Implantable nerve electrical stimulation device and system

Abstract

The invention discloses an implantable nerve electrical stimulation device which comprises a personal digital assistant (PDA), an in vitro controller, an in vivo stimulator and a stimulation electrode. A user uses the PDA to record the information of an experiment animal, and the working condition of the in vivo stimulator and the stimulation electrode. Stimulation parameters are programmed and are transmitted to the in vitro controller through bidirectional wireless radio frequency communication. Data and energy percutaneous wireless transmission is carried out between the in vitro controller and the in vivo stimulator through in vitro and in vivo coil coupling. The in vivo stimulator is sealed by a biology compatible silicone material, produces a stimulation pulse with specific parameters, and outputs the stimulation pulse to the stimulation electrode which is implanted into an epidural space through operation, so as to carry out spinal cord nerve electrical stimulation. The stimulation electrode is a multi-contact electrode based on a flexible circuit board technology. Insulation package is carried out on a number of gold-plated electrode contacts through polyimide. The device and the system, which are provided by the invention, are used for analgesia and promoting the mechanism study of movement function recovery after spinal cord injury, and can be used for the animal experiment study of the electrical stimulation therapy of Parkinson and other neurological diseases.

Description

Technical field [0001] The invention belongs to the technical field of implantable nerve prostheses, and more specifically, relates to an implantable nerve electrical stimulation device and system. Background technique [0002] Epidural spinal cord stimulation (ESCS) refers to the surgical implantation of electrodes into the dorsal side of the spinal epidural space. The electrical stimulator generates stimulation pulses with specific parameters to stimulate the spinal cord tissue through the electrodes to achieve detection and treatment. the goal of. Since the late 1970s, ESCS has established an important position that cannot be underestimated in the field of chronic intractable pain treatment. In addition to analgesia, ESCS has also been developed for the diagnosis of neurological diseases, suppression of tremor and promotion of motor function recovery, especially It has a positive therapeutic effect on the recovery and reconstruction of walking function in patients with incomp...

AI Technical Summary

Problems solved by technology

The stimulator adopts an in vitro wireless energy supply method and is specially designed for patients. It is mainly used to generate artificial hearing and vision, and is not aimed at the animal experiment application of nerve electrical stimulation therapy. The method of packaging the stimulator with titanium or titanium alloy increases the cost of the device. It cannot well meet the requirements of animal experiments to adjust the stimulation parameters of multiple in vivo stimulators, so it is not suitable for group experiments of animals

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