Implantable Medical Device Multi-Repeater Communication System
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Solution Overview
Problem
Implantable medical devices (IMDs) face challenges in reliable communication and power management, particularly in maintaining battery life while ensuring secure communication and real-time control, especially due to factors like improper programming, sensor malfunctions, and electromagnetic interference.
Innovation Solution
A multi-repeater communications system is designed to optimize signal quality, minimize battery drain, and ensure secure communication by using wearable and implantable repeater units, RFIDs, and cell phones as repeater devices, with features like motion detection and encryption for secure data transmission and verification of proper program installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If remote communication with IMD is implemented to enable real-time control and reprogramming, then the ability to rapidly address malfunctions is improved, but the battery drain of the implantable device increases
Solution Approach 1:
A wireless communication system with repeater units is introduced as an intermediary between the IMD and external devices. The repeater units relay communication signals, allowing the IMD to maintain low power consumption while enabling remote access and real-time control capabilities through distributed communication nodes.
Solution Approach 2:
The communication system operates periodically rather than continuously, with the IMD transmitting data and receiving commands at scheduled intervals. This periodic operation allows the device to enter low-power states between communication events, reducing overall battery drain while maintaining the ability to rapidly address malfunctions when needed.
2Reliability
If multiple repeater units are deployed to optimize signal quality and reduce battery drain, then communication reliability is improved, but the device complexity and cost increase
Solution Approach 1:
The repeater units are designed to perform multiple functions: signal relaying, local data storage, and basic processing. By making each repeater unit multi-functional, the system achieves improved communication reliability through distributed nodes without proportionally increasing overall system complexity, as each component serves several purposes simultaneously.
Solution Approach 2:
The repeater units operate autonomously, making local decisions about signal routing and data transmission without requiring constant control from the central system. This self-service capability reduces the complexity of centralized control mechanisms while maintaining reliable communication across the distributed network.
3Reliability
If encryption and security features are implemented to protect communication, then communication security is improved, but the processing requirements and power consumption increase
Solution Approach 1:
Encryption keys and security protocols are established and configured in advance during device initialization or manufacturing. By performing security setup beforehand, the system avoids the need for complex real-time key generation and negotiation during data transmission, reducing processing requirements and power consumption during operational communication while maintaining strong security protection.
Data Source
AI summary
A system and methods of maintaining communication with a medical device for exchange of information, instructions, and programs, in a highly reliable manner. Apparatus and methods for accomplishing this task include: 1) The inclusion of a locating device in the system, in close proximity to an implanted device, but which does not drain the implanted device battery. The locating device may be implanted or external to the body. 2) The use of motion detection and global positioning system devices to locate elements within a communicating system for the medical device; 3) The assessment of received signal quality by elements of the system; 4) The use of a notification system for a device user who is moving out of range of communications; and 5) Documenting the absolute and functional integrity of instructions received by the medical device.