Wireless energy supply and wireless acquisition system of nerve tract implanted electrode based on vlsivery large scale integrated circuit

Abstract

The invention relates to a wireless energy supply and wireless acquisition system of a nerve tract implanted electrode based on a vlsivery large scale integrated circuit (VLSI), comprising an internalimplanted circuit device and an external circuit device, wherein the internal implanted circuit device comprises a nerve tract complex potential acquisition circuit, an encode circuit and a 2ASK modulation circuit of a 2ASK modulation device, a rectifying circuit and a voltage stabilizing circuit of a wireless energy transmission receiving circuit, and an internal coupling coil, and the wirelessenergy transmission receiving circuit is manufactured by a VLSI technology; and the external circuit device comprises a 2ASK demodulation circuit, a radio-frequency oscillator and a class-E amplifierof a wireless energy transmission emitting circuit, a circuit board assembled by separate elements and an external coupling coil. The wireless energy supply and wireless acquisition system not only realizes the wireless energy supply of the internal implanted circuit device, but also realizes the wireless transmission of the nerve tract implanted electrode recorded on nerve tract complex potential, and can be used for detecting a peripheral nerve system when an animal does somatic movement in a waking state; and in addition, the power consumption of the wireless energy supply and wireless acquisition system is reduced by manufacturing a wireless energy supply chip and a wireless acquisition system by the VLSI technology.

Description

technical field [0001] The invention belongs to the technical field of human intelligent artificial limb rehabilitation engineering, and in particular relates to a VLSI-based wireless energy supply and wireless collection system for nerve beam implanted electrodes. Background technique [0002] Artificial prosthetics, also known as artificial limbs, are currently a major rehabilitation project serving patients with broken limbs and residual limbs. The control of implanted intelligent prosthetics is inseparable from wireless energy supply technology and communication technology. The invention aims at developing a wireless energy supply VLSI (Very Large Scale Integrated Circuit) chip for a medical implant device, and designing a wireless collection system for nerve weak current signals. Due to the limitations of wiring, networking, environment, infection, etc., the traditional EMG acquisition technology has gradually shown its limitations. With the development of nerve repai...

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Problems solved by technology

[0005] The present invention aims at the nerve bundle implantation electrode in the existing prosthetic experiment research stage. In the in vivo recording experiment, it is necessary to use power wires to connect the acquisition circuit and data wires to connect the acquisition circuit to the computer system, so that the in vivo data acquisition is limited by wiring, Infection, inability to record accurate data of animal activity status, etc., proposed a VLSI-based wireless energy supply and wireless acquisition system for nerve bundle implanted electrodes

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