US 12,241,480 B2
Blood pump housing component
Scott C. Corbett, Danvers, MA (US); Zhongwei Qi, Danvers, MA (US); and Kar Lee, Danvers, MA (US)
Assigned to ABIOMED, Inc., Danvers, MA (US)
Filed by ABIOMED, Inc., Danvers, MA (US)
Filed on May 20, 2022, as Appl. No. 17/749,267.
Application 17/749,267 is a continuation of application No. 16/937,023, filed on Jul. 23, 2020, granted, now 11,364,373.
Application 16/937,023 is a continuation of application No. 15/784,694, filed on Oct. 16, 2017, abandoned.
Application 15/784,694 is a continuation of application No. 15/237,836, filed on Aug. 16, 2016, granted, now 9,821,100, issued on Nov. 21, 2017.
Application 15/237,836 is a continuation of application No. 14/711,143, filed on May 13, 2015, granted, now 9,433,713, issued on Sep. 6, 2016.
Claims priority of provisional application 61/992,835, filed on May 13, 2014.
Prior Publication US 2022/0347459 A1, Nov. 3, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 60/148 (2021.01); A61M 60/174 (2021.01); A61M 60/216 (2021.01); A61M 60/414 (2021.01); A61M 60/508 (2021.01); A61M 60/857 (2021.01); C25F 3/16 (2006.01); F04D 3/00 (2006.01); F04D 7/00 (2006.01); F04D 29/18 (2006.01); F04D 29/52 (2006.01); F04D 29/64 (2006.01)
CPC F04D 3/005 (2013.01) [A61M 60/148 (2021.01); A61M 60/174 (2021.01); A61M 60/216 (2021.01); A61M 60/414 (2021.01); A61M 60/508 (2021.01); A61M 60/857 (2021.01); C25F 3/16 (2013.01); F04D 7/00 (2013.01); F04D 29/181 (2013.01); F04D 29/528 (2013.01); F04D 29/648 (2013.01); Y10T 29/49247 (2015.01)] 20 Claims
OG exemplary drawing
 
1. A blood pump assembly comprising:
a pump;
an impeller having one or more blades, the pump being configured to drive the impeller in rotation; and
a pump housing component sized for passage through a vascular lumen of a body and coupled to the pump, the pump housing component including a peripheral wall extending about a rotation axis of the impeller, the peripheral wall having:
an inner surface,
an outer surface, and
a plurality of blood exhaust apertures, each blood exhaust aperture of the plurality of blood exhaust apertures being defined by an inner edge and an outer edge between the inner surface and the outer surface, and
wherein the inner edge of each blood exhaust aperture is rounded, and the outer edge of each blood exhaust aperture is chamfered.