IVL Energy Control for Stable Pressure Waves and Vessel Safety
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Solution Overview
Problem
Traditional intravascular lithotripsy systems face challenges in effectively and safely breaking up calcified lesions due to high energy application, which can lead to vessel damage and inconsistent pressure wave generation.
Innovation Solution
The system employs controlled incremental adjustments in voltage and duration to generate electrical arcs between spaced-apart electrodes, using a processor to monitor and adjust energy delivery, ensuring efficient spark generation and stable pressure wave production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high energy is applied to break up calcified lesions, then treatment efficacy is improved, but vessel damage risk increases
Solution Approach 1:
The system dynamically adjusts voltage and pulse duration parameters to optimize the balance between lesion fragmentation effectiveness and vessel wall safety. By modifying electrical parameters in real-time based on tissue response, the system achieves reliable calcified plaque breakdown while minimizing harmful effects on surrounding vascular tissue.
Solution Approach 2:
The system incorporates feedback mechanisms that monitor treatment response and adjust energy delivery accordingly. This allows the system to maintain effective treatment while preventing excessive energy application that could cause vessel damage, resolving the contradiction between treatment efficacy and safety.
2Device complexity
If traditional coarse system controls are used to regulate energy, then device complexity is reduced, but treatment consistency deteriorates
Solution Approach 1:
The control system transitions from static, coarse adjustments to dynamic, fine-grained control of electrical parameters. The system continuously adapts voltage, current, and pulse duration based on real-time conditions, achieving consistent treatment outcomes while maintaining manageable device complexity through automated control algorithms.
3Reliability
If voltage pulses are applied to generate pressure waves, then lithotripsy effectiveness is improved, but pressure output consistency deteriorates
Solution Approach 1:
The system adjusts voltage pulse parameters including amplitude, duration, and interval to optimize pressure wave generation. By carefully controlling these electrical parameters, the system maintains consistent pressure output across multiple pulses while ensuring effective lithotripsy of calcified lesions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances the safety and effectiveness of lithotripsy by maintaining consistent pressure output over multiple pulses, reducing the risk of vessel damage and improving treatment efficacy.
Implementation Method 1
applying electrical arc spaced-apart electrodes disposed within a fluid-filled member to creating flow and pressure waves
Data Source
AI summary
Various embodiments of the systems, methods, and devices are provided for controlled operation of an intravascular lithotripsy system for breaking up calcified lesions in an anatomical conduit. More specifically, control arrangements are disclosed concerning managing and/or providing electrical energy to generate an electrical arc between a set of spaced-apart electrodes disposed within fluid-fillable member are disclosed.