Intravascular Imaging Device Conductive Support Member
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Solution Overview
Problem
Intravascular ultrasound imaging devices face challenges in navigating through smaller diameter vessels due to the large outer diameter of their imaging assembly, which complicates efficient assembly and operation.
Innovation Solution
The use of a distal support member with conductive portions that facilitate electrical signal communication between conductors and a flex circuit, allowing for a more compact assembly and reduced outer diameter of the imaging device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the imaging assembly includes traditional electrical connection components, then reliable electrical communication is achieved, but the outer diameter of the device increases making navigation through smaller vessels difficult
Solution Approach 1:
The patent combines the electrical connection function with the support member structure by integrating conductive portions directly into the support member. This merging eliminates the need for separate electrical connection components, thereby maintaining reliable electrical communication while reducing the overall outer diameter of the imaging assembly.
Solution Approach 2:
The support member is designed to serve multiple functions: it provides structural support for the imaging assembly and simultaneously acts as an electrical conductor through its conductive portions. This multi-functionality reduces the need for additional dedicated electrical connection components, thus reducing the outer diameter while maintaining electrical communication reliability.
2Ease of operation
If the outer diameter is reduced for better vessel navigation, then ease of operation improves, but assembly complexity increases due to the need for integrated conductive structures
Solution Approach 1:
The support member is divided into distinct segments: non-conductive portions that provide structural support and conductive portions that enable electrical communication. This segmentation allows each portion to be optimized for its specific function while simplifying the overall assembly process, as the conductive and non-conductive sections can be manufactured separately and then integrated.
Solution Approach 2:
The support member features localized conductive portions at specific locations where electrical connection is needed, rather than making the entire support member conductive. This local quality approach reduces material costs and simplifies assembly, as only specific regions require conductive material integration, while other regions maintain simple structural support functions.
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 solution enables the intravascular imaging device to be assembled with a smaller outer diameter, improving navigation through smaller vessels while maintaining effective electrical communication and imaging capabilities.
Implementation Method 1
The conductive portions of the support member can be electrically connected to a conductive portion of the flex circuit so that the conductors can communicate electrical signals to the flex circuit via the support member
Data Source
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AI summary
An intravascular imaging device is provided. In one embodiment, the intravascular imaging device includes a flexible elongate member sized and shaped for insertion into a vessel of a patient, the flexible elongate member having a proximal portion and a distal portion; an imaging assembly disposed at the distal portion of the flexible elongate member, the imaging assembly including: a flex circuit; a conductor extending along the flexible elongate member and in electrical communication with the flex circuit; and a support member around which the flex circuit is positioned, the support member including a conductive portion electrically coupled to the support member.