Catheter Probe with Segmented Poles for His Electrogram Alternans

Solution Overview

Problem

Current technologies lack the capability to monitor dual pathway atrioventricular (AV) node conduction on a beat-by-beat basis, which is crucial for diagnosing and treating conditions like AV nodal reentrant tachycardia, as existing methods rely on indirect indicators like sudden jumps in AV conduction time, not applicable to all patients and requiring comprehensive AV conduction curve analysis.

Innovation Solution

A catheter probe with a specially designed tip, featuring bilaterally symmetrical configurations such as circular, oval, rectangular, or semi-circular shapes with parallel rows of electric receiving poles, allowing precise placement on the His bundle to record His electrogram alternans, enabling direct measurement of dual pathway AV nodal conduction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If conventional His electrogram recording methods are used, then AV conduction time intervals can be measured, but dual pathway AV nodal conduction cannot be monitored on a beat-by-beat basis

Engineering Contradiction:

Improvedual pathway AV nodal conduction monitoring capabilityVSAvoidcatheter structure complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The catheter tip is segmented into multiple electric receiving poles arranged in parallel rows, with each pole capable of independently recording electrical signals. This segmentation enables simultaneous capture of multiple electrogram components (superior and inferior His electrograms) needed for dual pathway conduction monitoring, transforming a single-function recording device into a multi-channel detection system.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The catheter is designed to perform multiple functions: it can record conventional His electrograms for AV conduction time measurement, simultaneously capture superior and inferior His electrograms for dual pathway conduction monitoring, and provide beat-by-beat analysis capability. This multi-functionality eliminates the need for separate specialized catheters for different diagnostic purposes.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Ease of operation

If dedicated means for determining HE alternans are developed, then dual pathway AV conduction can be monitored routinely, but device manufacturing and operational complexity increases

Engineering Contradiction:

Improveroutine clinical monitoring capabilityVSAvoidcatheter design complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The catheter tip is segmented into multiple electric receiving poles arranged in parallel rows, with each pole capable of independently recording electrical signals. This segmentation enables simultaneous capture of multiple electrogram components (superior and inferior His electrograms) needed for dual pathway conduction monitoring, transforming a single-function recording device into a multi-channel detection system.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The electric receiving poles are positioned at specific locations on the catheter tip surface to optimize signal acquisition from different aspects of the His bundle. The bilateral symmetry and parallel row arrangement ensure that poles are strategically placed to capture both superior and inferior His electrograms with equal quality, enabling reliable HE alternans detection without requiring complex signal processing or post-processing adjustments.

Inventive Principle:

Principle #3Local quality

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

Enables routine clinical monitoring of dual pathway AV nodal conduction, facilitating more precise interventions during catheter ablation and AV node modifications, improving diagnostic accuracy and treatment efficacy for conditions like atrioventricular nodal reentrant tachycardia.

Implementation Method 1

A catheter probe with a specially designed tip, featuring bilaterally symmetrical configurations such as circular, oval, rectangular, or semi-circular shapes with parallel rows of electric receiving poles, allowing precise placement on the His bundle to record His electrogram alternans

Methodology Applied

Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentUS11317844B2Catheter for use in recording his electrogram alternans and application to various conditions

Publication Date: 2022.05.03 NEW YORK INSTITUTE OF TECHNOLOGY

AI summary

The invention relates to a catheter useful in recording His electrogram alternans. The catheter includes a catheter probe containing at least one row of receiving poles positioned at an edge of the catheter probe, equidistantly spaced from each other.