CN201295305Y

CN201295305Y - Carbon fiber double-side elastic artificial foot core

Info

Publication number: CN201295305Y
Application number: CNU2008201533183U
Authority: CN
Inventors: 崔海坡; 赵改平; 李雷; 沈力行; 黄晶晶; 文丽; 尚昆; 李萌; 徐萌; 周瑜
Original assignee: University of Shanghai for Science and Technology
Current assignee: University of Shanghai for Science and Technology
Priority date: 2008-09-23
Filing date: 2008-09-23
Publication date: 2009-08-26
Anticipated expiration: 2018-09-23

Abstract

The utility model relates to a double-side elastic artificial foot core which comprises an upper board, a lower board and a connecting structure. The utility model is characterized in that the double-side elastic artificial foot core further comprises a U-shaped front keel, a U-shaped back keel; both the upper board and the lower board simulate the arc structure of a normal foot; the upper board and the lower board are fixedly connected through the U-shaped front keel and the U-shaped back keel; and the openings of both the U-shaped front keel and the U-shaped back keel face backwards; and under the combined action of both the U-shaped front keel and the U-shaped back keel, the stepping movement of the whole artificial foot can be easily completed. The lower board of the artificial foot is structurally designed according to the simulation principle, both the front surface and the back surface of the lower board have an arc structure, and the middle part thereof has a bulge, so that a wearer of the artificial fool can walk smoothly, elegantly and naturally in dynamic transitions, such as the transition from the land-touching period to the weight bearing period and the transition from the weight bearing period to the land-leaving period.

Description

The two foot core for artificial foot that play of carbon fiber

Technical field

This utility model relates to a kind of artificial limb, especially a kind ofly makes wearer walking more free and relaxed, near two foot core for artificial foot that play of normal person's walking step state.

Background technology

Because the weight of artificial limb has direct influence to the energy that the lower extremity amputation patient moving is consumed, thereby can have influence on the effect that the patient dresses artificial limb, therefore, in designing and producing artificial limb parts process, should take into full account satisfy the patient and require function in, select lower limb accessory in light weight, as can to reduce physical demands as far as possible.False foot is as the important composition parts of artificial leg, and its major function is to support body weight, and the work of compensatory at the volley triceps surae and musculus flexor is in order to keep the posture of the normal walking of health.Concerning the lower extremity amputee, the weight of false foot and function will directly influence amputee's walk, thereby have determined the quality of artificial limb to a great extent.Especially for older, poor physical capacity, or,, can cause the stressed excessive of deformed limb, increase the burden of strong limb side simultaneously, even therefore caused the both legs amputation, bring bad consequence if the weight of artificial limb is excessive because of the patient of disturbance of blood circulation amputation.So the lightweight that how realizes false foot on the basis that guarantees false foot function has caused the extensive concern of researcher.

At present, the inner frame of the artificial limb sole of domestic production generally adopts making such as timber, rubber, also have minority to adopt the carbon fiber of intensity height, light weight, but structural design is not very desirable, makes the wearer walking feel still uncomfortable.Though also released some advanced carbon fiber products abroad, cost an arm and a leg, be not suitable for vast patients with amputation consumption, and structure remains still to be improved.

Summary of the invention

The purpose of this utility model is to be to overcome above-mentioned weak point, and a kind of intensity height, light weight, good springiness, the comfortable two foot core for artificial foot that play of carbon fiber of walking are provided.

For achieving the above object, this utility model is by the following technical solutions:

A kind of two foot core for artificial foot that plays, comprise upper plate, lower plate, syndeton, be characterized in: also comprise Os Draconis behind U-shaped antitrope, the U-shaped, described lower plate and upper plate are the arcuate structure of the normal sole of imitation, fixedlying connected with Os Draconis behind the U-shaped with the U-shaped antitrope between the upper and lower plate, and behind U-shaped antitrope and the U-shaped Os Draconis opening all backward.

The lower plate front and rear surfaces is arcuate structure, and mid portion is provided with projection.

This utility model beneficial effect is:

1, when heel from phase of landing during to the weight-bearing phase transition, Os Draconis are compressed behind the opening U-shaped backward, the impulsive force that produces in the time of can absorbing heel and contact with ground, thus influence alleviated to deformed limb, knee joint, hip joint and spinal column, and Os Draconis can storage power behind the compressed U-shaped simultaneously.From weight-bearing phase during to liftoff phase transition, the Os Draconis bounce-back discharges energy behind the U-shaped, helps heel to finish liftoff action at heel.

2, for farthest reducing the energy loss in each gait cycle, improve the energy storage ratio of false foot, designed opening U-shaped antitrope backward at the forefoot place, after heeloff, forefoot from the phase of landing to the weight-bearing phase transition, this moment, the U-shaped antitrope was compressed and storage power, when forefoot from weight-bearing phase during to liftoff phase transition, the bounce-back of U-shaped antitrope releases energy, and helps forefoot to finish liftoff action.Thereby the energy loss of each gait cycle can be dropped to minimum, even can not feel tired when making wearer carry out the outdoor activities of long period yet.

3, at the lower plate design aspect of false foot, carry out structural design according to bionic principle fully, its front and rear surfaces is arcuate structure, mid portion has projection, thereby the wearer that can make false foot is in the process of walking, no matter be from the phase of landing to the weight-bearing phase transition, still from weight-bearing phase to liftoff phase transition, all belong to the dynamic transition, gait can more steady, graceful, nature.

4, the agent structure of whole foot core for artificial foot has adopted carbon fibre composite in light weight, that intensity is high, the life-span is long to make, and meets to guarantee false foot function and realize the light-weighted design concept of false foot.

Description of drawings

Fig. 1 is a structural front view of the present utility model;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is the vertical view of Fig. 1;

Fig. 4 is a structural perspective of the present utility model.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment this utility model is further described.

As shown in Figures 1 to 4, the two foot core for artificial foot that play of a kind of carbon fiber, it by lower plate 1, U-shaped antitrope 2, U-shaped after Os Draconis 3, upper plate 4 and syndeton 5 form.Syndeton 5 adopts metal material to make, and other structures all adopt the carbon fibre composite to make.Lower plate and upper plate are the arcuate structure of the normal sole of imitation, Os Draconis after being U-shaped antitrope and U-shaped between the upper and lower plates, and the opening of U-shaped structure is all backward.The upper end of syndeton 5 connects ankle joint, behind upper plate and the U-shaped between the Os Draconis lower end by syndeton 5 be connected, the connection of other structures is all adopted adhesive bond together.Combined effect by Os Draconis before and after the opening U-shaped backward can make false foot finish the whole action that pushes off like a cork.

False underfooting plate carries out structural design according to bionic principle fully, its front and rear surfaces is arcuate structure, mid portion has projection, thereby the wearer that can make false foot in the process of walking, no matter be from the phase of landing to the weight-bearing phase transition, or to liftoff phase transition, all belong to the dynamic transition from weight-bearing phase, gait can more steady, graceful, nature.

Claims

1. one kind pair plays foot core for artificial foot, comprise upper plate (4), lower plate (1), syndeton (5) is characterized in that, also comprises Os Draconis (3) behind U-shaped antitrope (2), the U-shaped, described lower plate (1) and upper plate (4) are the arcuate structure of the normal sole of imitation, between the upper and lower plate (4,1) with the U-shaped antitrope (2) fixedlying connected with Os Draconis (3) behind the U-shaped, and behind U-shaped antitrope (2) and the U-shaped Os Draconis (3) opening all backward.

2. two foot core for artificial foot that plays according to claim 1 is characterized in that described lower plate (1) front and rear surfaces is arcuate structure, and mid portion is provided with projection.