Semipermanent Menstrual Pad With Detachable Lid And Leak Prevention

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Solution Overview

Problem

Existing menstrual products, such as tampons and silicone menstrual cups, face issues like toxicity, high manufacturing costs, and difficulties in removal, leading to discomfort and hygiene challenges.

Innovation Solution

A semipermanent menstrual pad with a genital area cover and a detachable lid part, featuring a storage space for menstrual blood and a double leak prevention projection structure to prevent leakage, made from medical silicone for hygiene and durability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If tampons are used to improve wearability and absorptiveness, then the convenience and absorption performance are improved, but the risk of toxicity and shock syndrome increases

Engineering Contradiction:

ImprovewearabilityVSAvoidtoxicity

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The menstrual pad is divided into multiple functional layers including a first receiving layer, second receiving layer, and guiding layer. This segmentation allows each layer to perform specific functions (absorption, distribution, leakage prevention) while using safe materials, resolving the contradiction between convenience and toxicity risk.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The invention uses disposable menstrual pads made from safe, biocompatible materials instead of reusable tampons. The pads are designed for single use, eliminating the risk of toxicity accumulation while maintaining high absorption performance and wearability.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

2Ease of manufacture

If menstrual cups are used to reduce manufacturing costs and improve reusability, then the cost-effectiveness and resilience are improved, but the difficulty of removal and hygiene management increases

Engineering Contradiction:

Improvemanufacturing costVSAvoidremoval difficulty

Core Design Contradiction:

Ease of manufactureVSEase of operation

Solution Approach 1:

The menstrual pad is segmented into removable components including a first receiving layer, second receiving layer, and guiding layer. This allows easy removal and disposal after use, eliminating the difficulty of removing menstrual cups while maintaining cost-effectiveness through optimized material usage.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The invention employs disposable pads that can be easily removed and discarded, avoiding the hygiene management issues and removal difficulties associated with reusable menstrual cups. The disposable nature ensures safety while keeping manufacturing costs low.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

3Object-affected harmful factors

If menstrual pads are used to prevent leakage and maintain hygiene, then the leakage prevention and hygiene are improved, but the inconvenience of wearing and motion-induced leakage increases

Engineering Contradiction:

Improveleakage preventionVSAvoidwearing convenience

Core Design Contradiction:

Object-affected harmful factorsVSEase of operation

Solution Approach 1:

Different regions of the menstrual pad have specialized structures: the first receiving layer for initial absorption, the second receiving layer for additional capacity, and the guiding layer for directing flow. This local quality optimization ensures leakage prevention while maintaining comfort and ease of wear.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The menstrual pad features a flexible, dynamic structure that adapts to body movements. The multiple layers and guiding structures work together to maintain leakage prevention during various motions, resolving the contradiction between leakage protection and wearing convenience.

Inventive Principle:

Principle #15Dynamics

4Loss of substance

If reusable menstrual pads are used to reduce waste and improve sustainability, then the environmental impact is reduced, but the hygiene management and post-treatment processes increase

Engineering Contradiction:

Improvewaste reductionVSAvoidhygiene management

Core Design Contradiction:

Loss of substanceVSEase of operation

Solution Approach 1:

The menstrual pad is segmented into removable layers that can be easily separated for disposal. This segmentation allows users to dispose of only the contaminated outer layers while potentially reusing inner components, reducing waste while minimizing hygiene management complexity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The invention provides an intermediate solution between fully disposable and fully reusable pads. The segmented structure allows partial disposal and partial reuse, reducing overall waste while keeping hygiene management simpler than fully reusable options.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Data Source

PatentUS12303363B2Semipermanent menstrual pad

Publication Date: 2025.05.20 LEE EUN JU

AI summary

A semipermanent menstrual pad may include: a genital area cover configured to cover a female genital area and having a storage space recessed at a center of the genital area cover to store menstrual blood, and a lid part configured to cover an upper portion of the storage space to prevent the menstrual blood introduced into the storage space from leaking to the outside, in which the lid part is coupled to or separated from the genital area cover in an attachable/detachable manner and includes a through-hole through which the menstrual blood is introduced, and a first menstrual blood leak prevention projection formed along a boundary line of the through-hole and provided at a position spaced apart from the through-hole by a preset distance to primarily prevent the leak of the menstrual blood.