公开(公告)号：US20180028220A1

公开(公告)日：2018-02-01

申请号：US15663568

申请日：2017-07-28

Applicant: BOSTON SCIENTIFIC SCIMED, INC.

Inventor： PAUL SMITH ,  SAMUEL RAYBIN ,  KEVIN J. McELWEE ,  BRIAN GAFFNEY ,  NAROUN SOUN ,  ISMAIL GULER ,  BRIAN J. HANSON ,  ELIAS A. KHOURY ,  STEVEN R. LARSEN ,  DANIEL H. VanCAMP ,  WADE R. STRELOW ,  RYAN WALES ,  ROBERT B. DeVRIES ,  PETER J. SHANK

IPC: A61B17/3205 ,  A61B18/14

CPC classification number: A61B17/32056 ,  A61B18/1485 ,  A61B2017/00309 ,  A61B2017/00323 ,  A61B2017/00526 ,  A61B2017/00862 ,  A61B2017/00867 ,  A61B2017/320064 ,  A61B2018/00595 ,  A61B2018/141

Abstract: Polypectomy devices and methods for making and using polypectomy devices are disclosed. An example polypectomy device may include an elongate sheath having a proximal end region and a distal end region. A shaft may be slidably disposed within the sheath. A handle may be coupled to the proximal end region of the sheath. The handle may be designed to axially shift the shaft relative to the sheath. A snare may be coupled to the shaft. The snare may include a first region, a traction region, and a distal tip region. The first region may have a non-circular cross-sectional shape. The traction region may include a plurality of traction members. At a position between two adjacent traction members the snare may have a reduced cross-sectional area relative to the first region. The distal tip region may have a circular cross-sectional shape.