Head hoop for electroencephalographic biological signal collection

Abstract

The invention relates to a head hoop for electroencephalographic biological signal collection. The head hoop can generate synchronous deformation along with the head size and shape of people and the contact pressure intensity, so that an electrode sensor arranged on the head hoop is enabled to maintain good contact with the head skin of a wearer; a high-quality electroencephalogram is obtained; meanwhile, the head of the wearer cannot generate obvious pressure or load bearing feeling. The head hoop comprises a support ring, a buffer strip, the electrode sensor, a communication circuit and a signal processing unit, wherein the support ring is in an arc shape; during the wearing, the shape of the support ring can be attached to the head of the wearer; the buffer string is fixed on the support ring; the electrode sensor is fixed on the buffer strip, is in contact with the head skin of people and is used for collecting a biological electric signal of the head of the wearer; the communication circuit is connected with the electrode sensor, and transmits the biological electric signal collected by the electrode sensor to the signal processing unit; the signal is processed by the signal processing unit.

Description

technical field [0001] The invention relates to the technical field of electroencephalography, in particular to a headband for collecting electroencephalographic biological signals. Background technique [0002] EEG is a bioelectrical signal generated by the activity of neurons in the human brain. It has been widely used in clinical medicine. It has gradually become a trend to apply EEG technology to the civilian field. The portable EEG acquisition technology currently used in the civilian field The EEG signals of the forehead can be collected through dry electrodes. In order to obtain high-quality EEG signals in the forehead area, it is necessary to ensure that the electrode sensors of the EEG equipment are in good contact with the skin of the head. The current technical approach is to wear a strap or bracket with protruding metal electrodes on the head of the victim. Due to differences in gender, age, etc., different people's head shapes and head circumferences will vary...

AI Technical Summary

Problems solved by technology

However, when wearing, if the applied pressure is too large, indentations will be left on the wearer's head, which will also make the wearer feel uncomfortable. The discomfort will also cause the wearer's thoughts to be unstable, which will affect the collected brain The quality of the electrical signal; if too little pressure is applied, it will result in poor contact and affect the quality of the EEG signal acquisition

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