Automated Ventilator for Continuous CPR Oxygenation
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Solution Overview
Problem
Current CPR methods, particularly Mouth-To-Mouth Ventilation (MTMV) CPR, face challenges such as rescuer fear of disease transmission, interruption of chest compressions for ventilation, inadequate gas volumes, and low oxygen delivery, leading to ineffective ventilation and reduced patient survival rates during out-of-hospital cardiac arrests.
Innovation Solution
A system for simultaneous ventilation and resuscitation that includes an oxygen source, inspiration and expiration control valves, a breathing apparatus, and a timer, allowing continuous chest compressions while providing oxygenated ventilation without interrupting the compression process, guided by an indicator that synchronizes the actuation of valves and compressions at a consistent rate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If Mouth-To-Mouth Ventilation CPR is performed, then ventilation is provided to the patient, but chest compressions must be interrupted and oxygen delivery is limited to about 15%
Solution Approach 1:
The patent introduces a bag-valve-mask device as an intermediary tool between the rescuer and the patient's airway. This device allows the rescuer to deliver pre-oxygenated breaths without direct mouth-to-mouth contact, eliminating the need to interrupt compressions for ventilation while providing higher oxygen concentrations (up to 100% oxygen via the reservoir bag) rather than the rescuer's expired air (15% oxygen).
Solution Approach 2:
The patent employs a reservoir bag that is pre-filled with high-concentration oxygen before ventilation is delivered. This preliminary oxygenation of the breathing bag allows the rescuer to immediately deliver high-oxygen breaths without interrupting chest compressions, as the oxygen is already prepared and ready for delivery through the bag-valve-mask system.
2Quantity of substance
If Mouth-To-Mouth Ventilation CPR is performed, then ventilation is provided to the patient, but rescuer fear of disease transmission occurs
Solution Approach 1:
The bag-valve-mask device serves as a physical barrier and intermediary between the rescuer and the patient's airway. The mask creates a seal over the patient's mouth and nose, while the bag allows the rescuer to deliver breaths remotely by squeezing the bag, eliminating direct contact with the patient's mouth and reducing disease transmission risk while maintaining effective ventilation delivery.
3Quantity of substance
If Bag-Valve-Mask ventilation is used, then oxygen delivery is improved, but chest compressions must be interrupted
Solution Approach 1:
The system pre-fills a reservoir bag with high-concentration oxygen before ventilation is needed. This preliminary preparation allows the rescuer to immediately deliver pre-oxygenated breaths through the bag-valve-mask device without interrupting ongoing chest compressions, as the oxygen is already loaded and ready for immediate delivery.
Solution Approach 2:
The patent enables continuous chest compressions to proceed without interruption while ventilation is delivered through the bag-valve-mask device. The rescuer can maintain uninterrupted compressions and deliver breaths at appropriate intervals by squeezing the pre-oxygenated bag, ensuring continuous blood flow while providing necessary ventilation.
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 enables effective and continuous oxygen delivery to patients, improving survival rates by maintaining continuous blood flow and oxygenation to vital organs, while being easier to use and more effective than traditional CPR methods, with the lay public able to perform effective chest compressions and ventilation without extensive training.
Implementation Method 1
a gas including oxygen can flow from the oxygen source to the lungs
Implementation Method 2
at least one inspiration control valve may be disposed between the oxygen source and the patient
Implementation Method 3
at least one expiration control valve may be configured to selectively actuate an exhalation valve
Implementation Method 4
The breathing apparatus may be disposed downstream from the inspiration control valve and may be configured to form an air seal with at least a portion of the patient's respiratory tract
Data Source
AI summary
A system for performing simultaneous ventilation and resuscitation of a patient includes an oxygen source, at least one inspiration control valve, a breathing apparatus, at least one expiration control valve, at least one indicator, and at least one timer. The breathing apparatus is configured to form an air seal with at least a portion of the patient's respiratory tract such that a gas including oxygen can flow from the oxygen source to the lungs. The at least one expiration control valve being configured to selectively actuate an exhalation valve. The at least one indicator for indicating when a rescuer should perform a chest compression. The at least one timer for synchronizing actuation of the at least one inspiration control valve, the at least one expiration control valve, and the indicator, thereby enabling continuous compressions to be provided to the patient while the patient undergoes inspiration and expiration.