Methods and systems for determining a viscosity of a fluid

Details Methods and systems for determining a viscosity of a fluid Methods and systems for determining a viscosity of a fluid

2005-05-26

2009-08-25

Getzow, Scott M (Department: 3762)

Surgery

Cardiac augmentation

C623S003100, C417S420000, C415S900000

Reexamination Certificate

active

07578782

ABSTRACT:
Methods for determining a viscosity of a fluid passing through a fluid pump are disclosed. An amount of energy associated with axially moving a rotor may be determined and correlated to a viscosity of fluid interacting therewith. For example, energy associated with a response of a suspended rotor may be determined. The amount of energy may be correlated with a viscosity of the fluid interacting with the rotor. The rotor may be initially unsuspended and an amount of energy associated with suspending the rotor may be determined and correlated with a viscosity of fluid interacting with the rotor. In another method, subsequent to suspending a rotor, the rotor may be unsuspended and an energy response of the rotor may be quantified to determine a viscosity of fluid passing through the pump. Systems for determining a viscosity of a fluid are also disclosed.

REFERENCES:
patent: 4517830 (1985-05-01), Gunn et al.
patent: 4554821 (1985-11-01), Kiesewetter et al.
patent: 5576306 (1996-11-01), Dressman et al.
patent: 5629209 (1997-05-01), Braun, Sr. et al.
patent: 5725357 (1998-03-01), Nakazeki et al.
patent: 5789393 (1998-08-01), Dressman et al.
patent: 5792660 (1998-08-01), Spillert et al.
patent: 5798454 (1998-08-01), Nakazeki et al.
patent: 5925043 (1999-07-01), Kumar et al.
patent: 5968542 (1999-10-01), Tipton
patent: 5979229 (1999-11-01), Barnikol
patent: 6019735 (2000-02-01), Kensey et al.
patent: 6074180 (2000-06-01), Khanwilkar et al.
patent: 6142752 (2000-11-01), Akamatsu et al.
patent: 6152888 (2000-11-01), Kensey et al.
patent: 6238719 (2001-05-01), Fox
patent: 6261244 (2001-07-01), Kensey et al.
patent: 6270831 (2001-08-01), Kumar et al.
patent: 6322525 (2001-11-01), Kensey et al.
patent: 6394769 (2002-05-01), Bearnson et al.
patent: 6443911 (2002-09-01), Kensey et al.
patent: 6450974 (2002-09-01), Kim et al.
patent: 6595762 (2003-07-01), Khanwilkar et al.
patent: 6659965 (2003-12-01), Kensey et al.
patent: 6692437 (2004-02-01), Kensey et al.
patent: 6709390 (2004-03-01), Marie Pop
patent: 6711943 (2004-03-01), Schöb
patent: 6733769 (2004-05-01), Ryan et al.
patent: 6796168 (2004-09-01), Goldstein et al.
patent: 6805125 (2004-10-01), Crump et al.
patent: 6805674 (2004-10-01), Kensey et al.
patent: 6879126 (2005-04-01), Paden et al.

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