Replaceable Mouthpiece for Nebulizer Airflow and Hygiene
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Solution Overview
Problem
Current nebulizers face difficulties in cleaning and adjusting airflow, which affects inhalation comfort and hygiene, as the mouthpiece is often integrated with the nebulizer unit, making it hard to change and clean, and airflow adjustment is not easily customizable.
Innovation Solution
A nebulizer unit with an exchangeable mouthpiece featuring air inlet channels and a connection system that allows for easy attachment and detachment, enabling adjustable airflow and improved cleaning, along with a pressure sensor integration for precise respiratory monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the mouthpiece is integrated with the nebulizer unit, then the structure is simpler, but cleaning becomes more difficult and airflow adjustment is not easily customizable
Solution Approach 1:
The mouthpiece is separated from the nebulizer unit and designed as a replaceable component. This segmentation allows the mouthpiece to be easily removed for cleaning and replaced with different versions having different airflow characteristics, thus resolving the contradiction between structural simplicity and ease of operation.
Solution Approach 2:
The system transitions from a fixed, integrated mouthpiece to a dynamic configuration where multiple mouthpieces with different airflow characteristics can be exchanged. This enables flexible adaptation to different user needs and therapeutic requirements while maintaining a simple base structure.
2Ease of manufacture
If the mouthpiece is fixed and integrated, then manufacturing is simpler, but adaptability to different user needs is reduced
Solution Approach 1:
The nebulizer unit is designed with a universal connection interface that accepts multiple types of mouthpieces. This allows a single base unit to serve multiple functions and adapt to different user requirements by simply changing the mouthpiece component, thus achieving versatility without complicating the main manufacturing process.
Solution Approach 2:
By separating the mouthpiece as an independent, replaceable component, the system enables easy adaptation to different user needs through component exchange rather than redesigning the entire device, maintaining manufacturing simplicity while enhancing adaptability.
3Productivity
If air inlet holes are present in the nebulizer unit, then airflow is available, but cleaning becomes more difficult and condensate contamination increases
Solution Approach 1:
The air inlet function is extracted from the nebulizer unit and relocated to the replaceable mouthpiece. This extraction eliminates the need for air inlet holes in the main unit, preventing condensate contamination and simplifying cleaning, while maintaining airflow availability through the mouthpiece's integrated air channels.
Solution Approach 2:
The replaceable mouthpiece acts as an intermediary component that provides the air inlet function without creating contamination risks in the main nebulizer unit. It serves as a barrier that protects the aerosol generator from condensate and contamination while enabling airflow.
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 exchangeable mouthpiece simplifies cleaning and airflow adjustment, enhancing user comfort and hygiene by allowing customizable air intake and precise monitoring of the respiratory process.
Implementation Method 1
The vibration generator is usually an annular piezoelectric crystal, which is mechanically coupled to the mesh membrane, possibly via an interposed carrier plate, and surrounds the perforated area. Electrical excitation and the resulting deformation of the piezoelectric crystal causes the perforated area of the mesh membrane to bend, which oscillates at a rate determined by the electrical excitation signal, thereby forcing a drug fluid applied on one side into the fine pores and releasing it on the other side in the form of an aerosol of micrometer-fine droplets.
Implementation Method 2
releasing it on the other side in the form of an aerosol of micrometer-fine droplets
Data Source
Figure 1
Figure 2
Figure 3A~3C
AI summary
Disclosed is an atomizer unit with a replaceable mouthpiece, comprising: the atomizer unit (1) inside which an aerosol generator (101), retained by a sealing ring (102) and a retention structure (103), is located and on which a connection or attachment point (12) for a replaceable mouthpiece (2) is formed on a discharge side of the aerosol generator (101); the replaceable mouthpiece (2) that is shaped in such a way that it can be plugged onto the attachment point (12) of the atomizer unit (1); and at least one air duct (24) on one side of the mouthpiece (2); one end of said at least one air duct (24) extends into an aerosol chamber (120) which is delimited by the aerosol generator (101) at the front end and by the connection piece (12) and the mouthpiece (2) along the periphery.