Otter Warmer Keeps Newborns Warm During Hospital Blackouts
Nonprofit Design that Matters and manufacturer MTTS build a seamless bassinet for clinics with unstable power.
By Giovanni Sapere
2 min readHuman-Edited, AI-Assisted
A portable newborn warmer built without soft mattresses or seams is helping rural clinics care for infants when electricity cuts out. Developed by United States nonprofit Design that Matters and Vietnamese medical device manufacturer MTTS, the medical device known as Otter treated over 800 newborns across three countries by January 2026.
A solid bassinet instead of gel pads
Standard infant warmers often rely on removable water or gel mattresses to transfer heat to vulnerable babies. In low-resource clinics, those mattresses tear, leak, or collect bacteria in fabric seams. The Otter invention takes a different approach by using an integrated, heat-conducting polycarbonate bassinet, according to reporting by Yanko Design. Created by an inventor focused on durability, the rigid, smooth surface eliminates seams and gaps, which allows hospital staff to clean and disinfect the basin quickly between patients without replacing damaged parts.
Automatic backup power for unstable grids
Clinics in rural areas frequently face blackouts that shut down life support equipment without warning. To bridge these gaps, MTTS integrated a battery system that activates automatically the moment alternating current supply stops, as detailed by Yanko Design. The system weighs approximately 11 pounds with batteries installed, keeping the warmer portable. A rim-mounted display shows temperature readings and battery reserves, alongside automated alarms that alert nurses to heater, sensor, or electrical failures.
Clinical support in Zambia, Vietnam and the Philippines
The healthcare innovation is designed to complement existing neonatal practices rather than replace clinical care with an overly complex medical device. In Zambia, non-profit organisation Design that Matters documented staff using Otter to provide supplemental warmth when mothers take essential breaks from skin-to-skin kangaroo mother care, according to Yanko Design. By January 2026, teams had deployed the unit across Vietnam, Zambia, and the Philippines, treating more than 800 newborns. As highlighted by the patent magazine, the practical hardware earned the 2026 Seoul Design Award Grand Prize, showing how eliminating weak mechanical points can make critical medical technology reliable in challenging conditions.
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