Centrifugal blood pump
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 19, 1997
Grant Date -
N/A
app pub date -
Jul 13, 1995
filing date -
Aug 31, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The centrifugal blood pump has a pump rotor (15) arranged inside a housing (13) which is closed with the exception of a blood outlet (15') and a blood inlet (14). The rotatable pump rotor (15) inside the housing (13) is driven by an external drive motor (10) via a magnetic coupling. The magnetic coupling is provided by thin exterior permanent magnets (21) circumferentially distributed around the rotor (15) on a coupling part (12,20) connected to the external drive motor (10) and correspondingly thin circumferentially distributed permanently magnetized ferromagnetic regions (17,18) of the pump rotor which are coupled with the permanent magnets (21) to form a magnetic field bridge (22) and thus to avoid axially directed tilting or tipping moments. The pump rotor (15) can be additionally stabilized against translational motion in the radial direction by a mechanical bearing device (24) for the rotor which is provided inside an interior space through which blood flows in the pump housing.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully