The present invention relates to a ring (1) for implantation in patients receiving stoma having (i) an inner ring (2) suitable for fitting an abdominal wall on its outer circumference having an opening (3) suitable for an abdominal organ to pass through the ring to the exterior side (5) and (ii) a lip seal (4) extending over the interior side (5) of the inner ring (2) to seal the stoma opening for use in abdominal surgery. In addition, the present invention is directed to a method of treatment, comprising the surgical introduction of a ring (1) of the invention into the abdominal wall of a mammal in need of abdominal, preferably stoma surgery.
