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US 11,992,195 B2Granted
Transfemoral transcaval liver access and devices
AssigneeMontefiore Medical Center
InventorsJacob Cynamon, Deborah Eliana Cynamon, Yosef Golowa
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Abstract
Shaped liver biopsy sheaths and methods for transfemoral transcaval liver access are disclosed.
Claims20
A method of obtaining a tissue sample from a liver of a patient, the method comprising:
- inserting a hollow sheath through a femoral vein into a portion of the inferior vena cava (IVC) adjacent to the liver such that the hollow sheath has a tip portion positioned in the intrahepatic IVC with an opening directed toward a wall of the IVC;
- and
- inserting the flexible biopsy needle through the hollow sheath, through the opening, through the wall of the IVC, and into the liver to obtain a tissue sample from the liver.
Dependencies are inferred from the claim text.