Pet Urine Indicator Strip for Absorbent Core Monitoring
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Solution Overview
Problem
Conventional absorbent articles for pet animals are cumbersome to use due to the difficulty in recognizing how urine has spread inside the absorbent core along the longitudinal direction, especially since the indicators are arranged at intervals, making it hard to determine the amount of urine absorbed and whether the pet has urinated.
Innovation Solution
A rectangular absorbent article with a detachable attachment system and an indicator that continuously extends in the longitudinal direction, allowing easy visual recognition from the non-body-facing surface, positioned in both absorbent and non-absorbent areas to indicate urine absorption limits and leakage, with a leakage-barrier sheet and specific design features to prevent indicator gathering and enhance visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If indicators are arranged at intervals along the longitudinal direction, then the absorbent article can indicate urine absorption at specific points, but it becomes difficult to recognize how urine has spread inside the absorbent core and requires cumbersome checking processes
Solution Approach 1:
The indicator is divided into multiple sections arranged at intervals along the longitudinal direction, with each section corresponding to a specific region of the absorbent core. This segmentation allows urine spread to be indicated at multiple discrete points, providing comprehensive coverage while maintaining clear visual distinction between different absorption zones.
Solution Approach 2:
The indicator is made visually recognizable from the non-body-facing surface by extending it into the third dimension through raised structures or protrusions. This dimensional extension allows the indicator to be viewed from the outer surface without needing to examine the body-facing surface, eliminating the cumbersome checking process while maintaining accurate urine spread recognition.
2Measurement precision
If the indicator is positioned only in the absorbent area, then it can indicate urine absorption, but it cannot indicate when the absorbent core has reached its upper limit capacity
Solution Approach 1:
The indicator is segmented into two distinct parts: one portion positioned in the absorbent area to monitor urine absorption levels, and another portion positioned in the non-absorbent area to indicate when the absorbent core has reached its upper limit capacity. This segmentation enables dual-function monitoring for both absorption tracking and leakage prevention.
Solution Approach 2:
The indicator portion in the non-absorbent area serves as an intermediary signal that the absorbent core has reached its capacity limit. When urine reaches this outer indicator portion, it provides advance warning before actual leakage occurs, allowing timely intervention to prevent harmful leakage while maintaining accurate absorption monitoring.
3Ease of operation
If the absorbent article is designed to be visually recognizable from the non-body-facing surface, then urine spread can be easily recognized, but the structure becomes more complex
Solution Approach 1:
The indicator is constructed using thin, flexible material that can be easily viewed from the non-body-facing surface. This thin-film structure allows the indicator to maintain visual recognizability while minimizing structural complexity and avoiding the need for bulky or complex mechanical components.
Solution Approach 2:
Instead of making the indicator visible from the body-facing surface as in conventional designs, the indicator is inverted to be visible from the non-body-facing surface. This inversion simplifies the overall structure by allowing the indicator to be integrated into the outer layer, eliminating the need for complex internal viewing mechanisms or transparent materials.
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
Enables easy recognition of urine distribution and absorption within the absorbent core, facilitating timely changes and preventing excessive urine leakage, thus improving user convenience and effectiveness.
Implementation Method 1
an indicator which is colored upon coming into contact with urine and continuously extends in the longitudinal direction
Data Source
AI summary
An absorbent article for male pet animals has a longitudinal direction, a transverse direction and includes: a body-facing surface facing a body of a pet; a non-body-facing surface opposite to the body-facing surface; a first section positioned at a center in the longitudinal direction; second sections adjacent to the first section in the longitudinal direction; an interior layer sheet positioned on side of the body-facing surface; an exterior layer sheet positioned on side of the non-body-facing surface; an absorbent core between the interior and the exterior layer sheets; first and second end portions opposed to each other in the longitudinal direction; an attachment on which the second end portion is detachably attached, the attachment being positioned in the first end portion; and an indicator that is colored upon coming into contact with urine. The indicator continuously extends in the longitudinal direction, and is visually recognizable from the non-body-facing surface.