Automatic Rescue Breathing Unit with Pneumatic Channel Selection

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Solution Overview

Problem

Current automatic rescue breathing units (ARBUs) face challenges in accurately delivering rescue breaths to patients of different ages and sizes, leading to potential errors in CPR, especially in remote locations where trained professionals may not be readily available.

Innovation Solution

The development of an ARBU system with a keying mechanism and ventilation unit that automatically selects and delivers appropriate breath profiles based on the size of the airway device attached, using a pneumatic system with independently controlled channels for adult, child, and infant settings, ensuring precise respiratory parameters without user adjustment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual selection of breath parameters is used in ARBU, then device complexity is reduced, but reliability of CPR delivery deteriorates due to potential human error

Engineering Contradiction:

Improvereliability of CPR deliveryVSAvoiddevice complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system automatically detects airway device type and selects appropriate breath parameters without user intervention. The controller autonomously matches respiratory settings to patient age groups, eliminating human error while maintaining simplicity for the end user.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system changes respiratory parameters (breath volume, pressure, rate) based on detected airway device type. Different parameter sets are automatically applied for adult, child, and infant patients, ensuring reliable delivery without requiring manual configuration.

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If multiple air channels are provided for different patient ages, then adaptability to different patients is improved, but device complexity increases due to multiple channels and controls

Engineering Contradiction:

Improveadaptability to different patientsVSAvoiddevice complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system segments air delivery into distinct channels (first air channel for adults, second air channel for children/infants) with dedicated flow control valves. This segmentation allows tailored respiratory support while automating selection to prevent complexity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A single ARBU device serves multiple patient populations (adults, children, infants) through automated detection and selection. The system universally handles different airway devices by automatically matching appropriate breath parameters without requiring separate devices or manual setup.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Manufacturing precision

If automatic detection of airway device type is implemented, then manufacturing precision of matching parameters is improved, but device complexity increases due to detection mechanisms

Engineering Contradiction:

Improveprecision of breath parameter matchingVSAvoiddevice complexity

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The system replaces manual mechanical selection with automated electronic detection. The controller uses sensors and algorithms to identify airway device type and automatically selects corresponding breath parameters, achieving precise matching without complex manual mechanisms.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system implements feedback by continuously monitoring airway device characteristics and adjusting breath parameter selection accordingly. The controller receives input from sensors about the connected device type and automatically configures appropriate respiratory settings based on this feedback.

Inventive Principle:

Principle #23Feedback

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

This solution enhances the reliability and safety of CPR by automatically selecting the correct air channel and respiratory parameters, reducing the risk of human error and ensuring consistent delivery of life-saving oxygenation, even in high-stress situations.

Implementation Method 1

a pneumatic system with independently controlled channels for adult, child, and infant settings

Methodology Applied

Scientific EffectPneumatic pressure differential: Pressure Gradient

Data Source

PatentUS20250010014A1Component additions for an automatic rescue breathing unit

Publication Date: 2025.01.09 MCCARTHY DANIEL A

AI summary

A rescue breathing apparatus and various components for use with the rescue breath apparatus are disclosed. The apparatus is an automatic rescue breathing unit (ARBU) device that includes at least two sub-systems—an airway device and a ventilation unit. In some instances, a compression pad is implemented with the ARBU device to prevent breaths during chest compressions. A breath pause button may be added to the ARBU device to pause breaths as controlled by personnel operating the ARBU device (e.g., a practitioner). A rescue breath kit with individual ARBU devices for different types of patients is also disclosed.