The<unk>  is a soft, flexible<unk>  (or curette) popularized by Harvey<unk>  in the early 1970s. The flexibility of the<unk>  was claimed to reduce the risk of perforating the uterus during vacuum aspiration. Both<unk> 's procedure, menstrual extraction, and his<unk>  were embraced by activists Carol Downer and Lorraine Rothman, who modified the technique in 1971 and promoted it. The "self-help" abortion movement envisioned by Downer and Rothman never entered the mainstream in the U.S. before or after Roe v. Wade. Physicians sometimes use a<unk>  in early induced surgical abortion, in treatment of incomplete abortion, and in endometrial biopsy. In 2010, a Sri Lankan physician named Geeth Silva was the first physician to use the<unk>  in the removal of impacted faeces from a patient; this was done in Columbo at the Sri Jayawardenepura General Hospital. Physicians and other health care providers sometimes use a<unk>  in "menstrual regulation" vacuum aspiration procedures in developing countries where abortion is illegal (e.g. Bangladesh).
Karman cannula
Surgical mask
Bonanno catheter
Word catheter
Blood lancet
Bloxsom air lock
Laryngeal mask airway
Dental dam