What is a trocar used for?
Abstract. Trocars are used during laparoscopic procedures and other minimally invasive surgery (MIS) to make small, puncturelike incisions in outer tissue layers. These incisions allow surgeons to insert cannulas through which surgical instruments can be introduced.
What type of instrument is a trocar?
A trocar (or trochar) is a medical or veterinary device that is made up of an awl (which may be a metal or plastic sharpened or non-bladed tip), a cannula (essentially a hollow tube), and a seal. Trocars are placed through the abdomen during laparoscopic surgery.
What type of trocars are used for laparoscopy?
The following trocar types were examined: radially expanding versus cutting (six studies; 604 participants), conical blunt-tipped versus cutting (two studies; 72 participants), radially expanding versus conical blunt-tipped (one study; 28 participants) and single-bladed versus pyramidal-bladed (one study; 28 …
Where are trocars placed?
Therefore trocars are usually placed in the lower abdomen lateral to the rectus muscle above the ASIS (Fig. 112.6). If an additional trocar is required, it is placed at the level of the umbilicus lateral to the rectus muscle.
Is cannula same as trocar?
Summary. In its simplest configuration, a trocar is a pen-shaped instrument with a sharp triangular point at one end, typically used inside a hollow cylinder, known as a cannula or sleeve, which provides an access port into a cavity during surgery.
What is curette used for?
thin metal tool called a curette is used to scrape (rather than vacuum out) the contents of the uterus, the procedure is called dilatation and curettage. When combined with dilatation, both evacuation and curettage can be used up to about the 16th week of pregnancy.
What metal are trocars made of?
Most trocars used in surgical facilities are disposable. However, many trocar systems are available in reposable (reusable) versions. Reposable trocars and obturators are usually made of a metal such as titanium that can be reprocessed.
How do you insert trocars?
In this technique, a vertical incision is made midway between the xiphisternum and the umbilicus. Veress needle is inserted into the abdomen through this point. Carbon dioxide insufflation is done. A disposable trocar is then inserted directly through this incision into the abdomen.
Who invented trocars?
The emerging different types of diseases have increased the need for medical devices such as trocars. Although the use of trocars is thought to date back thousands of years, they emerged in the early 19th century and as a result of years of research on trocars, Reginald Southey invented the Southey tube.