Flexible adaptive artificial limb receiving cavity

Abstract

The invention discloses a flexible adaptive artificial limb receiving cavity, which comprises an open flexible receiving cavity inner cavity and a stiff rigid receiving cavity outer cavity, the surface of the receiving cavity inner cavity is provided with a small buckle surface for connecting with the receiving cavity outer cavity, a plurality of bionic sucking discs and air bags which are communicated with each other are arranged on the receiving cavity inner cavity, and the receiving cavity inner cavity makes multi-point contact with the stump of a human body through the bionic sucking discs, and is attached to the stump of the human body in a circle type, a hollow structure and a ventilation hole are respectively arranged in the pressure-free area of the receiving cavity outer cavity and the receiving cavity inner cavity; the outer surface of the receiving cavity outer cavity is vertically provided with a reinforcing rib; one end of the reinforcing rib is connected with an opening at the upper part of the receiving cavity outer cavity. With the aid of the air bag devices, the negative pressure in the bionic sucking discs can be reduced to detach the stump, and when the patient wants to move, the bionic sucking discs can realize the adsorption of the stump through the air bag devices, and the negative pressure strength adjustment and the wearing and taking off of the receiving cavity can be realized anytime and anywhere.

Description

technical field [0001] The invention belongs to the technical field of medical rehabilitation equipment, and in particular relates to a flexible self-adapting artificial limb socket. Background technique [0002] The socket is the most important part of the prosthesis and directly affects the wearing comfort and use effect of the prosthesis. It is the focus and difficulty of the entire prosthesis design and manufacture. It directly contacts with the residual limb, accommodates the residual limb, suspends the prosthesis, and supports the weight of the human body , Transmission of force, control of prosthetic movement. [0003] The ideal prosthesis should be the maximum load-bearing stump, and the amputee should be able to stand on the bottom of the socket with the stump, just like standing on the ground before the amputation, so that the amputee can feel the touch of the ground and use the stump to bear the weight to the greatest extent It is an important condition for prost...

AI Technical Summary

Problems solved by technology

[0005] There is an existing bionic sucker, the open structure of the prosthetic socket uses the bionic sucker, air holes and hollow structure to achieve air permeability during negative pressure suspension, but it is inconvenient to wear, and the bionic sucker is flexible, which is As a result, the adsorption between the bionic suction cup and the surface of the residual limb is not easy to achieve, the stability and adsorption strength of the adsorption cannot be controlled, and it cannot cope with complex situations

When the patient is sensitive to the influence of negative pressure, the above two methods and the existing prosthetic socket technology are difficult to solve the above problems

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