US 11,850,073 B2
Medical device with pressure sensor
Cory P. Wright, Woodbury, MN (US); Nathaniel Stark, Plymouth, MN (US); Wenguang Li, Los Gatos, CA (US); Gaylin Mildred Yee, Newark, CA (US); Neil Pollock, Hertfordshire (GB); Mikhail E. Bashtanov, Cambridge (GB); Fahad Hussain, Hertfordshire (GB); and Mette Funding La Cour, Cambridge (GB)
Assigned to BOSTON SCIENTIFIC SCIMED, INC., Maple Grove, MN (US)
Filed by BOSTON SCIENTIFIC SCIMED, INC., Maple Grove, MN (US)
Filed on Mar. 21, 2019, as Appl. No. 16/361,194.
Claims priority of provisional application 62/647,169, filed on Mar. 23, 2018.
Prior Publication US 2019/0290207 A1, Sep. 26, 2019
Int. Cl. A61B 5/00 (2006.01); A61B 5/0215 (2006.01); A61L 29/10 (2006.01); A61L 29/14 (2006.01); A61B 90/00 (2016.01); A61M 25/09 (2006.01); A61M 25/00 (2006.01)
CPC A61B 5/6851 (2013.01) [A61B 5/02154 (2013.01); A61B 5/02156 (2013.01); A61B 5/6885 (2013.01); A61L 29/106 (2013.01); A61L 29/14 (2013.01); A61B 2090/3614 (2016.02); A61B 2562/0233 (2013.01); A61B 2562/0247 (2013.01); A61M 2025/0002 (2013.01); A61M 2025/09083 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A pressure sensing guidewire, comprising:
a tubular member having a proximal region and a housing region;
an optical pressure sensor disposed within the housing region;
wherein the optical pressure sensor includes a sensor body having a cavity formed therein and a deflectable membrane coupled to the sensor body and extending across the cavity;
wherein the deflectable membrane includes a polymer;
an optical fiber coupled to the sensor body and extending proximally therefrom; and
wherein a pressure equalization channel is formed in the optical fiber and extending into the cavity, the sensor body, or both, and
wherein the pressure equalization channel is in fluid communication with the deflectable membrane.