Patent ID: 11857345
Assignee: BOSTON SCIENTIFIC SCIMED, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 8:
9. A pressure sensing guidewire, comprising:
an elongated tubular member having a proximal region and a distal region and a lumen extending therethrough;
an optical pressure sensing block disposed within the lumen, the optical pressure sensing block formed from a monolithic glass block and including a distal portion, a proximal portion and a central portion disposed between the distal portion and the proximal portion;
a pressure sensing membrane disposed on the distal portion of the optical pressure sensing block; the proximal portion forming an optical fiber connector; and
an optical fiber extending through the lumen and including a distal end, the distal end coupled to the optical fiber connector;
wherein an outer surface of the distal portion tapers from the central portion to a position proximate the pressure sensing membrane and the proximal portion tapers from the central portion to the optical fiber connector such that the central portion spaces the pressure sensing membrane away from a side wall of the lumen.