bistoury /bis·tou·ry/ (bis´tdbobr-re) a long, narrow, straight or curved surgical knife. 
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Bistoury.
bis·tou·ry (b s t -r )n. A long, narrow-bladed knife used for opening abscesses or for slitting sinuses and fistulas. |
bistoury
a long, narrow, straight or curved surgical knife used in opening sinuses and fistulae, incising abscesses, etc.
Udall's teat bistoury
designed for opening stenosed teat sphincters. The point is blunt and rounded, the cutting edge is inset from the true edge of the blade and is about 0.5 in long. The bistoury is inserted into the canal and withdrawn sharply so as to incise the scar tissue vertically. Three or four incisions are made in this way.
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