Abstract: Surgical equipment for use with retractors in connection with surgery, comprising an adhesive patch (32) for fastening to a patient's skin surface, a surgical sheet (30) for partly covering a patient's body, and assistance ring (18) form positioning between the lower surface of the sheet and the upper surface of the adhesive patch, having a row of upwardly protruding gripping nipples (20) for sliding through a row of holes in the sheet and through corresponding shaft holes (26) on retractors (22) thereby being fastened to assistance rings.