Implantable Receiver Power Mode Switching for Energy Optimization

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Solution Overview

Problem

Implantable medical devices face reduced operational lifetimes due to the energy required for continuous communication, necessitating a solution to manage power consumption effectively.

Innovation Solution

Implementing an implantable medical device with a receiver that operates in multiple power modes, switching between higher and lower power levels based on physiological parameters sensed by integrated sensors, allowing the device to conserve energy by reducing communication when not necessary.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the receiver operates in higher power mode to maintain continuous communication capability, then communication reliability is improved, but energy consumption increases and operational lifetime decreases

Engineering Contradiction:
Improvecommunication reliabilityVSAvoidoperational lifetime
Core Design Contradiction:
ReliabilityVSDuration of action of moving object

Solution Approach 1:

The receiver dynamically switches between higher and lower power modes based on real-time physiological parameter monitoring. When parameters indicate stable conditions, the receiver operates in lower power mode to conserve energy. When parameters indicate potential communication needs, the receiver transitions to higher power mode, thus adapting power consumption to actual operational requirements rather than maintaining constant high power operation

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the operational parameter (power mode) of the receiver based on physiological parameter thresholds. By monitoring physiological parameters and comparing them against predefined thresholds, the system determines when to switch between power modes, optimizing the balance between communication reliability and energy conservation

Inventive Principle:
Principle #35Parameter changes

2Use of energy by moving object

If the receiver operates in lower power mode to conserve energy, then energy consumption is reduced and operational lifetime is extended, but communication capability is degraded

Engineering Contradiction:
Improveenergy consumptionVSAvoidcommunication capability
Core Design Contradiction:
Use of energy by moving objectVSReliability

Solution Approach 1:

The receiver dynamically adjusts its operational state between lower and higher power modes based on real-time physiological monitoring. This dynamic adaptation allows the system to maintain communication capability when needed while conserving energy during stable periods, rather than operating at constant power level

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system uses physiological parameter feedback to control receiver power mode selection. The physiological sensor continuously monitors patient parameters and provides feedback to the controller, which then determines the appropriate power mode, creating a closed-loop control system that optimizes communication capability versus energy consumption based on actual physiological conditions

Inventive Principle:
Principle #23Feedback

3Use of energy by moving object

If the device continuously monitors physiological parameters and switches power modes, then energy optimization is improved, but device complexity increases

Engineering Contradiction:
Improveenergy optimizationVSAvoiddevice complexity
Core Design Contradiction:
Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The physiological sensor serves multiple functions: it monitors patient physiological parameters for health assessment and simultaneously provides control signals for power mode optimization. This multi-functionality reduces the need for separate monitoring systems while achieving energy optimization through intelligent power management

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS11235163B2Implantable medical device with multiple modes of operation
Publication Date: 2022.02.01 CARDIAC PACEMAKERS INC
  • US11235163B2 patent drawing
  • US11235163B2 patent drawing
  • US11235163B2 patent drawing

AI summary

An implantable medical device (IMD) with a receiver having a higher power mode and a lower power mode. In the higher power mode, the receiver can receive a communication from an external device and pass the received communication to a controller, and in the lower power mode the receiver may not receive the communication from the external device and pass the received communication to the controller. In some cases, the IMD may include a physiological sensor providing an output to the controller, and the controller may control whether the receiver is in the higher power mode or the lower power mode based at least in part on the output of the physiological sensor.