Title:
【発明の名称】使い捨てロータアセンブリィ付き血液ポンプ
Document Type and Number:
Japanese Patent JPH08508803
Kind Code:
A
Abstract:
A centrifugal blood pump features a pump assembly including a cylindrical barrel insertable into a motor stator. The barrel contains a motor rotor which is directly coupled to the pump's impeller. The barrel can be oriented and locked in the motor stator in many different angular orientations. Hemolysis is prevented in spite of high speed operation by reducing the clearance between the impeller and the impeller chamber, rounding the edges of the impeller blades, and providing a deflector to prevent blood from being impelled more than once around the impeller chamber periphery. An efficient releasable locking mechanism is also disclosed, as is a preferred method of assembling the pump assembly with close tolerances.
Inventors:
Maher, Timothy, Earl.
Le Blanc, Peter, W., Jay., Cee.
Taylor, Lynn, Pee.
Le Blanc, Peter, W., Jay., Cee.
Taylor, Lynn, Pee.
Application Number:
JP51713294A
Publication Date:
September 17, 1996
Filing Date:
January 21, 1994
Export Citation:
Assignee:
Nimbus Incorporated
International Classes:
A61M60/113; A61M60/232; A61M60/422; F04D29/043; A61M60/806; A61M60/814; A61M60/825; A61M60/849; F04D13/06; F04D25/02; F04D29/24; F04D29/44; F04D29/62; (IPC1-7): F04D29/04; A61M1/10; F04D25/02
Attorney, Agent or Firm:
Yoshikazu Tani (1 person outside)