Otter: A Revolutionary Portable Newborn Warmer for Challenged Healthcare Settings
Revolutionizing Neonatal Care: Warmth and Reliability for Every Newborn
Redefining Medical Device Functionality for Real-World Scenarios
Otter, a state-of-the-art portable warmer for infants, is the result of a collaborative effort between Design that Matters and MTTS. Its primary objective is to prevent and manage hypothermia in newborns within medical facilities that frequently encounter power supply interruptions and resource limitations. This ingenious apparatus, recognized with the prestigious 2026 Seoul Design Award Grand Prize, integrates a heat-conducting bassinet made of polycarbonate, an internal power source, and a user-friendly touch interface. It effectively tackles the practical hurdles of infant care in under-resourced areas, where power failures, inadequate maintenance support, and potential human error can compromise the effectiveness of conventional medical equipment.
Overcoming Challenges in Newborn Warming
Traditional infant incubators and radiant warmers typically necessitate a consistent power supply, routine servicing, and specialized equipment. These requirements often pose significant challenges in remote medical settings where inconsistent electricity and a scarcity of technical assistance hinder the provision of adequate neonatal care. The Otter system overcomes these limitations through a design refined over eight years, incorporating extensive field studies, expert consultations, and product assessments across various regions of Africa and Southeast Asia. The necessity for such a device is particularly pronounced for preterm and underweight infants, who are highly susceptible to heat loss. While Kangaroo Mother Care, involving skin-to-skin contact, is a recognized method for maintaining warmth, disruptions are sometimes unavoidable, such as during examinations, inter-departmental transfers, or temporary separations from the mother. The Otter provides supplementary warmth during these crucial moments, including patient movement within hospital premises.
Integrated Bassinet: A Leap Forward in Hygienic Design
A pivotal design choice by the U.S.-based nonprofit Design that Matters and the Vietnamese medical device manufacturer MTTS involved replacing the removable water or gel mattresses common in many conductive warmers with a single, integrated heat-conducting polycarbonate bassinet. This smooth, continuous surface eliminates fabric, seams, and crevices, significantly simplifying cleaning and disinfection procedures between patients. Furthermore, it prevents direct contact between the infant and the heating element, thereby mitigating the risk of burns associated with conventional systems when a mattress is dislodged or improperly placed. The heating element and temperature sensors are securely housed within a water-resistant casing beneath the bassinet, offering protection against rough handling. This integrated construction reduces reliance on expendable items and replacement parts. Traditional warming mattresses are vulnerable to punctures, seam failures, and degradation, while water-filled systems may require difficult-to-source additives in certain environments. Otter streamlines the product's structure, aiming to reduce maintenance demands throughout its operational lifespan.
Portability and User-Friendly Features
Weighing only 3.6 kg, the Otter can be easily transported between clinical departments without interrupting the warming process. Its integrated battery seamlessly activates when the main power supply is disconnected, ensuring continuous operation during power outages and patient transfers. This battery delivers over two hours of backup at an ambient temperature of 15°C. The touchscreen display provides real-time information on temperature, heating status, and estimated battery life, while alarms notify staff of issues with the sensor, heating element, or power supply. The interface is designed for effortless assessment of the device's status, eliminating the need for extensive technical training. Its physical design follows the same principle, resembling a familiar infant bassinet, with an open structure that allows clinical staff easy access to the baby while making the device less intimidating for parents. This familiar appearance also fosters interaction between mothers and newborns when supplementary warming is required.
Real-World Clinical Evaluation
Since May 2025, five Otter devices have been actively deployed at Kapiri District Hospital in Zambia. An ongoing study is evaluating their performance, staff acceptance, and integration with existing care protocols. These devices have been utilized for low-birthweight newborns, including infants as small as 840 grams, and for maintaining warmth during transfers between different hospital buildings. The study is being conducted under conditions that highlight the practical challenges the design aims to resolve, including documented power interruptions lasting between seven and eleven hours and limited access to biomedical support. Preliminary reports indicate successful use during transfers, though the implementation study remains active, and its findings should be interpreted within this context.