Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Corporeal artificial heart – heart assist – control...
Patent
1996-11-01
1999-03-30
Coggins, Wynn Wood
Prosthesis (i.e., artificial body members), parts thereof, or ai
Corporeal artificial heart, heart assist , control...
604 66, 604 67, 604 50, A61M 110
Patent
active
058882421
ABSTRACT:
An automatic speed control system continually adjusts the speed of an implanted cardiac assist blood pump to an optimum level for the varying physiological needs of the patient. It does this by periodically iteratively incrementing the speed setpoint of the pump. When the system detects the imminence of a ventricular collapse at diastole, it decrements the speed setpoint by a predetermined safety margin. An alarm condition is provided if the setpoint decrease results in an insufficient blood flow rate through the pump. The flow rate and imminence of ventricular collapse are computed in real time as functions of only the pump's motor current and speed setpoint.
REFERENCES:
patent: 5693091 (1997-12-01), Larson, Jr. et al.
patent: 5722930 (1998-03-01), Larson, Jr. et al.
"In Search of Chronic Speed Control for Rotary Blood Pumps"-Article which appeared in the Proceedings of the Waseda International Congress of Modeling and Simulation Technology for Artificial Organs in Tokyo, Japan on 01-03 Aug. 1996; author J.F. Antaki, S. Choi, D. Amin, J.R. Boston, Y.-C. Yu, J.P. Kerrigan, H. Konishi, P. Litwak, H.S. Borovetz, D. Thomas and B.P. Griffith.
Antaki James F.
Boston John Robert
Butler Kenneth C.
Choi Seongjin
Thomas Douglas C.
Coggins Wynn Wood
Gring N. Kent
Nimbus Inc.
Weissenberger Harry G.
LandOfFree
Speed control system for implanted blood pumps does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Speed control system for implanted blood pumps, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Speed control system for implanted blood pumps will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1209936