half palm prosthetic hand

Abstract

The invention relates to a half-palm artificial limb hand. The half-palm artificial limb hand is characterized by comprising a continuous body differential box, a receiving cavity and a finger. The continuous body differential box comprises a box body, a wrist strap is fixedly connected to the bottom surface of the box body, a continuous body differential mechanism is arranged inside the box body, and the output end of the continuous body differential mechanism is a plurality of first elastic wires penetrating through the box body. The receiving cavity comprises a cavity body for accommodating a palm, one end of the cavity body is in rotary connection with the box body, and the other end of the cavity body is in rotary connection with the finger. The finger comprises a first knuckle rotatably connected to the cavity body and a second knuckle rotatably connected to the other end of the first knuckle, and a linkage mechanism is arranged on the first knuckle. The first elastic wires are connected with the linkage mechanism. When the first elastic wires exert a pull force to the linkage mechanism, the linkage mechanism drives the first knuckle and the second knuckle to be bent simultaneously.

Description

technical field [0001] The invention relates to a half-palm prosthetic hand, which belongs to the field of medical instruments. Background technique [0002] The majority of hand amputee disabled persons are partial hand amputee. Due to the loss of part of the palm or fingers, the function and appearance of the hand are greatly affected, resulting in a significant reduction in the quality of life of the half-hand disabled. In order to improve the quality of life of the handicapped, related companies and scientific research institutions have developed a variety of prosthetics, including single-free prosthetic hands that have been widely used and multi-free prosthetic hands with humanoid shapes. These prosthetic hands in the prior art generally have the following deficiencies: (1) most of the existing prosthetic hands are designed for the handicapped with integral amputation of the hand, and are not suitable for the handicapped with partial amputation of the hand; (2) ) Exis...

AI Technical Summary

Problems solved by technology

These prosthetic hands in the prior art generally have the following deficiencies: (1) most of the existing prosthetic hands are designed for the handicapped with integral amputation of the hand, and are not suitable for the handicapped with partial amputation of the hand; (2) ) Existing prosthetic hands are mostly powered by batteries, use motors as drive components, and collect myoelectric signals as control signals. The system is relatively complex, the overall quality is large, and the discomfort is high when used; Capacity, the continuous use time of the electric prosthetic hand is limited, and the battery must be charged or replaced before it can be used again after the battery is exhausted; (4) Electricity is limited by the internal structure. beautiful

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