Synchronized CPR Device with Dual Chambers
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Solution Overview
Problem
Traditional cardiopulmonary resuscitation (CPR) methods often result in insufficient cardiac output and vital organ perfusion due to air trapping and inadequate gas exchange, limiting the effectiveness of chest compressions and ventilation synchronization.
Innovation Solution
A system comprising an inspiration chamber and an expiration chamber that synchronizes chest compressions with positive pressure inspirations and negative pressure expirations, using adjustable valves to optimize pressure settings, allowing for standardized chest compressions and maximizing left ventricular stroke volume, thereby improving venous return and gas exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional chest compressions and ventilation are performed separately, then the CPR procedure is simpler to perform, but cardiac output and vital organ perfusion are insufficient
Solution Approach 1:
The patent combines chest compressions and ventilation into a single integrated device that performs both functions simultaneously. The device includes a compression chamber that applies chest compressions and a ventilation chamber that delivers breaths, merging two separate CPR procedures into one unified system that improves cardiac output while maintaining ease of operation.
Solution Approach 2:
The patent uses an intermediary mechanism (the integrated device with coordinated chambers and valves) to synchronize chest compressions with ventilation. This intermediary system ensures that compressions and breaths are delivered in precise coordination, maximizing cardiac output without requiring complex manual coordination between separate operators.
2Device complexity
If chest compressions are applied without synchronized ventilation, then the device complexity is reduced, but air trapping occurs and gas exchange is inadequate
Solution Approach 1:
The patent employs periodic action by delivering ventilation in rhythmic cycles synchronized with chest compressions. The device alternates between compression and ventilation phases in a periodic manner, ensuring that breaths are delivered at optimal intervals to prevent air trapping while maintaining adequate gas exchange without excessive device complexity.
Solution Approach 2:
The patent incorporates feedback mechanisms that monitor the compression phase and automatically trigger the ventilation phase at the appropriate moment. This feedback system ensures precise synchronization between compressions and breaths, preventing air trapping and ensuring effective gas exchange while keeping the device complexity manageable through automated control.
3Ease of operation
If chest compressions are performed without standardized pressure, then the ease of operation is improved, but left ventricular stroke volume is not maximized
Solution Approach 1:
The patent applies parameter changes by controlling and standardizing the pressure parameters of chest compressions through the integrated device. The system regulates compression pressure to optimal levels that maximize left ventricular stroke volume, transforming manual compression into a controlled process that maintains consistent, effective pressure without complicating operation.
Solution Approach 2:
The patent performs preliminary action by pre-setting the optimal compression pressure parameters within the device. The system is configured in advance to deliver compressions at the precise pressure needed to maximize stroke volume, eliminating the need for operators to manually adjust pressure during CPR while ensuring optimal hemodynamic outcomes.
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
The system enhances cardiac output and vital organ perfusion by ensuring synchronous chest compressions and decompressions with ventilation, preventing air trapping and improving blood return to the heart, leading to better CPR outcomes.
Implementation Method 1
delivering Oxygen (O2) or air to a subject (e.g., human patient) during inspiration
Implementation Method 2
extracting and expelling expired Carbon Dioxide (CO2) gas from the subject during expiration
Implementation Method 3
the adjustable pressure release valve can be set to a pressure of approximately 30 cm H2O up to approximately 300 cm H2O
Implementation Method 4
the vacuum release valve can be adjustable from approximately 0 to approximately −50 cm H2O
Data Source
AI summary
Disclosed are systems and processes related to cardiopulmonary resuscitation (CPR). One embodiment of the system comprises an inspiration chamber and an expiration chamber, which work cooperatively to provide gas (e.g., Oxygen (O2)) to a subject (e.g., human patient) during inspiration and extract and expel expired gas (e.g., Carbon Dioxide (CO2)) from the subject during expiration as a medical professional applies CPR to the subject. In other words, this disclosure provides systems and processes that allow for substantially synchronous chest compressions with positive pressure active inspirations and, also, substantially synchronous chest decompressions with negative pressure active expirations.