Functional electrical stimulation device and system thereof

A functional electrical stimulation, electrical stimulation technology, applied in the direction of electrotherapy, therapy, medical science, etc., can solve the problems of strong non-stationarity, weak signal, low signal-to-noise ratio, etc.

Active Publication Date: 2019-03-12
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because EEG has the characteristics of weak signal, low signal-to-noise ratio, and strong non-stationarity, there are not only differences among individuals, but also differences within individuals. At present, it is still impossible to use EEG to realize autonomous rehabilitation training.

Method used

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  • Functional electrical stimulation device and system thereof
  • Functional electrical stimulation device and system thereof
  • Functional electrical stimulation device and system thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Please refer to figure 1 , figure 1 It is a schematic structural diagram of a functional electrical stimulation device in an embodiment of the present invention, which includes: a signal acquisition unit 101 , an EEG signal processing unit 102 , a gesture signal processing unit 103 and an electrical stimulation output unit 104 .

[0043] The signal acquisition unit 101 is used to collect electroencephalogram signals and posture signals of target limbs; wherein, the target limbs are limbs that have a motion-related relationship with the joints to be stimulated; the electroencephalogram signals are EEG, and the posture signals include the angle of rotation of the target limbs, Attitude information such as the amplitude of the movement and the acceleration of the movement.

[0044] The EEG signal processing unit 102 is used for processing the EEG signal and judging whether the EEG signal has motor imagery information; when processing the EEG signal, the EEG signal can be ...

Embodiment 2

[0060] Corresponding to the above device embodiments, the embodiment of the present invention also provides a functional electrical stimulation system. The functional electrical stimulation system described below and the functional electrical stimulation device described above can be referred to in correspondence.

[0061] see figure 2 As shown, the system includes the following modules:

[0062] Signal acquisition module 201, signal processing module 202 and functional electrical stimulator 203;

[0063] Wherein, the signal collection module 201 is used to collect EEG signals and attitude signals;

[0064] A signal processing module 202, configured to process the EEG signal and the gesture signal to obtain a trigger signal;

[0065] A functional electrical stimulator 203, configured to receive a trigger signal and output electrical stimulation corresponding to the trigger signal;

[0066] There is a communication connection between the signal acquisition module 201 and th...

Embodiment 3

[0073] In order to facilitate those skilled in the art to better understand the technical solution provided by the embodiment of the present invention, the technical solution provided by the embodiment of the present invention will be described below by taking a specific application scenario where a functional electrical stimulation system stimulates the ankle joint as an example. Detailed description.

[0074] The embodiment of the present invention provides a functional electrical stimulation system controlled by a brain switch based on motor imagery. The system adopts two-level control to realize the human body's movement intention to control the electrical stimulation system: the first-level control: perform signal analysis and processing on the EEG signal , when the system detects that the EEG signal has motor imagery information, such as right-hand motor imagery, the electrical stimulation system is turned on for intentional control; otherwise, when the system detects tha...

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Abstract

The invention discloses a functional electrical stimulation device. The device comprises: a signal acquisition unit used to collect an EEG signal and an attitude signal of a target limb; an EEG signalprocessing unit for processing the EEG signal and determining whether the EEG signal has motion imaginary information or not; an attitude signal processing unit used to process an attitude signal when the EEG signal has the motion imaging information and determine the feature value corresponding to the attitude signal; and an electrical stimulation output unit used to output electrical stimulation corresponding to the characteristic value to a muscle group corresponding to the joint to-be-stimulated. Through the device, the patient's motion intention is transmitted to the muscle group corresponding to the joint to-be-stimulated, a manner that the normal human nerve conveys a motion intention is simulated, and the self-controlled rehabilitation training of the affected limb is carried out.The invention also discloses a functional electrical stimulation system which has the corresponding technical effects.

Description

technical field [0001] The invention relates to the field of auxiliary medical rehabilitation training equipment, in particular to a functional electrical stimulation device and system. Background technique [0002] The frequent occurrence of strokes and traffic accidents has led to an increase in the number of patients with spinal cord injuries year by year. The traditional rehabilitation method is for patients to cooperate with rehabilitation teachers for passive rehabilitation training. This training method does not have a good rehabilitation effect. [0003] For patients with severe hemiplegia, it is necessary to provide a way for users to automatically control and communicate and control the external environment. Studies have found that under the control of external stimuli or voluntary behavior and consciousness, the electroencephalogram (EEG) activity signals produced by the human body show different spatiotemporal patterns, and the EEG signal is a signal that does no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N1/36A61B5/0476
CPCA61N1/36014A61N1/36067A61N1/36135A61B5/7225A61B5/369
Inventor 张虹淼丁世来李娟李伟达孙立宁
Owner SUZHOU UNIV
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