Early warning of lvad thrombus formation
AssigneeHeartWare, Inc.
InventorsAbhijit Kadrolkar, Robert W. Stadler, Michael C. Brown
Life of this patent
Estimating the term…
Abstract
A method of determining an adverse event within a patient having an implantable blood pump including calculating a plurality of power consumption trends of the blood pump during a plurality of time periods using a low-pass filter, determining a plurality of power trend differences between the plurality of power consumption trends, calculating a total amount of the plurality of power trend differences during a time interval, and generating an alarm when the total amount of the plurality of power trend differences exceeds a pre-determined threshold.
Claims1
A method of determining an adverse event within a patient having an implantable blood pump, the method comprising:
- determining power consumption of the blood pump over a period of time;
- filtering the power consumption of the blood pump by a pair of low pass filters having different cutoff frequencies to differentiate between short term power consumption changes and long term power consumption changes;
- and
- determining when a long term power consumption change exceeds a predetermined threshold.
Dependencies are inferred from the claim text.