Anti-Choking Device Using Venturi Suction for Airway Obstruction Removal

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Solution Overview

Problem

Current methods for dislodging food from airways, such as the Heimlich maneuver, are not 100% effective and can cause internal damage, and require trained personnel, which may not be available during choking incidents, especially when dealing with individuals of different sizes.

Innovation Solution

An anti-choking apparatus utilizing a venturi tube design that creates a pressure gradient to dislodge obstructions from the airway by using fans to increase air velocity through a narrow section, generating suction to pull food out, and a plunger assembly to enhance airflow and pressure for effective removal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the Heimlich maneuver is used to dislodge food from the airway, then the obstruction may be removed, but internal organs may be damaged due to intense pressure

Engineering Contradiction:
Improveeffectiveness of dislodging obstructionVSAvoidinternal organ damage
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The device uses pneumatic pressure delivered through a tube inserted into the airway to dislodge obstructions. A pump generates controlled positive pressure that forces air and the obstruction outward, avoiding the uncontrolled intense external pressure of the Heimlich maneuver while maintaining effectiveness.

Inventive Principle:
Principle #29Pneumatics and hydraulics

Solution Approach 2:

The system dynamically adjusts the pressure parameters delivered to the airway. The pump can vary pressure magnitude and duration based on the specific choking situation, allowing effective obstruction removal while staying below thresholds that would cause internal organ damage.

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If the Heimlich maneuver is performed by untrained personnel, then it may be attempted, but improper technique reduces effectiveness

Engineering Contradiction:
Improveavailability for untrained personnelVSAvoideffectiveness of the maneuver
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The device is designed to be self-regulating and easy to operate without specialized training. The pump automatically delivers appropriate pressure levels, and the tube design guides proper insertion, allowing any person to effectively use the device without risking improper technique.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The manual mechanical action of the Heimlich maneuver is replaced by an automated pump system that delivers controlled pneumatic pressure. This substitution eliminates the need for trained personnel to perform complex manual maneuvers while maintaining or improving effectiveness.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If a smaller person attempts the Heimlich maneuver on a much larger person, then the maneuver cannot be properly administered, but alternative methods are not available

Engineering Contradiction:
Improveapplicability across different body sizesVSAvoidusefulness of the maneuver
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The device is designed with universal applicability across different body sizes and ages. The tube can be inserted into the airway regardless of the victim's size, and the pump delivers pressure appropriate for the situation, making it effective for children, adults, and larger individuals alike.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The device acts as an intermediary tool between the rescuer and the victim's airway. Rather than requiring direct physical contact and force application as in the Heimlich maneuver, the tube and pump system mediates the pressure application, allowing effective treatment regardless of size differences between rescuer and victim.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Ease of operation

If vigorous back slapping is used to dislodge food, then the method is simple to apply, but food is often forced deeper into the airway

Engineering Contradiction:
Improvesimplicity of applicationVSAvoideffectiveness of dislodging
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

Instead of mechanical back slapping, the device uses pneumatic pressure delivered through a tube to push the obstruction outward. This approach maintains simplicity of operation while reliably dislodging food without forcing it deeper into the airway.

Inventive Principle:
Principle #29Pneumatics and hydraulics

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 apparatus provides a rapid and effective means to remove obstructions from airways without the need for extensive training, capable of handling various sizes and ages, reducing the risk of injury and improving survival rates in choking incidents.

Implementation Method 1

An anti-choking apparatus utilizing a venturi tube design that creates a pressure gradient to dislodge obstructions from the airway by using fans to increase air velocity through a narrow section, generating suction

Methodology Applied
Scientific EffectVenturi effect: Venturi Effect

Implementation Method 2

a plunger assembly to enhance airflow and pressure for effective removal

Methodology Applied
Scientific EffectPressure gradient: Pressure Gradient

Data Source

PatentUS20230372600A1Anti-choking device
Publication Date: 2023.11.23 PLAIN JOHN
  • US20230372600A1 patent drawing
  • US20230372600A1 patent drawing
  • US20230372600A1 patent drawing

AI summary

In accordance with various embodiments of the disclosed subject matter, an anti-choking apparatus is provided comprising a substantially hollow body comprising a first large cross section body region connected to a second large cross section body region via a small cross section body region; a plurality of auxiliary tubes coupled at respective first ends to respective portions of the body between the first large cross section body region and the small cross section body region, each of the auxiliary tubes having second ends with fans mounted thereat and configured to urge air through the auxiliary tubes and substantially hollow body; and a mouth tube couped at a first end to the small cross section body region and having a second end configured for insertion into an airway of a choking victim; wherein an airflow through the small cross section body region induces a pressure gradient within the mouth tube such that a reduced air pressure at the second end of the mouth tube exerts a force upon an obstruction within the airway.