CPR Feedback System with Integrated Compression and Ventilation Sensors
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Solution Overview
Problem
Current CPR measurement and feedback systems fail to provide comprehensive feedback on both compression and ventilation activities, leading to suboptimal performance by trained professionals and lack of affordability and portability for lay rescuers, resulting in potential harm to patients and inefficiencies in emergency responses.
Innovation Solution
A compact, energy-efficient system that provides tactile, auditory, visual, and graphical feedback on compression depth, rate, inactivity, ventilation rate, and tidal volume, using integrated sensors and processing units to guide rescuers through correct CPR techniques, suitable for both trained personnel and laypersons, and capable of recording and transmitting data for further analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If comprehensive CPR feedback systems are implemented to monitor both compression and ventilation activities, then CPR performance and survival rates improve, but device complexity and cost increase
Solution Approach 1:
The patent combines compression feedback and ventilation feedback into a single integrated CPR assessment system. The device merges multiple sensing capabilities (force sensors for compression, flow sensors for ventilation) and multiple feedback modalities (auditory, visual, tactile) into one unified system that simultaneously monitors both compression and ventilation quality, resolving the contradiction by integrating functions rather than using separate devices
Solution Approach 2:
The CPR assessment device is designed to perform multiple functions: it monitors compression depth and rate, ventilation volume and rate, provides real-time feedback through multiple channels, and assesses overall CPR quality. This multi-functional design allows a single device to replace what would otherwise require multiple separate monitoring tools, improving reliability without proportionally increasing complexity
2Ease of operation
If standalone CPR feedback devices are made compact and energy-efficient for lay rescuers, then accessibility and portability improve, but measurement precision and feedback reliability may be reduced
Solution Approach 1:
The patent replaces complex mechanical sensing systems with electronic and optical sensing technologies. Force sensors use electrical resistance changes rather than mechanical linkages, ventilation sensing uses optical or electrical flow detection rather than mechanical flow meters. This substitution enables compact, energy-efficient design while maintaining or improving measurement precision compared to traditional mechanical systems
Solution Approach 2:
The device monitors multiple parameters simultaneously (compression depth, compression rate, ventilation volume, ventilation rate) and integrates them to provide comprehensive CPR quality assessment. By changing from single-parameter to multi-parameter monitoring and using energy-efficient sensors, the system achieves high precision in a compact form factor suitable for lay rescuers
Data Source
AI summary
A system and a method is disclosed for monitoring parameters during cardiopulmonary resuscitation, including a compression measuring means, a ventilation measuring means and a processing means. If at least one of the measured values deviate from a respective reference range, the processing means provides an indication of the deviation. If more than one of the measured values deviate from a respective reference range, the deviations are prioritized with an indication being provided first to the deviation having a higher priority. The invention also regards a device for positioning on a patient's chest during cardiopulmonary resuscitation, which measures compression and which comprises a feedback module for providing a tactile output related to the measurements.