Endocardium three-dimension navigation system and navigation method

A navigation system and endocardial technology, applied in the field of surgical navigation system, can solve the problems of complex circuit structure, large calculation error, limited electrode combination mode, etc., and achieve the effect of advanced processing algorithm, high navigation accuracy and simple calibration
CN101147676AActive Publication Date: 2008-03-26SHANGHAI HONGTONG IND LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANGHAI HONGTONG IND LTD
Publication Date
2008-03-26

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Abstract

The present invention discloses an endocardial three-dimensional guide system and guide method. Said system includes excitation device, three pairs of excitation electrodes, catheter position signal obtaining device, respiratory impedance regulating device and cardiac chambers mechanical external form synchronization device. Said excitation device contains digital control logic and constant-current generation module. The above-mentioned catheter position signal obtaining device includes catheter, positioning amplifier, A / D converter, digital demodulator and coordinate converter. Said respiratory impedance regulating device includes body surface electric field signal collecting circuit, positioning amplifier, A / D converter, respiratory data extraction module and respiratory correction module.
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Description

technical field

[0001] The invention relates to an operation navigation system, in particular to a catheter navigation system in the catheter intervention operation of the Department of Cardiology. Background technique

[0002] In cardiology catheter interventional surgery, it is necessary to navigate the catheter through navigation technology. The catheter navigation technology is briefly described as follows: a three-dimensional cardiac cavity model is constructed by obtaining the position signal of the catheter on the endocardium, and the signal position of the catheter is observed on the three-dimensional cardiac cavity model to obtain the actual position of the catheter on the endocardium. The doctor's operation during the operation.

[0003] The existing three-dimensional endocardial navigation method generally includes the following steps: three pairs of excitation electrodes with orthogonal spatial positions are placed on the body surface, and the excitation electro...

Claims

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