CONFIDENTIALITY NOTE
This project illustrates the complete product development process, including system architecture, design evolution, and prototyping.
Certain engineering details, specifications, and implementation aspects have been intentionally abstracted or withheld due to intellectual property, regulatory, and confidentiality considerations.
Measured outcomes
66.5%
Increase in diagnosis speed through workflow automation and operator interaction design.
32%
Reduction in diagnostic error via structured usability research and iterative testing.
RPN ≤24
Maximum risk priority number across all subsystems, all rated Low–Moderate out of 125.
A 52-day delay no one designed away...
India carries 26% of the global tuberculosis burden. Yet the diagnostic pathway is entirely built around centralised labs and specialised equipment, infrastructure that barely reaches 10% of remote regions where the disease is most prevalent.
From symptom onset to treatment initiation takes, on average, 37–52 days. Every day of that delay is continued transmission. The bottleneck is not clinical — it is architectural. The diagnostic system was never designed for the people who need it most.
TB-Dx was designed to collapse that gap, a portable, automated staining device that any ASHA worker can carry to a village, operate without lab training, and generate a reliable result in under 30 minutes.
Typical TB detection timeline
Day 0 ............................................... Symptom onset
+15–20d .......................................... First healthcare visit
+10–15d ........................................... Referral for testing
+7–10d ............................................. Laboratory diagnosis
+5–7d .............................................. Treatment begins
(up to 52 days total)
