self-retaining abdominal retractor area unit wont to hold AN incision or wound open whereas a doctor works. The surgical instrument may even be wont to hold tissues or organs out of the manner throughout a surgery. self-retaining abdominal retractor permits hands-free operation throughout a surgery. Retractors with apposable blades that use a screw, ratchet or clamp to carry the tissue apart by themselves area unit referred to as self-retaining abdominal retractor.