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bougie (boo-zhe´)   a slender, flexible or rigid, hollow or solid, cylindrical instrument for introduction into the urethra or other tubular organ, usually for calibrating or dilating constricted areas.
Bougies: (A), Otis bougie à boule; (B), olive-tipped bougie; (C), filiform bougie.

Bougies: (A), Otis bougie à boule; (B), olive-tipped bougie; (C), filiform bougie.
 

filiform bougie  a bougie of very slender caliber, generally used for exploration of small areas, such as sinus tracts, where false tracts could be easily created. The entering end is of smaller diameter, and the following end is threaded to allow for attachment of a following bougie.

following bougie  a flexible, tapered bougie attachable to a filiform bougie and allowing progressive dilatation without creation of false tracts.

Hurst bougies  a series of mercury-filled tubes of progressive diameter used for dilatation of the cardioesophageal region.

Maloney bougies  a series of mercury-filled tubes of progressive diameter, having cone-shaped tips.





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