Chest-Mounted Air Diffusion Device for Stable Oxygen Delivery

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Solution Overview

Problem

Existing supplemental air delivery methods, such as masks and nasal devices, are uncomfortable, unsightly, and pose health risks, while improvised funnel devices are unstable and prone to leakage, making them unsuitable for use in various positions or by infants and young children.

Innovation Solution

A supplemental air diffusion device with a frustroconicoidal diffusion body and inlet stem, featuring coupling means for secure attachment of an air hose and accessory patient attachment devices, allowing for reliable and non-intrusive delivery of oxygen without covering the face, and providing stability through multiple attachment points.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If an oxygen mask is used to deliver supplemental air, then effective oxygen delivery is achieved, but patient comfort and social acceptability deteriorate due to claustrophobia, unsightliness, and speech inhibition

Engineering Contradiction:
Improvesupplemental air delivery effectivenessVSAvoidpatient comfort and social acceptability
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The invention extracts the oxygen delivery function from the face-covering mask and relocates it to a chest-mounted device. The diffusion body is positioned on the patient's chest with the opening facing upward, delivering oxygen away from the face, thereby eliminating claustrophobia and speech inhibition while maintaining effective oxygen delivery.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The invention introduces an intermediary diffusion body that acts as a mediator between the oxygen source and the patient's respiratory system. Instead of direct face-to-mask contact, oxygen is delivered through the diffusion body's opening, allowing ambient air mixing and reducing direct facial contact, thereby improving comfort while maintaining effectiveness.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If a nasal device is used to deliver supplemental air, then face visibility and speech ability are improved, but reliability deteriorates due to nasal breathing requirements and tube detachment risks

Engineering Contradiction:
Improveface visibility and speech abilityVSAvoidsupplemental air delivery consistency
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The invention extracts the oxygen delivery point from the nasal region and relocates it to the chest area. By positioning the diffusion body on the chest with its opening facing upward, the system eliminates the need for nasal insertion and tube attachment, thereby improving reliability while maintaining face visibility and speech ability.

Inventive Principle:
Principle #2Taking out (Extraction)

3Ease of operation

If an improvised funnel device is used to deliver supplemental air, then face coverage is avoided improving comfort, but stability deteriorates due to detachment and leakage risks

Engineering Contradiction:
Improvepatient comfort through non-intrusive designVSAvoiddevice stability and leakage prevention
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The invention merges the funnel shape with a secure mounting system by integrating the diffusion body with a headband or chest strap. This combination maintains the non-intrusive, face-free design for patient comfort while providing stable attachment to the patient's body, eliminating detachment and leakage risks associated with improvised devices.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The invention incorporates preliminary securing mechanisms (headband, chest strap, or adhesive elements) that are pre-integrated with the diffusion body. These attachment means are prepared in advance to ensure stable positioning on the patient's chest or head, preventing detachment and leakage before they can occur during use.

Inventive Principle:
Principle #10Preliminary action

4Reliability

If supplemental air is delivered effectively to ensure oxygen supply, then patient safety is improved, but social acceptability deteriorates due to visible masks and audible air bursts

Engineering Contradiction:
Improvepatient safety through adequate oxygenationVSAvoidsocial acceptability and aesthetic appearance
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The invention extracts the visible and audible elements of oxygen delivery from the facial region and relocates them to the chest area. The diffusion body mounted on the chest delivers oxygen away from the face, reducing visual prominence and eliminating audible air bursts near the mouth, thereby improving social acceptability while maintaining adequate oxygenation for patient safety.

Inventive Principle:
Principle #2Taking out (Extraction)

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 device ensures consistent and safe delivery of supplemental air to patients in various positions, reducing the risk of detachment and leakage, and is aesthetically pleasing, making it suitable for use by infants and children without compromising oxygen supply.

Implementation Method 1

a frustroconicoidal diffusion body integrally attached to the inlet stem

Methodology Applied
Scientific EffectDiffusion: Diffusion

Data Source

PatentUS8851072B2Supplemental air diffusion devices, kits and methods
Publication Date: 2014.10.07 WASATCH MFG
  • US8851072B2 patent drawing
  • US8851072B2 patent drawing
  • US8851072B2 patent drawing

AI summary

A supplemental air diffusion device is shaped and configured to be attached to the body or clothing of a patient below the head and deliver supplemental air toward the mouth and nose of the patient. The supplemental air diffusion device includes a frustroconicoidal air diffusion body that has a smaller inlet opening at an inlet end and an enlarged diffusion opening at a diffusion end. An air inlet stem is integrally attached to the air diffusion body and includes a plurality of ribs and/or recesses for releasably locking a female connector of an air supply hose over the inlet stem. A pair of spaced-apart slits are provided through a flange extending laterally from an outer surface of the air diffusion device. Initially separate accessory patient attachment clamps are looped through the slits and provide for releasable attachment of the air diffusion device to a patient's clothing. A kit may include an air diffusion device, one or more accessory patient attachment clamps, and an air supply hose for establishing fluid communication between the air diffusion device and an air supply.