External Controller for Implantable Device Charging and Telemetry
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Solution Overview
Problem
Current implantable medical device systems require manual intervention to switch between data telemetry and charging functions, which is inconvenient for patients and can disrupt the charging process.
Innovation Solution
An integrated external controller/charger system that automatically switches between data telemetry and charging using a detachable external charging coil, allowing seamless communication through either the data telemetry coil or the charging coil without manual alignment or intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual switching between data telemetry and charging functions is implemented, then device functionality is achieved, but patient convenience deteriorates and operational complexity increases
Solution Approach 1:
The external controller automatically detects whether the implantable device is in charging mode or data telemetry mode and switches functions without requiring patient intervention. The system self-manages the mode transitions based on detected conditions, eliminating the need for manual switching by the patient.
Solution Approach 2:
The system dynamically adapts its operation mode based on real-time conditions. The external controller continuously monitors the state of the implantable device and automatically transitions between charging and data telemetry functions, making the system flexible and responsive to changing conditions without fixed manual control.
2Adaptability or versatility
If separate data telemetry coil and charging coil are used, then functional specialization is achieved, but device complexity and alignment difficulty increase
Solution Approach 1:
The external controller is designed to perform multiple functions through a single integrated interface. It can automatically switch between charging operations and data telemetry operations using the same physical connection, making the external controller a universal device that handles both functions without requiring separate specialized equipment.
Solution Approach 2:
The patent combines the charging function and data telemetry function into a single integrated external controller system. Instead of requiring separate external chargers and external controllers, the system merges these functions into one device that can automatically perform both operations through the same coil interface.
3Manufacturing precision
If manual alignment of coils is required, then connection precision can be achieved, but ease of operation deteriorates and time consumption increases
Solution Approach 1:
The external controller automatically detects and establishes proper connection with the implantable device without requiring patient alignment actions. The system self-adjusts to achieve optimal coupling between the external controller coil and the implantable device coil, eliminating the need for manual alignment by the patient.
Solution Approach 2:
The system performs preliminary detection and positioning actions automatically before initiating charging or data telemetry operations. The external controller preemptively establishes the correct connection state and coil alignment, so that when the patient applies the device, proper alignment is already achieved without requiring manual adjustment during use.
4Loss of information
If charging session is interrupted for data telemetry, then data communication is achieved, but charging efficiency deteriorates and time consumption increases
Solution Approach 1:
The system maintains continuous operation by automatically managing the alternation between charging and data telemetry functions. The external controller continuously monitors and switches between modes without requiring patient intervention to interrupt or resume operations, ensuring that both charging and data communication proceed efficiently without unnecessary interruptions.
Solution Approach 2:
The system dynamically transitions between charging mode and data telemetry mode based on detected conditions. The external controller automatically adjusts its operation in real-time, switching functions as needed without fixed interruptions, thereby maintaining overall system productivity while ensuring both charging and data communication needs are met.
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 continuous operation by automatically switching between data telemetry and charging, ensuring reliable and efficient communication without manual intervention, simplifying patient use and maintaining proper alignment for data transfer during charging sessions.
Implementation Method 1
The transfer of power from the external charger 50 is enabled by a coil 17′, which is discussed further below. When power is to be transmitted from the external charger 50 to the IPG 100, coil 17′ is again energized with an alternating current to produce a non-modulated magnetic charging field.
Implementation Method 2
The communication of data to and from the external controller 12 is enabled by a coil 17, which is discussed further below. When data is to be sent from the external controller 12 to the IPG 100 for example, coil 17 is energized with an alternating current (AC).
Data Source
AI summary
An external controller/charger system for an implantable medical device is disclosed, in which the external controller/charger system provides automatic switching between telemetry and charging without any manual intervention by the patient. The external controller/charger system includes an external controller which houses a telemetry coil and an external charging coil coupled to the external controller. Normally, a charging session is carried out using the external charging coil, and a telemetry session is carried out using the telemetry coil. However, when a patient requests to carry out telemetry during a charging session, the external charging coil is used instead of the internal telemetry coil.