A recent Maynooth University graduate has been named Ireland’s national winner of the James Dyson Award 2025 for an invention that helps people manage lymphoedema without relying on repeated clinical visits.
Zoë O’Sullivan developed Lymphia, a handheld device that allows patients to carry out Manual Lymphatic Drainage (MLD) themselves, guided by a pressure feedback system and a companion mobile app. The project now goes forward to compete in the international stage of the competition.
Lymphoedema is a chronic condition that occurs when the lymphatic system does not function properly, leading to swelling in body tissue. It is often linked to cancer treatment where lymph nodes have been removed or damaged. In Ireland, around 20,000 people are thought to live with the condition, and global estimates suggest up to 250 million cases.
Current treatment options usually involve compression garments or regular professional therapy sessions. Both can be costly and inconvenient, while compression clothing in particular can be uncomfortable to wear for extended periods. Without consistent care, lymphoedema can become painful and can also affect body image and self-esteem.
Lymphia is designed to make MLD accessible at home. The device uses 10mm steel balls to simulate professional massage techniques, providing targeted stimulation of lymphatic vessels. It features a traffic light-style indicator that lets users know whether the pressure they’re applying is correct, too low, or too high.
A companion app gives step-by-step guidance in recognised MLD methods, aiming to correct common misunderstandings about the therapy while helping users build confidence in performing it safely. Unlike many medical devices, O’Sullivan wanted Lymphia to look and feel approachable. Its compact and consumer-friendly design is intended to encourage daily use without drawing unwanted attention.
O’Sullivan’s motivation for the project came from both a close friend and her own recovery experience. Her friend lives with lymphoedema in their legs and depends on MLD for relief, but often found current solutions frustrating.
After undergoing breast reduction surgery herself, O’Sullivan also dealt with complications including fluid retention and scar-related issues, where MLD became crucial for her recovery. These experiences gave her a clear view of the limitations of existing treatments and informed her design choices for Lymphia.
Speaking after the win, she said the recognition was a boost: “Knowing that Lymphia has the potential to improve so many lives and help reduce the stigma around lymphoedema means so much to me.”
She plans to put the prize money towards securing a patent, with the longer-term aim of seeing Lymphia recommended by clinicians and supported through healthcare systems.
Two other Irish designs were named as runners up in this year’s award. Both focus on improving access and inclusivity in areas where user experience is often overlooked.
Elithiya, developed by Isabelle Bentley Curran from the University of Limerick, rethinks the process of IUD insertion. Although intrauterine devices are highly effective contraceptives, many people avoid them due to painful or traumatic insertion experiences. Elithiya uses a balloon-based dilation mechanism with controlled inflation, making the process more gradual than traditional rigid tools. The device also links to a supportive app that provides guidance and reassurance, aiming to reduce the anxiety surrounding the procedure.
The second runner up, Gotcha, was created by Kate Brown of Maynooth University. It addresses accessibility issues in the beauty industry by helping people with limited hand or arm mobility use cosmetics more easily. Gotcha combines a suction cup base with a soft clamp that holds makeup products like lipsticks in place. Users can then open or apply them with one hand, offering greater independence for people who may otherwise struggle with standard packaging.
Lymphia now moves into the international phase of the James Dyson Award. The global shortlist of 20 designs will be revealed on 15 October, followed by the announcement of the overall winners on 5 November 2025.
