique tension springs 2 and 3 are arranged between tension rings 14 and 15 connected with the protection pad, the tension springs 2 and 3 are distributed at two sides of upper and lower boosting rods 4 and 5, and two ends of the tension springs are hinged with the tension rings 14 and 15; the stiffening sheets 6 and 7 are arranged below the tension springs 2 and 3, the stiffening sheets 6 and 7 are integrated with the protective pad 1, before a patient stands, the tension spring is pretensioned when a booster is arranged, at the moment, the stiffening sheets bear partial tension and are pressed, the other part of the stiffening sheets is transmitted to the knee joint, so that when the patient does not bear gravity, the patient firstly bears inward pressure, the joint and the ligament correspondingly generate pre-pressure when the joint and the ligament are not stressed, when the knee joint stretches and bends, the tension spring at one side is further passively tensioned, the stiffening sheets below the tension spring can release pressure due to passive tension, and the pressure can be transferred to the knee joint, so that the final tension of the related ligament is reduced, the ligament is protected from being pulled, the tension of the four oblique tension springs at two sides is adjustable, the situation of the knee joint is different, the tightness degree of the corresponding spring is adjusted to achieve the purpose of protecting the corresponding ligament.
As shown in fig. 4, a hoop 18 is provided at the intersection of the booster bars 4, 5 and the tension rings 13, 14, 15, 16, and the booster bars 4, 5 and the tension rings 13, 14, 15, 16 respectively pass through the hoop 18 and can freely slide with each other.
As shown in fig. 1, the protection pad 1 is further provided with an intelligent early warning device 21 installed on the inner side of the protection pad 1, the intelligent early warning device 21 comprises a temperature sensor contacted with the surface of the muscle on the inner side of the knee joint and used for monitoring the temperature at the knee joint, a microprocessor used for processing the temperature data obtained by the temperature sensor, and a bluetooth transmission unit used for transmitting the temperature data processed by the microprocessor to the mobile phone client, the temperature sensor and the bluetooth transmission unit are connected with the microprocessor through a signal line, the temperature sensor is attached to a heat conduction material on the back of the intelligent early warning device, the heat conduction material can be made of metal material and can conduct the temperature of the surface of the muscle contacted with the heat conduction material to the temperature sensor, whether the temperature on the inner side of the knee joint exceeds a set threshold value is obtained through the temperature sensor, the problems of muscle swelling, heating, blood blockage and the like caused by poor heat dissipation due to too tight tension ring or too long time are avoided.
A three-axis acceleration sensor for monitoring the use state of the motion protector is also arranged in the intelligent early warning device 21 and is in signal connection with the microprocessor; obtain the acceleration data of motion protector through triaxial acceleration sensor, judge whether the patient has worn the motion protector and begin to walk, and send data to mobile client through microprocessor, make it begin the timing, when the timing surpassed and set for the threshold value, through built-in vibration sensor and the buzzer of intelligent early warning device 21, or mobile client sends out alarm sound or vibration mode suggestion and reports an emergency and asks for help or increased vigilance, can avoid binding up the time too for a long time because of tension ring, cause the heat dissipation badly and make muscle swelling generate heat, blood retardant scheduling problem.
The upper and lower boosting rods 4 and 5 are made of metal or engineering plastic, and the arc-shaped sliding hinge 10 at the lower part of the upper boosting rod 4 is made of metal or engineering plastic; the material of the fixed hinge 11 at the upper part of the lower boosting rod 5 is also metal or engineering plastic; all the tension rings 12, 13, 14, 15, 16 and 17 are strong elastic bands, the tension springs 2 and 3 are made of thin metal springs or strong elastic bands, a hoop 18 for fixing the tension rings is made of metal or engineering plastics, and the tension rings 12, 13, 14, 15, 16 and 17 are adjusted and fixed by nylon buckles bonded on the tension rings; the first connecting hinges 19 and the second connecting hinges 20 of the boosting rods 4 and 5 and the tension rings 12, 13, 14, 15, 16 and 17 are made of metal or engineering plastics.
As shown in fig. 1, 3, 4 and 5, the base plate 101 of the sliding hinge 10 and the fixed hinge 11 is connected with the protection pad 1 by strong glue; the hoops 18 at the joints of the booster rods 4 and 5 and the tension rings 13, 14, 15 and 16, and the connection between the tension springs 2 and 3 and the connection hinges 20 of the tension rings 14 and 15 and the protection pad 1 are also bonded by strong glue; the hoops 18 at the intersections of the booster rods 4 and 5 and the tension rings 13, 14, 15 and 16 are sleeved on the tension rings 13, 14, 15 and 16; the connection hinge I19 of the connection parts of the boosting rods 4 and 5 and the tension rings 12 and 17 is also sleeved on the tension rings 12 and 17; the tension springs 2 and 3 and the second connecting hinge 20 at the tension rings 12 and 17 are bonded on the protective pad 1, and the tension rings 12 and 17 penetrate through a sleeve hole in the middle of the second connecting hinge 20.
All the strong elastic bands of the tension rings 12, 13, 14, 15, 16 and 17 are open, and are connected and closed by nylon buckles after being tensioned, so that the use is convenient; the tension spring can be tensioned to a required degree according to needs and then connected and closed by a nylon hasp.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The utility model provides a knee joint motion protector, is including fixing protection pad (1) at middle knee joint position, locates a plurality of tension rings (12, 13, 14, 15, 16, 17) of thighbone hypomere and shin bone upper segment, and the symmetry sets up respectively in last helping hand pole (4) of thighbone both sides and lower helping hand pole (5) of shin bone both sides, its characterized in that: one end of the upper boosting rod (4) is movably connected with the protective pad (1) through a sliding hinge (10), and the other end of the upper boosting rod is hinged on a tension ring (12) at the upper end of the femur; one end of the lower assisting rod (5) is connected to the protective pad (1) through a fixed hinge (11), the other end of the lower assisting rod is hinged to a tension ring (17) at the lower end of the tibia, and an eccentric distance e is arranged between the sliding hinge (10) and the fixed hinge (11).
2. The knee joint movement protector according to claim 1, wherein the sliding hinge (10) comprises a bottom plate (101), a cover plate (102) and a hinge sliding block (103), the cover plate (102) is provided with an arc sliding groove (104), one end of the hinge sliding block (103) is movably arranged in the arc sliding groove (104), the other end of the hinge sliding block is hinged with the upper boosting rod (4), and the sliding hinge (10) and the bottom plate (101) of the fixed hinge (11) are integrated.
3. The knee joint movement protector according to claim 1, characterized in that a pair of oblique tension springs (2, 3) are arranged between the tension rings (14, 15) connected with the protective pad (1), the tension springs (2, 3) are distributed on both sides of the upper and lower boosting rods (4, 5), and both ends are hinged with the tension rings (14, 15).
4. A knee joint movement protector according to claim 3, characterized in that stiffening webs (6, 7) are provided on the underside of the tension springs (2, 3), said stiffening webs (6, 7) being fixed to the protective pad (1).
5. A knee joint movement protector according to claim 1, characterized in that a hoop (18) is provided at the intersection of the booster rod (4, 5) and the tension ring (13, 14, 15, 16), and the booster rod (4, 5) and the tension ring (13, 14, 15, 16) respectively pass through the hoop (18) and can freely slide with each other.
6. The knee joint movement protector according to claim 1, wherein an intelligent early warning device (21) is further arranged on the protective pad and mounted on the inner side of the protective pad (1), the intelligent early warning device (21) comprises a temperature sensor which is in contact with the surface of the muscle on the inner side of the knee joint and is used for monitoring the temperature at the knee joint, a microprocessor used for processing data obtained by the temperature sensor, and a Bluetooth transmission unit used for transmitting the temperature data processed by the microprocessor to a mobile phone client.
7. The knee joint movement protector according to claim 6, characterized in that a triaxial acceleration sensor for monitoring the use state of the movement protector is further arranged in the intelligent early warning device (21), and the triaxial acceleration sensor is in signal connection with the microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921465479.0U CN210747384U (en) | 2019-09-04 | 2019-09-04 | Knee joint movement protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921465479.0U CN210747384U (en) | 2019-09-04 | 2019-09-04 | Knee joint movement protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210747384U true CN210747384U (en) | 2020-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921465479.0U Expired - Fee Related CN210747384U (en) | 2019-09-04 | 2019-09-04 | Knee joint movement protector |
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| Country | Link |
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| CN (1) | CN210747384U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113134826A (en) * | 2021-05-28 | 2021-07-20 | 金陵科技学院 | Knee joint power assisting device |
| CN114145519A (en) * | 2021-11-19 | 2022-03-08 | 宜春学院 | Sports is with protection knee-pad |
-
2019
- 2019-09-04 CN CN201921465479.0U patent/CN210747384U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113134826A (en) * | 2021-05-28 | 2021-07-20 | 金陵科技学院 | Knee joint power assisting device |
| CN114145519A (en) * | 2021-11-19 | 2022-03-08 | 宜春学院 | Sports is with protection knee-pad |
| CN114145519B (en) * | 2021-11-19 | 2024-05-24 | 宜春学院 | Protective knee pad for sports |
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