(2020 Apr) A
mountable toilet system for personalized health monitoring via the analysis of excreta
/ Park & al / Department of Radiology, Stanford University School of Medicine
(via Nature biomedical engineering)
(local copy for the records)
Technologies for the longitudinal monitoring of a person’s health are
poorly integrated with clinical workflows, and have rarely produced actionable biometric data
for healthcare providers. Here, we describe easily deployable hardware and software for the
long-term analysis of a user’s excreta through data collection and models of human health.
The ‘smart’ toilet, which is self-contained and operates autonomously by leveraging pressure
and motion sensors, analyses the user’s urine using a standard-of-care colorimetric assay
that traces red–green–blue values from images of urinalysis strips, calculates the flow rate
and volume of urine using computer vision as a uroflowmeter, and classifies stool according
to the Bristol stool form scale using deep learning, with performance that is comparable to
the performance of trained medical personnel.
Each user of the toilet is identified through their
fingerprint and the distinctive features of their anoderm,
and the data are securely stored and analysed in an encrypted cloud server.
The toilet may find uses in the screening, diagnosis and longitudinal monitoring of specific
The fingerprint sensor is located on the flush lever, and well, the camera, you guess it.
Called "analprint" in the paper.
So now, it's no more an hoax!