US 11,779,367 B2
Polypectomy snare devices
Paul Smith, Smithfield, RI (US); Samuel Raybin, Marlborough, MA (US); Kevin J. McElwee, Acton, MA (US); Brian Gaffney, Rutland, MA (US); Naroun Soun, Lawrence, MA (US); Ismail Guler, Maple Grove, MN (US); Brian J. Hanson, Shoreview, MN (US); Elias A. Khoury, Maple Grove, MN (US); Steven R. Larsen, Lino Lakes, MN (US); Daniel H. VanCamp, Elk River, MN (US); Wade R. Strelow, Maple Grove, MN (US); Ryan Wales, Northborough, MA (US); Robert B. DeVries, Northborough, MA (US); and Peter J. Shank, Boylston, MA (US)
Assigned to Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed by BOSTON SCIENTIFIC SCIMED, INC., Maple Grove, MN (US)
Filed on Feb. 27, 2020, as Appl. No. 16/803,148.
Application 16/803,148 is a continuation of application No. 15/663,568, filed on Jul. 28, 2017, granted, now 10,603,067.
Claims priority of provisional application 62/367,902, filed on Jul. 28, 2016.
Prior Publication US 2020/0187975 A1, Jun. 18, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/3205 (2006.01); A61B 18/14 (2006.01); A61B 17/32 (2006.01); A61B 17/00 (2006.01); A61B 18/00 (2006.01)
CPC A61B 17/32056 (2013.01) [A61B 18/1485 (2013.01); A61B 2017/00309 (2013.01); A61B 2017/00323 (2013.01); A61B 2017/00526 (2013.01); A61B 2017/00862 (2013.01); A61B 2017/00867 (2013.01); A61B 2017/320064 (2013.01); A61B 2018/00595 (2013.01); A61B 2018/141 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A polypectomy device, comprising:
an elongate sheath having a proximal end region and a distal end region;
a shaft slidably disposed within the sheath;
a handle coupled to the proximal end region of the sheath;
a snare coupled to the shaft, the snare including a first region having a first cross-sectional shape, a traction region including a plurality of traction members, and a distal tip region;
wherein the first cross-sectional shape is a non-circular shape;
wherein at a position between two adjacent traction members the snare has a second cross-sectional shape that is geometrically similar to the first cross-sectional shape and has a reduced cross-sectional area relative to the first region; and
wherein the distal tip region has a circular cross-sectional shape.