Ergonomic Fluid Handling Tube Cap With Segmented Sealing
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Solution Overview
Problem
Conventional fluid handling tubes require high insertion and disengagement forces for their caps, leading to user strain and increased risk of repetitive motion injuries, and they often suffer from condensation issues and poor ergonomic design.
Innovation Solution
The design incorporates a cap with longitudinally-oriented grooves and panels that facilitate hoop compression, a concave surface to reduce condensation, and an ergonomic engagement member with curvature and taper for reduced operator strain, along with an annular protrusion and recess for enhanced sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional caps are used for fluid handling tubes, then sealing protection is provided, but high insertion and disengagement forces are required leading to user strain and repetitive motion injuries
Solution Approach 1:
The cap is segmented into multiple functional zones including grooves and panels on the sealing member, allowing distributed stress application during insertion and disengagement. The grooves divide the sealing surface into segments that can deform independently, reducing peak forces required
Solution Approach 2:
The sealing member incorporates dynamic elements including flexible grooves that allow the cap to adapt its sealing mechanism during operation. The grooves enable the sealing surface to deform and recover dynamically, facilitating easier insertion and disengagement while maintaining seal integrity
2Ease of operation
If conventional cap designs are used, then basic sealing is achieved, but condensation issues occur and ergonomic design is poor
Solution Approach 1:
The engagement member features curved and tapered surfaces that conform to natural finger contours, providing ergonomic grip and reducing user strain during cap manipulation. The curved geometry distributes applied forces more evenly across the user's digits
Solution Approach 2:
Different regions of the cap are assigned different functional properties: the engagement member has ergonomic curvature for user interaction, the sealing member has grooves and panels for sealing control, and the distal surface has a concave shape for condensation management. Each zone is optimized for its specific function
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 forces required for cap engagement and disengagement, minimizes condensation, and enhances sealing efficacy, thereby reducing user strain and improving handling efficiency.
Implementation Method 1
the thinner wall thickness of the grooves facilitate hoop compression of the tubular sealing member when the latter is inserted into the interior of the tube body
Implementation Method 2
a substantially smooth exterior surface configured to seal with the interior surface of the tube body
Implementation Method 3
a sealing member having a concave surface at a distal region
Data Source
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AI summary
Provided herein are fluid handling tubes having a cap that includes a sealing member having interior grooves and panels. Also provided herein are fluid handling tubes having a cap that includes (i) a sealing member having a concave surface at a distal region, and (ii) a flat proximal surface. Provided also are fluid handling tubes having a cap that includes an engagement member at an edge of the cap, where the engagement member includes a surface having curvature and a taper. Also provided herein are fluid handling tubes that include a cap comprising a tube sealing member, an anterior engagement member, and one or more channels (e.g., one or more furrows or grooves) between the sealing member and the engagement member that function as a hinge or pivot. Also provided are fluid handling tubes that include (i) a cap having a sealing member that includes an annular protrusion, and (ii) a tube body having an interior surface that includes an annular recess, where the annular recess in the tube body is configured to receive the annular protrusion of the tubular sealing member of the cap.