Orientation-Dependent Coupling for Implantable Defibrillator Battery Protection
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Solution Overview
Problem
Current implantable defibrillators do not optimize battery lifetime due to neglecting the orientation and motional state of the energy source, leading to potential leakage and degradation during coupling with electrical components.
Innovation Solution
An implantable defibrillator system that activates coupling between the energy source and electrical components based on the orientation and motional state, using sensors to determine and verify a beneficial state before allowing electrical coupling, thereby minimizing adverse effects on battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If coupling between energy source and electrical component is activated continuously, then electrical functionality is maintained, but battery lifetime is reduced due to leakage and degradation
Solution Approach 1:
The patent applies dynamics by making the coupling state variable rather than fixed. The coupling between energy source and electrical component is dynamically activated or deactivated based on detected orientation and motional state conditions. This allows the system to adapt its electrical connectivity according to environmental factors, reducing battery stress during unfavorable conditions while maintaining functionality when appropriate.
Solution Approach 2:
The patent changes the operational parameters of the coupling based on orientation and motional state parameters. By detecting physical parameters (orientation angles, motion intensity) and using them to control coupling activation, the system adjusts its electrical operational state to optimize battery lifetime while maintaining necessary electrical functionality when conditions are favorable.
2Ease of operation
If coupling is activated without orientation consideration, then operational simplicity is maintained, but battery degradation increases due to leakage in unfavorable orientations
Solution Approach 1:
The system performs self-service by automatically detecting its own orientation and motional state and making autonomous decisions about coupling activation. The defibrillator monitors its physical state through sensors and independently determines when coupling should be activated or deactivated, eliminating the need for manual intervention while protecting against degradation.
Solution Approach 2:
The patent implements feedback by using sensors to continuously monitor orientation and motional state, then using this information to control coupling activation. The system receives feedback about its physical state and adjusts its operational state accordingly, creating a closed-loop control system that prevents degradation without complicating operation for the user.
3Reliability
If sensors are added to detect orientation and motional state, then battery protection is improved, but device complexity increases
Solution Approach 1:
The patent applies universality by making the sensor system serve multiple functions. The same sensors that detect orientation and motional state for battery protection can also provide information for other device functions such as activity monitoring, positioning, or therapeutic decision-making. This multi-functionality justifies the added complexity by providing multiple benefits from a single sensor subsystem.
Data Source
AI summary
The present disclosure relates to an implantable defibrillator which comprises at least one energy source and at least one electrical component. The implantable defibrillator further comprises means for activating a coupling between the energy source and the electrical component, based at least in part on an orientation and/or a motional state of the energy source, wherein the electrical component is a capacitor.