Trocar

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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 After the skin is pierced under local anesthesia, the mandrin is withdrawn by means of the handle, and the fluid flows out through the tube.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.

References in periodicals archive ?
Contract awarded for Surgery laparoscopic trocar, clamp sealing blood vessels.
With the TOT approach, the likelihood of bladder injury is so low that I usually drive the trocars all the way through prior to cystoscopy, as opposed to leaving the needles in place as I do with the retropubic approach.
On the basis of equipment, the market has been estimated for laparoscopes, irrigation systems, insufflation devices, trocars, sample retrieval bags, wound protectors, internal closure devices, gastric bands, hand-assist devices, and energy systems.
A specimen bag is used to place the thyroid and removed by dilating the 10mm trocar," Dr Padmakumar explained, adding that for a total thyroidectomy, one will have to put additional trocars on the opposite side and repeat the same steps.
The sharp metal trocars have been phased out and ALSGBI now recommends all hospitals should be using blunt, disposable trocars.
After establishing the pneumoperitoneum by Veress needle or by Hasson technique, three to four trocars are usually placed between the midclavicular line and anterior axillary line 2 cm caudally to the costal margin.
Classic describes trocars as complex, sleeve-like tools that provide surgeons with a tunnel in which to insert instruments such as laparoscopes for certain minimally invasive surgical procedures.
The versatile design of the bright yellow ScrubSafe allows it to be used on one side to contain scalpels, drain trocars, K-wires, Steinman pins, skin hooks, and Cats Paw retractors; special sloping sides guide and capture instruments in a position that allows only safe grasping to occur.
Through small incisions, other trocars were then placed into her abdomen.
The Versaport bladeless optical 5 mm trocar is the newest addition to the Versaport bladeless family of trocars.
In minimally invasive surgery, this requires longer trocars and Veress needles, which are now routinely available.