The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 23, 2026

Filed:

Mar. 10, 2023
Applicant:

Abiomed, Inc., Danvers, MA (US);

Inventors:

Mohammed Alwatban, Danvers, MA (US);

Ahmad El Katerji, Danvers, MA (US);

Maxim Daschewski, Berlin, DE;

Gerd Spanier, Aachen, DE;

Andre Chuev, Aachen, DE;

Qing Tan, Danvers, MA (US);

Samuel Brown, Danvers, MA (US);

Assignee:

Abiomed, Inc., Danvers, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 60/538 (2021.01); A61M 60/178 (2021.01); A61M 60/216 (2021.01); A61M 60/422 (2021.01); A61M 60/546 (2021.01); F04B 51/00 (2006.01); G01F 11/00 (2006.01); G01F 25/10 (2022.01);
U.S. Cl.
CPC ...
A61M 60/538 (2021.01); A61M 60/178 (2021.01); A61M 60/216 (2021.01); A61M 60/422 (2021.01); A61M 60/546 (2021.01); F04B 51/00 (2013.01); G01F 11/006 (2013.01); G01F 25/10 (2022.01); Y02B 30/70 (2013.01);
Abstract

Methods and apparatus for determining flow through a circulatory support device are provided. The method comprises receiving a motor current signal from a motor of the circulatory support device, determining within a time window of the motor current signal, a measured current value at which flow through the circulatory support device is maximum, determining an offset value based, at least in part, on the measured current value, determining based, at least in part, on the received motor current signal, whether an abnormal condition has occurred, adjusting the motor current signal based, at least in part, on the offset value and the determination of whether an abnormal condition has occurred to produce an adjusted motor current signal, and determining the flow through the circulatory support device based, at least in part, on the adjusted motor current signal.


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