Catheter Motion Detection for Real-Time Prolapse Prevention

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Solution Overview

Problem

Neurovascular procedures face challenges such as limited availability of trained interventionalists, complex setup requirements, and difficulties in achieving supra-aortic access due to long, tortuous anatomy, leading to inadvertent catheter motion and prolonged procedure times.

Innovation Solution

A system for detecting catheter or guidewire prolapse using image processing and drive system sensor data to determine positional changes, comparing expected motion with actual motion, and alerting users if a prolapse threshold is exceeded, thereby preventing catheter or guidewire prolapse.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If real-time detection system is implemented, then catheter safety is improved, but device complexity increases

Engineering Contradiction:

Improvecatheter safetyVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system continuously monitors catheter position using imaging systems and compares actual position with expected position based on drive system input, providing real-time feedback to detect prolapse conditions

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The patent introduces an intermediary detection system that acts as a mediator between the drive system and catheter, using imaging and sensor data to indirectly monitor catheter status without directly interfering with the procedure

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If manual catheter control is used, then system simplicity is maintained, but catheter motion control precision deteriorates

Engineering Contradiction:

Improveoperation simplicityVSAvoidcatheter position control precision

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The system provides real-time feedback on catheter position by comparing actual position (from imaging) with expected position (from drive system data), enabling precise detection of unintended motion while maintaining manual control simplicity

Inventive Principle:

Principle #23Feedback

3Adaptability or versatility

If supra-aortic access is attempted through tortuous anatomy, then neurovascular access is achieved, but catheter prolapse risk increases

Engineering Contradiction:

Improvevascular access capabilityVSAvoidcatheter position stability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The system performs preliminary detection of catheter position and compares it with expected position before prolapse occurs, allowing early warning and preventive action during navigation through tortuous vasculature

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

Real-time feedback on position discrepancies allows the operator to adjust catheter manipulation to prevent prolapse during navigation through complex anatomical pathways

Inventive Principle:

Principle #23Feedback

4Adaptability or versatility

If multiple coaxial catheters are used, then neurovascular procedure capability is improved, but frictional interplay causing inadvertent motion increases

Engineering Contradiction:

Improveprocedure capabilityVSAvoidcatheter position stability

Core Design Contradiction:

Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The system monitors position changes of multiple catheters and provides feedback on unexpected motion caused by frictional interplay between coaxial shafts, enabling compensation and stabilization

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS20260000471A1Catheter assembly motion detection including prolapse detection

Publication Date: 2026.01.01 IMPERATIVE CARE INC

AI summary

A system for robotically controlling interventional devices can detect catheter prolapse. The system can estimate a catheter position based at least in part on the imaging of a patient. The system can compare changes in the image-based catheter position to data provided by a catheter drive system. Based on this comparison, the system can determine whether catheter prolapse has occurred or the degree to which catheter prolapse has occurred. Methods of detecting and predicting catheter prolapse are also disclosed.