A cardiac wall thickness monitoring device

By using a cardiac wall thickness monitoring device to monitor tissue thickness in real time during the ablation process and generating a calibration matrix using impedance and contact pressure values, the problem of not being able to monitor tissue thickness at low cost in existing technologies is solved, thus improving surgical safety and treatment efficacy.

CN115444547BActive Publication Date: 2025-12-05SHAOXING MAYO XINCI MEDICAL TECH CO LTD
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Patent Information

Application Number
CN202210981155.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-08-16
Publication Date
2025-12-05
Estimated Expiration
2042-08-16

AI Technical Summary

Technical Problem

Existing technologies cannot monitor the tissue thickness of the target ablation site in real time during ablation surgery at low cost, making it difficult to guarantee the safety and quality of the surgery. In addition, traditional measuring devices are expensive.

Method used

The device employs a cardiac wall thickness monitoring system, including a medical catheter, an impedance meter, and a computing processing unit. A calibration matrix is ​​generated through a calibration matrix generator. The system monitors tissue thickness in real time using impedance and contact pressure values, and sets alarm thresholds for ablation energy and time.

Benefits of technology

This technology enables low-cost, real-time monitoring of cardiac wall thickness, improving the safety and effectiveness of ablation procedures while reducing surgical costs.

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Abstract

The application provides a heart wall thickness monitoring device, which comprises a medical catheter in direct contact with a heart wall, an impedance measuring instrument and a computing processing device storing a calibration matrix, wherein the medical catheter is used for generating an electric signal and measuring a contact pressure value of the medical catheter in direct contact with the heart wall; the impedance measuring instrument is electrically connected with the medical catheter and is used for converting the electric signal into an impedance value; the computing processing device is electrically connected with the medical catheter and the impedance measuring instrument, receives the contact pressure value and the impedance value, and finds a data group closest to the contact pressure value and the impedance value in the calibration matrix, and the heart wall thickness in the data group is the monitored heart wall thickness. The application realizes the problem of low-cost real-time monitoring of the tissue thickness of a target ablation site in an ablation operation process, and based on the real-time monitored tissue thickness, the ablation energy and the ablation duration of the medical catheter in the ablation process can be determined, so that the operation safety and the ablation treatment effect are improved.
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