Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
John Campbell Woodard0
Colin Neville Sutton0
Date of Patent
December 14, 2010
Patent Application Number
11801144
Date Filed
May 9, 2007
Patent Citations Received
Patent Primary Examiner
Patent abstract
A system for controlling the speed of a rotary blood pump. The system oscillates the speed of the pump to produce pulsed pressure at the outlet of the pump. The speed is oscillated synchronously with the natural cardiac cycle. The natural cardiac cycle is determined using a pulsatility index calculated from the back EMF produced by the pump.
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