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General Information about Liver Biopsy System

April 24, 2017


Liver biopsy is a medical procedure which is done to collect tissue samples Liver Biopsy Systemfrom the liver for diagnosis and monitoring of progress of liver disease. Liver biopsy can be done in 3 ways- first, percutaneously through skin, second, transvenously through blood vessels, and third, during abdominal surgery.

Two types of needles are used for percutaneous liver biopsy-

  1. Aspiration or suction-type needles, for example, such as Menghini, Klatskin, Jamshidi, etc. The length of Menghini needle is 6 cm and diameter less than 1.4 mm and has an oblique tip.
  2. Cutting-type needles such as Vim-Silverman, Tru-Cut, and spring-loaded devices (automatic biopsy needle). The Tru-Cut biopsy needle is a disposable type of Vim-Silverman needle with a pointed end and cannula. Spring loaded devices include automatic biopsy needles which does automatic triggering to collect tissue sample from liver parenchyma. True cut needles are preferred to aspiration needles in patients with liver cirrhosis or fibrosis.

T-Lab Transjugular liver biopsy system is the latest device to perform biopsy. It contains needle with flexcore technology which adjusts according to the curvature of the sheath and can navigate easily through the tortuous anatomy of liver. The sheath has a safety funnel with which the needle can be unloaded and loaded easily without the risk of needle stick injury. The device contains swab sticks which can efficiently remove sample, while keeping the hand of the user away from the needle. There is a radio opaque band attached to the tip of the sheath which helps to visualize the location of the sheath during the procedure. Also there are red markings on the needle and introducer sheath which helps in proper alignment of the device during the procedure and a black mark on the end of the needle which helps to understand when the needle has reached the end of the sheath.

Disclaimer: The information given in this write-up is purely for educating the reader. It is not meant to be a substitute for any advice from a medical expert.