Blood pump system

Details Blood pump system Blood pump system

2007-01-09

2007-01-09

Pezzuto, Robert E. (Department: 3766)

Surgery

Cardiac augmentation

C623S003130

Reexamination Certificate

active

10671543

ABSTRACT:
A blood pump system includes a housing having an inlet port and an outlet port, a rotor rotated in the housing for pumping blood, and a motor for rotating the rotor. The blood pump system includes a motor current measuring function, and a backflow detecting function for detecting a backflow of blood by use of the motor current value continuously measured by the motor current measuring function.

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patent: WO 01/72352 (2001-10-01), None
Yuhki A, Hatoh E, Nogawa M, Miura M, Shimazaki Y, Takatani S. “Detection of Suction and Regurgitation of the Implantable Centrifugal Pump Based on the Motor Current Waveform Analysis and Its Application to Optimization of Pump Flow.” Artificial Organs, 1999. 23(6): 532-537.
Kikugawa D. “Motor Current Waveforms as an Index for Evaluation of Native Cardiac Function During Left Ventricular Support with a Centrifugal Pump.” Artificial Organs, 2001. 15(9): 703-708.

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