Wound locks or retractors have a self-locking device. They are often used to create a large operating field. We offer blunt and sharp versions in various sizes according to Adson, Alm, Anderson, Australia, Beckmann, Cone, Darling, Finsen, Gelpi, Loktite, Henley, Jansen, Knighton, Mayo-Adams, Meyerding, Milligan, Miskimon, Mollison, Plester , Righby, Scalp-Contour, Schuhknecht, Snitman, Travers, Tübinger, Walton, Weitlander and Wullstein.