Electrode Catheter Counterclockwise Clockwise Spline Shape Retention
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Solution Overview
Problem
Existing electrode catheters face challenges in maintaining shape retention when in contact with living tissue, leading to unintended separation of spline portions and reduced contact range, which complicates effective treatment procedures.
Innovation Solution
The electrode catheter design incorporates a mesh-shaped electrode assembly with counterclockwise and clockwise spline portions that are contactable and radially offset, forming a continuous conductive path, allowing for improved shape retention and expanded contact with living tissue by resisting external forces and maintaining a continuous conduction range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the electrode assembly is brought into contact with living tissue, then the spline portions flexibly deform to adapt to tissue surface, but the amount of deformation excessively increases causing unintended partial separation from the living tissue
Solution Approach 1:
The electrode assembly is divided into multiple spline portions that can independently deform and contact the living tissue. Each spline portion acts as a separate element that can adapt to the tissue surface while maintaining overall structural integrity through the segmented configuration.
Solution Approach 2:
The electrode assembly incorporates both clockwise and counterclockwise spline portions with asymmetric orientations. This asymmetric design allows the splines to interlock and resist excessive deformation in opposite directions, improving shape retention while maintaining flexible adaptation to tissue contours.
2Adaptability or versatility
If the spline portions excessively deform, then they adapt to the living tissue surface, but the contact range of each spline portion with the living tissue is reduced
Solution Approach 1:
By segmenting the electrode assembly into multiple independent spline portions, each spline can deform locally to adapt to tissue surface irregularities without causing excessive deformation of the entire assembly. This segmentation maintains the contact range of individual splines while enabling surface adaptation.
Solution Approach 2:
The clockwise and counterclockwise spline portions work together in combination, where their opposing orientations complement each other to distribute deformation forces. This merging of opposing elements allows better surface adaptation while preserving the contact area of each individual spline portion.
Data Source
AI summary
An electrode catheter includes a catheter shaft and an electrode assembly and a distal-side bundling component disposed at least partially distal to the catheter shaft. The electrode assembly includes a plurality of spline portions each having a proximal end portion bundled by the catheter shaft and a distal end portion bundled by the distal-side bundling component. The plurality of spline portions includes, when viewed from a distal side in an axial direction of the catheter shaft, a counterclockwise spline portion extending counterclockwise from a side of the distal end portion toward a side of the proximal end portion and a clockwise spline portion extending clockwise from the side of the distal end portion side toward the side of the proximal end portion.