Ventilator Mask Size Detection and Parameter Adjustment
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Solution Overview
Problem
Current CPR methods often result in incorrect oxygen delivery due to lack of training and equipment that does not account for varying human face sizes, leading to potential injury and inadequate oxygen supply during emergencies, especially in remote locations where trained professionals are not available.
Innovation Solution
A ventilator system with multiple masks of different sizes, each with a unique gas flow restrictor, that automatically detects the size of the mask fitted and adjusts the air/oxygen flow parameters such as pressure, breath volume, and respiratory rate based on the detected size to ensure appropriate delivery for infants, children, and adults.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If CPR is administered by untrained or inadequately trained bystanders, then the response time may be quick, but the oxygen delivery may be incorrect causing injury or inadequate supply
Solution Approach 1:
The ventilator system automatically detects mask size and adjusts oxygen delivery parameters without requiring user input or training. The system self-configures based on the detected mask, eliminating the need for bystanders to know CPR protocols while ensuring accurate oxygen delivery.
Solution Approach 2:
The system automatically changes oxygen delivery parameters (pressure, volume, rate) based on the detected mask size. Different mask sizes correspond to different patient categories (infant, child, adult) and trigger appropriate parameter sets, ensuring correct delivery without user knowledge.
2Adaptability or versatility
If multiple masks of different sizes are provided, then the adaptability to different patients is improved, but the device complexity increases
Solution Approach 1:
The ventilator system automatically detects which mask is attached and self-configures the appropriate settings. The system performs the configuration task that would otherwise require user knowledge, making multiple mask sizes useful without increasing operational complexity.
Solution Approach 2:
The system uses pressure sensors to detect characteristics of the attached mask and feeds this information back to automatically select appropriate settings. This closed-loop detection ensures the correct configuration is applied without requiring user input.
3Device complexity
If manual adjustment of oxygen parameters is required, then the device simplicity is maintained, but the ease of operation deteriorates due to training requirements
Solution Approach 1:
The ventilator automatically configures itself based on mask detection, eliminating the need for users to understand or adjust technical parameters. This maintains relatively simple device structure while dramatically improving ease of operation for untrained users.
4Quantity of substance
If full breaths are administered to infants, then the oxygen supply volume is sufficient, but harmful effects occur due to respiratory system injury
Solution Approach 1:
The system automatically adjusts oxygen delivery parameters based on detected mask size. When an infant mask is detected, the system reduces pressure and volume parameters to appropriate low levels, preventing injury while maintaining sufficient oxygen delivery for the infant's smaller respiratory system.
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 ensures accurate and safe oxygen delivery tailored to the individual's size, reducing the risk of injury and improving the effectiveness of CPR by automatically adjusting parameters based on the mask size, thereby enhancing oxygen supply during emergencies.
Implementation Method 1
a detection system capable of determining a pressure created by the application of air/oxygen to a mask coupled to the ventilator supply system
Data Source
AI summary
Provided is a method that includes automatically providing air/oxygen at a pre-selected maximum pressure limit, breath volume and respiratory-rate. The pre-selected maximum pressure limit, breath volume, and respiratory-rate are automatically set as a function of a size of a mask coupled to an air/oxygen supply system. Further provided is a ventilator system that includes a ventilator mask, a ventilator supply system, and a mask conduit. The ventilator mask is configured in a size that will fit upon a selected range of sizes of human faces. The ventilator supply system includes an air/oxygen source and an air/oxygen regulator system configured to regulate air/oxygen flow parameters as a function of the size of the mask. The mask conduit is configured to couple the ventilator supply to the ventilator mask.