Renephra are developing an innovative medical device to treat patients of chronic oedema and fluid overload. Heart failure patients with chronic oedema and fluid overload can be very challenging to treat and Renephra's technology has the potential to be much more convenient and enabling for patients as well as offer very significant savings for healthcare providers by enabling treatment in the community and home setting. Renephra's solution is to remove excess fluid through the skin using disposable microneedle patches.