Exploring the Solution of Bionic Prosthesis Lacking Perceptual Feedback System: Using Invasive and Non-invasive Techniques

Abstract

The bionic prosthesis is a more advanced research direction in the prosthesis, but there are still many shortcomings. One of them is the lack of an effective perceptual feedback system, which included the feedback of position, force, texture, roughness, temperature, and other environmental information, as well as the information perception ability of the prosthesis itself[1]. This defect limits the normal operation of the prosthesis and endanger the safety of users. By analyzing the sensory feedback mechanism of the human body, it is found in this paper, the main reason for the lack of an effective perceptual feedback system of the bionic prosthesis is that there is no structure connected with the internal nerves of the human body in the mechanical prosthesis. Therefore, the perceptual signals collected by artificial sensors cannot be transmitted to the cerebral cortex by invasive method, or lack specific in vitro devices to stimulate patients to produce specific perceptual feedback by non-invasive methods. At present, through the use of invasive and non-invasive technology, we have mastered the form of electrical stimulation, vibration stimulation, and other forms of perceptual feedback. Due to the larger amount of feedback information, shorter training time than other methods, non-invasive electrical stimulation feedback has become a promising research area in this field.