CN202950796U - Function compensation device capable of simulating normal gaits of real person on junction of upper leg and lower leg - Google Patents
Function compensation device capable of simulating normal gaits of real person on junction of upper leg and lower leg Download PDFInfo
- Publication number
- CN202950796U CN202950796U CN 201220601592 CN201220601592U CN202950796U CN 202950796 U CN202950796 U CN 202950796U CN 201220601592 CN201220601592 CN 201220601592 CN 201220601592 U CN201220601592 U CN 201220601592U CN 202950796 U CN202950796 U CN 202950796U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- spring
- bolt
- connecting pin
- piston rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Rehabilitation Tools (AREA)
Abstract
The utility model discloses a function compensation device capable of simulating normal gaits of a real person on the junction of an upper leg and a lower leg. The function compensation device is formed by an upper connecting piece 1, a revolving piece 2, a revolving piece connecting pin 3, a U-shaped fork frame 4, an adjusting ring 5, an elastic body 6, a piston rod 61, a bolt bearing 7A, a bolt bearing 7B, a bolt bearing 7C, a bolt bearing 7D, bearing sleeves 8, a lower shell body 9, a damping cylinder lower connecting pin 10, a lower connecting piece 11, an upper shell body 12, a damping cylinder upper connecting pin 13, a connecting rod 14, a nut 15, a hydraulic support cylinder 16, a fixing sleeve 17, a hydraulic damping cylinder 18 with a spring, an M8 bolt 19, a piston rod 20, a dovetail groove 21, a spring 22, and the like. The function compensation device can assist a thigh amputee to complete a normal walking function, gait curves of the function compensation device are close to or reach the level of a normal gait, high cost performance is achieved, and the function compensation device can replace foreign products in the same type. The function compensation device has good stability and flexibility, the maximum bending angle can be up to more than 150 degrees, and a wearer can complete squat action.
Description
Technical field
This utility model relates to a kind of disability friend for auxiliary above knee amputation, again completes the mechanical substituted device of a kind of auxiliary walking of its normal row stop & go function.According to the functional characteristics of human body knee joint, this mechanical compensating mechanism of developing can compensate the kneed function of patients with amputation, thereby makes them again move towards society.
Background technology
Due to the continuous generation of natural disaster, vehicle accident and other irresistible disasters, make the personage of lower extremity amputation increase gradually.Along with Chinese national economy high speed development in the last few years, the significantly raising of living standard, the urgent hope of this part disabled can change the present situation of self.Reintegrate social requirement for meeting them, improve their self-confidence and quality of life, a kind of artificial limb knee-joint is badly in need of to help them can again recover walking function in society.
At present, this product of domestic development, mostly in rudimentary level, is generally simple four connecting rod frame for movements, and middle and high end product is monopolized by external product mostly, and the research and development of this product can be alleviated the present situation of the external middle end product of serious dependence greatly.By correlation test, study, the technical performance of this product is poor unlike same kind of products at abroad, and some performance also is better than abroad, such as maximum bend angle can reach 150 degree etc.
The utility model content
The purpose of this utility model is to provide a kind of thigh and calf junction function compensation system of human simulation normal gait, this device can simulate human normal gait curve well, and there is good stability and motility, the wearer uses and feels more comfortable, and cost performance is apparently higher than the foreign same type product.
In use, human body artificial limb thigh is connected with upper connector, and the artificial limb shank is connected with lower connector.Because this device joint maximum bend angle can reach more than 150 °, so wearer's attitude of can squatting down, conveniently go to toilet.In addition, the science distribution due to these four position of articulating point in device joint, make stability, the motility in this device joint can reach a reasonable level.
To achieve these goals, this utility model adopts technical scheme:
A kind of thigh and calf junction function compensation system of human simulation normal gait, it is characterized in that, it comprises upper connector 1, revolving meber 2, revolving meber connecting pin 3, U-shaped crotch 4, adjust under circle 5, elastomer 6, piston rod 61, bolt bearing 7A, 7B, 7C, 7D, bearing holder (housing, cover) 8, lower house 9, damped cylinder connecting pin 13, connecting rod 14, nut 15, hydraulic support cylinder 16, fixed cover 17, the hydraulic damping cylinder 18 with spring, M8 bolt 19, piston rod 20, dovetail groove 21, spring 22 on connecting pin 10, lower connector 11, upper shell 12, damped cylinder;
Described upper connector 1 is by the dovetail structure of self lower end, and 21 li of dovetail grooves that are embedded into revolving meber 2 upper ends are then fixing by M8 bolt 19; Revolving meber 2 is connected with U-shaped crotch 4 with upper shell 12 by two couples of bolt bearing 7A, 7B, and revolving meber 2 rotates around two couples of bolt bearing 7A, 7B; Revolving meber 2 is connected with connecting rod 14 upper ends by revolving meber connecting pin 3; Connecting rod 14 lower ends are connected with hydraulic damping cylinder 18 piston rod 20 upper ends with spring by connecting pin on damped cylinder 13; Connecting pin 10 with the damped cylinder 18 of spring by the damped cylinder lower end is connected with lower house 9 inner bottom parts; Damped cylinder 18 with spring is inserted in fixed cover 17, and is screwed on lower house 9; Upper shell 12 is connected by 1 couple of bolt bearing 7C with lower house 9, and can rotate around it; U-shaped crotch 4 is connected with piston rod 61 upper ends of hydraulic support cylinder 16 by nut 15, and adjusting sleeve 5 is connected with U-shaped crotch 4 by screw thread; Elastomer 6 is hollow-core construction, elastomer 6 is enclosed within on the piston rod 61 of hydraulic support cylinder 16; Hydraulic support cylinder 16 is connected with lower house 9 by 1 couple of bolt bearing 7D, and can rotate around bolt bearing 7D.
Described connecting rod 14 respectively by revolving meber connecting pin 3 and connecting pin on damped cylinder 13 by revolving meber 2, be connected with the damped cylinder 18 of spring; Be socketed with spring 22 on piston rod 20, by the regulating action with spring damping cylinder 18 dampings, control the speed that revolving meber rotates around 2 couples of bolt bearing 7A.
The upper open end place of described U-shaped crotch 4 connects by 1 couple of bolt bearing 7A, and U-shaped crotch 4 lower ends are connected with the piston rod upper end of hydraulic support cylinder 16 by nut 15; Adjusting sleeve 5 is connected with U-shaped crotch lower end by screw thread, and the piston rod of hydraulic support cylinder 16 penetrates in elastomer 6; Hydraulic support cylinder 16 is connected with lower house 9 by 1 couple of bolt bearing 7D, and can rotate around lower house 9; Hydraulic support cylinder 16 is equivalent to spring, is subject to the backward lower motion of downward force, after external force is cancelled, can automatically rebound and return to original position.
Described spring damping cylinder 18 lower ends are connected with lower house 9 by connecting pin under damped cylinder 10, and spring damping cylinder 18 is fixed along upper connector 1 and lower connector 11 central axial direction by fixed cover 17; This spring damping cylinder can pass through the damping adjusting size, controls the artificial limb shank speed that swings back and forth.
The four couples of bolt bearing center position A, B, C, tetra-pairs of positions of D are first mounting strap shoulder bearing holder (housing, cover) 8 all, and then four couples of bolt bearing 7A, 7B, 7C, 7D are installed.
Four pairs of nut bearing 7A, 7B, 7C, each relative positions of 7D center position are respectively: AB=26mm, BC=88mm, CD=38mm, AD=75mm.
The contour structure size length and width of this compensation arrangement, thick 225mm, 64.5mm, the 48mm of being respectively.
Effect intentionally of the present utility model is: this device can simulate human normal gait curve well, and has good stability and motility, and the wearer uses and feels more comfortable, and cost performance is apparently higher than the foreign same type product; In use, human body artificial limb thigh is connected with upper connector, and the artificial limb shank is connected with lower connector.Because this device joint maximum bend angle can reach more than 150 °, so wearer's attitude of can squatting down, conveniently go to toilet.In addition, the science distribution due to these four position of articulating point in device joint, make stability, the motility in this device joint can reach a reasonable level.
The accompanying drawing explanation
Fig. 1 is that master of the present utility model looks schematic diagram;
Fig. 2 is the schematic top plan view of Fig. 1;
Fig. 3 is that schematic diagram is looked on the left side of Fig. 1;
Fig. 4 is that schematic diagram is looked in the part of Fig. 1.
Drawing reference numeral: 1, upper connector; 2, revolving meber; 3, revolving meber connecting pin; 4, U-shaped crotch; 5, adjust circle; 6, elastomer; 61, piston rod; 7A, 7B, 7C, 7D bolt bearing; 8, bearing holder (housing, cover); 9, lower house; 10, connecting pin under damped cylinder; 11, lower connector; 12, upper shell; 13, damped cylinder; 14, upper connecting pin; 15, connecting rod nut; 16, hydraulic support cylinder; 17, fixed cover; 18, with the hydraulic damping cylinder of spring; 19, M8 bolt; 20, piston rod; 21, dovetail groove; 22, spring;
The specific embodiment
A kind of thigh and calf junction function compensation system of human simulation normal gait, it is characterized in that, it comprises upper connector 1, revolving meber 2, revolving meber connecting pin 3, U-shaped crotch 4, adjust under circle 5, elastomer 6, piston rod 61, bolt bearing 7A, 7B, 7C, 7D, bearing holder (housing, cover) 8, lower house 9, damped cylinder connecting pin 13, connecting rod 14, nut 15, hydraulic support cylinder 16, fixed cover 17, the hydraulic damping cylinder 18 with spring, M8 bolt 19, piston rod 20, dovetail groove 21, spring 22 on connecting pin 10, lower connector 11, upper shell 12, damped cylinder;
Described upper connector 1 is by the dovetail structure of self lower end, and 21 li of dovetail grooves that are embedded into revolving meber 2 upper ends are then fixing by M8 bolt 19; Revolving meber 2 is connected with U-shaped crotch 4 with upper shell 12 by two couples of bolt bearing 7A, 7B, and revolving meber 2 rotates around two couples of bolt bearing 7A, 7B; Revolving meber 2 is connected with connecting rod 14 upper ends by revolving meber connecting pin 3; Connecting rod 14 lower ends are connected with hydraulic damping cylinder 18 piston rod 20 upper ends with spring by connecting pin on damped cylinder 13; Connecting pin 10 with the damped cylinder 18 of spring by the damped cylinder lower end is connected with lower house 9 inner bottom parts; Damped cylinder 18 with spring is inserted in fixed cover 17, and is screwed on lower house 9; Upper shell 12 is connected by 1 couple of bolt bearing 7C with lower house 9, and can rotate around it; U-shaped crotch 4 is connected with piston rod 61 upper ends of hydraulic support cylinder 16 by nut 15, and adjusting sleeve 5 is connected with U-shaped crotch 4 by screw thread; Elastomer 6 is hollow-core construction, elastomer 6 is enclosed within on the piston rod 61 of hydraulic support cylinder 16; Hydraulic support cylinder 16 is connected with lower house 9 by 1 couple of bolt bearing 7D, and can rotate around bolt bearing 7D.
Described connecting rod 14 respectively by revolving meber connecting pin 3 and connecting pin on damped cylinder 13 by revolving meber 2, be connected with the damped cylinder 18 of spring; Be socketed with spring 22 on piston rod 20, by the regulating action with spring damping cylinder 18 dampings, control the speed that revolving meber rotates around 2 couples of bolt bearing 7A.
The upper open end place of described U-shaped crotch 4 connects by 1 couple of bolt bearing 7A, and U-shaped crotch 4 lower ends are connected with the piston rod upper end of hydraulic support cylinder 16 by nut 15; Adjusting sleeve 5 is connected with U-shaped crotch lower end by screw thread, and the piston rod of hydraulic support cylinder 16 penetrates in elastomer 6; Hydraulic support cylinder 16 is connected with lower house 9 by 1 couple of bolt bearing 7D, and can rotate around lower house 9; Hydraulic support cylinder 16 is equivalent to spring, is subject to the backward lower motion of downward force, after external force is cancelled, can automatically rebound and return to original position.
Described spring damping cylinder 18 lower ends are connected with lower house 9 by connecting pin under damped cylinder 10, and spring damping cylinder 18 is fixed along upper connector 1 and lower connector 11 central axial direction by fixed cover 17; This spring damping cylinder can pass through the damping adjusting size, controls the artificial limb shank speed that swings back and forth.
The four couples of bolt bearing center position A, B, C, tetra-pairs of positions of D are first mounting strap shoulder bearing holder (housing, cover) 8 all, and then four couples of bolt bearing 7A, 7B, 7C, 7D are installed.
Four pairs of nut bearing 7A, 7B, 7C, each relative positions of 7D center position are respectively: AB=26mm, BC=88mm, CD=38mm, AD=75mm.
The contour structure size length and width of this compensation arrangement, thick 225mm, 64.5mm, the 48mm of being respectively.
Wherein with the damped cylinder of spring, can adjust the gait speed that swings back and forth by damping; Shoring can cushion supporting role; Elastomer plays downward cushioning effect.
Human body artificial limb thigh is connected with upper connector 1 by 4 jackscrews, and human body artificial limb shank is also to be connected with lower connector 11 by 4 jackscrews, has so just formed an artificial leg.Upper connector 1 is by the dovetail structure of self, is embedded in the dovetail groove of revolving meber 2 then fixing by 1 M8 bolt 19.Revolving meber 2 is connected with U-shaped crotch 4 with upper shell 12 by 2 pairs of bolt bearings 7 respectively, and revolving meber 2 can rotate around 2 pairs of bolt bearings 7.In addition, revolving meber 2 is connected with connecting rod 14 by revolving meber connecting pin 3.Connecting rod 14 is connected with damped cylinder 18 piston rod ends with spring by connecting pin on damped cylinder 13.Damped cylinder 18 with spring is connected with lower house 9 by connecting pin under damped cylinder 10.In addition, be inserted in fixed cover 17 with the damped cylinder 18 of spring, and be screwed on lower house 9.Upper shell 12 is connected by 1 pair of bolt bearing 7 respectively with lower house 9, and can rotate around it.U-shaped crotch 4 is connected with the piston rod end of hydraulic support cylinder 16 by nut 15, and adjusting sleeve 5 is connected with U-shaped crotch 4 by screw thread.Elastomer 6 is hollow-core construction, and it is inserted in to the piston rod of hydraulic support cylinder 16.Hydraulic support cylinder 16 is connected with lower house 9 by 1 couple of bolt bearing 7C respectively, and can rotate around it.
When user is worn this device walking, human body artificial limb thigh drives revolving meber 2 and rotates, and whole device can be in the bending of upper-lower casing junction under the shank action of gravity.Spring when human body is lifted lower limb on damped cylinder can play the power-assisted effect, helps the user artificial leg to stretch and takes a step.After wearer's step lands, elastomer 6 and hydraulic support cylinder 16 can play the effect of supporting and cushioning, and make wearer's gait approach or be consistent with the human normal gait, and it is very comfortable that the wearer can feel.
Claims (7)
1. the thigh and calf junction function compensation system of a human simulation normal gait, it is characterized in that, it comprises upper connector (1), revolving meber (2), revolving meber connecting pin (3), U-shaped crotch (4), adjust circle (5), elastomer (6), piston rod (61), bolt bearing (7A, 7B, 7C, 7D), bearing holder (housing, cover) (8), lower house (9), connecting pin under damped cylinder (10), lower connector (11), upper shell (12), connecting pin on damped cylinder (13), connecting rod (14), nut (15), hydraulic support cylinder (16), fixed cover (17), hydraulic damping cylinder (18) with spring, bolt (19), piston rod (20), dovetail groove (21), spring (22),
Described upper connector (1) is by the dovetail structure of self lower end, and the dovetail groove (21) that is embedded into revolving meber (2) upper end is inner then fixing by bolt (19); Revolving meber (2) is connected with U-shaped crotch (4) with upper shell (12) by two pairs of bolt bearings (7A, 7B), and revolving meber (2) rotates around two pairs of bolt bearings (7A, 7B); Revolving meber (2) is connected with connecting rod (14) upper end by revolving meber connecting pin (3); Connecting rod (14) lower end is connected with hydraulic damping cylinder (18) piston rod (20) upper end with spring by connecting pin on damped cylinder (13); Connecting pin (10) with the damped cylinder (18) of spring by the damped cylinder lower end is connected with lower house (9) inner bottom part; Damped cylinder (18) with spring is inserted in fixed cover (17), and is screwed on lower house (9); Upper shell (12) is connected by 1 pair of bolt bearing (7C) with lower house (9), and can rotate around it; U-shaped crotch (4) is connected with piston rod (61) upper end of hydraulic support cylinder (16) by nut (15), and adjusting sleeve (5) is connected with U-shaped crotch (4) by screw thread; Elastomer (6) is hollow-core construction, elastomer (6) is enclosed within on the piston rod (61) of hydraulic support cylinder (16); Hydraulic support cylinder (16) is connected with lower house (9) by 1 pair of bolt bearing (7D), and can rotate around bolt bearing (7D).
2. the thigh and calf junction function compensation system of human simulation normal gait according to claim 1, it is characterized in that, described connecting rod (14) respectively by revolving meber connecting pin (3) and connecting pin on damped cylinder (13) by revolving meber (2), be connected with the damped cylinder (18) of spring; Be socketed with spring (22) on piston rod (20), by the regulating action of band spring damping cylinder (18) damping, control the speed that revolving meber rotates around 2 pairs of bolt bearings (7A).
3. the thigh and calf junction function compensation system of human simulation normal gait according to claim 2, it is characterized in that, the upper open end place of described U-shaped crotch (4) connects by 1 pair of bolt bearing (7A), and U-shaped crotch (4) lower end is connected with the piston rod upper end of hydraulic support cylinder (16) by nut (15); Adjusting sleeve (5) is connected with U-shaped crotch lower end by screw thread, and the piston rod of hydraulic support cylinder (16) penetrates in elastomer (6); Hydraulic support cylinder (16) is connected with lower house (9) by 1 pair of bolt bearing (7D), and can rotate around lower house (9); Hydraulic support cylinder (16) is equivalent to spring, is subject to the backward lower motion of downward force, after external force is cancelled, can automatically rebound and return to original position.
4. the thigh and calf junction function compensation system of human simulation normal gait according to claim 3, it is characterized in that, described spring damping cylinder (18) lower end is connected with lower house (9) by connecting pin under damped cylinder (10), and spring damping cylinder (18) is fixed along upper connector (1) and lower connector (11) central axial direction by fixed cover (17); This spring damping cylinder can pass through the damping adjusting size, controls the artificial limb shank speed that swings back and forth.
5. the thigh and calf junction function compensation system of human simulation normal gait according to claim 4, it is characterized in that, four pairs of bolt bearings (7A, 7B, 7C, 7D) center position A, B, C, tetra-pairs of positions of D are first mounting strap shoulder bearing holder (housing, cover) (8) all, and then four pairs of bolt bearings (7A, 7B, 7C, 7D) are installed.
6. the thigh and calf junction function compensation system of human simulation normal gait according to claim 5, it is characterized in that, each relative position of four pairs of nut bearings (7A, 7B, 7C, 7D) center position is respectively: AB=26mm, BC=88mm, CD=38mm, AD=75mm.
7. the thigh and calf junction function compensation system of human simulation normal gait according to claim 1, is characterized in that, the contour structure size length and width of this compensation arrangement, thick 225mm, 64.5mm, the 48mm of being respectively.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201220601592 CN202950796U (en) | 2012-11-14 | 2012-11-14 | Function compensation device capable of simulating normal gaits of real person on junction of upper leg and lower leg |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201220601592 CN202950796U (en) | 2012-11-14 | 2012-11-14 | Function compensation device capable of simulating normal gaits of real person on junction of upper leg and lower leg |
Publications (1)
Publication Number | Publication Date |
---|---|
CN202950796U true CN202950796U (en) | 2013-05-29 |
Family
ID=48456394
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 201220601592 Expired - Lifetime CN202950796U (en) | 2012-11-14 | 2012-11-14 | Function compensation device capable of simulating normal gaits of real person on junction of upper leg and lower leg |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN202950796U (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102961202A (en) * | 2012-11-14 | 2013-03-13 | 国家康复辅具研究中心 | Thigh and shank junction function compensation device capable of simulating normal gait of real people |
CN107007381A (en) * | 2017-04-14 | 2017-08-04 | 张策 | Artificial limb |
CN107670263A (en) * | 2017-11-22 | 2018-02-09 | 哈尔滨体育学院 | A kind of single leg disabled person winter sports servicing unit |
US9992933B2 (en) * | 2016-02-15 | 2018-06-12 | David Payne | Attachment assembly for hydraulically actuated rams of a shaker head |
CN114948357A (en) * | 2022-05-24 | 2022-08-30 | 哈尔滨工业大学 | Bionic knee joint with variable rigidity |
-
2012
- 2012-11-14 CN CN 201220601592 patent/CN202950796U/en not_active Expired - Lifetime
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102961202A (en) * | 2012-11-14 | 2013-03-13 | 国家康复辅具研究中心 | Thigh and shank junction function compensation device capable of simulating normal gait of real people |
US9992933B2 (en) * | 2016-02-15 | 2018-06-12 | David Payne | Attachment assembly for hydraulically actuated rams of a shaker head |
CN107007381A (en) * | 2017-04-14 | 2017-08-04 | 张策 | Artificial limb |
CN107670263A (en) * | 2017-11-22 | 2018-02-09 | 哈尔滨体育学院 | A kind of single leg disabled person winter sports servicing unit |
CN107670263B (en) * | 2017-11-22 | 2018-06-15 | 哈尔滨体育学院 | A kind of list leg disabled person's winter sports auxiliary device |
CN114948357A (en) * | 2022-05-24 | 2022-08-30 | 哈尔滨工业大学 | Bionic knee joint with variable rigidity |
CN114948357B (en) * | 2022-05-24 | 2023-08-04 | 哈尔滨工业大学 | Bionic knee joint with variable rigidity |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN202950796U (en) | Function compensation device capable of simulating normal gaits of real person on junction of upper leg and lower leg | |
CN101912320B (en) | Dynamic below-knee artificial limb containing flexible dynamic ankle joints and toe joints | |
CN103006357B (en) | Active-passive combined low-power-consumption ankle joint prosthesis | |
Johnson et al. | Toe clearance when walking in people with unilateral transtibial amputation: effects of passive hydraulic ankle | |
De Asha et al. | Walking speed related joint kinetic alterations in trans-tibial amputees: impact of hydraulic'ankle’damping | |
WO2003086245A2 (en) | Electronically controlled prosthetic system | |
Gard | Use of quantitative gait analysis for the evaluation of prosthetic walking performance | |
CN108836583B (en) | Active and passive ankle joint prosthesis with variable-rod-length gear five-rod mechanism | |
CN102940542B (en) | Artificial limb ankle joint with four passive degrees of freedom | |
KR20160071661A (en) | Upper limb exoskeleton robot for movement improvement and gravity compensation | |
US3806958A (en) | Thigh prosthesis | |
CN110353949A (en) | A kind of active knee ankle-joint prosthetic device based on change born of the same parents' parallel institution | |
Lawson et al. | Evaluation of a coordinated control system for a pair of powered transfemoral prostheses | |
CN102961202A (en) | Thigh and shank junction function compensation device capable of simulating normal gait of real people | |
CN101856286B (en) | Biped walking robot device for testing performance of lower limb prosthesis | |
CN105167960A (en) | Parallel type lower limb exoskeleton rehabilitation training device | |
CN111084681A (en) | Hydraulic bionic ankle joint | |
Yang et al. | Differences in gait patterns of unilateral transtibial amputees with two types of energy storing prosthetic feet | |
CN206183606U (en) | Low limbs ectoskeleton robot | |
CN104055650A (en) | Interactive paraplegia walking aid external skeleton with horizontal swinging function | |
Lawson et al. | Ground adaptive standing controller for a powered transfemoral prosthesis | |
CN204501524U (en) | A kind of ectoskeleton three-degree of freedom flexible ankle device | |
CN110393609A (en) | A kind of 3D printing joint prosthesis | |
EP1494626A2 (en) | Electronically controlled prosthetic system | |
CN201235218Y (en) | Artificial human model |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20130529 |