Robotic Guide Catheter Positioning Stability

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Solution Overview

Problem

Guide catheters tend to move out of position during catheter procedures, particularly when guide wires or working catheters are inserted, which can compromise the accuracy and effectiveness of interventions like coronary artery access.

Innovation Solution

A system and method that monitors parameters such as blood pressure, electrocardiogram waveforms, and fluoroscopic images to detect if a guide catheter is out of position, displaying an alert and automatically adjusting its position using a robotic catheter system to maintain proper seating.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual manipulation is used to place the guide catheter, then the operator can control positioning, but the guide catheter tends to move out of position during the procedure

Engineering Contradiction:

Improveguide catheter positioning stabilityVSAvoidmanual control requirement

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The system continuously monitors parameters (blood pressure, ECG waveforms, fluoroscopic images) to detect guide catheter position changes and provides real-time feedback to the robotic control system, which automatically adjusts the catheter position to maintain proper seating

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The patent replaces manual mechanical manipulation with an automated robotic system that uses motorized actuators to position and maintain the guide catheter, eliminating the instability caused by manual handling while performing interventions

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If automated robotic system is used to maintain guide catheter position, then positioning stability is improved, but system complexity increases

Engineering Contradiction:

Improveguide catheter positioning stabilityVSAvoidrobotic catheter system complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The robotic catheter system integrates multiple functions including automated guide catheter positioning, guide wire feeding, contrast injection, and real-time parameter monitoring into a single unified platform, reducing overall system complexity despite the advanced capabilities

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system uses an intelligent control algorithm as an intermediary between the monitoring sensors and the robotic actuators, processing multiple input parameters and translating them into coordinated motor commands, which simplifies the control architecture while maintaining positioning stability

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS11229490B2System and method for monitoring of guide catheter seating

Publication Date: 2022.01.25 SIEMENS HEALTHINEERS ENDOVASCULAR ROBOTICS INC

AI summary

A method for monitoring the seating of a guide catheter during a catheter procedure includes monitoring at least one parameter of the catheter procedure and determining if the at least one parameter indicates that a guide catheter is out of position. If the at least one parameter indicates the guide catheter is out of position, an alert is displayed and the position of the guide catheter is adjusted. The parameter may be, for example, blood pressure, an ST wave of an electrocardiogram, contrast agent, fluoroscopic images of a region including the distal end of the guide catheter and ultrasound signals.