Emergency Exhalation Valve Diaphragm Ring Integration

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Solution Overview

Problem

Existing emergency exhalation valves in ventilators do not adequately meet safety and hygiene standards, are often expensive, and are complex to manufacture.

Innovation Solution

A connecting piece for artificial respiration with a diaphragm that can be partially closed to control airflow between a ventilation hose, a patient interface, and the atmosphere, featuring a diaphragm ring and guide segments for precise positioning, and a hinge for sealing, eliminating the need for additional components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional emergency exhalation valves are used, then safety and hygiene requirements are not adequately met, but manufacturing complexity and cost increase

Engineering Contradiction:
Improvesafety and hygieneVSAvoidmanufacturing complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the diaphragm, diaphragm ring, hinge, and sealing elements into an integrated emergency exhalation valve assembly. The diaphragm is directly mounted on the diaphragm ring which is retained by the connecting piece, eliminating the need for separate mounting components and reducing assembly steps while maintaining safety and hygiene requirements

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The connecting piece serves multiple functions: it connects the ventilation hose to the patient interface, provides structural support, retains the diaphragm ring via a groove, and guides the diaphragm movement. This multi-functionality reduces the overall number of components needed in the system

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

2Reliability

If conventional emergency exhalation valves are used, then safety and hygiene requirements are not adequately met, but manufacturing cost increases

Engineering Contradiction:
Improvesafety and hygieneVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

By integrating multiple components (diaphragm, diaphragm ring, hinge, sealing elements) into a single assembly that can be manufactured as one piece or pre-assembled unit, the patent reduces manufacturing steps, material waste, and assembly labor, thereby lowering overall manufacturing cost while ensuring safety and hygiene standards are met

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The emergency exhalation valve is designed as a disposable component that can be easily manufactured and replaced. The integrated design allows for cost-effective production of single-use units that guarantee safety and hygiene without requiring expensive, complex, reusable designs

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Reliability

If additional components are used to ensure safety and hygiene, then reliability improves, but device complexity increases

Engineering Contradiction:
Improvesafety and hygieneVSAvoidnumber of components
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the diaphragm, diaphragm ring, hinge, and sealing elements into an integrated assembly where the diaphragm ring surrounds the connecting piece and the hinge connects the diaphragm to the ring. This integration maintains safety and hygiene functions while reducing the number of separate components and simplifying the overall device structure

Inventive Principle:
Principle #5Merging (Combining)

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 solution ensures safe and hygienic operation by preventing rebreathing during therapy interruptions while simplifying manufacturing and eliminating the need for extra components, enhancing safety and cost-effectiveness.

Implementation Method 1

a diaphragm (7) which can block the diaphragm opening (13)

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

The diaphragm (7) is connected to the diaphragm ring (6) via a hinge (8)

Methodology Applied
Scientific EffectHinge mechanism: Hinge

Data Source

PatentUS11617852B2Emergency exhalation valve comprising diaphragm ring
Publication Date: 2023.04.04 LOWENSTEIN MEDICAL TECH SA
  • US11617852B2 patent drawing
  • US11617852B2 patent drawing
  • US11617852B2 patent drawing

AI summary

Disclosed is a connecting piece for artificial respiration. The connecting piece comprises an opening that faces a ventilation hose, an opening disposed toward a patient interface, and an opening to the atmosphere which can be at least partially closed from the inside by a diaphragm. The connecting piece further has a diaphragm opening for accommodating the diaphragm into the connecting piece, the diaphragm being held via a diaphragm ring that surrounds the connecting piece.