Magnetic Catheter Alignment for Transcaval Access
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Solution Overview
Problem
Current methods for accessing the arterial side from the venous side, such as transcaval access, face challenges due to the complexity and safety concerns associated with traversing the distance between the inferior vena cava and the aorta, limiting broad adoption and requiring specialized equipment.
Innovation Solution
A catheter system utilizing magnetic elements aligned along the longitudinal axis of two catheters to align and approximate body lumens, allowing for the creation of an access pathway by positioning magnetic catheters in corresponding body lumens and using a guidewire to establish a connection between them, facilitating procedures like transcatheter aortic valve replacement and ventricular assist device implantation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional transcaval access methods are used to traverse from the inferior vena cava to the aorta, then arterial access can be achieved, but the procedure becomes complex and safety concerns increase
Solution Approach 1:
Magnetic elements are introduced as an intermediary force to align and approximate the IVC and aorta, enabling safer and simpler access between these vessels without requiring complex traditional puncture techniques
Solution Approach 2:
The patent replaces complex mechanical puncture and navigation systems with a magnetic field-based alignment system, where magnets embedded in catheters or delivery systems automatically guide positioning through magnetic attraction, reducing procedural complexity and improving safety
2Ease of operation
If the distance between the inferior vena cava and the aorta is traversed using conventional methods, then access is established, but specialized equipment and complex procedures are required
Solution Approach 1:
Magnetic elements serve as an intermediary mechanism that simplifies the approximation of body lumens, making the procedure more accessible and easier to perform without requiring highly specialized equipment or expertise
Solution Approach 2:
The magnetic alignment system can be integrated into various catheter and delivery system designs, providing a universal approach that works across different procedural contexts and reduces the need for specialized equipment
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 method simplifies and enhances the accessibility of arterial access from the venous side, enabling safer and more efficient procedures by aligning lumens and establishing a stable access pathway, thereby broadening the applicability of transcaval access techniques.
Implementation Method 1
A catheter system utilizing magnetic elements aligned along the longitudinal axis of two catheters to align and approximate body lumens
Data Source
AI summary
Some embodiments are directed to magnetic puncture access and delivery systems and methods, including creating a passageway, such as a fistula, between two vessels or segments of a vessel. A system can include two catheters, each carrying a plurality of magnets along a longitudinal axis of each catheter.