Title:
AEROSTATIC ROTOR BEARING
Document Type and Number:
WIPO Patent Application WO2002089671
Kind Code:
A3
Abstract:
A CT scanner (10) for obtaining an image of a subject includes a stationary gantry (12), and a rotating gantry (14) rotatably supported on the stationary gantry (12) for rotation about the subject. A fluid bearing is interposed between the stationary gantry (12) and the rotating gantry (14) by means of radial and axial fluid bearing pads, (100) and (102) respectively. The fluid bearing provides a fluid barrier which separates the rotating gantry (14) from the stationary gantry (12). In a preferred embodiment, the fluid bearing provides for quieter CT scanner operation at high rotational speeds. Moreover, eliminating the physical contact between the gantries minimizes wear and optimizes longevity.
Inventors:
SHARPLESS RONALD B
BRUNNETT WILLIAM C
BRUNNETT WILLIAM C
Application Number:
PCT/US2002/018556
Publication Date:
March 27, 2003
Filing Date:
May 08, 2002
Export Citation:
Assignee:
KONINKL PHILIPS ELECTRONICS NV (NL)
PHILIPS MED SYST INC (US)
PHILIPS MED SYST INC (US)
International Classes:
F16C32/06; A61B6/03; G01N23/04; (IPC1-7): A61B6/03
Foreign References:
| EP1095620A1 | 2001-05-02 |
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