Also found in: Medical, Encyclopedia, Wikipedia.
Related to trocar: Hasson trocar


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).]


(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]


(ˈtroʊ kɑr)

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]
References in periodicals archive ?
TROCAR, an electronic system for recording patient information, will start on one of Morriston Hospital's medical wards but will eventually be rolled out across the health board.
When a resident physician inserted the trocar, the right common iliac artery and vein were injured.
The insertion of 4th trocar laterally in traditional method required for grasping and lifting gall bladder upward and towards right shoulder has been challenged by many authors worldwide7,8.
Unfortunately, for them it was technically impossible to make a proper trocar with all the valves and seals.
17] Predisposing factors of PSH include pre-existing umbilical fascial defects, obesity, need to extend the incision to retrieve larger organs, trocar diameter, reinsertion of ports, wound infection and older age with comorbid diseases.
Risk factors for umbilical trocar site incisional hernia in laparoscopic cholecystectomy: a prospective 3-year follow-up study.
Muzzy expands its Trocar broadhead series with the Trocar Switch, a fixed-blade featuring three razor-sharp, .
All trocar sites were initially closed using 0-vicryl sutures on the fascia, followed by a separate skin closure.
Closed techniques include Veress Needle (VN) technique and the direct trocar technique, which involve the blind insertion of the trocar directly into the peritoneal cavity, followed by laparoscopic inspection and subsequent gas insufflations.
With my index finger underneath the pubic bone, the trocar tip, with the attached sling, is advanced with my thumb directly toward the ipsilateral shoulder just until it pops through the retropubic space.
A video bronchoscope Pentax SAFE 3000 (Model EB-1570 AK, Pentax, Tokyo, Japan) was then inserted via the trocar and the pleural cavity was inspected after all the fluid had been drained.