Wearable ECG Telemetry Circuitry for Dual-Device Signal Routing
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Solution Overview
Problem
Current medical devices face challenges in efficiently transmitting and processing cardiac signals, particularly in scenarios where electrode falloff or noise conditions can lead to signal degradation, limiting the quality of monitoring and treatment in cardiac arrhythmias.
Innovation Solution
A system that includes ECG signal processing with a primary and secondary conditioning circuitry, telemetry circuitry, and a patient model resistor network to simulate ECG conditions, ensuring high-quality signal transmission and filtering out noise and electrode falloff effects, allowing for continuous monitoring and potential therapeutic interventions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple ECG monitoring systems are used to ensure comprehensive cardiac monitoring, then monitoring coverage and reliability are improved, but device complexity and patient discomfort increase due to requiring more electrodes
Solution Approach 1:
The patent combines multiple ECG monitoring systems into a single integrated wearable medical device. The device includes both a first ECG monitoring system and a second ECG monitoring system within one unit, allowing both systems to share common components such as electrodes, housing, and power supply. This merging approach maintains comprehensive monitoring coverage while reducing the total number of electrodes needed and simplifying the overall system architecture.
Solution Approach 2:
The wearable medical device is designed with multi-functionality, serving as both a first ECG monitoring system and a second ECG monitoring system simultaneously. The device can output signals to multiple external systems (hospital ECG system and external ECG system) while using a single set of electrodes and processing circuitry, thereby achieving universal application across different monitoring contexts without proportionally increasing complexity.
2Measurement precision
If traditional separate ECG monitoring systems are used, then each system can be optimized independently, but the total number of electrodes and patient discomfort increase
Solution Approach 1:
The patent merges multiple ECG monitoring functions into a single wearable device that uses one set of electrodes for both the first and second ECG monitoring systems. This consolidation reduces the number of electrodes required from what would be needed if two separate systems were used, thereby decreasing patient discomfort while maintaining the ability of each monitoring system to process and analyze ECG signals with high precision through shared signal processing circuitry.
3Productivity
If telemetry circuitry is added to transmit ECG signals to external systems, then monitoring coverage and response time are improved, but device complexity and power consumption increase
Solution Approach 1:
The wearable medical device integrates telemetry circuitry that can output ECG signals to multiple external systems simultaneously (hospital ECG system and external ECG system) through a single unified communication interface. This merging of telemetry functions allows efficient signal transmission to multiple destinations without proportionally increasing device complexity, as the same telemetry hardware serves multiple output purposes.
Data Source
AI summary
A physiological signal monitoring system includes a single set of sensing electrodes to provide conditioned physiological signals to a primary monitoring device and a secondary monitoring device. The monitoring system includes pre-processing circuitry configured to receive a raw physiological signal. The pre-processing circuitry is configured to produce a primary physiological signal and a secondary physiological signal. Each of the primary and secondary physiological signals are conditioned. The primary conditioned physiological signal is directed to a primary monitoring device such as a hospital wearable defibrillator device. The secondary conditioned physiological signal is directed to telemetry modeling circuitry where it is further processed to output one or more telemetry signals. The one or more telemetry signals are output to a secondary monitoring device such as a three lead ECG monitoring device. Thus, a single set of sensing electrodes can provide physiological signals to multiple monitoring devices.