Implantable nerve stimulator

Abstract

The invention discloses an implantable nerve stimulator, which carries out communication and electric energy receiving with an external energy controller through a radio frequency way. The implantable nerve stimulator comprises a master control chip, a stimulator antenna, an impedance matching circuit of the stimulator antenna, a rectification energy storage circuit, a modulation / demodulation circuit, an electrode interface and one or a plurality of stimulating electrodes, wherein the master control chip comprises a master control CPU, a master control memory and a digital-to-analogue conversion current source circuit; the stimulator antenna and the impedance matching circuit of the stimulator antenna are in radio frequency coupling with the external energy controller; the rectification energy storage circuit extracts electric energy from a received input signal and stores the electric energy; the modulation / demodulation circuit extracts control information including clinical stimulation parameters from the received input signal; the electrode interface distributes a stimulating pulse sequence to each corresponding stimulating electrode; the master control memory stores the received information; the digital-to-analogue conversion current source circuit generates the stimulating pulse sequence according to the clinical stimulation parameters; and the master control CPU controls operation of the implantable nerve stimulator. The implantable nerve stimulator can avoid treatment failure caused by radio frequency communication interruption or unsmooth radio frequency communication.

Description

technical field

[0001] The invention relates to an implanted nerve stimulator, which forms a nerve stimulation system together with an external energy controller through radio frequency communication. In particular, the present invention relates to an implantable neurostimulator with a master chip. Background technique

[0002] Neurostimulation systems incorporating implantable neurostimulators have been widely used in the medical field. In this system, an implantable neurostimulator is implanted in the patient to achieve treatment of the affected area.

[0003] Traditional implantable neurostimulators require their own batteries for power. When the battery dies, the neurostimulator implanted in the patient needs to be removed so the battery can be reinstalled. In addition, when doctors need to change the treatment plan, they also need to remove the neurostimulator implanted in the patient in order to reconfigure the treatment plan. The treatment scheme includes, for exa...

Images