Single Lead Cardiac Device for Electrical Propagation Measurement

Solution Overview

Problem

Current implantable cardiac devices require multiple leads to measure cardiac tissue electrical velocity and direction, which can interfere with venous blood flow and tricuspid valve function, and are not efficient for delivering Cardiac Contractility Modulation stimulation.

Innovation Solution

An implantable cardiac device with a single lead configuration that senses cardiac waves along two different vectors, allowing for the identification of qualifying heart beats for Cardiac Contractility Modulation stimulation without the need for multiple leads.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If multiple leads are used to measure cardiac tissue electrical velocity and direction, then measurement precision is improved, but device complexity and interference with venous blood flow and tricuspid valve function increase

Engineering Contradiction:

Improvecardiac tissue electrical velocity and direction measurementVSAvoidnumber of leads

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent combines the functions of multiple leads into a single lead by integrating multiple sensing capabilities. The single lead includes multiple electrodes (first electrode, second electrode, third electrode) that can measure both the first cardiac signal (between first and second electrodes) and the second cardiac signal (between second and third electrodes), thereby merging the measurement functions that would traditionally require separate leads.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The single lead is designed with multi-functionality to perform multiple measurement tasks. It can simultaneously measure cardiac electrical signals along different vectors (first vector between first and second electrodes, second vector between second and third electrodes) and provide both sensing and stimulation functions, eliminating the need for multiple specialized leads.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Measurement precision

If multiple leads are used to measure cardiac tissue electrical velocity and direction, then measurement precision is improved, but interference with venous blood flow and tricuspid valve function worsens

Engineering Contradiction:

Improvecardiac tissue electrical velocity and direction measurementVSAvoidinterference with venous blood flow and tricuspid valve function

Core Design Contradiction:

Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The patent combines the functions of multiple leads into a single lead by integrating multiple sensing capabilities. The single lead includes multiple electrodes (first electrode, second electrode, third electrode) that can measure both the first cardiac signal (between first and second electrodes) and the second cardiac signal (between second and third electrodes), thereby merging the measurement functions that would traditionally require separate leads.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent converts the potential harm of multiple leads interfering with venous blood flow and valve function into a benefit by demonstrating that a single lead configuration can achieve equivalent or superior measurement precision through clever electrode arrangement and signal processing, thereby eliminating the harmful interference while maintaining measurement accuracy.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

3Adaptability or versatility

If two separate leads are placed in the right ventricle to measure cardiac electrical signals, then Cardiac Contractility Modulation therapy can be delivered, but device complexity and surgical implantation difficulty increase

Engineering Contradiction:

ImproveCardiac Contractility Modulation therapy deliveryVSAvoidsurgical implantation simplicity

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent combines the functions of multiple leads into a single lead by integrating multiple sensing capabilities. The single lead includes multiple electrodes (first electrode, second electrode, third electrode) that can measure both the first cardiac signal (between first and second electrodes) and the second cardiac signal (between second and third electrodes), thereby merging the measurement functions that would traditionally require separate leads.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The single lead is designed with multi-functionality to perform multiple measurement tasks. It can simultaneously measure cardiac electrical signals along different vectors (first vector between first and second electrodes, second vector between second and third electrodes) and provide both sensing and stimulation functions, eliminating the need for multiple specialized leads.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20250082941A1Measuring cardiac electrical propagation using single lead configuration

Publication Date: 2025.03.13 IMPULSE DYNAMICS NV

AI summary

An implantable cardiac device comprises a device can and a single lead extending from the device can for cardiac emplacement. The lead senses a first cardiac wave propagating along a first vector and the same cardiac wave propagating along a second vector. The first vector may be between first and second locations on the lead, and the second vector between the lead and the device can or involving other locations on the lead so that a second lead is not needed and it is possible to make a single lead device.