James L Knipfer

US Patent:

20100056909, Mar 4, 2010

Filed:

Nov 10, 2009

Appl. No.:

12/615534

Inventors:

Frank M. Fago - Mason OH, US
James E. Knipfer - O'fallon MO, US

Assignee:

Mallinckrodt Inc. - Hazelwood MO

International Classification:

A61B 6/00

US Classification:

600432

Abstract:

The present invention is directed to control of medical fluid injection systems. For instance, in some embodiments, an injection protocol may be initiated, and an actual flow rate of the medical fluid utilized in the injection protocol may be adjusted based, at least in part, on an inherent system elasticity of the injection system.

US Patent:

20080068011, Mar 20, 2008

Filed:

Nov 12, 2007

Appl. No.:

11/938553

Inventors:

Peter Staats - Loveland OH, US
James Knipfer - Ft. Wright KY, US

Assignee:

LIEBEL-FLARSHEIM COMPANY - Cincinnati OH

International Classification:

G01V 3/08

US Classification:

324300000

Abstract:

A method of operation for a magnetic resonance imaging suite. A power supply of magnetic resonance injector system receives electrical power from an AC power outlet, both of which are located outside of a shielded room of the magnetic resonance imaging suite. Electrical power from the power supply of the magnetic resonance injector system is conveyed (via an appropriate power connection) into the shielded room of the magnetic resonance imaging suite and to a component (e.g., a power head) of the magnetic resonance injector system located inside the shielded room. While this electrical power is being conveyed, radio frequency energy emitted from the power connection is being filtered.

US Patent:

20050027238, Feb 3, 2005

Filed:

Aug 23, 2004

Appl. No.:

10/924302

Inventors:

Frank Fago - Mason OH, US
James Knipfer - Ft. Wright KY, US
Charles Neer - Cincinnati OH, US

Assignee:

Mallinckrodt Inc. - St. Louis MO

International Classification:

A61M031/00

US Classification:

604067000

Abstract:

A hand-held remote for a medical fluid injector includes a syringe and a conduit which may be coupled to a pressure transducer on a control circuit of the injector. Movement of a plunger within a syringe body on the syringe creates a pressure which is sensed by the pressure transducer and the control circuit responds to the sensed pressure by causing fluid to be ejected from, or drawn into, a syringe mounted to the injector. The pressure developed by the remote provides tactile feedback to an operator for improved control over injections.