US Patent 6972026 Surgical access device

Surgical device (1) is for use in minimally invasive surgery using an inflated body cavity (2) accessible to a surgeon through an access port defined by a sleeve (4) passing through an incision in a patient's abdominal wall (3). The device is held in position by a distal ring (5) and a proximal ring (6). An incision engaging bladder (10) provides a first seal for engaging and retracting the incision when inflated. A second seal is provided by a self engaging bladder (12) for sealing the sleeve (4).