A tissue repair implant (1) comprises a lower layer of peritoneal membrane (2), an upper layer of peritoneal membrane (3), and a support member (4) to reinforce the two layers of peritoneal membrane (2, 3). The support member (4) is located between the lower layer of peritoneal membrane (2) and the upper layer of peritoneal membrane (3). The support member (4) is encapsulated between the two layers of peritoneal membrane (2, 3) to attach the two layers of peritoneal membrane (2, 3) to the support member (4). The support member (4) comprises a non-biological synthetic material mesh with a plurality of openings extending therethrough. Either of the layers of peritoneal membrane (2, 3) and/or the support member (4) may be attached to an interior wall of an abdominal tissue. Either of the layers of peritoneal membrane (2, 3) may be remodelled by in-growth of tissue.
