MUMBAI, India, Feb. 13 -- Intellectual Property India has published a patent application (202541124430 A) filed by Saveetha Institute Of Medical And Technical Sciences, Chennai, Tamil Nadu, on Dec. 10, 2025, for 'wearable thermal patch device for continuous monitoring of occupational heat exposure among industrial workers.'
Inventor(s) include Dr. Mithul Prana V; Dr. S. Suma; and Deepak Nallaswamy Veeraiyan.
The application for the patent was published on Feb. 13, under issue no. 07/2026.
According to the abstract released by the Intellectual Property India: "Occupational heat stress is a major health hazard in industrial environments, often leading to dehydration, reduced productivity, heat exhaustion, or heat stroke. Traditional monitoring methods rely on environmental indices or self-reported symptoms, which fail to provide realtime and personalized data. To address this gap, a wearable thermal patch device has been developed for continuous monitoring of workers' heat exposure. Methods: The device consists of a lightweight, skin-adherable thennal patch embedded with miniature temperature and humidity sensors. It continuously records skin temperature, ambient conditions, and sweat dynamics. Data are transmitted wirelessly to a central monitoring -----c:-. system-through. _8 I uetooth/IoT_connectiYity ... Prototyp_e. _testing_was cpnductec!. am_ong __ * 0 industrial workers under controlled and field conditions, with comparisons made agamst standard thermal monitoring equipment. Results: The wearable thermal patch demonstrated high accuracy in tracking fluctuations in skin temperature (0.2 C) and relative humidity (2%). The device provided continuous data streams over an 8-hour work shift without significant signal dropouts. Early warning alerts for heat stress risk were successfully generated based on threshold values of skin temperature and humidity, enabling timely preventive measures. User feedback indicated comfort, minimal interference with work tasks, and high acceptance for long-term use. Discussion: The results suggest that the wearable thermal patch can overcome limitations of conventional heat exposure assessments by providing individualized, continuous, and real-time monitoring. Integration with occupational safety protocols may significantly reduce the incidence of heatrelated illness, especially in industries with high thermal load. Conclusion: The proposed wearable thermal patch is a novel, non-invasive, and effective tool for continuo. us monitoring of occupational heat exposure. Its deplo.y ment has the potential to enhance worker safety, improve productivity, and contribute to preventive occupational health strategies."
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