Telemetry-Synchronized Implantable Devices for Wireless Therapy
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Solution Overview
Problem
Current medical devices lack an effective method for synchronized data capture and therapy delivery across distant locations within the body, necessitating physical links that are impractical and limiting diagnostic and therapeutic capabilities, especially for infrequent physiological events like seizures and cardiac arrhythmias.
Innovation Solution
A telemetry-synchronized system of autonomous implantable medical devices uses an inter-device link to trigger synchronized actions, allowing for simultaneous data capture or therapy delivery across different body regions without physical connections, utilizing high-power transmitters and receivers for reliable signal propagation through the body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If physical links are used to connect IMDs for communication or therapy delivery, then reliability of connection is improved, but device complexity and surgical difficulty increase due to lead tunneling requirements
Solution Approach 1:
The patent replaces mechanical/physical connections (leads and tunnels) with electromagnetic telemetry communication. IMDs communicate wirelessly through body tissue using radio frequency signals, eliminating the need for physical lead routing between distant implant sites. This substitution resolves the contradiction by maintaining reliable communication without the surgical complexity of lead tunneling.
2Adaptability or versatility
If IMDs are placed at distant locations in the body, then diagnostic and therapeutic coverage is improved, but synchronization capability deteriorates without physical links
Solution Approach 1:
The patent introduces telemetry communication as an intermediary mechanism between IMDs at distant locations. The wireless telemetry system acts as a mediator that transmits synchronization commands and physiological data between implants without requiring direct physical connection. This enables reliable synchronization while maintaining the ability to place IMDs in optimally positioned distant locations for comprehensive body coverage.
3Reliability
If high-power transmitters are used for telemetry communication, then signal propagation reliability is improved, but energy consumption increases
Solution Approach 1:
The patent employs periodic or event-triggered telemetry transmission rather than continuous high-power transmission. The IMDs transmit data and synchronization signals at specific intervals or in response to detected physiological events, reducing average power consumption while maintaining reliable signal propagation when communication is actually needed. This periodic action resolves the energy-reliability contradiction by concentrating power usage into brief, high-reliability transmission bursts.
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 reliable simultaneous recording of ECG and EEG data during infrequent events, improving diagnostic accuracy and reducing the risk of sudden death in epilepsy patients, while allowing for efficient and precise therapy delivery, such as in obstructive sleep apnea treatment, without the need for complex lead tunneling.
Implementation Method 1
utilizing high-power transmitters and receivers for reliable signal propagation through the body
Data Source
AI summary
A physiological monitoring or therapy delivery system includes autonomous, wirelessly linked, implantable devices located at different areas to sense physiologic signals and deliver therapy. At least one of the implantable devices can trigger synchronized action (e.g. data capture or therapy delivery) by other implantable devices via a telemetry link.