US 9,808,226 B2
Soft tissue coring biopsy devices and methods
James William Vetter, Portola Valley, CA (US)
Assigned to TransMed7, LLC, Portola Valley, CA (US)
Filed by TRANSMED7, LLC, Portola Valley, CA (US)
Filed on Mar. 29, 2013, as Appl. No. 13/853,806.
Application 13/853,806 is a division of application No. 13/651,393, filed on Oct. 13, 2012, abandoned.
Claims priority of provisional application 61/547,678, filed on Oct. 15, 2011.
Prior Publication US 2014/0128769 A1, May 8, 2014
Int. Cl. A61B 10/02 (2006.01); A61B 10/06 (2006.01); A61B 17/32 (2006.01); A61B 17/00 (2006.01)
CPC A61B 10/0266 (2013.01) [A61B 10/06 (2013.01); A61B 10/0283 (2013.01); A61B 2010/0225 (2013.01); A61B 2017/00685 (2013.01); A61B 2017/320064 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A biopsy device, comprising:
a hollow shaft comprising a longitudinal lumen of a first diameter that defines a first radius of curvature;
a beak assembly disposed at a distal end of the hollow shaft, the beak assembly comprising a first articulated movable cutting element and a second articulated movable cutting element, each of the first and second articulated movable cutting elements comprising a proximal portion and a distal portion that is narrower than the proximal portion, and comprising an outer surface and an inner surface, the inner surfaces of the first and of the second articulated movable cutting elements having the first radius of curvature from a proximal-most end to a distal most end thereof, the beak assembly being configured to rotate and assume at least a first configuration in which the first and second articulated movable cutting elements are operative to cut a core of a second diameter that is greater than the first diameter through tissue and a second configuration in which the first and second articulated movable cutting elements are operative to cut and move through the tissue and to sever the core; and
a helical tissue transport element disposed within the hollow shaft and configured to transport the core through the hollow shaft as the hollow shaft compresses the core, the helical tissue transport element being coupled to the beak assembly and configured to cause the first and second articulated cutting elements to move between the first and second configurations.