Multi-Source Ventilator Attachment for Positive Pressure Transfer

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Solution Overview

Problem

Current ventilators are invasive, costly, and unsuitable for remote locations due to their reliance on continuous oxygen supply and electrical power, posing infection risks and challenging transport ventilation by disrupting fluid flow during transfers.

Innovation Solution

A ventilator using a mechanical valve system activated by patient breathing pressure to control airflow, eliminating the need for continuous oxygen flow and electrical power, and incorporating a venturi nozzle with a pressure force multiplier to maintain fluid pressure during transfers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If current ventilators use continuous oxygen supply and electrical power, then they can maintain proper ventilation function, but they increase operational costs and are unsuitable for remote locations

Engineering Contradiction:

Improveventilation functionVSAvoidoxygen consumption and electrical power

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The ventilator uses periodic action by activating the compressed oxygen tank only during patient inhalation phases rather than continuous operation. The mechanical valve system opens and closes based on breathing cycles, allowing the system to function reliably with intermittent energy input instead of continuous supply

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The ventilator employs self-service through patient's own breathing efforts to drive the mechanical valve system. The pressure differential created by patient inhalation automatically opens the valve to allow oxygen flow, eliminating the need for external electrical control systems and reducing overall energy requirements

Inventive Principle:

Principle #25Self-service

2Reliability

If current ventilators are used for transport ventilation, then patients receive continuous ventilation, but fluid flow disruption occurs during transfers between oxygen sources

Engineering Contradiction:

Improvecontinuous ventilationVSAvoidtransfer efficiency

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The system prepares for transfer by maintaining a reservoir of compressed oxygen that can immediately take over when the primary oxygen source is disconnected. This preliminary preparation ensures that no gap in oxygen delivery occurs during the transfer process, maintaining continuous ventilation without fluid flow disruption

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The compressed oxygen tank acts as an intermediary between the primary oxygen source and the patient during transfer operations. It temporarily assumes the oxygen delivery function, allowing smooth transition without direct disruption to the patient's oxygen supply while the primary source is being reconnected or replaced

Inventive Principle:

Principle #24Intermediary (Mediator)

3Reliability

If intubation and full ventilation are used for severe respiratory cases, then oxygen transfer to blood is improved, but invasive procedures and infection risks increase

Engineering Contradiction:

Improveoxygen transferVSAvoidinfection risk and invasiveness

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The system extracts the essential oxygen delivery function from the complex intubation and full ventilation apparatus. By providing oxygen through a simpler mask-based interface with compressed oxygen supplementation, it separates the critical oxygenation function from the invasive mechanical ventilation components, reducing infection risk while maintaining effective oxygen transfer

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

This solution reduces economic and environmental costs, minimizes infection risks, and ensures continuous fluid pressure during patient transport, enhancing ventilator efficiency and safety.

Implementation Method 1

venturi nozzle with a pressure force multiplier to maintain fluid pressure during transfers

Methodology Applied

Scientific EffectVenturi effect: Venturi Effect

Implementation Method 2

pressure force multiplier to maintain fluid pressure during transfers

Methodology Applied

Scientific EffectPressure differential: Pressure Gradient

Data Source

PatentUS12186488B2Selective attachment device with multiple fluid sources for maintaining positive fluid pressure

Publication Date: 2025.01.07 LEGACY US INC

AI summary

There is provided an attachment device for maintaining positive fluid pressure, the attachment device comprising a body having a fluid outlet port and at least two positive pressure fluid inlet ports; wherein each of the at least two positive pressure fluid inlet ports is connectable to a respective fluid source; wherein each of the at least two positive pressure fluid inlet ports is in fluid communication with the fluid outlet port; wherein each of the at least two positive pressure fluid inlet ports comprises an attachment device mechanism for selectively starting and stopping a flow of fluid from the respective fluid source to the fluid outlet port, and wherein the attachment device mechanism comprises a valve moveable between an open valve position and a closed valve position. An attachment device, connector, and method of using an apparatus suitable for a ventilator is also disclosed.