Wearable Defibrillator Syncope Detection
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Solution Overview
Problem
Current methods for detecting and managing syncope, a condition that can indicate underlying cardiovascular dysfunction, are inadequate as they often fail to detect the cause of syncope, especially in transient and random events, and do not provide continuous protection for patients post-hospital discharge, leaving them at risk for fatal arrhythmias.
Innovation Solution
A non-invasive wearable defibrillator that monitors and records data associated with cardiovascular instability, detects patterns indicative of syncope, and takes therapeutic actions such as defibrillation shocks or notifications to prevent loss of consciousness and treat cardiac arrhythmias, while also providing continuous monitoring and protection for patients.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional monitoring methods (holter monitor, loop recorder, event recorder) are used to detect syncope, then the device can record heart rhythm during daily activities, but the exact cause of syncope may go undetected because syncope occurs randomly and may not be duplicated in a monitored setting
Solution Approach 1:
The patent implements continuous monitoring of multiple physiological parameters (ECG, blood pressure, temperature, respiration, activity level) rather than intermittent recording. The system continuously analyzes data streams to detect syncope events and their causes, ensuring no random events are missed while providing comprehensive monitoring coverage.
Solution Approach 2:
The wearable device integrates multiple sensing functions (cardiac, hemodynamic, thermal, respiratory, motion) into a single platform. This multi-functional approach enables the device to detect various causes of syncope (cardiac, neurological, metabolic) simultaneously, improving detection accuracy without requiring multiple separate devices.
2Measurement precision
If patients are hospitalized for extended periods to monitor for syncope, then the cause can be detected, but it would be too expensive to keep all patients with possible syncope in the hospital
Solution Approach 1:
The patent replaces the mechanical system of hospital confinement with a wearable electronic monitoring system. Patients can be monitored at home using the portable device, eliminating the need for expensive hospitalization while maintaining continuous detection capability. The device processes and analyzes physiological data locally, substituting institutional resources with personal wearable technology.
Solution Approach 2:
The monitoring system enables patients to self-monitor at home without requiring continuous medical staff supervision. The device autonomously collects, processes, and analyzes physiological data, providing self-service monitoring that reduces medical resource consumption while maintaining high detection accuracy.
3Reliability
If wearable defibrillator is used to provide continuous monitoring and treatment, then patient safety is improved, but the device complexity increases
Solution Approach 1:
The patent combines multiple functions (monitoring, diagnosis, and treatment) into a single integrated wearable device. The defibrillator is merged with physiological sensors and analysis algorithms, creating a unified system that detects syncope events and automatically delivers therapeutic shocks without requiring separate monitoring and treatment devices.
Solution Approach 2:
The wearable defibrillator autonomously monitors physiological parameters, detects arrhythmias, determines the need for intervention, and delivers therapeutic shocks without continuous external supervision. The device self-manages the entire process from detection to treatment, reducing operational complexity while enhancing patient protection capability.
Data Source
AI summary
An external wearable defibrillator for monitoring a patient for cardiac-related events is provided. The defibrillator includes ECG sensors configured to be disposed about a torso of the patient, therapy electrodes, and at least one motion sensor. The ECG sensors, therapy electrodes, and at least one motion sensor are configured to be worn continuously for an extended period of time. The defibrillator includes a wearable medical device controller including at least one processor configured to receive ECG data, receive motion data, identify at least one of ventricular tachycardia or ventricular fibrillation, initiate a treatment protocol including a defibrillation shock, and, using at least one of the ECG data or the motion data, identify a predetermined pattern for syncope. The predetermined pattern includes bradycardia. The at least one processor is further configured to record the predetermined pattern in a memory and perform an intervening action to address the predetermined pattern.