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 After the skin is pierced under local anesthesia, the mandrin is withdrawn by means of the handle, and the fluid flows out through the tube.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 ?
WiseGuyReports.com adds "Disposable Laparoscopic Trocar Market 2018 Global Analysis, Growth, Trends and Opportunities Research Report Forecasting to 2023" reports to its database
All patients were divided into groups according to the site of trocar insertion and incision type then compared in terms of cosmetic outcome.
Both techniques are being used at different centres and a few studies have been published comparing their advantages and disadvantages but no technique has been shown to be superior to the other.6 The open technique is considered safer.7 The open technique reduces the number of "blind steps" from 3 with the Veress needle (insertion, insufflations, and first trocar introduction), to just one; the trocar introduction.2 There have been many studies comparing the efficacy and safety of the numerous access techniques although meta-reviews of these have turned out to be inconclusive.
For the hysterectomy, I make two 5-mm vertical incisions within the umbilicus--one for a nonbladed 5-mm trocar at 12 o'clock and the other for a second nonbladed 5-mm trocar at 6 o'clock, penetrating the fascia.
Many physicians still prefer trocar thoracostomy in India, for the ease of insertion.
In the article by Altuntas et al., entitled "Re: Comment on: Comparison of Intraabdominal and Trocar Site Local Anaesthetic Infiltration on Postoperative Analgesia After Laparoscopic Cholecystectomy" that was published in the August 2017 issue of the Turkish Journal of Anaesthesiology and Reanimation, the page numbers of the first reference were not included.
> PATIENT'S CLAIM: The resident was negligent in performing trocar insertion during laparoscopic surgery by inserting the trocar too far into the abdomen.
Laparoscopic trocar injuries: a report from a US FDA center for devices and radiological health (CDRH) systematic technology assessment of medical products (STAMP) committee.
Risk factors for umbilical trocar site incisional hernia in laparoscopic cholecystectomy: a prospective 3-year follow-up study.
All trocar sites were initially closed using 0-vicryl sutures on the fascia, followed by a separate skin closure.