Method for detecting end-tidal phase, method for respiratory compensation and interventional procedure system

CN116763429BActive Publication Date: 2026-07-14SHANGHAI MICROPORT EP MEDTECH CO LTD

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Patents(China)
Current Assignee / Owner: SHANGHAI MICROPORT EP MEDTECH CO LTD
Filing Date: 2022-03-07
Publication Date: 2026-07-14

AI Technical Summary

Technical Problem

During the localization process of interventional cardiac devices, the patient's respiratory movements cause unstable movement of the device, making it difficult to achieve effective respiratory compensation and affecting the localization accuracy and model accuracy.

Method used

By acquiring the position data of the reference pathway at each sampling time, fitting the first ellipsoid coefficient, and determining the end-respiratory phase based on the end-respiratory threshold, respiratory compensation of the interventional device is performed to reduce the impact of respiration on positioning.

Benefits of technology

This method enables stable selection of benchmark points during the intracavitary modeling process, improving the positioning accuracy of the interventional device and the accuracy of the constructed intracavitary model.

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Abstract

The application provides a breath end phase detection method, a breath compensation method of an interventional device, an interventional surgery system, an electronic device and a storage medium. The breath end phase detection method comprises: in a fitting stage, fitting a first ellipsoid according to position data of a reference channel at each sampling time to obtain first ellipsoid coefficients, and obtaining an end phase judgment threshold according to the obtained first ellipsoid coefficients and a pre-obtained breath end phase threshold; in a detection stage, obtaining position data of the reference channel at a current sampling time, and judging whether the position data of the reference channel at the current sampling time is less than or equal to the end phase judgment threshold, if yes, determining that the current sampling time is in a breath end phase stage. The breath end phase detection method provided by the application can effectively confirm the breath end phase stage. In addition, the breath compensation method provided by the application can realize breath compensation of an interventional device in a movement process, so as to reduce the influence of breath on positioning of the interventional device.

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