Rotatable Guide Wire Connector for Stable Pressure Sensor Contact
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Solution Overview
Problem
Existing guide wire connectors face issues with increased gain for pressure sensors, complex electrical connections, and momentary cuts in electrical connections due to guide wire movement, particularly in curved blood vessel branches.
Innovation Solution
A guide wire connector design with a holding portion, support portion, and guide portion that allows for rotatable connection of the guide wire, featuring elastic deformation and angled terminal portions to stabilize electrical contact, along with a connection tube for conductive wires and electrode pins, ensuring stable electrical connections and ease of assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the guide wire is made rotatable to navigate curved blood vessels, then adaptability is improved, but electrical connection stability deteriorates due to momentary cuts during movement
Solution Approach 1:
The connector is designed with dynamic components including a rotatable guide portion that follows guide wire rotation, elastic holding pieces that maintain contact pressure during movement, and angled terminal portions that accommodate positional variations. These dynamic features allow the connector to adapt to guide wire movement while maintaining stable electrical connections throughout the procedure.
2Measurement precision
If sensor gain is increased to improve measurement accuracy, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The connector design incorporates parameter optimizations including angled terminal portions at specific angles (45-60 degrees) to maximize contact stability, elastic holding pieces with optimized deformation characteristics to maintain consistent contact pressure, and a rotatable guide portion with optimized moment of inertia to follow guide wire rotation smoothly. These parameter optimizations enable high measurement precision through stable connections without requiring complex additional components.
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
The design enhances sensor gain and prevents momentary cuts in electrical connections, facilitating reliable data transmission and improved accuracy in pressure measurements.
Implementation Method 1
The holding portion is slid along the axis line of the insertion hole with respect to the guide portion, whereby the holding piece abuts on the guide surface to be elastically deformed inward in the radial direction
Data Source
AI summary
A connector is provided with a holding component, a support component, a terminal electrically connected to a contact of a guide wire held by the holding component, and a guide component rotatable around an axial line of the guide wire with respect to the support component. The holding component is provided with a body having an insertion hole for the guide wire and a holding piece extending along an axial line of the insertion hole from the body and capable of being elastically deformed inward in a radial direction with respect to the axial line. The guide component has a guide surface guiding the holding piece inward in the radial direction. The holding component is slid along the axis line of the insertion hole with respect to the guide component, whereby the holding piece abuts on the guide surface to be elastically deformed inward in the radial direction.