Title:
INTRAVASCULAR BLOOD PUMP
Document Type and Number:
Japanese Patent JP2018057878
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To further reduce the package size of an intravascular blood pump and increase the service life of the blood pump.SOLUTION: The present invention relates to an intravascular blood pump including: a drive section (11); a catheter (14) fastened proximally of the drive section; and a pump section (12) fastened distally of the drive section. The intravascular blood pump has an electric motor (21), of which motor shaft (25) is mounted in the drive section (11) with two radial sliding bearings (27, 31) and an axial sliding bearing (40). During operation, a purge fluid is conveyed through the bearing gap of the axial sliding bearing (40) and further through the radial sliding bearing (31) at the distal end of the drive section (11). The purge fluid is highly viscous, for example 20% glucose solution.SELECTED DRAWING: Figure 2
Inventors:
GERD SPANIER
FRANK KIRCHHOFF
THORSTEN SIESS
DIRK MICHELS
FRANK KIRCHHOFF
THORSTEN SIESS
DIRK MICHELS
Application Number:
JP2017213511A
Publication Date:
April 12, 2018
Filing Date:
November 06, 2017
Export Citation:
Assignee:
ABIOMED EUROPE GMBH
International Classes:
A61M60/13; A61M60/237; A61M60/422; A61M60/824; A61M60/829; F04D7/04; F04D29/046; F04D29/047
Domestic Patent References:
| JP2010528797A | 2010-08-26 | |||
| JP2000512191A | 2000-09-19 | |||
| JP2000511455A | 2000-09-05 | |||
| JPS61500058A | 1986-01-16 | |||
| JP2011525385A | 2011-09-22 | |||
| JP2012527269A | 2012-11-08 |
Foreign References:
| US5211546A | 1993-05-18 | |||
| US4944722A | 1990-07-31 |
Attorney, Agent or Firm:
Patent Corporation yki International Patent Office