Cryogenic Ablation Balloon Controller for Consistent Lesion Lines
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing cryogenic ablation systems for treating cardiac arrhythmias face challenges in achieving consistent lesion lines around the pulmonary vein due to lack of continuous contact, leading to incomplete electrical impulse blockage.
Innovation Solution
A cryogenic ablation catheter system with a controller that regulates the pressure and volume of cryogenic fluid to an ablation balloon, using a servo valve and manifold system to ensure precise delivery and absorption of thermal energy for effective tissue ablation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing cryogenic ablation systems are used, then ablation therapy can be delivered, but continuous contact around the pulmonary vein circumference cannot be maintained, resulting in inconsistent lesion lines
Solution Approach 1:
The catheter system incorporates dynamic positioning capabilities with adjustable contact pressure and real-time feedback mechanisms, allowing the operator to maintain continuous contact around the pulmonic vein circumference. The system can adapt to tissue variations and maintain optimal ablation contact dynamically during the procedure.
Solution Approach 2:
The system includes feedback mechanisms that monitor contact quality and ablation progress in real-time, enabling the operator to adjust positioning and pressure to maintain consistent lesion lines around the pulmonary vein. This feedback loop ensures continuous effective contact throughout the ablation therapy.
2Reliability
If ablation energy is applied to create lesion lines, then electrical impulse blockage is achieved, but incomplete blockage occurs due to lack of continuous contact
Solution Approach 1:
The catheter system enables dynamic adjustment of contact pressure and positioning to ensure continuous wrapping around the pulmonic vein. This dynamic control ensures complete circumferential contact, resulting in consistent and complete electrical impulse blockage without gaps or inconsistencies in the lesion line.
3Productivity
If cryogenic fluid pressure is not regulated, then ablation can proceed, but thermal energy delivery becomes imprecise, reducing ablation effectiveness
Solution Approach 1:
The system incorporates pressure sensors and feedback control mechanisms that continuously monitor and regulate cryogenic fluid pressure during ablation. This ensures precise thermal energy delivery to the target tissue, maintaining optimal ablation effectiveness while preventing overheating or insufficient cooling.
Solution Approach 2:
The system dynamically adjusts cryogenic fluid pressure parameters based on real-time feedback from pressure sensors and ablation progress monitoring. This parameter control ensures precise thermal energy delivery throughout the ablation procedure, optimizing both productivity and precision.
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
The system achieves consistent and complete electrical impulse blockage by maintaining continuous contact and controlled cryogenic fluid pressure, enhancing the efficacy of ablation therapy for cardiac arrhythmias.
Implementation Method 1
a cryogenic fluid undergoes a phase change from a liquid to a gas when it enters the ablation balloon
Implementation Method 2
the ablation balloon delivers a cryogenic ablation therapy to target tissue
Implementation Method 3
the ablation balloon delivers a cryogenic ablation therapy to target tissue
Data Source
AI summary
The instant disclosure relates to electrophysiology catheter for tissue ablation. In particular, the instant disclosure relates to a system controller for facilitating an ablation therapy at a cryogenic ablation balloon. In an embodiment, an ablation an ablation catheter system comprising a catheter shaft including proximal and distal ends, a catheter handle coupled to a proximal end of the catheter shaft, a cryogenic ablation ballon coupled to the distal end of the catheter shaft, the ablation ballon configured and arranged to deliver a cryogenic ablation therapy to target tissue, an ablation system controller coupled to the catheter handle.