Rotatable Valve Retainer for Prosthetic Heart Valve Orientation
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Solution Overview
Problem
Current heart valve delivery systems lack the ability to customize the attachment location and orientation of prosthetic valves based on the anatomical features of the patient's heart, particularly for valves with asymmetrical cross-sections, making it difficult to properly position and load them onto a delivery system.
Innovation Solution
A rotatable valve retainer system with a first and second portion, where the second portion can rotate about a central axis relative to the first portion, featuring orientation markings and attachment locations, allowing for customizable alignment and attachment of prosthetic valves using medical imaging to ensure proper orientation and fit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed configuration attachment device is used, then the device structure is simple, but the ability to customize attachment location and orientation is limited
Solution Approach 1:
The valve retainer is divided into a first portion and a second portion that can rotate relative to each other. The first portion includes attachment locations while the second portion includes orientation markings, allowing independent positioning and customization without requiring complete structural redesign
Solution Approach 2:
The second portion of the valve retainer is designed to rotate about a central axis relative to the first portion, transforming a static fixed-configuration device into a dynamic adjustable system that can accommodate different attachment locations and orientations based on patient anatomy
2Measurement precision
If a rotatable valve retainer system is implemented, then positioning precision is improved, but the device complexity increases
Solution Approach 1:
Orientation markings are provided on the second portion of the valve retainer to indicate rotational position and alignment. These visual markers enable precise positioning by allowing operators to visually confirm the correct orientation before final attachment, improving measurement precision without complex mechanical indicators
3Adaptability or versatility
If multiple attachment locations are provided, then adaptability to different anatomical features is improved, but the device complexity increases
Solution Approach 1:
The valve retainer is designed with multiple attachment locations on the first portion and rotational capability on the second portion, creating a universal interface that can accommodate different prosthetic valve types, sizes, and orientations. This multi-functional design allows a single device to serve multiple anatomical configurations without requiring separate specialized devices for each scenario
Data Source
AI summary
Valve retainers and delivery systems with valve retainers are disclosed. In certain embodiments, a portion of the valve retainer can rotate about a central axis of the delivery system relative to a different portion of the valve retainer. In certain embodiments, a first portion of the valve retainer can include a plurality of first orientation markings. In certain embodiments, a second portion of the valve retainer can include a second orientation marking, which can be aligned with a first orientation marking on the first portion of the valve retainer.