Abnormal pulse delivery protection for pulsed field ablation systems
By introducing a combination of bridge circuit, asynchronous current monitoring circuit and electronic processor in the pulse field ablation system, the detection and prevention of abnormal pulses are achieved, ensuring that treatment current is delivered only under normal circumstances, solving the problem of ventricular external contraction caused by abnormal pulses, and improving the safety and reliability of the system.
CN120358995APending Publication Date: 2025-07-22MEDTRONIC INC
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Patent Information
- Application Number
- CN202380086039.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-12-14
- Filing Date
- 2023-11-28
- Publication Date
- 2025-07-22
AI Technical Summary
Technical Problem
Pulse field ablation systems may experience abnormal pulses when delivering therapeutic currents, resulting in ventricular contraction, which is difficult for the prior art to effectively detect and prevent this situation.
Method used
The bridge circuit and asynchronous current monitoring circuit are used in combination with an electronic processor to detect abnormal pulses and control current delivery, ensuring that the treatment current is delivered to the patient only in the absence of abnormal conditions.
Benefits of technology
It effectively reduces the occurrence of ventricular external contraction and improves the safety and reliability of the pulse field ablation system.
✦ Generated by Eureka AI based on patent content.
Abstract
One aspect provides a pulsed field ablation system that includes a bridge circuit configured to deliver bipolar and dual-phase voltage pulses to a catheter. An asynchronous current monitoring circuit is electrically coupled to the bridge circuit. An electronic processor is coupled to the bridge circuit and the asynchronous current monitoring circuit. The electronic processor is configured to determine if there is an abnormal pulse delivery in the bridge circuit and to control the bridge circuit to deliver a therapeutic current to the catheter when there is no abnormal pulse delivery. The electronic processor is further configured to inhibit the bridge circuit from delivering a therapeutic current to the catheter when there is the abnormal pulse delivery.
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