Tampon Applicator Barrel with Flexible Petals and Variable Friction Grip
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Solution Overview
Problem
Existing tampon applicators lack comfort and secure handling, leading to user dissatisfaction due to their rigid structure and contact with sensitive body parts.
Innovation Solution
A tampon applicator design featuring a barrel with flexible petals and a guide channel, along with a grip region of varying friction coefficient, to enhance comfort and secure handling by allowing easier insertion and removal while reducing pinching and providing a soft feel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the barrel is made of rigid plastic or cardboard, then the applicator provides structural strength, but it causes discomfort and pinching when contacting sensitive body parts
Solution Approach 1:
The barrel is segmented into multiple flexible petals instead of being a single rigid structure. Each petal can independently deform to accommodate body contours, reducing pinching and discomfort while maintaining overall structural integrity through the petal assembly.
Solution Approach 2:
The barrel is constructed from flexible petal elements that can bend and conform to the vaginal canal walls. This flexibility allows the applicator to adapt to body shapes without causing discomfort, while the petal structure maintains sufficient strength for tampon delivery.
2Ease of operation
If the barrel surface is smooth, then the applicator can slide easily into and out of the vaginal canal, but the user cannot securely grip the barrel for insertion
Solution Approach 1:
Different regions of the applicator have different surface properties. The grip region has increased friction for secure handling, while the tip and insertion regions remain smooth to facilitate easy passage through the vaginal canal without resistance.
Solution Approach 2:
The applicator design allows different parts to have different friction characteristics dynamically suited to their function. The grip region provides high friction when needed for handling, while the insertion region provides low friction when contacting body tissues.
3Object-affected harmful factors
If the petals are made long to provide soft feel and comfort, then user comfort increases, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The petal length-to-barrel diameter ratio is optimized within a specific range (0.5 to 2.0) to achieve the desired balance between comfort and manufacturability. This parameter optimization ensures petals are long enough to provide soft contact but not so long as to create excessive complexity.
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 design provides a softer, more flexible feel and secure grip, facilitating comfortable insertion and removal of the tampon, reducing discomfort and improving user experience.
Implementation Method 1
The guide channel has a cross-sectional dimension sized for a close fit relationship of the plunger in the guide channel
Implementation Method 2
The outer surface of the barrel at the grip region has at least one of a different color and a different coefficient of friction than the central region of the barrel
Data Source
AI summary
In a tampon applicator, an elongated barrel has an interior chamber for housing a tampon therein, a grip region generally adjacent an outer end of the barrel, a tip region generally adjacent an inner end of the barrel, and a central region extending longitudinally between the grip region and the tip region. A plunger extends into the barrel at the outer end thereof and is moveable relative to the barrel to expel the tampon from the barrel at its inner end. The outer surface of the barrel at the grip region has a different coefficient of friction than at the central region of the barrel. In other embodiments the coefficient of friction of the barrel outer surface at the central region is different from the coefficient of friction at the tip region.