Urine non-contact sensor that evaluates multiple urination using capacitance change to inform when to replace inner...

Area of Science:

• Biomedical Engineering
• Geriatric Care Technology
• Sensor Technology

Background:

• Elderly individuals who are incontinent or bedridden often rely on disposable adult diapers.
• Current methods for determining diaper replacement are often based on caregiver estimation, lacking quantitative accuracy.

Purpose of the Study:

• To develop and validate a novel diaper sensor system for quantitative urine volume assessment.
• To enable timely and informed decisions regarding diaper replacement for improved hygiene and dignity.

Main Methods:

• A capacitance-based sensor system was developed to measure urine absorption in diapers.
• Experiments were conducted using a saline-filled phantom torso and a human volunteer to simulate urination patterns and absorption levels.
• Diapers from various manufacturers and different approximate numbers of absorption (ANA) were tested.

Main Results:

• The sensor system accurately estimated urine absorption volume, demonstrating consistency across single and multiple urination patterns.
• The system's performance was validated to be independent of the diaper manufacturer.
• Quantitative data on urine absorption was successfully obtained.

Conclusions:

• The developed diaper sensor system is a versatile and reliable tool for monitoring urine volume in disposable diapers.
• Practical implementation of this system can provide caregivers with crucial quantitative information for timely diaper changes.
• This technology has the potential to enhance the quality of care for incontinent and bedridden individuals.