AED Electrode Pads With Visual CPR Feedback in Noisy Emergencies
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing CPR devices provide inadequate feedback, particularly in noisy and stressful emergency situations, and supplemental chest-mounted devices complicate CPR administration.
Innovation Solution
An automated external defibrillator (AED) system with electrode pads that provide visual feedback on chest compression depth and rate, using electrocardiogram signals and accelerometers to adjust displays accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If audible instructions or feedback are used to provide CPR quality feedback, then the device can provide real-time feedback to the user, but the feedback can be difficult or impossible to hear and/or comprehend during noisy and stressful emergency situations
Solution Approach 1:
The patent replaces the acoustic feedback system with a visual feedback system using LED indicators on the electrode pads. The visual indicators provide real-time feedback on compression depth and rate through light signals that are not affected by environmental noise, thereby resolving the contradiction between reliable feedback delivery and noise interference.
Solution Approach 2:
The patent introduces visual LED indicators as an intermediary medium to transmit feedback information from the sensor system to the user. These visual indicators serve as a mediator that conveys compression quality information without being affected by acoustic environmental factors, enabling reliable feedback in noisy conditions.
2Measurement precision
If supplemental devices are placed on the patient's chest under the rescuer's hands to provide CPR feedback, then the device can directly monitor compression quality, but these are extra accessories that need to be available, cleaned, and maintained, and can waste valuable recovery time during application
Solution Approach 1:
The patent merges the CPR feedback monitoring function with the existing electrode pads used for defibrillation. By integrating sensors, LED indicators, and processing electronics into the electrode pads themselves, the system eliminates the need for separate supplemental devices, thereby reducing application time and simplifying the overall system while maintaining precise compression monitoring capabilities.
Solution Approach 2:
The patent makes the electrode pads multi-functional by incorporating both defibrillation capability and CPR feedback monitoring into a single device. The electrode pads serve dual purposes: delivering electrical shocks when needed and providing real-time visual feedback on compression quality, thereby eliminating the need for separate monitoring devices and reducing application time.
3Ease of operation
If visual feedback is provided through electrode pad displays, then clear visual cues are provided to rescuers enhancing compression quality, but the device complexity increases with integrated displays and sensors
Solution Approach 1:
The patent implements visual feedback locally at the point of use by placing LED indicators directly on the electrode pads that are in contact with the patient's chest. This local visualization provides immediate feedback to the rescuer about compression depth and rate without requiring the rescuer to look away or interpret complex data, thereby simplifying operation despite the integrated complexity of sensors and displays.
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 effective CPR by providing clear visual cues to rescuers, enhancing compression quality regardless of auditory limitations and environmental noise, thereby improving survival chances.
Implementation Method 1
process an electrical signal and/or an accelerometer signal received from a sensor to determine a depth of one or more chest compressions during CPR
Implementation Method 2
a first electrode pad configured to obtain at least a portion of an electrocardiogram (ECG) signal from an individual, and a second electrode pad configured to obtain at least a portion of an electrocardiogram (ECG) signal from the individual
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An automated external defibrillator (210) for use during CPR comprising: a first electrode pad (370a) configured to obtain an electrocardiogram (ECG) signal from an individual; a second electrode pad (370b) configured to obtain ECG signal from the individual, wherein the first and/or the second electrode pad comprises an electrode pad visual display (372) configured to be visible while providing CPR to the individual; a controller (310) configured to: (i) process an electrical and/or an accelerometer signal to determine a depth of one or more chest compressions during CPR; (ii) compare the determined depth of the chest compressions to a threshold depth; (ii) determine, based on the comparison, that the determined depth exceeds or falls below the threshold depth; and (iii) direct the electrode pad visual display to provide a depth indication to the user that the determined depth of the chest compressions exceeds or falls below the threshold depth.