Title:
BLOOD PUMP
Document Type and Number:
Japanese Patent JP2022093342
Kind Code:
A
Abstract:
To provide a blood pump having a small outer diameter.SOLUTION: An intravascular blood pump 1 comprises a pump casing 2 having a blood flow inlet 21 and a blood flow outlet 22, and an impeller 3 arranged in the pump casing 2 so as to be rotatable about an axis of rotation, where the impeller 3 has blades 31 sized and shaped for conveying blood from the blood flow inlet 21 to the blood flow outlet 22. The blood pump 1 further comprises a drive unit 4 for rotating the impeller 3, the drive unit 4 comprising a plurality of posts 40 arranged about the axis of rotation 10, where each of the posts 40 includes a shaft portion 41 and a head portion 42. Coil windings 47 around the posts are sequentially controllable to create a rotating magnetic field. The drive unit 4 further comprises a back plate 50 which engages ends 44 of the shaft portions 41 of the posts 40 opposite the head portions 42.SELECTED DRAWING: Figure 1
Inventors:
THORSTEN SIESS
WANG JIMPO
GERD SPANIER
WANG JIMPO
GERD SPANIER
Application Number:
JP2022055503A
Publication Date:
June 23, 2022
Filing Date:
March 30, 2022
Export Citation:
Assignee:
ABIOMED EUROPE GMBH
International Classes:
A61M60/422; A61M60/13; A61M60/237; A61M60/804; A61M60/81; A61M60/825; A61M60/857; F04D13/06; F04D29/00; F04D29/18; H02K7/14; H02K21/24
Domestic Patent References:
| JP2003052811A | 2003-02-25 |
Attorney, Agent or Firm:
Patent Corporation yki International Patent Office