Inflatable electrode system suitable for measuring human body electric signals

Abstract

The invention discloses an inflatable electrode system suitable for measuring human body electric signals. The inflatable electrode system mainly comprises a gas pressure controlling system, a flexible support belt, a disposable self-adhesion electrode, an elastic air bag, an air guide tube, an electrode lead and the like. The gas pressure controlling system can be used for controlling the extension and contraction of the elastic air bag, so that self-adhesion gel on electrodes is prevented from being contacted with skin in advance before sticking, each electrode can be well contacted with skin after sticking, and the electrodes can be stuck rapidly, accurately and effectively. The inflatable electrode system is suitable for the application requirement of a human body electric signal measuring system which is provided with a large quantity of electrodes and requires long-time monitoring.

Description

technical field [0001] The invention relates to a bioelectrical signal measuring device, in particular to an electrode system for human body electrical signal collection. The system connects the electrodes required for measurement with a special inflatable airbag, and controls the airbag through an automatic inflation control unit. In the inflated state, the electrodes in the system are closely connected with the human body, meeting the requirements for measuring electrical signals of the human body. Background technique [0002] In metal conductors, electric current is formed by the directional movement of free electrons, while in living organisms, electric current is generated by the directional movement of positive and negative ions in body fluids or tissues. In the measurement of bioelectrical signals, the electrodes convert the ionic current in the human body into electronic current in the electronic circuit while picking up the electrical signal of the human body. The...

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Problems solved by technology

However, the disadvantage of this method is that due to the irregularity of the shape of the human skull, the pressure between the electrode and the skin is high in the place with a large curvature of the scalp, which will cause great pain or even local ischemia and necrosis during long-term measurement; Insufficient local pressure, resulting in poor electrode contact; and in some depressions, the electrode may not be in contact with the skin at all

Similar to the brain electrode cap, although this electrode belt can improve the efficiency of electrode placement and the positioning accuracy of the electrodes to a certain extent, it cannot guarantee the uniformity and comfort of the electrode paste effect

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