Multi-Port ICD Lead Detection and Mode Adaptation

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Solution Overview

Problem

Conventional subcutaneous implantable medical devices (IMDs) are unable to deliver pacing therapies without causing discomfort to the patient and lack the capability to provide a wide range of therapy and sensing options.

Innovation Solution

The development of an implantable cardioverter defibrillator (ICD) system with multiple ports for connecting electrical leads, allowing for configuration based on the number and type of leads connected, enabling various therapy delivery and sensing modes, including single lead and multi-lead operations, and automatic detection and adaptation of lead connections to facilitate pacing and defibrillation therapies.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional subcutaneous IMDs deliver pacing therapies, then therapy delivery capability is improved, but patient discomfort increases

Engineering Contradiction:

Improvetherapy delivery capabilityVSAvoidpatient discomfort

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The ICD system dynamically adapts its operating mode based on the number and type of connected leads. The system can switch between single-lead mode (using subcutaneous electrodes) and multi-lead mode (using venous leads with can electrodes), allowing optimal therapy delivery while minimizing patient discomfort through automatic mode selection

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If conventional subcutaneous IMDs are designed for limited therapy options, then device simplicity is maintained, but therapy and sensing options are restricted

Engineering Contradiction:

Improvetherapy and sensing optionsVSAvoiddevice configuration

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The ICD device incorporates multiple ports (first port for defibrillation lead, second port for pacing lead) that can accommodate different lead types. The system provides universal functionality by supporting both single-lead and multi-lead configurations, enabling various therapy and sensing options without requiring entirely different device designs

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If the ICD system configures for multiple lead connections, then therapy versatility is improved, but device configuration complexity increases

Engineering Contradiction:

Improvelead configuration optionsVSAvoidconfiguration management

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The ICD system automatically detects the number and type of connected leads and self-configures its operating mode accordingly. The device performs automatic lead detection and mode selection, eliminating the need for manual configuration by clinicians and reducing the complexity of device setup while maintaining versatile lead configuration options

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS9220913B2Multi-mode implantable medical device

Publication Date: 2015.12.29 MEDTRONIC INC

AI summary

Techniques and methods for determining the number and type of leads that are connected to an implantable medical device (IMD) system are disclosed. The IMD system is configured having at least two modes of operation, the modes of operation corresponding to the number and type of leads that are coupled to the IMD system. In accordance with aspects of the disclosure, one of the at least two modes may be selected based on the determination of the number and type of leads that are connected to the IMD system.