US 11,992,195 B2
Transfemoral transcaval liver access and devices
Jacob Cynamon, Suffern, NY (US); Deborah Eliana Cynamon, New York, NY (US); and Yosef Golowa, Spring Valley, NY (US)
Assigned to MONTEFIORE MEDICAL CENTER, Bronx, NY (US)
Filed by MONTEFIORE MEDICAL CENTER, Bronx, NY (US)
Filed on Oct. 7, 2022, as Appl. No. 18/045,092.
Application 18/045,092 is a continuation of application No. 16/659,169, filed on Oct. 21, 2019, granted, now 11,504,100.
Application 16/659,169 is a continuation of application No. 15/533,384, granted, now 10,448,931, issued on Oct. 22, 2019, previously published as PCT/US2016/013576, filed on Jan. 15, 2016.
Claims priority of provisional application 62/103,821, filed on Jan. 15, 2015.
Prior Publication US 2023/0181175 A1, Jun. 15, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 10/02 (2006.01); A61B 17/00 (2006.01); A61B 17/34 (2006.01)
CPC A61B 10/0233 (2013.01) [A61B 17/3415 (2013.01); A61B 2017/00946 (2013.01)] 20 Claims
OG exemplary drawing
 
1. 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.