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trocar
tro·car T0373200 (trō′kär′)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; see trei- in Indo-European roots) + carre, side of an instrument (from Old French, from carrer, to square, from Latin quadrāre, from quadrum, square; see kwetwer- in Indo-European roots).]trocar (ˈtrəʊkɑː) n (Surgery) a surgical instrument for removing fluid from bodily cavities, consisting of a puncturing device situated inside a tube[C18: from French trocart literally: with three sides, from trois three + carre side]tro•car (ˈtroʊ kɑr)
n. a sharp-pointed surgical instrument enclosed in a cannula, used for withdrawing fluid from a cavity, as the abdominal cavity. [1700–10; earlier trocart < French, literally, three-sided] Trocar
Trocar a medical instrument for piercing the wall of the abdominal or thoracic cavity and extracting an exúdate or transudate. The trocar consists of a handle onto which tubes 1–3 mm in diameter are screwed. The sharp end of a mandrin that runs through the tube protrudes from it. The trocar is sterilized before use by boiling. After the skin is pierced under local anesthesia, the mandrin is withdrawn by means of the handle, and the fluid flows out through the tube. A drain may be inserted through this tube to permit a constant flow of fluid. trocar
trocar [tro´kahr] a sharp-pointed instrument equipped with a cannula; used to puncture the wall of a body cavity and withdraw fluid or to introduce an endoscope.tro·car (trō'kar), An instrument for withdrawing fluid from a cavity, or for use in paracentesis. It consists of a metal tube (cannula) into which fits an obturator with a sharp three-cornered tip, which is withdrawn after the instrument has been pushed into the cavity; the name trocar is usually applied to the obturator alone, the entire instrument being designated trocar and cannula. [Fr. trocart, fr. trois, three, + carre, side (of a sword blade)] trocar (trō′kär′)n. A sharp-pointed surgical instrument, used with a cannula to puncture a body cavity for fluid aspiration.trocar Laparoscopic surgery A blunt needle-shaped instrument used to withdraw fluid from a body cavity, or perform a 'centesis'. See Saber BT™blunt-tip surgical. tro·car (trō'kahr) An instrument for withdrawing fluid from a cavity, or for use in paracentesis; it consists of a metal tube (cannula) into which fits an obturator with a sharp three-cornered tip, which is withdrawn after the instrument has been pushed into the cavity; the name trocar is usually applied to the obturator alone, the entire instrument being designated trocar and cannula. [Fr. trocart, fr. trois, three, + carre, side (of a sword blade)]trocar A sharp-pointed surgical stilette normally used within a CANNULA to allow its insertion into a body cavity. After the trocar and cannula have been inserted into the body, the trocar is withdrawn, leaving the cannula in place.TrocarA sharp pointed tube through which a needle can be inserted.Mentioned in: Joint Biopsy |