One-way stay wire type flexible prosthetic finger

Abstract

The invention relates to an one-way stay wire type flexible prosthetic finger, which comprises a prosthetic finger body, and the interior of the prosthetic finger body is sealed and can be inflated; adriving rope is arranged on the upper surface of the prosthetic finger body, the prosthetic finger body and the driving rope are both made of flexible materials, a fixing point is arranged at the fingertip of the prosthetic finger body, one end of the driving rope is fixed to the fixing point, and the other end of the driving rope is connected with a motor. The upper surface of the prosthetic finger body is longer than the lower surface in a natural state. Only the driving ropes are arranged on the upper surfaces of the fingers for one-way pulling, and compared with the scheme that the lowersurfaces are pulled or the upper surfaces and the lower surfaces are pulled at the same time, the driving scheme cannot influence grabbing and other actions; the driving rope on the lower surface interferes with an object, so that the gripping effect and function are influenced; and more motors are needed in the scheme of simultaneously pulling the upper surface and the lower surface, so that thecost and the control difficulty are increased.

Description

technical field [0001] The invention belongs to the field of medical rehabilitation equipment, in particular to a one-way pull-wire type flexible prosthetic finger. Background technique [0002] Due to accidents or congenital reasons, many patients lack some or all of their fingers, so they need the help of prosthetic fingers. For the situation of less incomplete fingers, for example, only a small section is incomplete, the existing medical prosthetic fingers can also play a certain practical role; but if there are too many incomplete fingers, they can only play a decorative and aesthetic role, and have no practical function. In addition, there are mechanical prosthetic fingers similar to robots. Such prosthetics use complex mechanical structures such as linkage mechanisms, worm gears, and bevel gears for transmission and control. They are heavy, unsightly, and poor in human-computer interaction. Contents of the invention [0003] Aiming at the defects and deficiencies of...

AI Technical Summary

Problems solved by technology

For the situation where the fingers are less incomplete, for example, only a small section is incomplete, the existing medical prosthetic fingers can still play a certain practical role; but if there are too many incomplete fingers, it can only play a decorative role and has no practical function

In addition, there are mechanical prosthetic fingers similar to robots. These prosthetics use complex mechanical structures such as linkage mechanisms, worm gears, and bevel gears for transmission and control. They are heavy, unsightly, and poor in human-computer interaction.

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