Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Flexible powered below-knee prosthesis

A dynamic and flexible technology, applied in the field of below-knee prosthetics, can solve the problems of unnatural walking speed, stiff forefoot and heel, and easy fatigue of amputees, so as to meet the needs of deformation, good energy storage and shock absorption, and light weight Effect

Active Publication Date: 2013-01-16
北京工道风行智能技术有限公司
View PDF10 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Below-the-knee prostheses currently in use are mainly divided into passive prostheses and active prostheses. The ankle joints of passive prostheses use single-axis ankles or universal ankle joints. The existing problem is that the walking speed cannot follow the amputee's walking speed naturally and freely. And changes, patients are often forced to lean forward to make up for the lack of propulsion ability, making amputee more likely to feel fatigue; active prosthetics are driven by motors, which can provide enough energy for the body to move forward, so as to realize the natural gait of the human body, but The current active prosthetics are relatively simple in the design of ankle prostheses, which cannot meet the needs of users well.
[0003] In addition, most of the prosthetic feet currently used for below-knee prosthetics are made of wood or plastic. Due to the limitation of their own materials, the forefoot and heel of the prosthetic foot are relatively stiff, which cannot meet the deformation requirements of natural gait, affect the walking ability of users, and cannot satisfy patients. The demand for bionic functions of prosthetic products

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Flexible powered below-knee prosthesis
  • Flexible powered below-knee prosthesis
  • Flexible powered below-knee prosthesis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Such as figure 1 , figure 2 As shown, the present invention includes a prosthetic foot 1 and a calf prosthesis 2, and may also include a foot cover 3 wrapped outside the prosthetic foot 1.

[0019] The prosthetic foot plate 1 of the present invention comprises an upper foot plate 11 and a heel elastic piece 12, the front portion of the heel elastic piece 12 is fixedly connected to the middle part of the bottom surface of the upper foot plate 11, and there is an elastic movable space between the rear portion of the heel elastic piece 12 and the upper foot plate 11 , The top surface of the upper foot plate 21 rear portion is provided with a seat 13 .

[0020] Such as image 3 As shown, the foot plate 11 and the heel shrapnel 12 are both made of carbon fiber boards. The carbon fiber boards are made of carbon fiber cloth through the lay-up design of the prior art. The thickness of each section of the carbon fiber board is uniform and the surface is smooth. However, the ...

Embodiment 2

[0023] Such as Figure 4 As shown, this embodiment is basically the same as Embodiment 1, and its difference from Embodiment 1 is that not only a support 13 is provided on the top of the upper foot plate 11, but another support 14 is also provided behind the support 13. . When the bottom end of the screw sleeve 26 passes through the housing 21, it is not fixedly connected to the top of the upper foot plate 11, but hinged on the support 14. This can make the movement between the prosthetic foot plate 1 and the calf prosthesis 2 more flexible.

[0024] In the above two embodiments, if figure 2 As shown, a foot cover 3 corresponding to the shape of the human foot can be arranged on the outside of the prosthetic foot plate 1. The foot cover 3 can be made of polyurethane material, which has properties such as corrosion resistance, wear resistance and electrical insulation.

[0025] In the above embodiments, the motor 23 has an independent power supply device, and the output sha...

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

No PUM Login to View More

Abstract

The invention relates to a flexible powered below-knee prosthesis which is characterized by comprising a prosthesis foot and a prosthesis shank. The prosthesis foot comprises an upper foot made of carbon fiber boards and a heel elastic sheet. The front of the heel elastic sheet is disposed at the middle bottom of the upper foot. An elastic moving space is arranged between the rear of the heel elastic sheet and the upper foot. A support is disposed on the top surface of the upper foot. The prosthesis shank comprises a shell which simulates the shape of a human shank. A motor is fixed in the shell. An output end of the motor is connected with a screw. The screw is connected with a screw sleeve through threads. The bottom end of the screw sleeve penetrates out of the shell and is connected to the top surface of the upper foot. A support column is disposed on the support of the upper foot. The flexible powered below-knee prosthesis is light, flexible, ingenious in ankle design, and widely applicable to various amputation patients.

Description

technical field [0001] The invention relates to a below-knee prosthesis, in particular to a flexible dynamic below-knee prosthesis based on composite materials. Background technique [0002] Below-the-knee prostheses currently in use are mainly divided into passive prostheses and active prostheses. The ankle joints of passive prostheses use single-axis ankles or universal ankle joints. The existing problem is that the walking speed cannot follow the amputee's walking speed naturally and freely. And changes, patients are often forced to lean forward to make up for the lack of propulsion ability, making amputee more likely to feel fatigue; active prosthetics are driven by motors, which can provide enough energy for the body to move forward, so as to realize the natural gait of the human body, but The current active prosthetics are relatively simple in terms of ankle prosthetic design, which cannot well meet the needs of users. [0003] In addition, most of the prosthetic feet...

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
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/62
Inventor 闵学龙曾一民张立群姚立明王启宁
Owner 北京工道风行智能技术有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com