Adjustable CPR Chest Compression Mechanism for Blood Flow Optimization
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Solution Overview
Problem
Current CPR chest compression machines perform consistent, non-physiologic compressions at the same location, potentially missing opportunities to optimize blood flow through the patient's circulatory system.
Innovation Solution
A CPR chest compression machine with a retention structure, a compression mechanism, and an adjustment mechanism that allows for varying compression depths, active decompression heights, and shifting of the compression mechanism to different locations on the patient's chest, enabling optimized blood flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If CPR chest compression machines perform consistent compressions at the same location, then compression precision and reliability are improved, but blood flow optimization through the circulatory system is compromised
Solution Approach 1:
The compression mechanism is made dynamically adjustable to vary compression locations between the first and second positions on the patient's chest. This allows the system to alternate between different anatomical regions (e.g., left and right sides of the chest) to optimize blood flow through different parts of the circulatory system while maintaining reliable, controlled compression delivery.
Solution Approach 2:
The compression sequence is divided into segments alternating between two distinct locations on the chest. By segmenting the compression routine into alternating positions, the system can target different cardiac chambers and vascular regions sequentially, improving overall circulatory effectiveness while maintaining the reliability of each individual compression.
2Adaptability or versatility
If the compression mechanism is shifted to different locations on the patient's chest, then blood flow optimization is improved, but device complexity increases
Solution Approach 1:
The adjustment mechanism serves multiple functions: it positions the compression mechanism at different chest locations, ensures proper retention structure alignment, and coordinates with the driver system to maintain compression timing and depth accuracy. This multi-functionality reduces the need for separate systems for each task, thereby limiting the increase in overall device complexity.
Solution Approach 2:
The adjustment mechanism is integrated with the retention structure and driver system rather than being a separate independent component. This merging of functions allows the system to achieve location variability while sharing mechanical and control resources across different subsystems, thereby reducing the net increase in device complexity.
3Adaptability or versatility
If various types of chest compressions are performed on a patient during a single resuscitation event, then blood flow optimization is improved, but ease of operation decreases
Solution Approach 1:
The driver system automatically controls the compression mechanism to alternate between different compression locations and types based on pre-programmed sequences. This self-service automation eliminates the need for manual intervention to change compression parameters, maintaining ease of operation while delivering varied compression therapies optimized for different circulatory needs.
Solution Approach 2:
The system incorporates sensors and control logic that monitor compression delivery and automatically adjust the sequence and location of compressions based on detected physiological parameters or performance metrics. This feedback-driven automation allows the machine to adaptively provide various compression types without requiring complex manual operation, thereby maintaining ease of use while achieving blood flow optimization.
Data Source
AI summary
A CPR chest compression machine includes a retention structure that is configured to retain a body of the patient, and a compression mechanism. The compression mechanism is coupled to the retention structure and configured to perform successive compressions to the patient's chest. Various types of chest compressions may be performed on a patient during a single resuscitation event. Some embodiments also include a driver configured to drive the compression mechanism. The compression mechanism may thus perform chest compressions that differ from each other in a number of aspects, for example the depth of the compressions or the height of the active decompressions between the compressions. Some embodiments also include an adjustment mechanism. The adjustment mechanism may shift the compression mechanism with respect to the patient so that the chest compressions are performed at different locations of the patient's chest.