公开(公告)号：US20180193056A1

公开(公告)日：2018-07-12

申请号：US15870261

申请日：2018-01-12

Applicant: BOSTON SCIENTIFIC SCIMED, INC.

Inventor： CALEB SCOTT COLYER ,  DAVID GORDON SPANGLER ,  JASON T. ANDERSON ,  DANIEL FRANK MASSIMINI ,  DAVID B. MORRIS ,  LASZLO TRENT FARAGO ,  JOEL R. BREY

IPC: A61B17/3207

CPC classification number: A61B17/320758 ,  A61B17/3207 ,  A61B2017/320004 ,  A61B2017/320775

Abstract: Medical devices and methods for using medical devices are disclosed. A rotational atherectomy device may include an elongate shaft having a proximal end region, a distal end region and a lumen extending therein. The medical device may also include a cutting member positioned adjacent the distal end region of the elongate shaft. The cutting member may include a plurality of helical grooves defined in an outer surface of the cutting member. At least some of the helical grooves may extend at least one full helical rotation about the cutting member. In some cases, at least some of the helical grooves may include a first helical groove extending in a first direction and a second helical groove extending in a second direction that is different from the first direction.