Maynooth University graduate Zoë O’Sullivan lands James Dyson Award for Lymphia

The winning design, created by Maynooth University graduate Zoë O’Sullivan, aims to make Manual Lymphatic Drainage (MLD) available at home—removing the need for frequent physiotherapy visits or expensive compression devices.

Lymphatic drainage therapy is vital for people living with lipedema and lymphoedema.

Lymphoedema occurs when lymph nodes are damaged or removed, leading to persistent swelling, often in the limbs.

Up to 30% of breast cancer survivors experience this condition, though it can also affect those treated for prostate, ovarian, and melanoma cancers.

Lipedema, meanwhile, is a painful swelling caused by abnormal fat cell accumulation, impacting as many as 12% of women worldwide.

Despite their prevalence, both conditions remain under-recognized.

It is estimated that as many as 250 million people globally may be living with lymphoedema, underscoring the need for effective, sustainable care.

Current solutions often involve compression garments or professional therapy, which can be costly, inconvenient, and sometimes uncomfortable.

Lymphia offers an alternative.

Designed as a compact, home-use device, it allows patients to perform MLD independently and with confidence.

Using 10mm steel balls to precisely stimulate lymphatic vessels, Lymphia combines physical therapy with smart design.

A built-in pressure feedback system, supported by a simple traffic light indicator, ensures users apply the correct pressure. Complementing this, a mobile app delivers step-by-step instruction, addressing common misinformation and supporting safe use.

Far from resembling a medical device, Lymphia’s sleek design encourages daily use, reducing stigma and empowering users to take charge of their treatment.

The invention was inspired by O’Sullivan’s personal and professional experiences.

A close friend’s struggle with lymphoedema revealed the emotional and physical toll of the condition.

Later, after her own surgery led to fluid retention, O’Sullivan experienced first-hand the importance of MLD in recovery.

Speaking about her award, she said: “I’m thrilled to have won the National James Dyson Award with Lymphia.

“It’s amazing to see my work recognized and celebrated in this way. Knowing that Lymphia has the potential to improve so many lives and help reduce the stigma around Lymphoedema means so much to me.”

 O’Sullivan plans to use the award funding to pursue a patent and move Lymphia closer to clinical adoption.

The invention now advances to the international stage of the James Dyson Award, with the global shortlist due on October 15th and winners announced November 5th.

* This article was originally published on BusinessPlus.ie.