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A surgical instrument with a three-sided cutting point enclosed in a tube, used for withdrawing fluid from a body cavity.
- ‘The surgeon makes the port incisions on the left chest and inserts the camera and surgical trocars.’
- ‘When the pressure on the patient side is higher than at the insufflator connecting point, body fluid or gas is allowed to flow up the trocar cannula through the insufflation tubing and into the insufflator.’
- ‘Morbid obesity also may be a contraindication due to the limited length of the trocars and laparoscopic instruments.’
- ‘Using instruments like trocars, endoscopes, and cameras requires some degree of technological know-how that may present a disadvantage to people who did not grow up in a video-inundated world.’
- ‘Laparoscopic surgery involves placing trocars through the skin.’
Early 18th century: from French trocart, trois-quarts, from trois three + carre side, face of an instrument.
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