Capnography Fitting Angled Port Versatile Mask

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Solution Overview

Problem

Current capnography scavenging apparatuses are not versatile for use by both right-handed and left-handed users, and their fixed design makes it difficult to obtain optimal carbon dioxide readings, as they require manual modification of inhalation masks, which can compromise the air-tight seal and lead to inaccurate gas flow.

Innovation Solution

A capnography fitting with an angled port that allows easy insertion and removal from inhalation masks of various sizes and shapes, enabling both right-handed and left-handed users to access both sides of the mask without manual modification, ensuring an air-tight seal and accurate gas sampling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the capnography scavenging apparatus is fixed to one location on the inhalation mask, then the apparatus structure is simple and stable, but it cannot be adapted for both right-handed and left-handed users and cannot obtain optimal carbon dioxide readings

Engineering Contradiction:
Improveadaptability for different usersVSAvoidapparatus structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The sampling tube is made movable rather than fixed, allowing it to be repositioned between different locations on the inhalation mask. The tube can be inserted through openings in the mask wall and repositioned to optimize CO2 sampling while maintaining a simple overall apparatus structure.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The capnography apparatus is divided into separable components, with the sampling tube being independently movable relative to the mask. This segmentation allows the sampling tube to be repositioned without moving the entire apparatus, providing versatility while keeping each component simple.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If the sampling tube location is changed by manually punching holes into the mask wall, then the sampling tube can be repositioned, but the task is crude and difficult to perform and may compromise the air-tight seal

Engineering Contradiction:
Improveease of sampling tube repositioningVSAvoidair-tight seal
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

Openings for the sampling tube are pre-formed in the inhalation mask during manufacturing, eliminating the need for users to manually punch holes. These pre-formed openings are designed to maintain the air-tight seal while allowing easy insertion and repositioning of the sampling tube.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

A sealing mechanism or grommet is introduced as an intermediary element between the sampling tube and the mask opening. This intermediary component facilitates easy tube repositioning while maintaining the air-tight seal, preventing gas leakage and ensuring reliable capnography readings.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If the sampling tube is fixed in one location, then the apparatus is stable, but changing the location is time-consuming and cumbersome

Engineering Contradiction:
Improvetime efficiency of repositioningVSAvoidsampling tube positioning mechanism
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The sampling tube is designed to be dynamically repositionable within the mask, allowing quick movement between locations without requiring complex mechanisms. The tube can be easily inserted, removed, and repositioned through pre-formed openings, significantly reducing repositioning time.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The sampling tube utilizes flexible materials that allow it to be easily bent and repositioned within the mask. This flexibility enables rapid adaptation to different positions without requiring complex mechanical structures, maintaining simplicity while improving productivity.

Inventive Principle:
Principle #30Flexible shells and thin films

Data Source

PatentUS11696996B2Capnography tube fitting
Publication Date: 2023.07.11 HU FRIEDY MFG CO INC
  • US11696996B2 patent drawing
  • US11696996B2 patent drawing
  • US11696996B2 patent drawing

AI summary

Provided herein is a capnography fitting for use in a capnography system wherein the capnography fitting is configured to fit inhalation masks of various sizes and shapes so that viable carbon dioxide readings can be obtained from an air sample obtained from a patient's exhaled gas. The fitting includes a rigid tube having a proximal end inlet configured to receive an inhalation gas and to slidably engage a mixed gas fitting, and a distal end outlet configured to slidably engage directly to an inlet of an inhalation mask configured to cover a nose and/or mouth. The tube also includes an angled port in fluid communication with and disposed adjacent to the proximal end inlet or the distal end outlet. Methods and kits are also provided.