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Photoelectric stimulation pulse generation method and device

A pulse generation and electrical stimulation technology, applied in the field of photoelectric stimulation pulse generation, can solve the problems of adjusting stimulation intensity, low muscle control accuracy, and single stimulation mode, etc., and achieves the effect of overcoming false triggering and improving large errors.

Active Publication Date: 2021-05-28
BEIHANG UNIV
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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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  • Photoelectric stimulation pulse generation method and device
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  • Photoelectric stimulation pulse generation method and device

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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 a neural signal of a near-brain end of a damaged nerve, when the neural signal exceeds a certain amplitude threshold value and meets a non-stress condition, a photoelectric stimulation pulse is generated to stimulate a corresponding damaged nerve (target nerve) of a far-brain end, so that muscle movement is induced, and motor function remodeling of the damaged nerve is realized. Photoelectric combined stimulation is used, tissue damage is relieved, meanwhile, the stimulation resolution is improved, and accurate muscle movement control is achieved; meanwhile, the frequency of the photoelectric stimulation pulse is controlled according to the change of the neural signal, the intensity of the neural signal is reflected in the stimulation frequency, and the frequency of the photoelectric stimulation pulse is controlled to control the burst rate of the action potential of the neurons of the target nerve, so that the muscle is controlled to realize 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 Applications(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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