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1. (WO2017039979) PRESSURE SENSING GUIDEWIRES

Pub. No.:    WO/2017/039979    International Application No.:    PCT/US2016/046178
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Wed Aug 10 01:59:59 CEST 2016
IPC: A61B 5/0215
A61B 5/00
Applicants: BOSTON SCIENTIFIC SCIMED, INC.
Inventors: RADMAN, Lloyd
SHIREMAN, Brice Lee
REYNOLDS, Brian R.
MCGOWAN, Roger W.
Title: PRESSURE SENSING GUIDEWIRES
Abstract:
A medical device for measuring blood pressure includes a proximal shaft and a distal member including a slotted tube defining a distal lumen extending through the slotted tube, the distal lumen aligned with the proximal lumen and including a distal lumen inner surface. A distal cap is secured to the distal member, the distal cap including a distal cap inner surface defining a void space and an optical pressure sensor is disposed within the void space. A fiber optic cable is coupled to the optical pressure sensor and extends proximally through the distal lumen. A tolerance between an outer surface of the fiber optic cable and the inner surface of the distal lumen inner surface limits relative radial movement of the optical pressure sensor relative to the distal cap inner surface such that the optical pressure sensor is constrained from contacting the distal cap inner surface.