Adjustable Respirator Shell Buffer Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional respirator shells face issues with sealing due to their complex configuration, leading to pulmonary rehabilitation therapy inefficiencies and potential cracking at edge contacts, especially at the armpits, which affects long-term usage.
Innovation Solution
An adjustable respirator shell design featuring a body with a protrusive portion and contact portion, a belt for fastening, and a buffer with cushions to ensure secure contact and sealing, utilizing a fluid pressure controller to manage gas pressure and airflow for customizable fit and pressure distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional respirator shell with complex configuration is used, then it can provide particular sizes for different patients, but sealing problems occur due to the complicated configuration
Solution Approach 1:
The respirator shell is divided into a body portion and a separate buffer portion that can be independently adjusted. The buffer is segmented into multiple adjustable sections that can be customized to fit different body contours, improving sealing without requiring a completely different configuration for each size.
Solution Approach 2:
The buffer is designed with adjustable and flexible characteristics, allowing it to dynamically adapt to different patient body types. The buffer can be adjusted in thickness and shape to maintain optimal sealing contact, transforming from a static fixed configuration to a dynamic adjustable one.
2Duration of action of moving object
If the respirator shell is used for long-term usage, then pulmonary rehabilitation therapy can be provided, but cracks happen at edge portions that contact the trunk
Solution Approach 1:
A buffer is provided between the contact portion of the respirator shell and the patient's trunk to cushion and distribute mechanical stress before it reaches the edge portions. This prevents concentration of forces that would otherwise cause cracking during long-term usage.
Solution Approach 2:
The buffer material properties are specifically selected to provide optimal stress distribution characteristics. By changing the physical parameters of the interface (introducing a compliant buffer layer), the mechanical stress on the shell edges is reduced, preventing fatigue cracking over time.
3Ease of operation
If the contact portion directly contacts the human body trunk, then fast securing is achieved, but mechanical stress concentrates at edge portions causing cracks
Solution Approach 1:
The buffer serves as an intermediary element between the respirator shell's contact portion and the patient's trunk. It maintains the necessary contact for secure fastening while simultaneously distributing mechanical stress, preventing the harmful concentration of forces at the shell edges.
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 adjustable design enhances sealing and prevents cracking at edge contacts, providing a customizable fit for various body types, improving pulmonary rehabilitation by ensuring effective gas exchange and reducing mechanical stress on the respirator shell.
Implementation Method 1
the contact portion contacts the human body trunk via the buffer. In addition, the buffer includes at least one cushion
Data Source
AI summary
An adjustable respirator shell, suitable for being worn on a human body trunk, includes a body, a belt and a buffer. The body includes a protrusive portion and a contact portion. The protrusive portion has an opening connecting a fluid pressure controller, and the contact portion is to contact the human body trunk. The belt, connecting the body, is to surround the human body trunk so as to fasten the adjustable respirator shell on the human body trunk. The buffer covers a circumference of the contact portion, and the contact portion contacts the human body trunk via the buffer. In addition, the buffer includes at least one cushion.