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.
Patent No.:
Date of Patent:
Jun. 24, 2025
Filed:
Jun. 06, 2022
Star Bp, Inc., Spring, TX (US);
Jared D. Allen, Apex, NC (US);
Sean K. Barry, Yukon, OK (US);
Dana G. Pelletier, Newcastle, OK (US);
J. Ryan Stanfield, Sandy, UT (US);
STAR BP, INC., Spring, TX (US);
Abstract
A blood pump system includes a blood pump and a corresponding controller. The blood pump includes an impeller that is sealed within the pump housing and hydrodynamically suspended within the pump housing. The pump impeller includes magnets, and is the rotor of a brushless direct current (DC) motor that is driven by electrical signals through stator wire coils in the pump housing, which creates a rotating magnetic field. The rotating magnetic field attracts the magnetized impeller and spins it with the rotating field. The controller provides field-oriented control for the brushless DC motor in the blood pump. The field-oriented control in the controller is provided in a programmable logic device separate from a control processor so that a software or hardware failure related to the control processor does not stop the blood pump. The field-oriented control allows sensing blood flow through the pump without having sensors in the blood stream.