US 12,268,861 B2
Blood pump assembly having a sensor and a sensor shield
Ralph Louis D'Ambrosio, Danvers, MA (US); Bruce Adams, Danvers, MA (US); Michael Thomas Finnegan, Danvers, MA (US); Gerd Spanier, Aachen (DE); and Thorsten Siess, Aachen (DE)
Assigned to ABIOMED, INC., Danvers, MA (US)
Filed by ABIOMED, Inc., Danvers, MA (US)
Filed on Oct. 31, 2023, as Appl. No. 18/385,426.
Application 18/385,426 is a division of application No. 17/308,246, filed on May 5, 2021, granted, now 11,844,940.
Application 17/308,246 is a continuation of application No. 16/433,138, filed on Jun. 6, 2019, granted, now 11,027,114, issued on Jun. 8, 2021.
Application 16/433,138 is a continuation of application No. 15/615,259, filed on Jun. 6, 2017, granted, now 10,342,906, issued on Jul. 9, 2019.
Claims priority of provisional application 62/346,163, filed on Jun. 6, 2016.
Prior Publication US 2024/0139496 A1, May 2, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 5/0215 (2006.01); A61M 60/13 (2021.01); A61M 60/148 (2021.01); A61M 60/174 (2021.01); A61M 60/216 (2021.01); A61M 60/414 (2021.01); A61M 60/546 (2021.01); A61M 60/816 (2021.01)
CPC A61M 60/148 (2021.01) [A61M 60/13 (2021.01); A61M 60/174 (2021.01); A61M 60/216 (2021.01); A61M 60/414 (2021.01); A61M 60/546 (2021.01); A61M 60/816 (2021.01); A61M 2205/3334 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method of detecting blood pressure comprising:
pumping blood through a cannula assembly coupled to a blood pump housing component, the blood pumped by an impeller blade positioned at least in part in the blood pump housing component, the impeller blade rotated by a drive unit coupled to the impeller blade, the blood pump housing component including a peripheral wall extending about a rotational axis of the impeller blade; and
detecting a blood pressure of the blood pumped using an optical pressure sensor coupled to the peripheral wall of the blood pump housing component, the optical pressure sensor including a sensor membrane configured to deflect in response to a change in pressure on the sensor membrane, the sensor membrane coupled to an optical fiber, and the optical pressure sensor including a sensor visor overhanging the sensor membrane.