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A Monophasic Action Potential Recording System

An action potential and recording system technology, applied in the field of electrophysiology, can solve the problems of inaccuracy, cannot exceed 2 minutes, and recording time is short, and achieve the effect of improving accuracy

Active Publication Date: 2019-10-22
CAPITAL UNIVERSITY OF MEDICAL SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] In the prior art, adsorption electrodes are usually used to record single-phase action potentials. In order to make the adsorption electrodes tightly adsorbed on the surface of the heart, it is necessary to maintain a negative pressure of 75-300mmHg, which will affect the Potential damage to the cells, therefore, the recording time at one adsorption site should usually not exceed 2 minutes
[0006] It can be seen that considering the damage to the cells, the recording time of the existing monophasic action potential recording method is very short, resulting in insufficient stability and accuracy of the recording results

Method used

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  • A Monophasic Action Potential Recording System

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Embodiment Construction

[0014] Aiming at the problems existing in the prior art, the present invention proposes an improved single-phase action potential recording system, which is especially suitable for recording isolated hearts. The system includes: an attached electrode and a recording device.

[0015] The attached electrodes are in contact with the isolated heart and connected with the recording device;

[0016] The recording device acquires and records monophasic action potentials of the isolated heart by using attached electrodes.

[0017] Adhesive electrodes consist of a tip and an electrode fluid inside the tip.

[0018] figure 1 It is a schematic diagram of the attached electrode of the present invention, such as figure 1 As shown, the lower part of the suction head is bent into a predetermined angle, and the specific angle can be determined according to actual needs. In addition, the bottom end of the suction head is a smooth slope, which is used to contact the isolated heart.

[0019] ...

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Abstract

The invention discloses a single-phase action potential recording system including an attached electrode and a recording device. The attached electrode is in contact with an isolated heart and is connected with the recording device. The recording device utilizes the attached electrode to acquire and to record single-phase action potentials of the isolated heart. By adopting the scheme provided by the invention, accuracy and the like of recording results can be improved.

Description

technical field [0001] The invention relates to the field of electrophysiology, in particular to a single-phase action potential recording system. Background technique [0002] Monophasic Action Potential (MAP, Monophasic Action Potential) is an action potential recorded from outside the cell, which can accurately reflect the repolarization time course of the transmembrane action potential. [0003] Monophasic action potential recording technology has been widely used at present, and has become an indispensable research technology for basic and clinical researchers. For example, it can be used to detect whether myocardial ischemic changes occur in the heart. [0004] Electrophysiological studies have shown that the amplitude and duration of monophasic action potentials are shortened in areas of myocardial ischemia, while in normal myocardial regions, the amplitude and duration of monophasic action potentials have not changed; in addition, studies have also shown that , the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R29/12
Inventor 刘萍黄海霞王伟赵海燕辛方任杰张思韬钮伟真
Owner CAPITAL UNIVERSITY OF MEDICAL SCIENCES
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