Method and device for generating photoelectric stimulation pulses

A technology of pulse generation and light stimulation, which is applied in phototherapy, electrotherapy, radiation therapy, etc., can solve the problems of adjusting stimulation intensity, low precision of muscle control, and prone to muscle fatigue, so as to improve the large error and overcome false triggering. Effect

Active Publication Date: 2022-05-13
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Early nerve stimulation for motor function remodeling mostly used pre-set pulse sequences in the program. The stimulation mode was single and the stimulation intensity could not be adjusted according to the nerve signal, which made the control precision of the muscles low and the muscles were prone to fatigue.

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  • Method and device for generating photoelectric stimulation pulses
  • Method and device for generating photoelectric stimulation pulses
  • Method and device for generating photoelectric stimulation pulses

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Embodiment Construction

[0066] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0067] figure 1 It is a schematic diagram of the application of the photoelectric stimulation pulse generation algorithm of the present invention.

[0068] see figure 1, the present invention samples the nerve signal near the brain end of the damaged nerve, and carries out filtering preprocessing to it with a sliding window, for example, carries out band-pass filtering to the nerve signal by an IIR digital band-pass filter (infinite impulse response filter), and the passband The range is 10Hz to 3kHz, and the closed-loop feedback adaptive dynamic threshold method is used to estimate the amplitude threshold in the sliding window. When the sampled nerve signal exceeds the amplitude threshold and meets the refractory period condition, a photoelectric stimulation pulse signal is generated to stimulate the corresponding The damaged nerve (target nerve) a...

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Abstract

The invention provides a photoelectric stimulation pulse generation method and device. The basic idea is that, according to the nerve signal near the brain of the damaged nerve, when the nerve signal exceeds a certain amplitude threshold and meets the refractory period condition, a photoelectric stimulation pulse is generated to stimulate the corresponding damaged nerve (target nerve) at the far brain. , so as to induce muscle movement and realize the motor function remodeling of damaged nerves. The present invention uses photoelectric combination stimulation to reduce tissue damage while improving stimulation resolution and realizing precise muscle movement control; at the same time, the frequency of photoelectric stimulation pulses is controlled according to changes in nerve signals, and the intensity of nerve signals is reflected in the stimulation frequency. , by controlling the frequency of photoelectric stimulation pulses, the burst rate of the action potential of the neurons of the target nerve is controlled, thereby controlling the muscles to achieve different degrees of movement.

Description

technical field [0001] The invention relates to the fields of nerve signal processing analysis and nerve stimulation, in particular to a method and device for generating photoelectric stimulation pulses. Background technique [0002] Nerve damage will lead to the loss or reduction of the impulse transmitted by the nerve, so that the muscles innervated by the damaged nerve cannot complete their original contraction function, thus losing the ability to move. Stimulating the damaged nerves through some stimulating pulses can cause the muscles to contract to a certain extent, thereby simulating normal voluntary movements to achieve the purpose of increasing limb mobility and restoring the function of the stimulated muscles or muscle groups, making the damaged nerves move Functional remodeling becomes possible. [0003] Early nerve stimulation for motor function remodeling mostly used pre-set pulse sequences in the program. The stimulation mode was single and the stimulation int...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61N5/06A61N1/36
CPCA61N5/0613A61N1/36014A61N1/36003A61N1/3603A61N1/36031A61N5/0622A61N2005/0626A61N2005/0659A61N2005/0664
Inventor 王磊梁锦威刘洋张建石岩张书源
Owner BEIHANG UNIV
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