Proctoscope, another medical device inserted anally
Vaginal dilator, an equivalent device for dilating the vagina
References
^Francisco Vilardell (2006), Digestive Endoscopy in the Second Millennium: From the Lichtleiter to Echoendoscopy, Thieme, pp. 200–201, ISBN 9781588904201
^Jennifer Eve Rehor (2013-04-24). "Sensual, Erotic, and Sexual Behaviors of Women from the "Kink" Community". Archives of Sexual Behavior. 44 (4): 825–836. doi:10.1007/s10508-015-0524-2. PMC 4379392. PMID 25795531.