Implantable Medical Device Battery Longevity Management

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Solution Overview

Problem

Implantable medical devices (IMDs) experience varying battery longevity due to clinical use conditions and parameter settings, leading to sub-optimal performance that is often unexpected and undesirable for healthcare professionals.

Innovation Solution

A system and method that calculates total IMD battery longevity, identifies parameters affecting it, and allows adjustments to improve longevity, displayed through a user interface for physicians to navigate and modify settings to optimize battery life.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If IMD parameters are set to provide optimal therapy, then treatment effectiveness is improved, but battery longevity deteriorates

Engineering Contradiction:
Improvetreatment effectivenessVSAvoidbattery longevity
Core Design Contradiction:
ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The system dynamically adjusts IMD parameters based on real-time battery status and usage patterns. The external device communicates with the IMD to modify pacing amplitude, pulse width, and other parameters adaptively, allowing optimal therapy during high battery capacity and parameter adjustment for battery conservation as capacity decreases.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes operational parameters of the IMD to optimize the balance between therapy effectiveness and battery consumption. By modifying parameters such as pacing voltage, pulse duration, and stimulation patterns, the system achieves effective treatment while extending battery life based on actual usage conditions.

Inventive Principle:
Principle #35Parameter changes

2Duration of action of stationary object

If battery longevity is extended through parameter adjustments, then device lifetime is improved, but therapy optimization capability deteriorates

Engineering Contradiction:
Improvebattery longevityVSAvoidtherapy optimization capability
Core Design Contradiction:
Duration of action of stationary objectVSEase of operation

Solution Approach 1:

The system implements feedback loops where the external device continuously monitors IMD performance, battery status, and patient response. Based on this feedback, the system automatically adjusts parameters to maintain effective therapy while extending battery life, removing the need for manual physician intervention for optimal settings.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The IMD and external device work together to automatically optimize therapy parameters without requiring continuous manual intervention. The system self-adjusts based on embedded algorithms that balance therapy effectiveness with battery conservation, enabling the device to serve itself in maintaining optimal performance.

Inventive Principle:
Principle #25Self-service

3Duration of action of stationary object

If physicians manually adjust parameters to extend battery life, then longevity is improved, but time and expertise requirements increase

Engineering Contradiction:
Improvebattery longevityVSAvoidphysician time and expertise
Core Design Contradiction:
Duration of action of stationary objectVSLoss of time

Solution Approach 1:

The system automatically performs parameter optimization and battery management functions that would otherwise require physician intervention. Through embedded algorithms and automated communication between the IMD and external device, the system extends battery life without requiring additional physician time or specialized expertise in parameter tuning.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Automated feedback mechanisms monitor battery status and therapy effectiveness continuously, enabling the system to make real-time parameter adjustments without physician involvement. This eliminates the need for manual parameter optimization while maintaining both effective therapy and extended battery longevity.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS7877145B2Systems and methods for managing the longevity of an implantable medical device battery
Publication Date: 2011.01.25 CARDIAC PACEMAKERS INC
  • US7877145B2 patent drawing
  • US7877145B2 patent drawing
  • US7877145B2 patent drawing

AI summary

A method for managing battery longevity of an implantable medical device (“IMD”) battery includes calculating a total IMD battery longevity value for an IMD and determining whether the total IMD battery longevity is below an optimal battery longevity value. At least one IMD parameter to be modified to improve the total IMD battery longevity value is automatically identified. The at least one automatically identified IMD parameter is adjusted to improve the total IMD battery longevity. Additionally, the improved total IMD battery longevity is displayed.