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Abstract

An instrument for performing surgical cholangiography during either conventional colecistectomy or video-laparoscopic cholecistectomy included a tube slidably mounted into another having a rotative bidigital control. The control allows sliding such that the outer tube ending to acts on a forceps at the inner tube ending, making the forceps jaws move away or come near each other, causing the jaws to respectively move away or approach a needle, which also belongs to the inner tube, is centered between the jaws, and is used for cannulating the cystic duct. The jaws, in closed function when the needle is in the duct, press the duct and needle together, avoiding both sliding of the needle and escape of the contrast liquid which is injected from the other end of the inner tube. During the video-laparoscopic cholecistectomy, the design and size of the instrument allow it to enter the abdominal cavity through a cannula with a diameter less than others commonly used in this type of surgery.

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First Claim