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An EEG signal detection system and device for anti-electrosurgical interference

An EEG signal and detection system technology, applied in the field of medical instruments, can solve problems such as damage, large electrosurgical interference, and saturation of receiving circuits, and achieve the effect of suppressing interference and ensuring effectiveness and accuracy

Active Publication Date: 2022-02-22
SHENZHEN DELICA MEDICAL EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, the magnitude of the electrotome interference is greatly affected by whether the physiological electrical signal acquisition sensor is placed close to the electrotome, whether it is on the return path between the electrotome and the return electrode, and whether the return electrode plate of the electrotome is in good contact with the human body. Large, and then cause the interference of the electric knife to cause the saturation of the receiving circuit, or even damage
This is especially prominent in conventional EEG machines or anesthesia depth monitors based on the collection of weak human physiological electrical signals. The receiving circuit of the signal is much larger, and the receiving circuit of the EEG signal is more likely to be saturated
In the case of the saturation of the receiving circuit, it is impossible to eliminate the interference of the electrosurgical knife through the method of driving by the human body

Method used

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  • An EEG signal detection system and device for anti-electrosurgical interference
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  • An EEG signal detection system and device for anti-electrosurgical interference

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Embodiment Construction

[0021] The invention provides an EEG signal detection system and device that resists electrotome interference. According to the source and conduction path of the electrotome interference signal, multiple suppression barriers are set up, thereby effectively suppressing the interference generated by the electrotome and ensuring the electroencephalogram signal. Availability and accuracy of acquisition.

[0022] In order to make the object, technical solution and effect of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0023] see figure 1 , the EEG signal detection system anti-electrosurgical interference provided by the present invention includes an electrode sheet 10 for collecting EEG signals, and also in...

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Abstract

The invention discloses an EEG signal detection system and device for resisting electric knife interference. The cable for transmitting EEG signals and the shielding cover for suppressing the radiated electromagnetic interference generated by the electrosurgical knife, the electrostatic suppression module discharges the EEG signals electrostatically and outputs them to the signal amplification module through the electromagnetic suppression filter module, so The signal amplification module amplifies the electroencephalogram signal after electrostatic discharge and outputs it to the digital filter module, and the digital filter module filters the amplified electroencephalogram signal and outputs it for display, and the electromagnetic suppression filter module is used for To suppress the conduction electromagnetic interference generated by the electrosurgical unit, multiple suppression barriers are set according to the source and conduction path of the electrosurgical interference signal, so as to effectively suppress the interference generated by the electrosurgical unit and ensure the effectiveness and accuracy of EEG signal acquisition.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an electroencephalogram signal detection system and device capable of resisting electric knife interference. Background technique [0002] When collecting EEG or ECG signals in clinical practice, a high-frequency electric knife may be needed to intervene in the human body for treatment, for cutting and coagulation. This equipment is a high-power device, and it is known that high-frequency electric knife (300KHZ-500KHZ) is commonly used. And radio frequency electric knife (900KHZ-6MHZ), the power varies with different functions, and the regulations require a maximum power of 350W. This signal is transmitted through the human body surface or internal tissue + radiation in space, which will generate associated disturbance signals. The signal will be superimposed on the bioelectrical sampling electrode, which will lead to sampling errors and even blockage of the sampling ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/369A61B5/31A61B5/30
CPCA61B5/7217A61B5/30A61B5/369
Inventor 韩如泉李敏李兴赵志勇任冠清张明哲
Owner SHENZHEN DELICA MEDICAL EQUIP CO LTD
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