A variable rigidity prosthetic foot with the characteristics of human transverse arch
A variable stiffness, lateral technology, applied in artificial legs and other directions, to achieve the effect of high stiffness, increased support and propulsion, comfort, and increased comfort
Active Publication Date: 2021-08-10
JILIN UNIV
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The purpose of the present invention is to address the shortcomings of the existing prosthetic feet, and provide a rigid prosthetic foot with the characteristics of the transverse arch of the human body. The overall rigidity of the prosthesis is changed by using the change of the center of gravity of the human body during walking to meet the needs of different stages in the walking process. Different demands on the overall stiffness of the prosthetic foot
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0023] The present invention is described below in conjunction with accompanying drawing.
[0024] Such as Figure 1 to Figure 3 As shown, the present invention is composed of heel carbon fiber plate A, forefoot carbon fiber plate B, expansion assembly C, connector D, bolt group I1, bolt group II2, bolt group III3 and bolt group IV4, and the heel carbon fiber plate A is reinforced The top vertical part I5a of the heel carbon fiber plate 5 is fixed to the rear side plane of the connector D through the bolt group I1, and the toe bifurcation part 6d of the full-length heel carbon fiber plate 6 in the heel carbon fiber plate A is fixed to the front through the bolt group IV4. The toe arc part I9d of the right forefoot carbon fiber plate 9 in the palm carbon fiber plate B and the toe arc part II10d of the left forefoot carbon fiber plate 10 in the forefoot carbon fiber plate B; the top of the full-length heel carbon fiber plate 6 in the heel carbon fiber plate A is straight Part 6...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A rigid prosthetic foot plate with the characteristics of the transverse arch of the human body belongs to the technical field of artificial limb manufacturing. The invention consists of a carbon fiber plate for the heel, a carbon fiber plate for the forefoot, an expansion component and a connecting piece, and combines the characteristics of the transverse arch of the human foot plate. During the process, the center of gravity of the human body changes, and the overall rigidity of the prosthetic foot is changed in conjunction with the mechanical action of the expansion component, so that when the user stands statically, the transverse curvature of the forefoot carbon fiber plate is small, the stiffness is small, and the overall foot is soft to adapt to changes in different road surfaces. Stability and comfort; when the footboard is kicked off the ground during dynamic walking, the lateral curvature of the forefoot carbon fiber plate becomes larger, and the stiffness becomes larger, which improves the transmission efficiency of the ground reaction force and has a better supporting and propulsive effect on walking. The invention can reduce the material used of the carbon fiber board, reduce the overall weight of the foot plate prosthesis and reduce the product price, and at the same time increase the propulsion propulsion function and comfort during the use of the prosthesis.
Description
technical field [0001] The invention belongs to the technical field of artificial prosthetics, and in particular relates to a rigid prosthetic foot combined with the characteristics of the longitudinal arch of the human foot and the characteristic of the transverse arch. Background technique [0002] Prosthetics are suitable for patients with amputations due to diseases, accidents and other reasons. They are specially designed and manufactured with the help of engineering technology to make up for the functional loss caused by the missing limbs of amputee patients. In the prior art, the main body of the prosthetic foot is usually made of carbon fiber board, and the general fiber arrangement methods include plain weave and twill weave. When making traditional carbon fiber prosthetic feet, the main direction of carbon fiber fibers is designed with the longitudinal arch characteristics of the human foot as the main reference, that is, the main direction of carbon fiber is the l...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/66
CPCA61F2/66A61F2002/665A61F2002/6657A61F2002/6664A61F2002/6671
Inventor 任雷薛益峰王坤阳钱志辉修豪华梁威
Owner JILIN UNIV