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trocar

 
Dictionary: tro·car   (trō'kär') pronunciation

n.
A sharp-pointed surgical instrument, used with a cannula to puncture a body cavity for fluid aspiration.

[French trocart : trois, three (from Old French , from Latin trēs) + carre, side of an instrument (from Old French , from carrer, to square , from Latin quadrāre , from quadrum, square).]


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Medical Dictionary: tro·car
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(trō'kär')
n.

A sharp-pointed surgical instrument, used with a cannula to puncture a body cavity for fluid aspiration.

A sharp-pointed, needle-like instrument equipped with a cannula; used to puncture the wall of a body cavity and withdraw fluid or gas. An especially large bore trocar and cannula, 1.0 to 1.5 cm diameter, is used in the treatment of bloat in cattle.

  • bleeding t. — a large bore, about 10 gauge, needle with a ferruled hub for the attachment of rubber tubing.
  • Duchenne's t. — a trocar for obtaining specimens of deep-seated tissues.
 
 

 

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Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.  Read more
Medical Dictionary. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company Read more
Veterinary Dictionary. Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved.  Read more