Title:
【発明の名称】無シールロトダイナミックポンプ
Document Type and Number:
Japanese Patent JP3207858
Kind Code:
B2
Abstract:
A sealless centrifugal blood pump (10) is provided in which a rotatable impeller (64) is supported in a pump housing (12) by fluid bearings (30, 182) during operation. Rotational movement of the impeller (64) is accomplished with an inverted motor (38) for magnetically driving of the impeller (64) and maintenance of the axial running position of the impeller (64) relative to the housing (12). In an alternative embodiment, the axis of the rotor housing (18) is radially displaced relative to the axes of drive element (126) of the motor and the motor housing (130).
Inventors:
Golding, Leonard A. Earl.
Smith, William A.
Wade, Warren F.
Smith, William A.
Wade, Warren F.
Application Number:
JP50993794A
Publication Date:
September 10, 2001
Filing Date:
October 19, 1992
Export Citation:
Assignee:
The Cleveland ClinicFoundation
International Classes:
A61M60/178; A61M60/221; A61M60/419; F04D3/00; A61M60/422; A61M60/806; A61M60/824; F04B17/00; F04B19/12; F04D1/04; F04D13/06; H02K5/16; H02K7/09; (IPC1-7): F04D3/00; A61M1/10
Domestic Patent References:
| JP4224760A | ||||
| JP62114190U |
Other References:
【文献】米国特許5049134(US,A)
【文献】米国特許4688998(US,A)
【文献】米国特許4812108(US,A)
【文献】米国特許5036235(US,A)
【文献】米国特許4688998(US,A)
【文献】米国特許4812108(US,A)
【文献】米国特許5036235(US,A)
Attorney, Agent or Firm:
Takenaga Kawakita