Integrated Silicone Valve Push Button for Medical Flushing Device
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Solution Overview
Problem
Existing flushing and aspirating devices for medical purposes have a complex assembly and high manufacturing costs due to multiple individual parts, particularly in the valve mechanism.
Innovation Solution
The valve push button, including sealing sections, is formed as a single piece of elastic silicone material, with a stepped blind bore and guiding projections to simplify assembly and reduce parts, using a reset spring braced against a shoulder for stability and optimal force distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the valve push button is made from stiff plastic with multiple elastic sealing rings, then sealing effectiveness is improved, but the number of parts and assembly complexity increase
Solution Approach 1:
The patent combines the valve push button body and the sealing sections into a single integrated component made of elastomeric material. The sealing sections are formed as integral parts of the push button rather than separate rings that need to be mounted. This merging eliminates the need for multiple separate parts while maintaining effective sealing through the elastomeric material's inherent sealing properties when deformed during actuation.
2Reliability
If the valve push button is made from stiff plastic with multiple elastic sealing rings, then sealing effectiveness is improved, but manufacturing costs increase
Solution Approach 1:
The integrated design of the valve push button with built-in sealing sections eliminates the need for separate manufacturing and assembly processes for multiple components. The single elastomeric component can be manufactured in one process, reducing labor costs, assembly time, and the risk of assembly errors, thereby lowering overall manufacturing costs while maintaining sealing effectiveness.
3Reliability
If the valve push button is made from stiff plastic with multiple elastic sealing rings, then sealing effectiveness is improved, but assembly complexity increases
Solution Approach 1:
By integrating the sealing sections into the valve push button as a single elastomeric component, the assembly process is simplified to installing one piece rather than assembling multiple separate rings onto a rigid body. The elastomeric material's flexibility allows for easier installation and positioning, reducing assembly complexity while maintaining effective sealing.
4Device complexity
If the valve push button is made as a single piece of elastic rubber material, then the number of parts is reduced, but sealing effectiveness may be compromised
Solution Approach 1:
The patent changes the material parameter from stiff plastic to elastomeric material for the valve push button. This material change allows the single component to provide effective sealing through its elastic deformation properties. The elastomeric material can deform to create sealing contact surfaces when the push button is actuated, maintaining sealing effectiveness despite the reduced part count.
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
This design reduces the number of parts, simplifies assembly, lowers manufacturing costs, and maintains effective sealing and operation of the flushing and aspirating channels, ensuring reliable performance during medical procedures.
Implementation Method 1
a reset spring (7) which pushes the valve push button (8) against the force of the reset spring (7)
Implementation Method 2
the valve push button (8) comprises at least one sealing section (10, 11, 12) for controlling the connection of the flushing and aspirating channel (5) to the aspirating channel (3) and/or the flushing channel (4)
Data Source
AI summary
A flushing and aspirating device includes a device housing with an aspirating channel, a flushing channel, a flushing and aspirating channel and a valve chamber in which the channels empty or emerge therefrom, respectively. A manually operable valve push button is movably guided in the valve chamber against the force of a reset spring and which has at least one sealing section for controlling the connection of the flushing and aspirating channel to the aspirating channel and/or the flushing channel. The valve push button including the at least one sealing section is formed as a single piece of an elastic rubber material, such as silicone.