Norman M Tepley

US Patent:

53057511, Apr 26, 1994

Filed:

Jun 4, 1992

Appl. No.:

7/893503

Inventors:

Michael Chopp - Southfield MI
John Moran - Dearborn MI
Norman Tepley - Bloomfield Hills MI

Assignee:

Biomagnetic Technologies, Inc. - San Diego CA

International Classification:

A61B 5026

US Classification:

128654

Abstract:

A method of measuring liquid flows in a living organism comprises the steps of applying an applied magnetic field to a living organism, introducing a time-varying quantity of a magnetizable fluid into a flow of liquid in the living organism, and measuring the variation in an induced magnetic field emanating from the living organism as a measure of the flow of the magnetizable fluid and the liquid within the living organism. The measurement of the induced magnetic field is preferably accomplished with at least two magnetic field sensors positioned at different locations relative to the living organism, whose outputs are detected with SQUID detectors. A cross correlation of the outputs of the magnetic field sensors permits the flow of liquid to be deduced as a function of time and location.

US Patent:

57946221, Aug 18, 1998

Filed:

May 24, 1996

Appl. No.:

8/653101

Inventors:

Micheal Chopp - Southfield MI
John Moran - Dearborn MI
Norman Tepley - Bloomfield Hills MI

Assignee:

Biomagnetic Technologies, Inc. - San Diego CA

International Classification:

A61B 5026

US Classification:

128654

Abstract:

A method of measuring liquid flows in a living organism comprises the steps of applying an applied magnetic field to a living organism, introducing a time-varying quantity of a magnetizable fluid into a flow of liquid in the living organism, and measuring the variation in an induced magnetic field emanating from the living organism as a measure of the flow of the magnetizable fluid and the liquid within the living organism. The measurement of the induced magnetic field is preferably accomplished with at least two magnetic field sensors positioned at different locations relative to the living organism, whose outputs are detected with SQUID detectors. A cross correlation of the outputs of the magnetic field sensors permits the flow of liquid to be deduced as a function of time and location.