trocar

(redirected from trocars)
Also found in: Dictionary, Encyclopedia.
Related to trocars: Trochar

trocar

 [tro´kahr]
a sharp-pointed instrument equipped with a cannula; used to puncture the wall of a body cavity and withdraw fluid or to introduce an endoscope.

tro·car

(trō'kar),
An instrument for withdrawing fluid from a cavity, or for use in paracentesis. It consists of a metal tube (cannula) into which fits an obturator with a sharp three-cornered tip, which is withdrawn after the instrument has been pushed into the cavity; the name trocar is usually applied to the obturator alone, the entire instrument being designated trocar and cannula.
[Fr. trocart, fr. trois, three, + carre, side (of a sword blade)]

trocar

(trō′kär′)
n.
A sharp-pointed surgical instrument, used with a cannula to puncture a body cavity for fluid aspiration.

trocar

Laparoscopic surgery A blunt needle-shaped instrument used to withdraw fluid from a body cavity, or perform a 'centesis'. See Saber BTblunt-tip surgical.

tro·car

(trō'kahr)
An instrument for withdrawing fluid from a cavity, or for use in paracentesis; it consists of a metal tube (cannula) into which fits an obturator with a sharp three-cornered tip, which is withdrawn after the instrument has been pushed into the cavity; the name trocar is usually applied to the obturator alone, the entire instrument being designated trocar and cannula.
[Fr. trocart, fr. trois, three, + carre, side (of a sword blade)]

trocar

A sharp-pointed surgical stilette normally used within a CANNULA to allow its insertion into a body cavity. After the trocar and cannula have been inserted into the body, the trocar is withdrawn, leaving the cannula in place.

Trocar

A sharp pointed tube through which a needle can be inserted.
Mentioned in: Joint Biopsy
References in periodicals archive ?
A vertical or transverse umbilical incision was appropriately widened enough (1.0-1.5 cm) for the trocar to be inserted without undue resistance from the skin so that the trocar passed through the fascia and the peritoneum with ease.
Laparoscopic abdominal surgery requires the implementation of successful pneumoperitoneum.1 In vast majority of patients, more than half of all complications happen at the time of entry and a great majority of these occur during the insertion of the primary umbilical trocar.2 To address this issue, various techniques have evolved to gain access to the peritoneal cavity.
The percutaneous system has an outer diameter of 2.3 mm, integrated needle tips that facilitate insertion without a trocar, and a selection of integrated graspers (e.g., a miniature clutch or alligator) that open up to 12.5 mm and can be advanced and retracted through the cannula.
Then dissection was carried out using diathermy hook to remove gall bladder from liver bed while securing hemostasis and freed gall bladder was removed through umbilical trocar using improvised endo-bag made of sterilized surgical gloves.
Does the use of pneumoperitoneum and disposable trocars prevent bowel injury at laparoscopy a randomised experimental study in the rabbit?
10mm Trocar in an oversleeve was introduced steadily till a hissing sound was heard and/or a change in resistance was felt.
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.
Having assumed production of a line of surgical trocar sleeves, Classic Industries reports that it has achieved a two-fold increase in production, improved quality, and reduced costs, while eliminating the need for the customer (a Fortune 100 medical-device manufacturer) to invest in additional molds.
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.