Outline drawing of a person sitting on a chair, holding a fishing rod with the line extending into a bucket or container.

Oral Cryo

Oral Cryo

The oral cryotherapy device is a 2-part product containing a custom-designed mouthpiece and a water refrigeration unit. The device is used to cool down the mouth during chemotherapy, to prevent the onset of oral mucositis, a painful side effect of chemotherapy.

Diagram of a door handle with labeled parts, including the handle, mounting plate, screws, and connecting mechanism.

This project aimed to create a comfortable oral cooling device to help chemotherapy patients prevent or reduce oral mucositis, a painful side effect of treatment. The goal was to replace the current method of holding ice chips in the mouth during chemotherapy sessions. The initial concept used cold air as the cooling medium, where a fan would blow air over the cold side of a Peltier module and direct it into the mouth through a perforated mouthpiece, with the electronics housed in a neck-pillow-shaped casing. However, the Peltier modules couldn’t achieve the desired temperature of 6°C, prompting a shift toward more efficient cooling methods.

Close-up of a man holding a black thermal imaging or night vision device near his mouth, with part of his face visible.

Design Journey

A 3D model of a metallic mechanical component with cylindrical and curved parts, including two smaller cylinders extending from the side.
3D model of a human mouth with teeth and gums, featuring a green section at the bottom right.
Illustration of a person fishing from a boat with labeled parts, including a fishing rod, reel, line, and bait.
A computer mouse with an ergonomic curved design and a wireless charging pad
Gray robotic vacuum cleaner with a rounded design and a side brush, viewed from the side.
A close-up of a white, oval-shaped robotic device with a small robotic arm attached to the side.
A 3D CAD model of a mechanical part with cylindrical components and a curved outer surface.

The next iteration explored a solid metal conductor cooled by dual Peltier modules in a headphone-style housing, powered by a pocket battery pack. While technically sound, this idea was shelved due to regulatory concerns over its novelty. To meet the company’s request for a more practical solution, a liquid-cooled system was developed, using a mini refrigeration unit to circulate chilled water through a custom-fit mouthpiece. After several design iterations, the final version—3D printed using Formlabs technology—was tested on volunteers, receiving positive feedback for comfort and fit. This individual professional project was completed at Croleon Innovations Pvt. Ltd under the supervision of Chinmay Deodhar, where I led all aspects of design, prototyping, and testing.