Ventilator Connection Socket With Removable Inlet Filter

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Solution Overview

Problem

The maintenance of medical ventilator connection sockets, particularly NIST or DISS type sockets, is cumbersome due to the need to dismantle and reassemble the socket to replace filters, which can lead to prolonged maintenance interventions and risks of equipment deterioration.

Innovation Solution

A medical ventilator with an integrated connection socket featuring an extractable filtration element that can be inserted or extracted through the inlet port of the socket body, eliminating the need to dismantle the socket for filter replacement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the filter is inserted into a chamber fitted in the internal passage of the socket body, then the gas can be filtered, but the socket must be dismantled and reassembled for filter replacement

Engineering Contradiction:
Improvegas filtrationVSAvoidfilter replacement
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The connection socket is divided into separable components: the socket body and the filter element. The filter element can be independently removed from the socket body through the inlet orifice without dismantling the entire socket assembly, enabling easy maintenance while maintaining gas filtration functionality.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The filter element is extracted as a separate, removable component from the socket body. It can be taken out through the inlet orifice for replacement without disassembling the socket, thus maintaining filtration capability while simplifying maintenance operations.

Inventive Principle:
Principle #2Taking out (Extraction)

2Reliability

If the socket is dismantled for filter replacement, then the filter can be replaced, but the maintenance time increases and equipment is immobilized

Engineering Contradiction:
Improvefilter maintenanceVSAvoidmaintenance time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The filter element is designed to be pre-positioned in the socket body through the inlet orifice. This preliminary arrangement allows the filter to be easily accessed and replaced through the same inlet opening without requiring socket disassembly, significantly reducing maintenance time and keeping the equipment operational.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If the filter is permanently fixed in the socket body, then the gas circuit is protected, but the filter cannot be easily replaced

Engineering Contradiction:
Improvegas circuit protectionVSAvoidfilter replacement
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The filter element transitions from a fixed to a movable state within the socket body. It can be easily inserted and removed through the inlet orifice, providing both gas circuit protection during operation and ease of replacement during maintenance without requiring socket disassembly.

Inventive Principle:
Principle #15Dynamics

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

Simplifies and accelerates maintenance by allowing filter replacement without opening the medical ventilator, reducing maintenance time and minimizing risks to the equipment.

Implementation Method 1

a filtration element arranged in the internal passage of the socket body

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Data Source

PatentEP3875136B1Medical ventilator with a connection socket including an easily removable filter
Publication Date: 2024.10.16 AIR LIQUIDE MEDICAL
  • EP3875136B1 patent drawingFigure 1~2
  • EP3875136B1 patent drawingFigure 3~4
  • EP3875136B1 patent drawingFigure 5

AI summary

The invention relates to a medical ventilator (10) comprising an internal gas circuit (12) in fluidic communication with a connection port (1), preferably of the NIST or DISS type. The port comprises a port body (2) with an internal passage (3) connecting an inlet port (4) and an outlet port (5), and comprising flow control means (6, 7). A filter element (8) is arranged in the internal passage (3) of the port body (2). The filter element (8) is mounted in a removable manner within the internal passage (3) of the port body (2). Insertion or extraction of the filter element (8) is carried out through the inlet port (4) of the internal passage (3) located on the free proximal end (1a) of the port body (2).