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Patent Searching and Data


Title:
連続流式全置換型人工心臓の生理学的制御方法
Document Type and Number:
Japanese Patent JP2012514709
Kind Code:
A
Abstract:
A method is provided of controlling a pump including a electrical motor coupled to a rotor which carries first and second impellers at opposite ends thereof. The method includes: (a) driving the rotor using the motor, so as to circulate fluid from the first impeller through a first fluid circuit, the second impeller, a second fluid circuit, and back to the first impeller; (b) determining a resistance of the first fluid circuit, based on a first motor parameter which is a function of electrical power delivered to the motor; (c) determining a flow rate through the first fluid circuit based on a second motor parameter which is a function of electrical power delivered to the motor; and (d) varying at least one operational parameter of the pump so as to maintain a predetermined relationship between the flow rate and the resistance of the first fluid circuit.

Inventors:
Hovath, David
Maciero, alex
Golding, Leonardo
Couban, Barry
Application Number:
JP2011544670A
Publication Date:
June 28, 2012
Filing Date:
January 06, 2010
Export Citation:
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Assignee:
The Cleveland ClinicFoundation
International Classes:
F04D15/00; A61M1/12; F04D7/04; H02P6/08
Domestic Patent References:
JP2001517495A2001-10-09
Foreign References:
US20070253842A12007-11-01
Attorney, Agent or Firm:
Hiroe Associates Patent Office