Laparoscopy(redirected from gasless laparoscopy)
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the diagnostic examination of the abdominal cavity and its organs through a puncture of the abdominal wall with an optical instrument called a laparoscope; first performed in 1901 by the Russian obstetrician-gynecologist D. O. Otto.
The laparoscope consists of a trocar (a stylet with a sheath); an illumination and optical system; and attachments for taking a piece of tissue or organ, still and motion pictures, and X-ray contrasts of the biliary tract. The laparoscopy is performed with local anesthesia under aseptic conditions. The choice of site for the puncture depends on the region or organ being examined. A single puncture allows examination of the organs of the abdominal cavity and peritoneum within limits defined by the length of the optical system.