Title:
【発明の名称】磁気懸架されたローターを有する血液ポンプ
Document Type and Number:
Japanese Patent JP2003503639
Kind Code:
A
Abstract:
A blood pump preferably has a magnetically suspended rotor that rotates within a housing. The rotor may rotate about a stator disposed within the housing. Radial magnetic bearings may be defined within the stator and the rotor in order to suspend the rotor. The radial magnetic bearings may be passive magnetic bearings that include permanent magnets disposed within the stator and the rotor or active magnetic bearings. The pump may further include an axial magnetic bearing that may be either a passive or an active magnetic bearing. A motor that drives the rotor may be disposed within the housing in order to more easily dissipate heat generated by the motor. A primary flow path is defined between the rotor and the stator, and a secondary flow path is defined between the stator and the rotor. Preferably, a substantial majority of blood passes through the primary flow path. The secondary flow path is large enough so that it provides adequate flushing of the secondary flow path while being small enough to permit efficient operation of the radial magnet bearings across the secondary flow path.
More Like This:
| WO/2003/037965 | SLIDING MEMBER AND PUMP |
| JPS6034597 | 【考案の名称】自動車用ウォ-タポンプ |
Inventors:
Antaki, The Ames F
Payden, Bradley
Burgreen, Gregory
Groom, Nelson Theei
Payden, Bradley
Burgreen, Gregory
Groom, Nelson Theei
Application Number:
JP2001507932A
Publication Date:
January 28, 2003
Filing Date:
June 30, 2000
Export Citation:
Assignee:
University of Pittsburgh
National Aeronautics and Space Administration
National Aeronautics and Space Administration
International Classes:
F04D29/046; A61M1/10; F04D3/00; F04D3/02; F04D7/00; F04D13/02; F04D13/06; F04D29/04; F04D29/048; F16C39/06; H02K1/27; H02K7/09; H02K7/14; A61M1/12; H02K29/06; (IPC1-7): F04D13/02; A61M1/10; F04D7/00; F04D29/04
Foreign References:
| WO1997049440A2 | 1997-12-31 |
Attorney, Agent or Firm:
Heiyoshi Odashima