Implant Inductive Power Control With Dual-Parameter Feedback
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Solution Overview
Problem
Existing inductive energy supply systems for implanted medical devices struggle to rapidly adjust the amount of energy transferred to meet the device's needs.
Innovation Solution
A medical system with internal and external parts that includes a primary coil for energy transmission, a control unit for energy control, and an energy receiver with a secondary coil, which determines energy balance and coupling factor to rapidly adjust energy transfer based on multiple feedback parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If inductive energy supply is used for implanted medical devices, then energy can be transmitted wirelessly to the implantable parts, but the amount of energy supplied cannot be adjusted rapidly enough to meet the device's needs
Solution Approach 1:
The patent implements a feedback mechanism where the implanted medical device monitors its energy consumption and wirelessly transmits this information back to the external power source. The external control unit receives this feedback and automatically adjusts the energy transmission parameters (frequency, power level) to match the device's actual needs, enabling rapid energy adjustment while maintaining wireless operation
Solution Approach 2:
The system dynamically adapts energy transmission parameters based on real-time conditions. The external power source modifies transmission frequency and power levels in response to feedback from the implanted device, allowing the energy supply to be flexible and responsive rather than static, thus achieving rapid adjustment capability
2Power
If higher energy is transmitted to meet peak demands, then the medical device can operate at full capacity, but excess energy causes heat production and energy waste
Solution Approach 1:
The implanted device continuously monitors its actual energy consumption and provides feedback to the external power source. This feedback loop enables the system to transmit only the amount of energy that is actually needed, preventing both energy waste and excessive heat generation while ensuring sufficient power is available during peak demand periods
Solution Approach 2:
The system changes transmission parameters (power level, frequency) dynamically based on the device's operational state. By adjusting these parameters in response to feedback, the system optimizes energy transmission to match actual consumption patterns, avoiding both under-powering and over-powering scenarios that lead to energy waste and heat production
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables rapid and efficient energy adjustment to match the medical device's requirements, optimizing energy use and reducing heat production.
Implementation Method 1
The external parts comprise an energy source which is equipped with a primary coil for inductively transmitting energy to the implantable parts
Implementation Method 2
an energy receiver equipped with a secondary coil for inductively receiving energy for the medical device from the external energy source
Data Source
AI summary
A medical system (100, 300) comprises internal parts (30, 32) for implantation in a patient and external parts (10, 12, 20). The external parts comprise an energy source (10) with a primary coil (12) and the internal parts comprise an electrically powered medical device (40, 41) and an energy receiver (30) with a secondary coil (32) for inductively receiving energy from the external energy source (10). The system (100, 300) is arranged to determine a balance between the energy received in the energy receiver (30) and the amount of energy used by the medical device (40, 41). The internal control unit (50) transmits feedback information to the external control unit (20), and the system (100, 300) is arranged to determine the feedback information based on a first (P1) and a second (P2) parameter.