Autonomous Medical Device Failure Detection System
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Solution Overview
Problem
Current medical devices lack the capability to automatically and immediately detect and communicate device failures or improper functioning, particularly in implanted devices susceptible to accidental shut-off due to electromagnetic interference or other external disturbances, which can lead to fatal consequences.
Innovation Solution
A failure detection and warning system (FDWS) that operates autonomously from the medical device, providing warnings and logging unprogrammed or accidental shut-offs, and monitoring for electromagnetic interference, with features like independent power, resistance to environmental interference, and specific disablement sequences, enabling continuous monitoring and corrective actions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If medical devices are made highly sophisticated with advanced features, then device functionality and treatment capability are improved, but vulnerability to electromagnetic interference and accidental shut-off increases
Solution Approach 1:
The system divides monitoring functions into separate modular components including electromagnetic interference detectors, device status monitors, and independent warning generators. This segmentation allows each component to be optimized for its specific function while reducing mutual interference and improving overall reliability.
Solution Approach 2:
An independent monitoring system acts as an intermediary between the medical device and the user/clinician. This intermediary continuously checks device status and electromagnetic environment, providing a safety layer that detects failures without requiring the primary medical device to have built-in protection against all interference types.
2Reliability
If automatic failure detection systems are added to medical devices, then patient safety is improved, but device complexity and cost increase
Solution Approach 1:
The monitoring system performs self-diagnosis and self-warning functions. It automatically detects electromagnetic interference, monitors device operational status, and generates warnings without requiring external intervention or complex centralized control systems.
Solution Approach 2:
The monitoring system is designed to detect multiple types of failures and electromagnetic interferences using a single integrated platform. It can monitor various device parameters and provide unified warning outputs, reducing the need for multiple specialized detection circuits.
3Reliability
If continuous monitoring is implemented to detect intermittent failures, then detection reliability is improved, but energy consumption increases
Solution Approach 1:
The monitoring system employs periodic sampling of device status and electromagnetic environment rather than truly continuous monitoring. It checks critical parameters at intervals sufficient to detect intermittent failures while allowing the system to enter low-power states between measurements.
Solution Approach 2:
The system maintains continuous protection capability through periodic checks that are strategically timed and triggered by events. Critical monitoring functions remain active while non-critical functions are suspended during low-risk periods, ensuring continuous safety coverage with reduced average power consumption.
Data Source
AI summary
A failure detection and warning system for monitoring a medical device wherein the system structured to passively or actively detect faults occurring in the medical device being monitored, and wherein the fault includes an unprogrammed and/or undesired shut off of the medical device being monitored or an unprogrammed and/or undesired shut-off of the output of the medical device being monitored by the system.