Smartphone App and Skin Sensor for Cardiac Arrest Resuscitation
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Solution Overview
Problem
Current systems for resuscitation during cardiac arrest are often time-consuming and overwhelming for untrained lay rescuers, leading to delays in initiating effective chest compressions and potential irreversible brain damage due to insufficient training and knowledge.
Innovation Solution
A mobile assistance system comprising a smartphone app and a position sensor attached to the patient's skin, providing guided instructions and real-time feedback on chest compression depth and frequency, automatically initiating emergency calls and determining the patient's location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If complex medical systems with multiple sensors and professional interfaces are used, then measurement precision and reliability improve, but device complexity and ease of operation worsen
Solution Approach 1:
The patent extracts the essential monitoring function from complex medical systems by using a simple mobile phone camera to capture chest compression movements. Instead of multiple sensors, it uses video analysis to determine compression depth and frequency, eliminating the need for complex hardware while maintaining measurement capability
Solution Approach 2:
The patent replaces mechanical sensors and professional medical equipment with an optical system using a mobile phone camera. The camera captures video of the chest compression process, and software algorithms analyze the video to extract compression parameters, substituting mechanical measurement with optical detection and computational analysis
2Reliability
If comprehensive training and professional knowledge are required, then reliability of resuscitation improves, but ease of operation and productivity worsen
Solution Approach 1:
The system provides automated real-time feedback to the rescuer through the mobile phone, automatically analyzing compression quality and providing guidance without requiring the rescuer to have professional knowledge. The system serves itself by using the rescuer's phone and environment to provide monitoring and feedback capabilities
Solution Approach 2:
The patent implements real-time feedback by analyzing video of chest compressions and providing immediate guidance to the rescuer through the mobile phone interface. This feedback loop allows untrained helpers to perform compressions with quality guidance, improving reliability without requiring extensive training
3Measurement precision
If multiple devices and sensors are deployed, then measurement precision improves, but loss of time and device complexity worsen
Solution Approach 1:
The patent makes the mobile phone serve multiple functions: it acts as the camera for video capture, the processor for analyzing compression quality, the feedback interface for guiding the rescuer, and the communication device for connecting to emergency services. This multi-functionality eliminates the need for multiple separate devices and reduces time to initiate resuscitation
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
Enables untrained lay rescuers to perform immediate and effective life-saving measures, improving the quality and timeliness of resuscitation efforts, increasing survival rates without requiring prior knowledge or training.
Implementation Method 1
a position sensor (4) which is connected to a carrier means (5) and is intended to be applied (eg glued on) to the patient's skin (3) above the sternum (2)
Data Source
Figure 1
AI summary
The invention relates to a system for assisting a rescuer in performing chest compressions for the timely resuscitation of a person (1) suffering from cardiac arrest, wherein the rescuer can in particular be an untrained lay rescuer (8). To detect the circulatory status of the person (1) and to provide supportive first aid measures, a position sensor (4) connected to a carrier medium similar to an adhesive bandage (5) is attached to the sternum (2) of the person (1) by adhesive at a corresponding position. The position sensor (4), which is designed as an accelerometer, is also wirelessly or via cable connected to a mobile device (6). This device (6) is designed as a smartphone, the smartphone being equipped with a corresponding application program.The invention has the advantage that, when used on a patient (1) suffering from cardiac arrest, even a lay helper (8) is able to resuscitate the patient (1) in a timely manner in order to avoid serious damage or to preserve his life.