An ultrasonic ablation pressure detection transducer, an ablation catheter, and an ultrasonic ablation system

By installing a first piezoelectric ceramic inside the balloon to directly monitor the pressure, the problem of measurement error in pressure sensors in the prior art is solved, enabling faster and more accurate pressure data feedback and improving the real-time control accuracy of renal artery ultrasound ablation.

CN122398412APending Publication Date: 2026-07-17JIANGSU MEDNOVO MEDICAL GRP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU MEDNOVO MEDICAL GRP CO LTD
Filing Date
2025-01-17
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing renal artery ultrasound ablation systems, the pressure sensor is far from the balloon, which leads to errors between the measurement results and the actual pressure inside the balloon, especially affecting the real-time control accuracy during rapid expansion or decompression.

Method used

The first piezoelectric ceramic of the ultrasonic ablation pressure detection transducer is installed inside the balloon, directly contacting the pressure medium inside the balloon. The pressure inside the balloon is monitored through the first piezoelectric ceramic, providing faster and more accurate pressure data and eliminating measurement errors.

Benefits of technology

It enables a faster and more accurate reflection of the balloon inflation status, avoids measurement errors caused by pressure fluctuations and friction within the long catheter, and provides more stable pressure data.

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Abstract

本发明公开了一种超声消融压力检测换能器、消融导管及超声消融系统,属于医疗器械技术领域,超声消融压力检测换能器包括导电基座,导电基座上设有用于检测压力的第一压电陶瓷和用于超声消融的第二压电陶瓷,第一压电陶瓷和第二压电陶瓷均与导电基座电连接,导电基座作为负极,第一压电陶瓷和第二压电陶瓷分别作为正极。消融导管包括球囊、端帽、内管、外管和超声消融压力检测换能器。超声消融系统包括超声消融主机、接头和消融导管,超声消融主机上设有供接头插接的接口。由于第一压电陶瓷位于球囊内,因此第一压电陶瓷会与球囊内的压力介质直接接触,可以最直接地监测球囊内的压力情况,更快速、准确地反映球囊的膨胀状态,消除测量误差。
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