Multi-Electrode Antenna for Medical Device Communication
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Solution Overview
Problem
Existing medical devices face challenges in maintaining effective communication due to varying signal strengths and orientations of electrodes, which can lead to inefficient data transfer and therapy delivery in cardiac treatment systems.
Innovation Solution
The use of medical devices with multiple electrodes allows for the selection and testing of optimal communication vectors based on signal strength and orientation, enabling improved communication between implanted and external devices through techniques like RF communication or conducted signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single electrode pair is used for communication, then the device structure is simple, but the signal strength varies with orientation changes
Solution Approach 1:
The antenna is divided into multiple electrode pairs instead of using a single electrode pair. Each electrode pair can be independently activated to establish communication vectors. This segmentation allows the system to select optimal electrode pairs based on orientation and signal strength requirements, resolving the contradiction between structural simplicity and communication reliability.
Solution Approach 2:
The system dynamically selects and switches between different electrode pairs based on real-time communication needs, orientation changes, and signal quality. This dynamic adaptation allows the antenna to maintain reliable communication despite orientation variations, while keeping the physical structure relatively simple.
2Reliability
If multiple electrode pairs are used to maintain signal strength, then communication reliability improves, but the device complexity increases
Solution Approach 1:
Multiple electrode pairs are integrated into a single antenna structure that serves both communication and potential therapeutic functions. The same electrodes used for establishing communication vectors can also be used for pacing or sensing, reducing overall device complexity while maintaining communication reliability.
Solution Approach 2:
The system changes operational parameters by selectively activating different electrode pairs based on communication requirements. Instead of physically reconfiguring the antenna structure, the system achieves adaptability through parameter changes in electrode selection and activation, maintaining structural simplicity while improving communication reliability.
3Stability of the object's composition
If electrode orientation is fixed, then the device structure is stable, but communication efficiency decreases when patient activity changes orientation
Solution Approach 1:
The system implements dynamic electrode pair selection that adapts to changing orientations caused by patient activity. While the physical electrode positions remain fixed and stable, the system dynamically determines which electrode pairs provide optimal communication vectors based on real-time conditions, maintaining both structural stability and communication efficiency.
Solution Approach 2:
The system uses feedback from signal quality measurements to select appropriate electrode pairs for communication. By continuously monitoring communication effectiveness and adjusting electrode selection accordingly, the system maintains high communication efficiency despite orientation changes, while keeping the electrode structure stable and fixed.
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
This approach enhances signal strength and signal-to-noise ratios, ensuring reliable communication and therapy delivery in cardiac treatment systems, even when devices move or change orientation due to patient activity.
Implementation Method 1
The medical devices may communicate via radiofrequency (RF) communication, inductive coupling, conducted communication, or any other suitable communication technique
Implementation Method 2
The medical devices may communicate via radiofrequency (RF) communication, inductive coupling, conducted communication, or any other suitable communication technique
Data Source
AI summary
At least one of a first medical device and a second medical device may be implanted within a patient while the second medical device may optionally be proximate but external to the patient. At least one of the medical devices has an antenna having at least two electrodes and at least one of the medical devices has an antenna having at least three electrodes. The medical devices can communicate via conducted communication through the patient's tissue between a first pair of electrodes and a second pair of electrodes. At least one of the pairs of electrodes can be selected in accordance with the signal strength of the communication vector between the first and second pairs of electrodes.