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CN-121370193-B - Electroencephalogram signal detection device, control method, signal processing system and storage medium

CN121370193BCN 121370193 BCN121370193 BCN 121370193BCN-121370193-B

Abstract

The embodiment of the application relates to the technical field of medical equipment and discloses an electroencephalogram signal detection device, a control method, a signal processing system and a storage medium, wherein in the electroencephalogram signal detection device, a first control unit can directly control a second contact set in a signal processing unit to apply first electrical stimulation for blocking the first electroencephalogram signal according to a first electroencephalogram signal acquired by the first contact set in the signal processing unit which is electrically connected with the first control unit, and the first electrical stimulation for blocking the first electroencephalogram signal is timely carried out; the second control module can determine a propagation change area of the first electroencephalogram according to the propagation change trend of the historical electroencephalogram in space and the first area to be detected, output a control instruction to a second contact in the target signal processing unit corresponding to the propagation change area, instruct the second contact to apply electric stimulation, and block the propagation of the first electroencephalogram to the propagation change area where the target signal processing unit is located in advance.

Inventors

  • ZHAO GUOGUANG
  • CAO PENG
  • SHAN YONGZHI

Assignees

  • 首都医科大学宣武医院
  • 杭州诺为医疗技术有限公司

Dates

Publication Date
20260505
Application Date
20251223

Claims (20)

  1. 1. The electroencephalogram signal detection device is characterized by comprising a signal processing module, a first control module and a second control module, wherein the signal processing module comprises at least two signal processing units which are respectively used for processing electroencephalogram signals of different areas to be detected, the first control module comprises at least two first control units which are respectively and electrically connected with the signal processing units and the second control module, The first control unit is used for controlling a second contact in the signal processing unit to apply first electrical stimulation for blocking the first electroencephalogram signal according to a first electroencephalogram signal acquired by a first contact group in the signal processing unit which is electrically connected with the first control unit and sending first information to the second control module, wherein the first information indicates a first area to be detected corresponding to the signal processing unit; the second control module is used for executing the following operations: receiving at least one group of historical electroencephalogram signals sent by each processing sub-module in the first control module, wherein each group of historical electroencephalogram signals comprises at least three historical electroencephalogram signals; determining the propagation change trend of the historical electroencephalogram signals in space according to the acquisition time, the signal strength and the corresponding areas to be detected of the at least three historical electroencephalogram signals; Determining a propagation change region of the first electroencephalogram signal according to the propagation change trend and the first region to be detected, wherein the acquisition time of the historical electroencephalogram signal is earlier than that of the first electroencephalogram signal; And outputting a control instruction to a second contact in the target signal processing unit, wherein the region to be detected corresponding to the target signal processing unit is a propagation change region of the first region to be detected, and the control instruction is used for indicating the second contact in the target signal processing unit to apply electric stimulation.
  2. 2. The electroencephalogram signal detection apparatus according to claim 1, wherein the first contact group includes at least three first contacts, and the second contact is circumferentially disposed by the at least three first contacts.
  3. 3. The electroencephalogram signal detection apparatus according to claim 1 or 2, wherein the signal processing unit further comprises a material storage subunit for releasing stored materials under the control of the first control unit.
  4. 4. The electroencephalogram signal detection apparatus according to claim 1, wherein the determining the propagation variation trend according to the collection time, the signal strength, and the corresponding region to be detected of the at least three historical electroencephalogram signals includes: determining a target electroencephalogram signal with strongest signal intensity and/or earliest acquisition time in the at least three historical electroencephalogram signals; Taking a region to be detected corresponding to the target electroencephalogram signals as a signal source region in the at least three historical electroencephalogram signals; and taking the signal source area as a transmission starting point, and sequentially connecting the areas to be detected corresponding to the historical electroencephalogram signals according to the trend from the early to the late of the acquisition time of other electroencephalogram signals except the target electroencephalogram signals in the at least three historical electroencephalogram signals or the trend from the strong to the weak of the signal strength of the other electroencephalogram signals, so as to obtain the transmission variation trend.
  5. 5. The electroencephalogram signal detection apparatus according to claim 1, wherein the determining the propagation variation trend according to the collection time, the signal strength, and the corresponding region to be detected of the at least three historical electroencephalogram signals includes: Determining causal relationship strength between any two of the at least three historical electroencephalogram signals according to a preset causal analysis algorithm; and sequentially connecting the areas to be detected corresponding to the historical electroencephalogram signals according to the sequence from strong to weak of the causal relationship strength, so as to obtain the propagation change trend.
  6. 6. The apparatus according to claim 1, wherein the determining the propagation change region of the first electroencephalogram signal according to the propagation change trend and the first region to be detected includes: determining a target propagation change trend associated with the first region to be detected in the propagation change trend; And determining the region related to the target propagation change trend as the propagation change region by taking the first region to be detected as a propagation start point.
  7. 7. The electroencephalogram signal detection apparatus according to claim 1, wherein the controlling of the second contact in the signal processing unit to apply the first electrical stimulus for blocking the first electroencephalogram signal comprises: And controlling a first contact in a first contact group in the signal processing unit to serve as a cathode for applying the first electrical stimulus, and controlling a second contact in the signal processing unit to serve as the cathode for applying the first electrical stimulus, so as to apply the first electrical stimulus.
  8. 8. The electroencephalogram signal detection apparatus according to claim 1 or 2, wherein a diameter range of a first contact in the first contact group is 0.3 to 0.5 mm, and a center distance between the first contacts is 0.5 to 1.0 mm; The first contact is made of platinum-black plated or titanium-nitrided platinum-iridium alloy.
  9. 9. The electroencephalogram signal detection apparatus according to claim 8, wherein, The first contact having a diameter of 0.3 mm is used for detecting a high frequency oscillating signal having a frequency in the range of 80-500 Hz.
  10. 10. The electroencephalogram signal detection apparatus according to claim 1 or 2, wherein the power consumption of the first control module is lower than the power consumption of the second control module.
  11. 11. An electroencephalogram signal control method, which is characterized in that the electroencephalogram signal control method is applied to the electroencephalogram signal detection device according to any one of claims 1 to 10, and comprises a signal processing module, wherein the signal processing module comprises at least two signal processing units respectively used for processing electroencephalogram signals of different areas to be detected, and the method comprises the following steps: Controlling a second contact in the signal processing unit to apply first electrical stimulation for blocking the first brain electrical signal according to the first brain electrical signal acquired by the first contact set in the signal processing unit; The method comprises the steps of receiving at least one group of historical electroencephalogram signals sent by each processing sub-module in a first control module, wherein each group of historical electroencephalogram signals comprises at least three historical electroencephalogram signals, and determining the propagation change trend of the historical electroencephalogram signals in space according to the acquisition time, the signal strength and the corresponding region to be detected of the at least three historical electroencephalogram signals; Determining a propagation change region of the first electroencephalogram signal according to the propagation change trend and a first region to be detected corresponding to the signal processing unit, wherein the acquisition time of the historical electroencephalogram signal is earlier than that of the first electroencephalogram signal; And outputting a control instruction to a second contact in the target signal processing unit, wherein the region to be detected corresponding to the target signal processing unit is a propagation change region of the first region to be detected, and the control instruction is used for indicating the second contact in the target signal processing unit to apply electric stimulation.
  12. 12. The electroencephalogram signal control method according to claim 11, wherein the first contact group includes at least three first contacts, and the second contact is circumferentially disposed by the at least three first contacts.
  13. 13. The method according to claim 11 or 12, wherein the signal processing unit further includes a material storage subunit, and the method further includes: And controlling the material storage subunit to release the stored materials.
  14. 14. The method according to claim 11, wherein determining the propagation variation trend according to the collection time, the signal strength, and the corresponding region to be detected of the at least three historical electroencephalograms includes: determining a target electroencephalogram signal with strongest signal intensity and/or earliest acquisition time in the at least three historical electroencephalogram signals; Taking a region to be detected corresponding to the target electroencephalogram signals as a signal source region in the at least three historical electroencephalogram signals; and taking the signal source area as a transmission starting point, and sequentially connecting the areas to be detected corresponding to the historical electroencephalogram signals according to the trend from the early to the late of the acquisition time of other electroencephalogram signals except the target electroencephalogram signals in the at least three historical electroencephalogram signals or the trend from the strong to the weak of the signal strength of the other electroencephalogram signals, so as to obtain the transmission variation trend.
  15. 15. The method according to claim 11, wherein determining the propagation variation trend according to the collection time, the signal strength, and the corresponding region to be detected of the at least three historical electroencephalograms includes: Determining causal relationship strength between any two of the at least three historical electroencephalogram signals according to a preset causal analysis algorithm; and sequentially connecting the areas to be detected corresponding to the historical electroencephalogram signals according to the sequence from strong to weak of the causal relationship strength, so as to obtain the propagation change trend.
  16. 16. The method according to claim 11, wherein the determining the propagation change region of the first electroencephalogram signal according to the propagation change trend and the first region to be detected includes: determining a target propagation change trend associated with the first region to be detected in the propagation change trend; And determining the region related to the target propagation change trend as the propagation change region by taking the first region to be detected as a propagation start point.
  17. 17. The method according to claim 11, wherein the controlling the second contact in the signal processing unit to apply the first electrical stimulus for blocking the first brain electrical signal includes: And controlling a first contact in a first contact group in the signal processing unit to serve as a cathode for applying the first electrical stimulus, and controlling a second contact in the signal processing unit to serve as the cathode for applying the first electrical stimulus, so as to apply the first electrical stimulus.
  18. 18. The electroencephalogram signal control method according to claim 11 or 12, characterized in that a diameter of a first contact in the first contact group ranges from 0.3 to 0.5 mm, and a center distance between the first contacts ranges from 0.5 to 1.0 mm; The first contact is made of platinum-black plated or titanium-nitrided platinum-iridium alloy.
  19. 19. The method for controlling brain wave signals according to claim 18, wherein, The first contact having a diameter of 0.3 mm is used for detecting a high frequency oscillating signal having a frequency in the range of 80-500 Hz.
  20. 20. A signal processing system comprising the electroencephalogram signal detection apparatus according to any one of claims 1 to 10.

Description

Electroencephalogram signal detection device, control method, signal processing system and storage medium Technical Field The embodiment of the application relates to the technical field of medical instruments, in particular to an electroencephalogram signal detection device, a control method, a signal processing system and a storage medium. Background An Electroencephalogram (EEG) is a system in which postsynaptic potentials generated by a large number of neurons in synchronization with each other are summed up when the brain is active. It records the changes in electrical waves during brain activity, which is the overall reflection of the electrophysiological activity of brain nerve cells on the surface of the cerebral cortex or scalp, and may also be referred to as electroencephalogram or brain wave. By detecting the brain electrical signal, the electrophysiological activity of the brain nerve cell can be known, for example, whether the potential of the brain nerve cell is a resting potential or not can be determined. By intervening with the electroencephalogram signal acquisition device (e.g., outputting electrical stimulation), subsequently detected electroencephalogram signals can be affected, for example, such that the potential of brain nerve cells tends to rest potential. However, the current way of intervening on the electroencephalogram signal acquisition equipment is not flexible enough. Disclosure of Invention The embodiment of the application provides an electroencephalogram signal detection device, a control method, a signal processing system and a storage medium, which are used for solving the problem that in the prior art, the mode of intervening an electroencephalogram signal acquisition device is not flexible enough. In order to solve the problems, the embodiment of the application discloses an electroencephalogram signal detection device which comprises a signal processing module, a first control module and a second control module, wherein the signal processing module comprises at least two signal processing units which are respectively used for processing electroencephalogram signals of different areas to be detected, the first control module comprises at least two first control units which are respectively and electrically connected with the signal processing units and the second control module, The first control unit is used for controlling a second contact in the signal processing unit to apply first electrical stimulation for blocking the first electroencephalogram signal according to a first electroencephalogram signal acquired by a first contact group in the signal processing unit which is electrically connected with the first control unit and sending first information to the second control module, wherein the first information indicates a first area to be detected corresponding to the signal processing unit; the second control module is used for executing the following operations: Determining a propagation change region of the first electroencephalogram signal according to the propagation change trend of the historical electroencephalogram signal in space and the first region to be detected, wherein the acquisition time of the historical electroencephalogram signal is earlier than that of the first electroencephalogram signal; And outputting a control instruction to a second contact in the target signal processing unit, wherein the region to be detected corresponding to the target signal processing unit is a propagation change region of the first region to be detected, and the control instruction is used for indicating the second contact in the target signal processing unit to apply electric stimulation. The embodiment of the application also discloses an electroencephalogram signal control method which is applied to the electroencephalogram signal detection device, wherein the electroencephalogram signal detection device comprises a signal processing module, the signal processing module comprises at least two signal processing units which are respectively used for processing the electroencephalogram signals of different areas to be detected, and the method comprises the following steps: Controlling a second contact in the signal processing unit to apply first electrical stimulation for blocking the first brain electrical signal according to the first brain electrical signal acquired by the first contact set in the signal processing unit; Determining a propagation change region of the first electroencephalogram signal according to a propagation change trend of the historical electroencephalogram signal in space and a first region to be detected corresponding to the signal processing unit, wherein the acquisition time of the historical electroencephalogram signal is earlier than that of the first electroencephalogram signal; And outputting a control instruction to a second contact in the target signal processing unit, wherein the region to be detected corresponding to the target s