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 After the skin is pierced under local anesthesia, the mandrin is withdrawn by means of the handle, and the fluid flows out through the tube.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 ?
1) bladeless trocar 5mm x 100mm and 10 or 12mm x 100mm;
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.
By integrating Ultravision into a high-quality trocar, we are making the process of clearing smoke even easier for surgical teams.
Trocars are introduced in a similar 15 to 20 degrees caudal direction.
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.
Optical trocars have a transparent tip that allows the surgeon to visualize the abdominal-wall entry layer by layer using a 0[degrees] laparoscope, usually after pneumoperitoneum is created with a Veress needle.
For this reason many alternative methods were introduced like open technique by Harrith Hasson, direct trocar, optical trocars, radially expanding trocar and disposable shielded trocars.
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.
By reworking the molds, employing new injection molding technology, and automating the injection molding and pad printing processes, the company says, it pulled the client from a backorder situation to one in which it can smoothly meet the high market demand for its line of trocars.
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.
The Versaport bladeless optical 5 mm trocar is the newest addition to the Versaport bladeless family of trocars.