Dual-pole cardiac muscle tissue one-way action potential recording electrode

Abstract

The invention discloses a dual-pole cardiac muscle tissue one-way action potential recording electrode. The dual-pole cardiac muscle tissue one-way action potential recording electrode comprises a puncture needle rod, lower endocardium cardiac muscle recording electrode installation holes and middle layer cardiac muscle recording electrode installation holes are formed in the outer wall of the puncture needle rod, a pair of lower endocardium cardiac muscle recording electrode wires and a pair of middle layer cardiac muscle recording electrode wires are arranged in an inner cavity of the puncture needle rod, the front ends of the lower endocardium cardiac muscle recording electrode wires are fixed to the lower endocardium cardiac muscle recording electrode installation holes, the front ends of the middle layer cardiac muscle recording electrode wires are fixed to the middle layer cardiac muscle recording electrode installation holes, and the back ends of the lower endocardium cardiac muscle recording electrode wires and the back ends of the middle layer cardiac muscle recording electrode wires are connected with one ends of four transmission leads; a rigid positioning sleeve is arranged on the outer wall of the puncture needle rod, lower epicardium cardiac muscle recording electrode installation holes are formed in the rigid positioning sleeve, a pair of lower epicardium cardiac muscle recording electrode wires are arranged in the lower epicardium cardiac muscle recording electrode installation holes, the front ends of the lower epicardium cardiac muscle recording electrode wires are formed in the lower epicardium cardiac muscle recording electrode installation holes, and the back ends of the lower epicardium cardiac muscle recording electrode wires are connected with one ends of another two transmission leads. The one-way action potential of three layers of myocardial cells can be recoded at the same time, and the dual-pole cardiac muscle tissue one-way action potential recording electrode is ingenious in structural design, and easy and convenient to use.

Description

technical field [0001] The invention relates to an auxiliary device for recording three-layer myocardial action potential in the field of biology and clinical medicine, in particular to a bipolar myocardial tissue unidirectional action potential recording electrode. Background technique [0002] The myocardium of the heart can be divided into three layers, namely, the subintimal myocardium, the middle myocardium, and the subepicardial myocardium. The electrophysiological properties of the cardiomyocytes that make up the three layers of myocardial tissue are different, especially the action potential duration is inconsistent, and this inconsistency forms the dispersion of repolarization across the wall and the dispersion of refractory period across the wall. Years of research have shown that transmural repolarization and / or increased dispersion of refractory periods are the basis for the formation of many arrhythmias. But for a long time, the synchronization and accurate rec...

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Problems solved by technology

[0006] However, the structures of the above two types of recording electrodes are relatively complex, the volume is too large, and the damage to cardiomyocytes is relatively serious during the recording process.

At the same time, due to the large differences in electrophysiology of different myocardium, the adjustment of the above-mentioned multi-site recording electrodes is easily disturbed by other factors, the recording stability is poor, and it is easy to attenuate

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