Phoebe Plant

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University of Nottingham > Engineering > Departments > Mechanical, Materials and Manufacturing Engineering > PDM Exhibitions > 2024 > BEng students > Phoebe Plant

The ThermaFit uses Peltier cooling technology to provide consistent and controlled cold therapy directly to the knee.

I chose to study Product Design and Manufacture because it represents a perfect blend of creativity and engineering. My passion for mathematics and physics has always been strong, but I wanted to venture into a field that also allowed me to explore my creative side. Product Design and Manufacture offered the ideal combination of these interests.

A pivotal moment in my journey was receiving the Arkwright Engineering Scholarship. This experience was incredibly inspiring as it connected me with remarkable individuals who fuelled my passion for engineering. Being awarded this scholarship boosted my confidence and solidified my decision to pursue a degree in engineering. I was fortunate enough to have Bowmer and Kirkland as my sponsor, where I gained valuable work experience.

Throughout my studies, I have developed a range of skills that are crucial for a successful career in Product Design and Manufacture. I have become proficient in computer-aided design (CAD) software, enabling me to create detailed and accurate models of my designs. My experience with rapid prototyping has allowed me to quickly iterate and improve on initial concepts. Additionally, I have honed my skills in materials selection and manufacturing processes, ensuring that my designs are not only innovative but also practical and manufacturable.

I am particularly interested in the sustainability side of Product Design and Manufacture. I believe that as designers, we have a responsibility to create products that are environmentally friendly and sustainable. My goal is to work on projects that prioritize sustainability and contribute to a greener future.

I am very excited to begin my career in the product design industry and am eager to explore all potential career paths. My goal is to work in an environment that challenges me and allows me to continuously learn and grow.

Phoebe Plant, BEng Product Design and Manufacture

ThermaFit Cryotherapy Device

Knee injuries and conditions such as arthritis, ligament tears, and post-surgical recovery require effective and targeted pain management solutions. Traditional cryotherapy methods, like ice packs, often lack precise temperature control, adequate coverage, and user convenience. Our project addresses these issues with a novel cryotherapy device designed specifically for knee therapy, integrating advanced technology and ergonomic design to enhance therapeutic outcomes.

The ThermaFit uses Peltier cooling technology to provide consistent and controlled cold therapy directly to the knee. The cold temperature is generated by cooling modules that clip onto the knee brace and come into contact with hydrogel packs, ensuring efficient and effective cooling. This method offers superior temperature control compared to conventional ice packs, enhancing therapeutic benefits while minimizing risks such as frostbite.

The knee brace itself is constructed from breathable neoprene and nylon materials, providing comfort and durability. This design ensures that the brace fits snugly while allowing for adequate airflow, preventing skin irritation during extended use. Thick Velcro straps deliver dynamic compression, securing the brace in place and helping to reduce swelling and inflammation by applying consistent pressure.

A patient lay on a bed, wearing ThermaFit

A key feature of the ThermaFit cryotherapy device is its control pack, which clips to the user's belt during therapy sessions. This control pack includes a touch screen interface, enabling users to customize their therapy settings easily. The controller houses a printed circuit board that functions as the temperature controller, maintaining temperature accuracy throughout the session. This level of control is critical for optimizing therapeutic outcomes and ensuring user safety.

The device is powered by a rechargeable battery with a life of up to three hours per charge, offering sufficient time for multiple therapy sessions before needing a recharge. This portability allows users to continue their daily activities without being tethered to a power source, enhancing the practicality and convenience of the device. The ThermaFit weighs just 0.95 kg and it’s control modules is almost four times smaller than that of the current market favourite, further validating its convenience and portability.

In summary, this cryotherapy device for knee therapy represents an advancement in rehabilitation and pain management. By combining Peltier cooling technology, breathable neoprene and nylon materials, dynamic compression via Velcro straps, and a user-friendly control pack, it offers a comprehensive and practical solution that addresses the limitations of existing cryotherapy methods. This innovative device not only improves therapeutic outcomes but also enhances the overall patient experience.