Shock Wave Catheter Power Source Segmentation
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Solution Overview
Problem
Existing shock wave catheter systems for treating calcified lesions in body lumens face inefficiencies due to the use of a single power source for both bubble creation and arc creation, leading to energy inefficiency and a larger footprint for the power source.
Innovation Solution
The implementation of a power source with two separate voltage sources: a bubble generation voltage source and an arc generation voltage source, allowing for independent control and operation, thereby optimizing energy use and reducing the size of the power source.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single power source is used for both bubble creation and arc generation, then the device structure is simpler, but energy efficiency deteriorates and the power source size increases
Solution Approach 1:
The single power source is segmented into two separate power sources: a first power source for bubble creation and a second power source for arc generation. This segmentation allows each power source to be optimized for its specific function, improving overall energy efficiency while maintaining manageable device complexity through modular architecture
2Device complexity
If a single power source is used for both bubble creation and arc generation, then the device structure is simpler, but the power source footprint increases
Solution Approach 1:
The power source is divided into two separate units with dedicated functions. Each unit can be compactly designed for its specific purpose, reducing the overall footprint compared to a single oversized power source that must accommodate both functions
Solution Approach 2:
The bubble creation function and arc generation function are extracted from a single power source into separate power sources. This extraction allows each function to have its own optimized, space-efficient power supply, reducing the total area required
3Device complexity
If a single power source is used for both bubble creation and arc generation, then the device structure is simpler, but independent control capability deteriorates
Solution Approach 1:
The control system is segmented into independent control circuits for each power source. The first power source can be controlled independently for bubble creation, and the second power source can be controlled independently for arc generation, enabling precise timing and optimization of each phase without compromising the other
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 configuration enables more efficient use of energy, reduces the size and complexity of the power source, and allows for precise control over bubble generation and arc creation, enhancing the effectiveness of shock wave generation for treating calcified lesions.
Implementation Method 1
The lower voltage can be configured to induce electrolysis of a fluid that surrounds the pair of electrodes of the shock wave catheter system for generating and growing a bubble
Implementation Method 2
the arc generation voltage source can then be engaged to provide a high-voltage electrical pulse to the electrodes of the shock wave catheter system, thereby generating an arc (i.e., spark) across the electrodes
Implementation Method 3
This discharge creates one or more rapidly expanding vapor bubbles that generate the acoustic shock waves. These shock waves propagate radially outward and modify calcified plaque within the blood vessels
Data Source
AI summary
Described herein are systems and methods for implementing a power source for a shock wave catheter system, the power source including two separate voltage sources: a bubble generation voltage source and an arc generation voltage source. In one or more examples, the power source can be configured such that the bubble generation voltage source provides a lower voltage to a pair of electrodes of the shock wave catheter system. The lower voltage can be configured to induce electrolysis of a fluid that surrounds the pair of electrodes of the shock wave catheter system for generating and growing a bubble. Once a bubble has formed, the arc generation voltage source can then be engaged to provide a high-voltage electrical pulse to the electrodes of the shock wave catheter system, thereby generating an arc (i.e., spark) across the electrodes.