Electroencephalogram cap

Abstract

The invention relates to an electroencephalogram cap and a method for establishing a three-dimensional head-shaped electroencephalogram and a brain oxygen distribution map. The electroencephalogram cap comprises a cap body and a control circuit, wherein the cap body is formed by two ear part supporting bodies, a top supporting rod, a front part supporting rod and a back part supporting rod; two ends of the top, front and back part supporting rods are respectively arranged on the two ear part supporting bodies; the top, front and back part supporting rods span places over the head, in front of the head and behind the head from left to right; the top supporting rod is in a cross-connection with N electrode fixing rods; the electrode fixing rods, the front part supporting rods and the back part supporting rods are all equipped with brain electrodes; and the brain electrodes are connected with the control circuit. The method for establishing electroencephalogram and the brain oxygen distribution map forms a scalp surface three-dimensional model according to the electroencephalogram cap and position parameters of the scalp surface, and then obtains an electroencephalogram and a brain oxygen distribution map matched with a practical head shape. The electroencephalogram cap is convenient to use and can accurately collect signals and has strong anti-interference capability; and the electroencephalogram and the brain oxygen distribution map achieved according to the method has great authenticity.

Description

technical field [0001] The invention relates to an electroencephalogram monitoring device, in particular to an electroencephalogram cap. Background technique [0002] Brain waves are formed by the sum of the synchronous post-synaptic potentials of a large number of neurons when the brain is active. It is the overall reflection of the electrophysiological activities of brain nerve cells on the surface of the cerebral cortex or scalp. The monitoring of brain waves has been widely used. in existing clinical practice. [0003] In traditional brainwave monitoring equipment, the wearing process of brain electrodes is very complicated, and the operation process is cumbersome and lengthy. Under normal circumstances, the patient should first wash his hair the day before the examination to remove the head oil; during the examination, first wear a special elastic cap on the head, and then use a comb to separate the hair where the brain electrodes are placed, exposing the scalp , wipe...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is: due to the small electrode body, it is very troublesome to replace the water-absorbing material, gauze and rubber ring, especially when there are many patients, there is no time to replace them one by one, and it is impossible to replace them one by one, which is easy to cause infection. Cross-infection is more likely to occur in patients with trauma

[0013] C. The connection between the traditional brain electrode support plate and the electrode beam is realized through the movable bolt, but the movable bolt can only use the supporting plate to move in a certain angle with the movable bolt as the center of the circle. In actual use, the moving direction of the supporting plate It moves in any direction with the change of head shape of different patients, which leads to poor auxiliary electrode fixation

[0014] D. Traditional brain electrodes can only be applied to EEG caps made of soft materials (hard materials can easily cause the placed brain electrodes to fall off when adjusting the position of the brain electrodes, making it more difficult for doctors to work), so they cannot Suitable for automatic EEG caps made of hard materials

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