Nervous system magnetic induction electrical stimulation device

Abstract

Disclosed is a nervous system magnetic induction electro-stimulation device, which comprises a stimulator (1), an exciting coil (2), an induction coil (3) and a stimulating electrode (4). The induction coil (3) is positioned in subcutaneous tissues of a patient, and is parallel to the plane of the back of the patient. The stimulating electrode (4) is fixed on the backbone of the patient (5), one end of the stimulating electrode (4) is connected with the induction coil (3), and the other end thereof is in contact with nerves. The exciting coil (2) is positioned outside the patient, and is coaxial with the induction coil (3). The stimulator (1) is placed near the patient for providing the pulse current to the exciting coil (2). The distance between the exciting coil (2) and the induction coil (3) is between 10 and 30mm. when in stimulation, the exciting coil (2) generates a pulse magnetic field under the action of the pulse current provided by the stimulator (1), the magnetic line of force penetrating through the induction coil (3) alters with time, and the induction coil (3) will generate the induction electromotive force and form an electric field on nerves between two electrodes,thereby exciting the nerves.

Description

technical field [0001] The invention relates to a nervous system magnetic induction electrical stimulation device. Background technique [0002] Functional reconstruction after spinal cord injury (SCI) is one of the difficulties in neuroscience research. With the continuous development of microelectronics technology, microprocessing technology and neuroscience, rehabilitation engineering workers have successfully used functional electrical stimulation ( The Functional Electrical Stimulation (FES) system enables patients with spinal cord injury to perform partial functions with their hands and legs, and to obtain a certain degree of control over urination and defecation. In order to achieve the purpose of long-term use, the FES system needs to be implanted in the body, but the problem of the bulky power supply and the need for replacement has always restricted the development of FES. As early as the 1970s, some scholars proposed to use a pair of transmitting and receiving co...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the disadvantages of existing implantable electrical stimulators, which contain a built-in power supply and are bulky, and the direct magnetic stimulation has shallow depth and poor focus. By pre-embedding induction coils and stimulating electrodes in the body, magnetic stimulation The method of increasing the electric field strength on the nerve can be applied to the deep nerve stimulation of the human body

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