CN205094721U

CN205094721U - False foot of integration topography self -adaptation

Info

Publication number: CN205094721U
Application number: CN201520845331.5U
Authority: CN
Inventors: 崔海坡; 张阿龙; 王双情; 陈婷婷; 张梦雪
Original assignee: University of Shanghai for Science and Technology
Current assignee: University of Shanghai for Science and Technology
Priority date: 2015-10-28
Filing date: 2015-10-28
Publication date: 2016-03-23
Anticipated expiration: 2025-10-28

Abstract

The utility model provides a false foot of integration topography self -adaptation for the connection includes to be used for the connection structure continuous with the artificial leg main part in the artificial leg main part, and the instep board that fuses in proper order, heel region and sole, and wholly it has the elastic class of open -ended forward U -shaped structure to form one. The utility model discloses an overall structure adopts the integrated design, and the instep prelaminar part adopts 3 formula structural design, and the branch toe characteristic of fully having imitated the feet of the human body can adapt to rugged and rough road surface better, improves balance sensation and security. Heel region designs and becomes to have elastic C shape keel structure, can absorb the impact force that produces with ground when the heel contacts, foot sole plate body is the arc structure of epirelief, can make the nature steady more of the wearing person walking of false foot.

Description

The false foot of integration terrain self-adaptive

Technical field

This utility model relates to artificial limb, particularly relates to the false foot of a kind of integrated terrain self-adaptive.

Background technology

Because the weight of artificial limb has direct impact to the energy that lower extremity amputation patient moving consumes, thus the effect that patient dresses artificial limb can be had influence on.Therefore, designing and producing in prostheses component process, while taking into full account and meeting patient requests's function, the lower limb accessory lightweight, physical demands can be reduced should selected as far as possible.False foot is as the important composition parts of artificial leg, and its major function supports body weight, and replace the posture of work in order to keep health normally to walk of triceps surae and musculus flexor at the volley.Concerning lower extremity amputee, the weight of false foot and function, will directly affect the walk of amputee, thus determine the quality of artificial limb to a great extent.Especially for older, poor physical capacity, or the patient of the amputation because of disturbance of blood circulation, if the weight of artificial limb is excessive, the stressed excessive of deformed limb can be caused, add the burden of strong limb side simultaneously, even therefore cause both legs amputation, bring bad consequence.So the lightweight how realizing false foot on the basis ensureing false foot function causes the extensive concern of researcher.

At present, the inner frame of artificial limb foot plate generally adopts the making such as timber, rubber, also have minority have employed quality is light, intensity is high carbon fiber, but structural design is not very desirable, wearer is walked and feels still uncomfortable.Although be also proposed the carbon fiber product of some advanced persons abroad, expensive, be not suitable for the consumption of vast patients with amputation, and structure still haves much room for improvement.

Utility model content

The purpose of this utility model, exactly in order to solve the problem, provides a kind of integrated terrain self-adaptive false foot.

In order to achieve the above object, this utility model have employed following technical scheme: the false foot of a kind of integrated terrain self-adaptive, for being connected to artificial leg main body, comprise the syndeton for being connected with artificial leg main body, also comprise the instep plate that order is connected, heel portion and sole, overall formation one has the elastic class U-shaped structure to open front; Described syndeton is arranged on the upper end of heel portion.

Sole is longer than by described instep plate, and its front portion has the arcuate structure upwarped.

The described arcuate structure upwarped is three-chip type structure.

Described heel portion is for having elastic C shape keel structure.

Described sole main body is the arcuate structure of epirelief.

This utility model has following advantage and disadvantage:

1, overall structure adopts integrated design, can one-shot forming, makes simple, not only can simplify the assembling of parts, and solves the problem that each parts easily cause because stress is concentrated in junction destroying, thus improves the safety and reliability of false foot.

2, instep prelaminar part adopts 3 slice structure designs, has fully imitated point toe characteristic of human foot.Compared with designing with one chip in the past or double-disk, rugged road surface can be adapted to better, improve equilibrium sense and safety.

3, for reducing the energy dressed artificial limb patient moving and consume, improve the energy storage characteristic of false foot, heel portion is designed to have elastic C shape keel structure.When heel is from the phase of landing to weight-bearing phase transition, the impulsive force produced when C shape keel structure absorbs heel and earth surface by compression, simultaneously storage power.When heel starts liftoff, the bounce-back of C shape keel structure by the fault offset of storage out, helps false foot to complete and pushes off action.

4, sole main body is the arcuate structure of epirelief, and to imitate the foot arc structure of human body, when foot is from the phase of landing to weight-bearing phase transition, the projection of sole will be driven plain; When foot is from weight-bearing phase to liftoff phase transition, the sole be driven plain will revert to bulge-structure again, be equipped with the arcuate structure design that instep prelaminar part upwarps again simultaneously, the more steadily nature that the wearer of false foot can be made to walk.

Accompanying drawing explanation

Fig. 1 of the present utility modelly faces structural representation;

Fig. 2 is plan structure schematic diagram of the present utility model;

Fig. 3 is side-looking structural representation of the present utility model.

Detailed description of the invention

See Fig. 1, Fig. 2, Fig. 3, the false foot of integrated terrain self-adaptive of the present utility model is for being connected to artificial leg main body, comprise the syndeton 1 for being connected with artificial leg main body, and the instep plate 2 that order is connected, heel portion 3 and sole 4, overall formation one has the elastic class U-shaped structure to open front; Syndeton 1 is arranged on the upper end of heel portion 3.

Sole is longer than by instep plate 2 in this utility model, and its front portion has the arcuate structure upwarped, this arcuate structure upwarped is three-chip type structure, has fully imitated point toe characteristic of human foot, rugged road surface can be adapted to better, improve equilibrium sense and safety.

Heel portion 3 in this utility model is for having elastic C shape keel structure, and the part that top is connected with syndeton 1 is thicker.When heel is from weight-bearing phase to liftoff phase transition, the energy that release self stores by C shape keel structure, helps false foot to complete and pushes off action.

Sole 4 main body in this utility model is the arcuate structure of epirelief.To imitate the foot arc structure of human body, when foot is from the phase of landing to weight-bearing phase transition, the projection of sole 4 will be driven plain; When foot is from weight-bearing phase to liftoff phase transition, the sole 4 be driven plain will revert to bulge-structure again, be equipped with the arcuate structure upwarped of sole front portion more simultaneously, the more steadily nature that the wearer of false foot can be made to walk.

False foot of the present utility model is made by light elastic material is one-body molded, and light elastic material comprises carbon fibre reinforced composite or engineering plastics.

Claims

1. the false foot of integrated terrain self-adaptive, for being connected to artificial leg main body, it is characterized in that: comprise the syndeton for being connected with artificial leg main body, be characterized in: also comprise the instep plate that order is connected, heel portion and sole, overall formation one has the elastic class U-shaped structure to open front; Described syndeton is arranged on the upper end of heel portion.

2. the false foot of integrated terrain self-adaptive as claimed in claim 1, is characterized in that: sole is longer than by described instep plate, and its front portion has the arcuate structure upwarped.

3. the false foot of integrated terrain self-adaptive as claimed in claim 2, is characterized in that: described in the arcuate structure that upwarps be three-chip type structure.

4. the false foot of integrated terrain self-adaptive as claimed in claim 1, is characterized in that: described heel portion is for having elastic C shape keel structure.

5. the false foot of integrated terrain self-adaptive as claimed in claim 1, is characterized in that: described sole main body is the arcuate structure of epirelief.