Dual Defibrillation Synchronization Using Shock Artifact Timing
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Solution Overview
Problem
Existing methods for administering double sequential defibrillation (DSD) or simultaneous defibrillation are haphazard and poorly timed, leading to improper shock delivery and potential lengthening of cardiac arrest or causing fatal arrhythmias due to reliance on human coordination.
Innovation Solution
A system utilizing sync mode circuitry in defibrillators to synchronize energy deliveries through electromagnetic artifacts generated during an initial defibrillation, allowing for precise timing of subsequent shocks using inductive coupling and modifier devices to ensure coordinated delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If two separate defibrillators are used for DSD, then the therapy can be delivered, but the timing precision is insufficient due to manual coordination
Solution Approach 1:
The patent combines multiple defibrillation functions into a single integrated device that can deliver both first and second defibrillation shocks. The device includes a controller that coordinates the timing of multiple shocks and a sync mode circuitry that detects artifacts from the first shock to trigger the second shock, eliminating the need for separate defibrillators while maintaining precise timing control.
Solution Approach 2:
The patent introduces sync mode circuitry as an intermediary mechanism that detects the artifact generated by the first defibrillation shock and uses it to trigger the second shock. This intermediary system ensures precise timing between shocks without requiring manual coordination, resolving the timing precision issue while keeping the system integrated.
2Measurement precision
If manual timing is used for shock delivery, then the system is simple to operate, but the timing accuracy is insufficient for effective treatment
Solution Approach 1:
The device performs self-synchronization by automatically detecting the artifact from the first defibrillation shock and using it to trigger the second shock. The controller autonomously manages the timing sequence without requiring manual intervention, achieving high timing accuracy while maintaining ease of operation through automated protocols.
Solution Approach 2:
The sync mode circuitry provides feedback by detecting the artifact generated during the first shock delivery and using this information to trigger the second shock at the precise moment needed. This feedback mechanism ensures accurate timing while the system remains easy to operate through automated shock sequencing.
3Reliability
If shocks are delivered with improper timing, then the treatment may be ineffective, but coordinating multiple defibrillators manually is complex
Solution Approach 1:
The device is pre-configured with a controller programmed to deliver the second defibrillation shock at a specific time after detecting the first shock artifact. This preliminary programming ensures reliable and effective therapy delivery without requiring complex real-time coordination between multiple devices.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures controlled, adjustable, and repeatable delivery of defibrillation therapies, improving the effectiveness of DSD and simultaneous defibrillation by reducing human error and ensuring timely shock administration.
Implementation Method 1
using intertwined wires or a modifier for inductive coupling
Data Source
AI summary
A defibrillation system for the administration of a dual sequential defibrillation and/or simultaneous defibrillation therapy. A first defibrillation device is inductively coupled to a second defibrillation device. An energy delivery of the first defibrillation device generating, or causing to be generated, an artifact that is received by the second defibrillation device. The artifact causing a sync mode, or sync mode circuitry, of the second defibrillation device to administer a second energy delivery. The second energy delivery can be delayed relative to the energy delivery by the first defibrillation device.