Retractor

(re-trak' -tor). I. An instrument for withdrawing the lips or edges of a wound, or for pulling the soft parts away from the place of incision in amputations. 2. A muscle that retracts the organ into which it is inserted. R. anguli or is. See Buccinator Muscle, in Muscles, Table of. R. bulb i, the retractor muscle of the eyeball present in some animals. R.. Emmet's Perineal, a self-retaining vaginal speculum. R., Eyelid, a metallic instru ment used to hold the eyelids away from the eyeball during an examination or operation. R., Minor's Trachea, an instrument used as a substitute for tracheotomy tubes, consisting in a hollow rod, slightly curved. and holding a bent wire retractor by means of a at each end. R. oculi. See R. bulb i. R., Pilcher's, a small pair of blunt hooks on n.-ingle delicate An instrument used in tracheotomy. R. urethra or urethral is. See R. uteri: (I) the recto-uterini of both sides considered of Luschka, a uterine fold. R., Rose's, an instrument used to hold open a tracheotomy-wound; sists in a piece of steel wire bent to form a pair o spring hooks. R., Wells's, two wires bent into and tied in place about the neck by bands. It advised for the purpose of keeping the wound open after tracheotomy.