Guide Wire Control Device for Transcatheter Valve Precision
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Solution Overview
Problem
Transcatheter valve replacement procedures face challenges in precise guide wire management due to the complex anatomy of the heart, leading to potential malposition of prosthetic valves and increased surgeon fatigue during procedures.
Innovation Solution
A guide wire control device with a releasable lock mechanism and a rotating actuator that provides precise control over the guide wire's movement, combined with nonlinear shapes at the distal end to facilitate accurate placement of prosthetic valves, reducing surgeon fatigue and improving procedural accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual guide wire manipulation is used during transcatheter valve replacement, then the surgeon can navigate the catheter through the body, but the surgeon experiences increased fatigue and reduced precision in maintaining optimal forces on the guide wire
Solution Approach 1:
A guide wire control device acts as an intermediary between the surgeon and the guide wire. The device includes a control mechanism with a movable component that can apply controlled forces to the guide wire, eliminating the need for the surgeon to manually manipulate the guide wire throughout the procedure. This intermediary device maintains optimal forces on the guide wire while reducing surgeon fatigue and improving deployment precision.
Solution Approach 2:
The patent replaces the manual mechanical manipulation system with a controlled mechanical system. The guide wire control device uses a movable component that can be positioned along the guide wire and a control mechanism to apply precise forces, substituting the surgeon's manual mechanical control with a more precise and less fatiguing mechanical system.
2Productivity
If the prosthetic valve is deployed without precise guide wire control, then the procedure can be completed, but the valve may be malpositioned leading to perivalvular regurgitation or device embolization
Solution Approach 1:
The guide wire control device serves as an intermediary that enables precise control of the guide wire during valve deployment. The control mechanism allows the surgeon to maintain optimal forces on the guide wire, ensuring accurate valve positioning while completing the procedure efficiently.
Solution Approach 2:
The patent allows for dynamic adjustment of forces applied to the guide wire through the control mechanism. By changing the mechanical parameters (forces, positions) during the procedure, the surgeon can optimize guide wire control at different stages of valve deployment, ensuring accurate positioning while maintaining procedural efficiency.
3Measurement precision
If the guide wire is manipulated to achieve precise valve depth positioning, then the valve can be placed within 1-3 mm of the target location, but the surgeon must constantly maintain optimal pressure on the guide wire which is challenging and fatiguing
Solution Approach 1:
The guide wire control device acts as an intermediary that takes over the task of maintaining optimal pressure on the guide wire. The device includes a control mechanism that can continuously maintain the necessary forces on the guide wire to achieve precise valve depth positioning (within 1-3 mm of target) without requiring constant manual adjustment by the surgeon, thereby eliminating surgeon fatigue.
Solution Approach 2:
The control mechanism enables continuous maintenance of optimal forces on the guide wire throughout the procedure. Rather than requiring intermittent manual adjustments, the device provides continuous control, ensuring the guide wire remains at the optimal position for precise valve depth positioning without surgeon fatigue.
4Adaptability or versatility
If the guide wire is used for both navigation and impacting valve location, then the single guide wire provides dual functionality, but maintaining optimal forces on the guide wire becomes more challenging due to the small diameter and low friction coating
Solution Approach 1:
The guide wire control device serves as an intermediary that compensates for the challenges of manipulating small-diameter, low-friction guide wires. The device includes a control mechanism that can apply and maintain optimal forces on the guide wire, making it easier to manage the guide wire's dual functionality for navigation and valve positioning without surgeon fatigue.
Solution Approach 2:
The control mechanism creates a mechanical advantage system that amplifies the surgeon's ability to control the guide wire. By using a movable component and control mechanism, the system effectively 'copies' and enhances the surgeon's control capability, making it easier to maintain optimal forces on the small-diameter guide wire with low friction coating.
Data Source
AI summary
A guide wire control device and methods of use are described herein. A guide wire is retained by a lock mechanism to a translating assembly within a stationary tubular structure. A rotating actuator controls the translation of the translating assembly and resulting guide wire. The guide wire control device provides improved control of guide wires and angles of a deployment capsule during transcatheter surgical procedures.