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1. (WO2015119946) ELONGATE MEDICAL DEVICE INCLUDING CHAMFERED RING ELECTRODE AND VARIABLE SHAFT

Pub. No.:    WO/2015/119946    International Application No.:    PCT/US2015/014254
Publication Date: Fri Aug 14 01:59:59 CEST 2015 International Filing Date: Wed Feb 04 00:59:59 CET 2015
IPC: A61B 18/14
A61M 25/01
A61B 18/00
A61B 19/00
A61M 25/00
A61B 18/16
Applicants: ST. JUDE MEDICAL, CARDIOLOGY DIVISION, INC.
Inventors: HELGESON, Zachary Lee
HOUCK, Alexander Carson
HER, John Son
GONZALEZ, Salome A.
MOM, Somally
MONAHAN, Brian Michael
HAWKINSON, Neil David
NIGG, James Reginald
MARRS, James Clayton
KHIEU, Xuan Yen
TEGG, Troy Terrance
LAFAVOR, Jill
BYRD, Israel A.
Title: ELONGATE MEDICAL DEVICE INCLUDING CHAMFERED RING ELECTRODE AND VARIABLE SHAFT
Abstract:
An elongate medical device shaft may comprise an elongate body and an annular electrode disposed on the elongate body. The annular electrode may define a longitudinal axis and have an outer diameter. The outer diameter may be greater at an axial center of the electrode than at an axial end of the electrode. Additionally or alternatively, the elongate body may comprise three longitudinal sections having three wall thicknesses. The middle wall thickness may be less than the proximal and distal wall thicknesses and the distal wall thickness may be less than the proximal wall thickness. Additionally or alternatively, the shaft may comprise an inner cylindrical structure and an outer tube. The outer tube may comprise a first radial layer and a second radial layer that is radially-outward of the first radial layer, the first radial layer, second radial layer, and inner structure having different stiffnesses.