Balloon Ablation Catheter Alignment Using 3D Vein Axis Guidance
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Solution Overview
Problem
Achieving precise alignment between a balloon ablation catheter, sheath, and target pulmonary vein is difficult and critical for effective ablation, with existing methods lacking quantitative guidance and automation.
Innovation Solution
A 3D visualization system using EP mapping systems like CARTO enables alignment by quantifying the spatial relationship between the catheter, sheath, and vein anatomy, allowing for automated robotic alignment through navigation and deflection maneuvers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual alignment techniques are used for balloon ablation catheter, then ease of operation is maintained, but manufacturing precision (alignment accuracy) deteriorates
Solution Approach 1:
A navigation system serves as an intermediary tool that provides real-time spatial information about the catheter, sheath, and vein anatomy. The system displays quantitative alignment data and guidance cues that mediate between the operator's manual manipulation and the required precise alignment, enabling accurate positioning without requiring expert manual skill alone
Solution Approach 2:
The navigation system provides continuous feedback to the operator by displaying the current spatial relationship between the catheter, sheath, and target vein in real-time. Alignment guidance information is dynamically updated based on the actual positions detected by sensors, allowing iterative adjustment to achieve precise linear alignment
2Manufacturing precision
If automated robotic alignment is implemented, then manufacturing precision (alignment accuracy) is improved, but device complexity increases
Solution Approach 1:
The navigation system is designed to perform multiple functions: it provides 3D visualization of anatomical structures, tracks catheter and sheath positions in real-time, calculates spatial relationships, generates alignment guidance, and can control robotic maneuvers. This multi-functionality consolidates what would otherwise require separate systems into a single integrated platform
Solution Approach 2:
The system replaces manual mechanical alignment techniques with an automated navigation-based approach. Instead of relying on operator dexterity and anatomical knowledge alone, the system uses electronic sensors, computational algorithms, and robotic control to achieve precise alignment, substituting mechanical skill with automated intelligence
3Manufacturing precision
If quantitative alignment guidance is provided, then manufacturing precision (alignment accuracy) is improved, but loss of information (operator decision burden) increases
Solution Approach 1:
The navigation system provides different levels of information density at different stages of the alignment process. During initial positioning, the system displays comprehensive 3D anatomical data and spatial relationships. As alignment progresses, the interface dynamically adjusts to highlight only the critical alignment parameters and guidance cues needed for the current task, reducing information overload
Data Source
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AI summary
A system and method for achieving linear alignment between elements in a procedure are disclosed. The system and method include determining the axis of a first element, such as the ostium (110), of a plurality of elements utilized in the procedure, determining the axis of a second element, such as a catheter, of the plurality of elements utilized in the procedure, and aligning the determined axis of the first element and the determined axis of the second element. The method may include further determining the axis of a third element, such as a sheath (130) of the catheter, of the plurality of elements utilized in the procedure and aligning the determined axis of the third element with the aligned axis of the first element and the aligned axis of the second element.