Ambulatory Medical Device Location-Based Mode Switching
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Solution Overview
Problem
Current patient monitoring systems for conditions like heart failure and arrhythmias lack efficient mechanisms to adapt their operational modes based on the patient's geographic location, leading to suboptimal power consumption and data transmission strategies.
Innovation Solution
The system employs a mobile monitor to determine the patient's geographic location and transition an ambulatory medical device (AMD) between different monitoring modes, such as pre-hospitalization and in-clinic modes, based on location information, user confirmation, or scheduling, to optimize power usage and data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the AMD operates in a high-power monitoring mode continuously, then the monitoring precision and data transmission frequency are improved, but the battery life is reduced
Solution Approach 1:
The AMD dynamically switches between first and second monitoring modes based on geographic location data. When the patient is detected to be at a medical care facility, the system transitions to the second mode with higher monitoring precision and data transmission frequency. When away from medical facilities, it operates in the lower-power first mode, thereby adapting monitoring intensity to actual medical needs and conserving battery life.
Solution Approach 2:
The system changes operational parameters (monitoring mode, data transmission frequency, power consumption level) based on the patient's geographic location. The AMD adjusts its monitoring precision and communication frequency according to whether the patient is at a medical facility, effectively changing system parameters to match contextual requirements while optimizing energy usage.
2Loss of information
If the AMD transmits data frequently, then the data availability for medical attention is improved, but the power consumption increases
Solution Approach 1:
The data transmission frequency is dynamically adjusted based on the patient's location. When the AMD detects that the patient is at a medical care facility, it increases data transmission frequency to ensure timely data availability for medical attention. When the patient is away from medical facilities, transmission frequency is reduced to minimize power consumption while maintaining essential monitoring.
Solution Approach 2:
The system prepares for increased data transmission in advance by detecting when the patient is approaching or arriving at a medical care facility through geographic location monitoring. This preliminary detection allows the AMD to proactively increase monitoring and data transmission readiness before medical attention is actually needed, ensuring data availability without continuous high-power transmission.
3Use of energy by moving object
If the AMD uses location-based mode switching, then the power efficiency is improved, but the device complexity increases
Solution Approach 1:
The system uses geographic location data as an intermediary to trigger mode switching. Rather than directly monitoring multiple physiological parameters and making complex decisions about when to switch modes, the AMD uses location information as a simple, objective trigger that automatically initiates the transition between monitoring modes, thereby improving power efficiency while adding minimal complexity through the use of an external location data source.
Data Source
AI summary
This document discusses, among other things, patient monitoring systems, apparatus, and methods that change the operation of an ambulatory medical device (AMD) using geographic location information.