Alternative wrist-elbow joint prosomatosensory reconstruction method based on nerve electrical stimulation system

Abstract

The invention discloses an alternative wrist elbow joint prosomatosensory reconstruction method based on a nerve electrical stimulation system, and the method comprises the following steps: 1) pasting a discharge stimulation module on the upper arm of a user, and wearing an artificial limb; an angle sensor is arranged in the artificial limb; (2) the angle sensor monitors limb movement posture information of a user and transmits the limb movement posture information to the microcontroller; 3) the microcontroller generates an electrical stimulation mode according to the motion posture information or the electrical stimulation parameter information; and 4) the microcontroller controls the electrical stimulation module to generate electrical stimulation acting on the user according to the electrical stimulation mode, and transmits the electrical stimulation mode to the mobile terminal for display through the data transmission module. According to the invention, the proprioceptive feeling of the user is combined with the motion state of the artificial limb by utilizing the skin superficial feeling mode of the residual limb of the amputee, so that the induced alternative feeling is closer to the natural feeling.

Description

technical field [0001] The invention relates to the field of electrical stimulation, in particular to an alternative wrist-elbow joint proprioceptive reconstruction method based on a nerve electrical stimulation system. Background technique [0002] Amputees will face a series of inconveniences in life due to the lack of limbs. Artificial prosthetic technology aims to provide amputees with a similar experience to a real human hand by simulating the shape or function of a real human hand. The cosmetic prosthesis with artificial appearance is only to provide the amputee with the experience of the complete limb shape, while the functional prosthesis for the purpose of providing normal human hand functions controls the prosthetic activities by collecting input signals to achieve different functions. [0003] In research at home and abroad, upper limb prosthetic technologies with various degrees of freedom have emerged, which can control the movements of fingers, wrists, and elbo...

AI Technical Summary

Problems solved by technology

[0005] 1) The invasive intervention currently used in most laboratories requires the implantation of neuromuscular-electrode interface devices into the residual limbs of amputee patients to stimulate the sensory nerve fibers of the residual limbs in order to restore the limb sensation of amputee patients, but the device implantation Will cause some damage to the body of the amputee

[0006] 2) No proprioceptive feedback reconstruction technology for prosthetic wrist and elbow joints has been seen so far

However, on the basis of motion, there is no prosthetic limb that achieves proprioceptive feedback to provide a richer and finer sensory control experience

[0007] 3) The current encoding of proprioception reconstruction is only suitable for amputees with phantom limb sensation

However, only about 1 / 3 of the amputees retain the phantom limb sensation, and the phantom limb sensation cannot completely correspond to various parts of the upper limbs, which makes this method only suitable for some amputees with phantom limb sensation

This limits the scope of application of this technology to some extent

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