Maynooth graduate Zoë O’Sullivan makes James Dyson Award shortlist
Maynooth graduate Zoë O’Sullivan has made the shortlist of 20 entries for the 2025 James Dyson Award for her device Lymphia. The device addresses a critical gap in chronic health care: the lack of accessible, affordable solutions for lymphatic drainage therapy.
Lymphatic conditions such as lymphoedema and lipedema affect millions globally – yet awareness and treatment options remain limited. Lymphoedema, often triggered by cancer treatments like lymph node removal, causes persistent swelling and affects up to 30% of breast cancer survivors. Lipedema, by contrast, is characterised by a painful swelling caused by an abnormal accumulation of fat cells and is believed to impact up to 12% of women worldwide, regardless of background. Despite their prevalence, both conditions are under-recognised and frequently misdiagnosed.
Current solutions often rely on compression devices or professional massages with a physiotherapist. Both can be costly, time-consuming, and typically require attending appointments outside the home. Without regular treatment, these conditions can negatively impact body image and mental health, leaving people feeling trapped by limited options.
Lymphia is a home-use device designed to empower patients to perform Manual Lymphatic Drainage (MLD) independently and with confidence. The device uses 10mm steel balls, carefully sized to be perceptible on skin while small enough to precisely stimulate individual lymphatic vessels, enhancing the comfort and effectiveness of the massage.
Lymphia also features an integrated pressure feedback system that guides users to apply the optimal level of force. A clear traffic light colour indicator shows whether the pressure is too low, too high, or just right. To further support users, the accompanying mobile application provides step-by-step instruction in professional MLD techniques, helping to ensure correct use and address the widespread misinformation surrounding MLD practice.
O’Sullivan said: “I am so thrilled to have been selected as part of the Top 20 for this year’s James Dyson Award – words really cannot do it justice. I’m incredibly grateful and delighted by the recognition of my work, and the awareness this can bring for lymphoedema and its treatment.”
The global winners will be selected by Sir James Dyson and announced on the 5 November. The winning inventions will receive €36,000 to support their further development and commercialisation.
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