Title:
回転式血液ポンプ
Document Type and Number:
Japanese Patent JP4832391
Kind Code:
B2
Abstract:
Various "contactless" bearing mechanisms including hydrodynamic and magnetic bearings are provided for a rotary pump as alternatives to mechanical contact bearings. In one embodiment, a pump apparatus includes a pump housing (110) defining a pumping chamber (112). The housing has a spindle (130) extending into the pumping chamber. A spindle magnet assembly (160) includes first and second magnets (262, 264) disposed within the spindle. The first and second magnets are arranged proximate each other with their respective magnetic vectors opposing each other. The lack of mechanical contact bearings enables longer life pump operation and less damage to working fluids such as blood.
Inventors:
Richard Onepler
David Lanchisi
David Lanchisi
Application Number:
JP2007242976A
Publication Date:
December 07, 2011
Filing Date:
September 19, 2007
Export Citation:
Assignee:
Solartech Corporation
International Classes:
F04D13/02; F04F99/00; A61M60/232; A61M60/422; A61M60/81; A61M60/822; A61M60/824; F04B17/00; F04B17/03; F04B35/04
Domestic Patent References:
| JP2002130177A |
Attorney, Agent or Firm:
Hidesaku Yamamoto
Takaaki Yasumura
Natsuki Morishita
Kuro Fukami
Takaaki Yasumura
Natsuki Morishita
Kuro Fukami