Generating artificial pulse

Patent metadata

Field	Value
Publication number	US-8961388-B2
Application number	US-201414261817-A
Country	US
Kind code	B2
Filing date	Apr 25, 2014
Priority date	Sep 24, 2010
Publication date	Feb 24, 2015
Grant date	Feb 24, 2015

Abstract

In order to produce a pulsatile blood flow pattern that includes time periods of relatively high blood flow rates and time periods of relatively low blood flow rates, the operating speed of a blood pump can be selectively controlled to produce an operating speed pattern that includes time periods of relatively high rotation speeds and periods of relatively low rotation speeds. For example, the blood pump is rotated at a first speed for a first period of time. The speed of the blood pump is then decreased from the first speed to a second speed and is operated at the second speed for a second amount of time. The speed of the blood pump is then decreased to a third speed for a third amount of time. If desired, the operating speed pattern can be repeated to continue the pulsatile blood flow pattern.

First claim

The invention claimed is:

1. A method of controlling an implantable blood pump, the method comprising:
operating the implantable blood pump in a first pump speed pattern to provide a pulsatile operational mode;
detecting a low power condition;
transmitting, based on the detection of the low power condition, a signal to the implantable blood pump to transition the implantable blood pump from the first pump speed pattern to a second pump speed pattern, the second pump speed patt…

Assignees

• Thoratec Corp

Inventors

• Bourque Kevin

Classifications

• A61M60/148 Primary

  Human Necessities · mapped topic

• A61M60/546

  Human Necessities · mapped topic

• A61M60/178 Primary

  Human Necessities · mapped topic

• A61M60/822

  Human Necessities · mapped topic

• A61M60/569

  Human Necessities · mapped topic