Defibrillator Overridable CPR-First Protocol
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Solution Overview
Problem
Existing defibrillators with CPR-first protocols often delay shock therapy administration, as users must navigate through CPR prompts even when shock therapy is the appropriate initial treatment, leading to potential adverse outcomes due to time constraints and user capability issues.
Innovation Solution
A defibrillator with an overridable CPR-first protocol that allows users to quickly bypass CPR prompts and initiate shock therapy analysis through queries and responses, either manually or automatically based on physiological data, minimizing delays by providing an option to override the default CPR protocol.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the defibrillator uses a CPR-first protocol as default, then CPR treatment is prioritized for all patients, but shock therapy is delayed when it should be the immediate treatment
Solution Approach 1:
The defibrillator dynamically adjusts the treatment protocol based on real-time physiological data analysis. The system transitions from a static CPR-first approach to a dynamic protocol selection that adapts to the specific patient condition, enabling shock therapy to be prioritized when VF is detected while maintaining CPR-first for appropriate cases
Solution Approach 2:
The system changes the treatment parameter (protocol selection) based on the analyzed physiological state. When voltage levels indicate ventricular fibrillation, the protocol parameter switches from CPR-first to shock-first, optimizing treatment based on the detected electrical parameters of the heart
2Ease of operation
If the defibrillator requires users to navigate through CPR prompts, then the protocol is followed systematically, but the operation time increases and may exceed user capability
Solution Approach 1:
The defibrillator performs automatic physiological data analysis and self-determines the appropriate treatment protocol without requiring extensive user input or decision-making. The system serves itself by autonomously analyzing ECG data and selecting the correct treatment path, reducing the cognitive burden on users while maintaining systematic protocol adherence
3Measurement precision
If the defibrillator automatically analyzes physiological data to determine shock need, then treatment decisions are data-driven, but the analysis time may delay immediate shock delivery
Solution Approach 1:
The system performs a focused, partial analysis of only the critical voltage parameters necessary to detect ventricular fibrillation, rather than a comprehensive analysis of all physiological data. This selective approach provides sufficient accuracy for shock decision-making while minimizing analysis time, enabling rapid treatment when VF is detected
Data Source
AI summary
Methods and apparatus are provided for determining a defibrillation treatment protocol in an external defibrillator whereby a user may override a CPR-first default protocol. The method includes following steps configured in a defibrillator controller of issuing an inquiry; waiting for a response to the inquiry for a set time; ordering a CPR treatment protocol if no response is received within the set time; analyzing a response; ordering a CPR treatment protocol upon receiving a non-affirmative response to the inquiry; and ordering a shock treatment protocol upon receiving an affirmative response to the inquiry. Upon selecting a shock treatment protocol, the defibrillator performs a shock analysis under the shock treatment protocol, and either orders a CPR treatment protocol if shock treatment is not indicated by the shock analysis or provides a defibrillation shock if shock treatment is indicated by the shock analysis. Queries may be presented to a user in visual, audible, or both visual and audible format.