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Transcranial magnetic field stimulator stimulus strength modulating method and device therefor

A technology of intensity modulation and stimulator, applied in magnetic therapy, equipment, electrotherapy, etc., can solve the problems of sudden and monotonous stimulation effect, decline of treatment effect, and less change, so as to achieve rich changes, not easy to adapt and tolerate sex, feeling fresh effect

Inactive Publication Date: 2008-08-06
WUHAN YIRUIDE MEDICAL EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The current magnetic field stimulators only have single stimulation and sequence (plexus) stimulation with constant intensity in the stimulation. The stimulation effect makes people feel sudden and monotonous, with few changes and discomfort. Healing Effect Decreased

Method used

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  • Transcranial magnetic field stimulator stimulus strength modulating method and device therefor
  • Transcranial magnetic field stimulator stimulus strength modulating method and device therefor
  • Transcranial magnetic field stimulator stimulus strength modulating method and device therefor

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] Description of the marks in Figure 1: 1-High voltage charging power supply, 2-Charging current limiting resistor, 3-Energy storage capacitor, 4-Reverse freewheeling diode, 5-SCR switch, 6-Stimulation coil, 7-Microcomputer controller , 8-upper sampling resistor, 9-lower sampling resistor, 10-comparator.

[0021] In Fig. 2, the waveform in the upper row is a general sequence (plexus) waveform, the middle row is a sinusoidal intermodulation waveform, and the lower row is a sinusoidal continuous modulation waveform.

[0022] In Figure 3, the upper row is a square wave modulation waveform, the middle row is a triangular wave modulation waveform, and the lower row is a sawtooth modulation waveform.

[0023] In Figure 4, the upper row is the modulation waveform of the trapezoidal wave, the middle row is the modulation waveform of the ladder wave, and t...

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Abstract

The invention relates to a method used in modulating the stimulation intensity of transcranial magnetic field stimulators and a device thereof, which is characterized in that: various changing modulation waves and changing stimulating frequencies are given off by a microcomputer controller simultaneously; the voltage of an energy dumped capacitor reaches to the given value of modulation waves by the sampling of a sampling circuit and the controlling of the comparator in charging of the energy dumped capacitor; magnetic field output energy changes with the transformation of modulation waves and carrier waves and becomes dual-dynamic amplitude and frequency modulation wave through the triggering of a thyristor electronic switch by the microcomputer controller. The method used in modulating the stimulation intensity of transcranial magnetic field stimulators and a device thereof cause the output intensity of the magnetic field to change momentarily, and causes the induced current in vivo to change along with the output intensity of the magnetic field. The output wave type modulated dynamically with a plurality of parameters enriches the change of magnetic field stimulation, has a fresh feeling, uneasy to generate adaptability and tolerability, thus improving the treatment efficacy.

Description

technical field [0001] The invention relates to a stimulation intensity modulation method and device of a transcranial magnetic field stimulator, a transcranial magnetic field stimulator with output modulation function, the output current of the stimulation coil is serialized, modulated and diversified, and the output parameters are controlled by computer programs. Magnetic field stimulator. Background technique [0002] Transcranial magnetic field stimulation is a pulse current of thousands of amperes passing through the stimulation coil instantaneously (200 microseconds). According to the principle of electromagnetic induction, a pulse magnetic field perpendicular to the plane of the coil is generated around the coil. The transient magnetic field can pass through the scalp and skull without loss. The opposite induced current from the stimulation coil is generated inside the brain. If the intensity of the current reaches the threshold potential of the nerve fiber, it can ca...

Claims

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Application Information

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IPC IPC(8): A61N2/04A61N2/00G06Q50/00G06F19/00
Inventor 孙逸华夏正才余维新廖家华葛康
Owner WUHAN YIRUIDE MEDICAL EQUIP
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