Meshing Catheter Support Strips to Prevent Bending in Small Vessels

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Solution Overview

Problem

Catheters bend and deform during interventional treatments, affecting the smooth process due to their flexibility, especially in small blood vessels.

Innovation Solution

A catheter support apparatus with flexible supporting strips featuring meshing units that form a catheter placing cavity, providing anti-bending torque and support through meshing and wrapping, facilitated by a catheter zipper-chain guiderail and braking assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a catheter is made flexible to navigate blood vessels, then it can move through curved vascular paths, but it bends and deforms during intervention affecting treatment smoothness

Engineering Contradiction:
Improvecatheter flexibility for navigating blood vesselsVSAvoidcatheter stability during intervention
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The support apparatus is divided into multiple flexible supporting strips with meshing units, creating a segmented structure that can adapt to curved vascular paths while maintaining overall stability through the coordinated meshing of individual segments

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The catheter placing cavity is designed with a curved configuration matching the natural curvature of blood vessels, allowing the flexible catheter to navigate curved vascular paths without bending deformation through proper geometric alignment

Inventive Principle:
Principle #14Spheroidality (Curvature)

2Reliability

If multiple flexible supporting strips are used to support the catheter, then catheter stability is improved, but the device structure becomes more complex

Engineering Contradiction:
Improvecatheter support stabilityVSAvoidnumber of flexible supporting strips and meshing units
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

Multiple flexible supporting strips with meshing units are combined to form an integrated catheter placing cavity that collectively supports the catheter, achieving enhanced stability through the unified action of multiple components working together

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The flexible supporting strips are designed as thin, flexible elements that can bend and adapt to vascular curvature while maintaining their supportive function, reducing the bulk and complexity of the overall device structure

Inventive Principle:
Principle #30Flexible shells and thin films

Data Source

PatentUS12569647B2Catheter support apparatus and transluminal intervention system
Publication Date: 2026.03.10 SHENGYI TECH (BEIJING) CO LTD
  • US12569647B2 patent drawing
  • US12569647B2 patent drawing
  • US12569647B2 patent drawing

AI summary

Disclosed are a catheter support apparatus and a transluminal intervention system. The catheter support apparatus comprises a plurality of flexible supporting strips. A plurality of meshing units arranged at intervals in a strip length direction are formed on the flexible supporting strips. The meshing units of the plurality of flexible supporting strips are at least partially meshed to jointly surround, define, and form a catheter placing cavity for accommodating a catheter. The flexible supporting strips are adopted such that, by means of the meshing units on the flexible supporting strips, the plurality of flexible supporting strips can be meshed and formed into the catheter placing cavity. By means of the catheter placing cavity, the catheter can be accommodated to enable wrapping of the catheter, thereby ensuring the support for the catheter. The catheter support apparatus has an effect of a certain anti-bending torque, and it has a simple structure and is easy to operate, thereby ensuring the smooth completion of an interventional surgery.