Nebulizer Baffle Support Groove Aerosol Collection

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Solution Overview

Problem

Existing nebulizer kits face inefficiencies in aerosol production and discharge due to mist particles collecting on the baffle support portion and inner circumferential surface of the outside air introduction tube, leading to reduced aerosol efficiency.

Innovation Solution

A nebulizer kit design featuring a closed-ended cylindrical case body with a flow channel formation member, an outside air introduction tube with a long groove, and a compressed air introduction tube, where the baffle support portion is contained within the groove to ensure flush surfaces and a press-fit configuration, preventing aerosol collection and enhancing discharge efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If the baffle support portion is located further inward in the diametrical direction than the inner circumferential surface of the outside air introduction tube, then the structural support is improved, but a large amount of mist particles or aerosol collects on these surfaces resulting in reduced aerosol production and discharge efficiency

Engineering Contradiction:
Improvestructural supportVSAvoidaerosol production and discharge efficiency
Core Design Contradiction:
StrengthVSProductivity

Solution Approach 1:

The invention extracts the harmful interaction between the baffle support portion and the inside of the outside air introduction tube by positioning the baffle support portion outward relative to the inner circumferential surface, thereby removing the source of aerosol collection and improving discharge efficiency

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The invention changes the spatial arrangement by extending the baffle support portion in a different dimensional relationship to the outside air introduction tube, specifically positioning it outward rather than inward, which prevents aerosol accumulation while maintaining structural integrity

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Productivity

If the baffle support portion is positioned outward relative to the inner circumferential surface of the outside air introduction tube, then aerosol collection is prevented improving discharge efficiency, but the structural support may be compromised

Engineering Contradiction:
Improveaerosol discharge efficiencyVSAvoidstructural support
Core Design Contradiction:
ProductivityVSStrength

Solution Approach 1:

The harmful aerosol collection issue is extracted and eliminated by repositioning the baffle support portion outward, while the structural support function is preserved through proper design of the support portion's geometry and material properties

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The baffle support portion is designed with specific local characteristics including its outward positioning and dimensional relationships that simultaneously achieve both structural support and prevention of aerosol collection, optimizing both strength and productivity

Inventive Principle:
Principle #3Local quality

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 design effectively prevents aerosol collection, allowing for improved aerosol production and discharge efficiency by ensuring the baffle support portion fits snugly within the groove, reducing discharge resistance and enhancing the nebulizer's performance.

Implementation Method 1

a liquid (not shown) sucked upward to the vicinity of the atomizing area M from a reservoir portion 216 due to the effects of negative pressure produced at the atomizing area M

Methodology Applied
Scientific EffectNegative pressure: Pressure Drop

Implementation Method 2

a liquid W turns into fine liquid droplets upon colliding with the baffle 222, becoming mist particles as a result

Methodology Applied
Scientific EffectCollision: Impact Force

Implementation Method 3

these mist particles are added to the outside air introduced into the case body 210, thus producing an aerosol within the case body 210

Methodology Applied
Scientific EffectMixing: Diffusion

Data Source

PatentUS8677989B2Nebulizer kit and nebulizer
Publication Date: 2014.03.25 OMRON HEALTHCARE CO LTD
  • US8677989B2 patent drawing
  • US8677989B2 patent drawing
  • US8677989B2 patent drawing

AI summary

A nebulizer kit includes a case body, a flow channel formation member that covers an opening of the case body, an outside air introduction tube erected vertically from a base surface of the flow channel formation member and including a long groove formed in an inner circumferential surface thereof, a compressed air introduction tube below the outside air introduction tube within the case body and extending toward the interior of the outside air introduction tube, and an atomizing area formation member. The atomizing area formation member includes a liquid suction tube formation portion, a baffle, and a baffle support portion that connects the liquid suction tube formation portion and the baffle and that extends toward a side area of the baffle from an outer surface of the liquid suction tube formation portion. The baffle support portion is contained within the long groove of the outside air introduction tube.