Anesthesia fetishism

From Kinktionary @ Social Kink

Anesthesia fetishism: sexual arousal by the idea of general anesthesia, and the equipment and paraphernalia related to its use. A common fetishised object is the masks through which gaseous anesthetic agents are administered. Older-style anesthesia masks of black rubber - nicknamed Black Beauty - are particularly revered. People with this fetish may have a desire to administer anesthesia to someone, to be anesthetized themselves, to watch someone else being anesthetized, or any combination of these.