Ball Valve Straw Insert for Fluid Retention and Aspiration Control
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Solution Overview
Problem
Existing drinking devices with liquid delivery tubes, such as straws, are difficult for individuals with diminished physical or mental capacity to use effectively, often leading to fluid entering the lungs and requiring excessive effort or dexterity, and existing solutions are complex, not compatible with standard straws, or prone to siphoning and drooling.
Innovation Solution
A ball valve apparatus with a valve chamber and tapered tubular portion that prevents fluid backflow, allows adjustable flow restriction, and is designed for easy manufacturing, enabling users to drink with reduced effort and risk of aspiration by retaining fluid in the tube and accommodating varying suction capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a standard straw is used for drinking, then convenience and self-sufficiency are improved, but fluid can easily enter the lungs and air ingestion occurs
Solution Approach 1:
A ball valve apparatus is introduced as an intermediary device between the liquid container and the user's mouth. The ball valve selectively opens during suction to allow fluid flow while closing during exhalation or when not in use, preventing aspiration and air ingestion without requiring the user to actively control the straw
Solution Approach 2:
The harmful elements (air and uncontrolled fluid flow) are extracted from the drinking system by using the ball valve to allow only controlled fluid passage during active suction, while automatically blocking air and preventing fluid backflow when suction is not applied
2Ease of operation
If a check valve device is used to prevent air ingestion, then the burden of maintaining suction is reduced, but the device becomes complex and incompatible with standard straws
Solution Approach 1:
The ball valve is designed to automatically respond to pressure differential changes caused by the user's natural suction and exhalation actions. The ball rises to open the valve during suction and falls to close it during exhalation, making the system self-regulating without requiring external control mechanisms or complex components
Solution Approach 2:
The valve operation is based on changes in pressure parameters within the straw. During suction, negative pressure lifts the ball to open flow; during exhalation or idle states, positive or atmospheric pressure closes the valve. This parameter-based control simplifies the mechanical structure while achieving automatic valve operation
3Reliability
If a one-way valve is placed in the tube to prevent backflow, then fluid retention is improved, but the device requires hand orientation and may siphon or drool fluid
Solution Approach 1:
The ball valve automatically orients itself based on fluid flow direction and pressure differential. During suction, the ball rises to the valve seat regardless of the apparatus orientation, ensuring reliable sealing. The design eliminates the need for manual orientation by making the valve function independent of the apparatus's angular position
Solution Approach 2:
The ball valve is designed with dynamic movement capability along the vertical axis of the valve chamber. The ball can freely move up and down in response to pressure changes, maintaining sealing contact with the valve seat during suction while allowing fluid passage. This dynamic positioning ensures reliable operation in various orientations without manual intervention
4Object-affected harmful factors
If flow restriction is applied to prevent high velocity fluid flow, then aspiration risk is reduced, but user control and drinking efficiency are limited
Solution Approach 1:
The ball valve provides dynamic flow control that adapts to the user's suction strength. During light suction, the ball partially opens to allow controlled flow, reducing aspiration risk. During stronger suction, the ball fully opens to maximize flow rate and drinking efficiency. This dynamic adjustment optimizes both safety and productivity based on real-time user needs
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 ball valve apparatus simplifies drinking by reducing effort and risk of aspiration, preventing fluid backflow and splashing, while allowing for adjustable flow to suit different users and fluid viscosities, enhancing safety and convenience for those with physical or mental challenges.
Implementation Method 1
when fluid is not being drawn through the drinking tube, the ball will sit in the inlet valve seat and prevent fluid from flowing out of the tube back through the inlet of the valve chamber
Implementation Method 2
Ribs extending inwardly at the outlet end of the valve chamber prevent the ball from closing the outlet end of the valve chamber and blocking fluid movement
Implementation Method 3
an upper tapered tubular portion that allows the apparatus to be placed into a tube, such as a drinking straw and also provides for a restricted fluid flow therethrough for the safety of a user
Data Source
AI summary
An apparatus that can be inserted into the bottom end of liquid delivery tube for retaining fluid in the tube to aid in drinking, utilizing a ball valve that for the most part only allows unidirectional flow of fluid through the valve and into the tube to prevent the level of fluid in the tube from significantly dropping and also creates a fluid free space at the end of the tube to prevent spillage.