Constant-current electrical stimulation method

A constant current and circuit technology, applied in the field of electrical stimulation, can solve the problems of inconvenient operation and insufficient flexibility, and achieve the effects of good flexibility, cost-effectiveness, and volume reduction

Inactive Publication Date: 2016-02-10
富强
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The existing constant current electrical stimulation method is not flexible enough and inconvenient to operate

Method used

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Embodiment Construction

[0015] As shown in the figure, the present invention includes the following steps.

[0016] The amplitude modulation signal generation method adopts a digital waveform generator, and the waveform generated by the required amplitude modulation signal is digitized into waveform data at a certain sampling rate in advance, and stored in the FLASH of MSP430. According to the stimulation parameters, the data is sent to the on-chip 12-bit-to-analog conversion circuit at a certain frequency, and the required amplitude modulation signal is output.

[0017] The MSP430 device is used for on-chip digital-to-analog conversion of amplitude modulation waveform data, outputs amplitude modulation signals of specific frequency and amplitude, and performs real-time scheduling of system status; and performs square wave signal amplitude modulation and exponential wave conversion through a square wave modulation circuit and a differential circuit.

[0018] The P1.2 port of the MSP430 single-chip mi...

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Abstract

The invention discloses a constant-current electrical stimulation method and belongs to the electrical stimulation technology field. By using the constant-current electrical stimulation method, flexibility is good and operation is convenient. The method comprises the following steps that an amplitude-modulated signal generation mode adopts a digital waveform generator, a waveform generated by a needed amplitude-modulated signal is digitized as a sampling rate in advance, becomes waveform data and is stored into FLASH of MSP430; when stimulation is needed, data corresponding to the waveform is sent to an on-chip 12 bit digital-to-analogue conversion circuit as a certain frequency according to a stimulation parameter and the needed amplitude-modulated signal is output; the MSP430 device is used for carrying out amplitude modulation on on-chip analog-to-digital conversion of the waveform data, outputting the amplitude-modulated signal with a specific frequency and an amplitude and carrying out real-time scheduling of a system state; a square wave modulation circuit and a differentiating circuit are used to carry out square wave signal amplitude modulation and index wave transformation.

Description

technical field [0001] The invention belongs to the technical field of electrical stimulation, and in particular relates to a constant current electrical stimulation method. Background technique [0002] The principle of electrical stimulation therapy is: implant electrodes percutaneously into the spinal canal of the patient, stimulate the spinal cord nerves with pulsed current, and then send weak electrical pulses to the spinal cord through the pacemaker system implanted in the patient's body, blocking the pain signal from the spinal cord to the spinal cord. Brain transmission, thereby relieving stubborn neuropathic pain, allowing patients to restore physical function, and effectively improve the quality of life. During the operation, the experts also installed a "remote control" connected to the implanted device in the patient's body outside the body. The patient can "remote control" independently according to the doctor's order to relieve pain according to the needs in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N1/36
Inventor 富强
Owner 富强
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