Dual Sensor CPR Feedback System with Textured Padding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current chest compression sensors during CPR lack accuracy and comfort due to issues like compressible foam layers, sensor tilt, and rotation, particularly in pediatric patients, leading to measurement errors and user discomfort.
Innovation Solution
A dual sensor system with a pair of motion sensors, one anterior and one posterior, embedded in a low-profile design with textured padding providing tactile feedback and a slip-resistant surface, to accurately measure compression depth and enhance user comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single chest compression sensor is used, then the device complexity is reduced, but the measurement precision deteriorates due to inability to account for external movements and compressible surfaces
Solution Approach 1:
The patent divides the sensing function into multiple independent motion sensors placed at different locations (anterior and posterior positions) on the patient's chest. Each sensor independently measures local motion, and the system processes these segmented measurements to calculate comprehensive compression depth, thereby improving measurement precision while maintaining manageable device complexity through modular sensor placement.
Solution Approach 2:
The patent introduces an intermediary computational processing system that receives raw data from multiple motion sensors and calculates compression depth by analyzing the differential motion between sensors. This intermediary layer transforms complex multi-sensor data into accurate compression measurements, resolving the contradiction by adding computational complexity rather than physical sensor complexity.
2Reliability
If a smooth sensor surface is used, then the ease of operation is improved, but the reliability deteriorates due to hand slippage during chest compressions
Solution Approach 1:
The patent applies textured padding with non-slip surface features at the specific location where user contact occurs during chest compressions. This localized texturing provides the necessary friction for reliable sensor placement and hand grip, while the rest of the sensor housing maintains a smooth finish for ease of operation and cleaning, thus resolving the contradiction between reliability and ease of operation.
Data Source
AI summary
A system for assisting a user in providing chest compressions to a patient includes: a first motion sensor configured for measuring motion of a first region of a thorax of the patient; and a first housing physically coupled with the first motion sensor. The first housing includes: a first frame for holding the first motion sensor in place, and a textured padding for receiving at least a portion of at least one hand of the user during chest compressions. The textured padding covers the first frame and the first motion sensor. The textured padding comprises an exterior having a plurality of raised surface features. The system also includes: a second motion sensor configured for measuring motion of a second region of the thorax of the patient; and a second housing physically coupled with the second motion sensor and having a second frame for holding the first motion sensor in place.