Sanitary Pad With Raised Absorbent Zones For Leakage Control

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Solution Overview

Problem

Conventional sanitary pads inadequately protect against menstrual leakage, particularly in hard-to-reach areas between the buttocks and anus, leading to discomfort, irritation, and accidents due to insufficient absorbency and design limitations.

Innovation Solution

A sanitary pad with a tapered shape and two raised absorbent layers, featuring extended semi-square edges and a narrow tear-drop shape rear absorbent to act as a dam, combined with removable adhesive strips and padded flaps for secure placement, to effectively absorb and redirect menstrual flow away from the skin.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional flat sanitary pads with center raise are used, then the pad structure is simple and easy to manufacture, but the pad cannot adequately protect hard-to-reach areas between buttocks and anus, leading to leakage and discomfort

Engineering Contradiction:
Improveleakage protectionVSAvoidpad structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The sanitary pad is divided into multiple functional zones: a rear absorbent portion positioned between buttocks and anus, a front absorbent portion positioned at the front, and a center raise portion. This segmentation allows each zone to address specific leakage pathways, with the rear portion specifically targeting the hard-to-reach area that conventional pads miss.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different portions of the pad have different absorbent qualities and configurations. The rear absorbent portion is specifically positioned and shaped to address leakage between buttocks and anus, while the front portion addresses anterior leakage. This local differentiation of absorbent properties ensures targeted protection where needed most.

Inventive Principle:
Principle #3Local quality

2Reliability

If the pad uses extended semi-square edges and raised absorbent layers to protect hard-to-reach areas, then leakage protection is improved, but the pad design becomes more complex

Engineering Contradiction:
Improveleakage protectionVSAvoidpad design
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The pad incorporates raised absorbent layers that add vertical dimension to the otherwise flat pad structure. The rear absorbent portion rises to contact the perineum area, creating a three-dimensional barrier against leakage. This dimensional addition allows the pad to reach into anatomical spaces that a purely two-dimensional flat pad cannot access.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Reliability

If the rear absorbent portion is positioned to protect between buttocks and anus, then protection in hard-to-reach areas is improved, but the pad may shift or move during activity

Engineering Contradiction:
Improveprotection in hard-to-reach areasVSAvoidpad stability
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The adhesive strip and padded flaps are integrated with the multi-zone absorbent structure. The adhesive strip runs along the rear portion to anchor the pad, while the padded flaps with adhesive secure the front and center portions. This merging of securing mechanisms with the functional absorbent zones ensures the entire pad, including the rear protective portion, remains stable during activity.

Inventive Principle:
Principle #5Merging (Combining)

4Ease of manufacture

If conventional pads are used, then manufacturing is simple, but leakage flows off the pad onto underwear and clothing causing embarrassment

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidleakage onto clothing
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The rear absorbent portion is positioned in advance to intercept leakage before it can flow backward between the buttocks and anus. The extended rear edges and raised rear absorbent layer create a preliminary barrier that captures fluid at its source, preventing it from reaching the underwear and clothing. This proactive positioning stops leakage before it becomes a problem.

Inventive Principle:
Principle #10Preliminary action

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 provides enhanced protection and comfort by preventing leakage from reaching the skin, reducing irritation and accidents, and ensuring the wearer remains dry and secure during various activities, including sports and sleeping.

Implementation Method 1

The removable adhesive strip is one strip that is shaped like the pad. The glue/sticky material will hold the sanitary embodiment sturdy and in place without it moving out of place from normal to heavy day to day activity.

Methodology Applied
Scientific EffectAdhesive: Adhesive

Implementation Method 2

a narrow, elongated, raise absorbent material surrounded by stitch barriers located rear on top of sanitary pad. Rear absorbent will fit up against the perineum towards the buttock to absorb and trap mild to heavy menstrual leakage flowing between the buttocks and towards anal region.

Methodology Applied
Scientific EffectAbsorption: Absorption (physical)

Data Source

PatentUS8870842B2Sanitary pad
Publication Date: 2014.10.28 HILL GRETCHEL LINELIA
  • US8870842B2 patent drawing
  • US8870842B2 patent drawing
  • US8870842B2 patent drawing

AI summary

The invention is carried out by forming three embodiment shaped, target zone, externally worn feminine protection sanitary pad, targeting trouble zone leakage between the buttocks, towards the anal and front pubic area. The preferred embodiment absorbent article includes a rear flexible, peak and comfortable raised component liquid absorbent and a front semi-square raise absorbent, raise absorbency will blend from standard center raise absorbent of the pad. Rear peak raise absorbent will fit up against the perineum. The front raise semi-square absorbent is design to cover external area of the pubic mons and clitoris. Alternate preferred embodiment is rear peak raise absorbent, with standard flat front covering the pubic mons and the clitoris exterior. Another alternate embodiment is front semi-square raise absorbent, with standard flat rear. Preferred and alternate embodiments front and rear edges are extended semi-square shape to cover beyond the front and rear of the panty crotch and slightly raise absorbent fold under flaps for center crotch.