CPR Machine Camera for Patient Position Monitoring

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Solution Overview

Problem

Current CPR chest compression machines face challenges in maintaining effective blood circulation due to potential shifts in the patient's body position, which can lead to ineffective compressions and reduced efficacy in preventing organ damage and death during medical emergencies.

Innovation Solution

A CPR machine equipped with a retention structure, compression mechanism, and integrated camera or ultrasound capabilities to monitor and adjust for patient position shifts, utilizing sight targets and imaging to ensure accurate and consistent compressions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of time

If manual CPR is performed by trained rescuers, then CPR can be initiated quickly, but the quality of compressions degrades over time due to rescuer fatigue and stress

Engineering Contradiction:
Improvetime to initiate CPRVSAvoidquality of chest compressions
Core Design Contradiction:
Loss of timeVSReliability

Solution Approach 1:

The CPR machine performs chest compressions autonomously without requiring continuous human intervention. The device self-regulates compression depth, rate, and quality while maintaining consistent performance throughout the resuscitation period, eliminating the degradation seen in manual CPR due to rescuer fatigue.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces the manual mechanical system of human rescuers with an automated mechanical CPR device. This substitution ensures consistent, guideline-compliant compressions are delivered without the variability and fatigue inherent in human-performed manual CPR.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If CPR chest compression machines are used to maintain consistent compression quality, then compression reliability improves, but the patient's body position may shift during repeated compressions, reducing effectiveness

Engineering Contradiction:
Improvequality of chest compressionsVSAvoidplacement accuracy of compressions
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The CPR machine incorporates a camera system that continuously monitors the patient's body position and the location of sight targets. This visual feedback is processed by a controller that adjusts the compression mechanism in real-time to maintain accurate placement on the chest, compensating for any body shifts that occur during resuscitation.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system transitions from a static compression approach to a dynamic one, where the compression mechanism continuously adapts its position and parameters based on real-time visual feedback from the camera system. This allows the machine to maintain optimal compression placement even as the patient's body position changes.

Inventive Principle:
Principle #15Dynamics

3Speed

If the chest is actively decompressed using suction cup lifting, then decompression speed improves, but the system complexity increases

Engineering Contradiction:
Improvedecompression rateVSAvoidmechanism complexity
Core Design Contradiction:
SpeedVSDevice complexity

Solution Approach 1:

The suction cup mechanism serves multiple functions: it provides active decompression by lifting the chest, maintains secure attachment of the compression device to the patient's body, and potentially aids in positioning. This multi-functionality justifies the added complexity by delivering multiple benefits from a single integrated component.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP3220820B1CPR chest compression machine with camera
Publication Date: 2019.10.23 PHYSIO CONTROL CORP
  • EP3220820B1 patent drawingFigure 1
  • EP3220820B1 patent drawingFigure 2~3
  • EP3220820B1 patent drawingFigure 4~5

AI summary

A CPR chest compression machine includes a retention structure (140) configured to retain a patient's (182) body, and a compression mechanism (148) configured to perform automatically CPR compressions to the patient's (182) chest. The CPR machine also includes a camera (161) coupled to the retention structure (140) or to the compression mechanism (148). The camera (161) has a field of view (162) that spans at least a certain portion of the patient's (182) body, and is configured to acquire an image (407) of what is spanned by its field of view. The image (407) may be stored in a memory (130), displayed, transmitted, analyzed to diagnose the patient, detect shifting of the patient within the CPR machine, etc.