A ROTARY BLOOD PUMP AND CONTROL SYSTEM THEREFOR

Title:

A ROTARY BLOOD PUMP AND CONTROL SYSTEM THEREFOR

Document Type and Number:

WIPO Patent Application WO2000064509

Kind Code:

B1

Abstract:

A pump assembly (1, 33, 200) adapted for continuous flow pumping of blood. In a particular form the pump (1, 200) is a centrifugal pump wherein the impeller (100, 204) is entirely sealed within the pump housing (2, 201) and is exclusively hydrodynamically suspended therein as the impeller rotates within the fluid (105) urged by electromagnetic means external to the pump cavity (106, 203). Hydrodynamic suspension is assisted by the impeller (100, 204) having deformities therein such as blades (8) with surfaces tapered from the leading edges (102, 223) to the trailing edges (103, 224) of bottom and top surfaces (221, 222) thereof. Also disclosed is an estimation and control system for the pump assembly (1, 33, 200).

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Inventors:

AYRE PETER JOSEPH (AU)
TANSLEY GEOFFREY DOUGLAS (AU)
WATTERSON PETER ANDREW (AU)
WOODARD JOHN CAMPBELL (AU)

Application Number:

PCT/AU2000/000355

Publication Date:

February 01, 2001

Filing Date:

April 20, 2000

Export Citation:

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Assignee:

VENTRASSIST PTY LTD (AU)
UNIV SYDNEY TECH (AU)
AYRE PETER JOSEPH (AU)
TANSLEY GEOFFREY DOUGLAS (AU)
WATTERSON PETER ANDREW (AU)
WOODARD JOHN CAMPBELL (AU)

International Classes:

A61M60/178; F04D29/02; A61M60/232; A61M60/422; A61M60/538; A61M60/806; A61M60/824; F04D13/02; (IPC1-7): A61M1/12

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