Moisture Heat Exchanger Speaking Valve Integration
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Solution Overview
Problem
Existing moisture and heat exchangers for tracheostomy and laryngectomy patients are complex and costly to manufacture, particularly when integrating a speaking function, which complicates the design and increases production expenses.
Innovation Solution
A simplified design for a moisture and heat exchanger with a speech function is achieved by using a holding means within the filter housing to securely attach the filter body, allowing freedom of movement for the speaking valve during breathing, and incorporating a membrane with attachment points and a compressible filter body made of elastic foam for secure retention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a membrane and valve housing structure are used to enable speaking function, then the speaking function is achieved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines the filter body and speaking valve into a single integrated unit. The membrane is attached directly to the filter body, eliminating the need for separate valve housings and complex assembly structures. This merging of components achieves the speaking function while significantly reducing device complexity and manufacturing cost.
Solution Approach 2:
The filter body serves multiple functions: it filters particles, humidifies air, and acts as the base for the speaking valve mechanism. The membrane both covers the opening and functions as a non-return valve. This multi-functionality reduces the number of separate components needed, simplifying the overall device structure.
2Stability of the object's composition
If the filter body is securely held in place, then filter body displacement is prevented, but the freedom of movement for the speaking valve during breathing is restricted
Solution Approach 1:
The holding means are positioned at specific locations on the filter body (at the holding points) rather than securing the entire filter body rigidly. This localized securing approach prevents displacement while leaving other areas free to move, allowing the membrane and speaking valve to move freely during breathing cycles.
Solution Approach 2:
The holding means are designed to secure the filter body in normal conditions but allow movement when pressure differential occurs during breathing. The membrane can deflect and the speaking valve can move during inhalation and exhalation, providing dynamic operation while maintaining positional stability at rest.
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 solution results in a cost-effective, easy-to-manufacture moisture and heat exchanger with a speech function that can be produced as a disposable product, providing practical benefits for tracheostomy patients by preventing filter body displacement and ensuring efficient air filtration and humidification.
Implementation Method 1
a compressible filter body made of elastic foam for secure retention
Implementation Method 2
the filter body retains moisture, which is then transported into the trachea when you breathe in
Implementation Method 3
the inhaled air is now humidified, heated and filtered at the same time by means of moisture and heat exchangers
Implementation Method 4
The inhaled air is now humidified, heated and filtered at the same time by means of moisture and heat exchangers
Implementation Method 5
the filter body retains moisture, which is then transported into the trachea when you breathe in
Data Source
Figure 1~2
Figure 3~4
AI summary
The device (10) has a cylindrical shape (12) with a sponge element (14) at the bottom pointing towards the body of the patient. The sponge (14) is kept in position by triangular projections (22.1,22.2,22.3,22.4,22.5) protruding from the bottom (26) and the sides (24) of the container (12). A membrane (30) inserted into a lid (28) and held by glue (34) serves as a speech valve. The bottom (26) is designed as a ring with two crosswise arranged narrow bridges in order to facilitate the exchange of moisture and heat.