Intravascular Delivery Catheter with Centralized Steering
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Solution Overview
Problem
Current intravascular delivery systems for treating heart valve regurgitation face challenges in accessing and orienting interventional devices accurately due to complexity and potential for operator error, requiring multiple radially nested catheters and pre-assembly, which increases mechanical failure and human error risks.
Innovation Solution
A delivery system with a handle and a delivery catheter featuring a distal section that forms a compound curve with pre-formed curves in different planes, allowing centralized steering and minimization of system parts, reducing the need for pre-assembly and complexity, with control lines that adjust the curve to precisely position the device at the treatment site.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple radially nested catheters are used for intravascular delivery, then the ability to access and orient interventional devices is improved, but the device complexity and potential for operator error increase
Solution Approach 1:
The patent combines multiple catheter functions into a single delivery catheter with an integrated elongated member that provides centralized steering. This eliminates the need for multiple radially nested catheters and pre-assembly steps, reducing mechanical complexity while maintaining the ability to access and orient interventional devices at target sites
2Manufacturing precision
If pre-assembly of multiple catheters is required, then proper orientation at target site is improved, but the time required for procedure and potential for human error increase
Solution Approach 1:
The delivery catheter is pre-configured with an integrated elongated member that has predetermined steering capabilities built into its structure. This preliminary configuration eliminates the need for time-consuming pre-assembly of multiple catheters while ensuring proper orientation at the target site is achieved through the pre-designed geometric constraints and steering mechanism
3Ease of operation
If multiple catheters are nested radially, then access to treatment site is improved, but mechanical failure risk increases
Solution Approach 1:
The patent merges multiple catheter functions into a single delivery catheter with an integrated elongated member, eliminating the multiple connection interfaces and nesting relationships that create mechanical failure points. The centralized steering mechanism provides reliable access to treatment sites without the mechanical complexity of multiple nested catheters
Data Source
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AI summary
The present disclosure describes delivery systems (200) for intravascularly delivering one or more interventional devices to a targeted treatment site within a patient's body. A proximal end (208) of a delivery catheter (204) is coupled to a handle (202). One or more control lines (226, 228, 230, 232) extend from the handle through the delivery catheter to a coupler (210) disposed at or near the distal end (215) of the delivery catheter. Tensioning of the one or more control lines manipulates the coupler to form or adjust a compound curve in the delivery catheter.