Integral light and beautiful myoelectric hand

Abstract

The invention relates to an integral light and beautiful myoelectric hand; the root of a prosthetic hand thumb skeleton metacarpale is provided with two passive joints, wherein one joint enables a prosthetic hand thumb to be passively rotated to a grasping state, i.e. be opposite to the other four fingers or a relaxed state, i.e. be in the same direction of the other four fingers, and the other joint enables the thumb to be passively opened to a grasping functional position or passively closed to the position which enables a prosthetic hand to appear relaxed; a micro motor only drives the index finger and the middle finger so that the structure is simplified and light-weighted; a battery seat, a passive wrist rotator, a myoelectric signal output interface and a power switch of the prosthetic limb are arranged on the wrist to form an integral finished product together with the hand; a charged battery can be taken out and fully inserted into the wrist of the prosthetic limb, so that the use is convenient and the appearance is aesthetic; and the invention not only has the functions of myoelectric hand but also has the aesthetics of a beautification hand, has the advantages of ingenious design, simple structure, convenient installation and use, aesthetics and lifelikeness, meets higher requirements of a user on the myoelectric hand, and is applicable to large-scale popularization and application.

Description

technical field [0001] The invention relates to the technical field of electric artificial limbs, in particular to the technical field of myoelectrically controlled prosthetic hand, and specifically refers to an integrated light and beautiful myoelectric hand. Background technique [0002] Myoelectric hand is currently an advanced prosthetic product that can be provided to people with upper limb loss, but many users hope that this kind of prosthesis will be lighter and more beautiful and realistic. [0003] The myoelectric hand is a functional prosthetic hand. The thumb is in a grasping position opposite to the other four fingers. The myoelectric hand cannot make the artificial hand in a relaxed state, which is not beautiful enough. The mechanical part is also relatively heavy. The mechanical volume of the palm makes the palm thicker, which cannot fit into the thinner hand skin (glove) that completely simulates the shape of the palm. Therefore, the user needs to equip anothe...

AI Technical Summary

Problems solved by technology

[0003] The myoelectric hand is a functional prosthetic hand. The thumb is in a grasping position opposite to the other four fingers. The myoelectric hand cannot make the artificial hand in a relaxed state, which is not beautiful enough. The mechanical part is also relatively heavy. The mechanical volume of the palm makes the palm thicker, which cannot fit into the thinner hand skin (glove) that completely simulates the shape of the palm. Therefore, the user needs to equip another non-functional cosmetic hand. The cosmetic hand is relatively light in weight and has a natural posture. At present, the two kinds of artificial limbs at home and abroad can only meet different requirements

[0004] In addition, because the myoelectrically controlled prosthetic hand uses a rechargeable battery, the battery is usually embedded outside the prosthetic arm for replacement and charging, which makes the prosthetic arm thicker and affects the appearance

If the battery is placed in the prosthesis, although the appearance is improved, the disadvantage is that the prosthesis must be removed and connected to the charger when charging. At this time, the prosthesis cannot be used, and the user needs to wait on the sidelines, wasting time

[0005] Because at present at home and abroad, the battery holder of the myoelectrically controlled prosthesis and the myoelectric hand are two parts, when installing the myoelectrically controlled forearm prosthesis product for the amputee, it is necessary to install the battery holder on the external socket (forearm tube), or to install the battery It is troublesome to put it into the external socket, install the charging interface and power switch on the external socket, and connect the battery holder to the prosthetic circuit

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