DOUGLAS FOX TOMLINSON
Pilots at Lavin Way, Westport, WI

2009011, May 7, 2009

Oct 31, 2008

12/262925

Douglas F. Tomlinson - Waunakee WI, US

G01R 27/08, G01N 31/00

324698, 702 25

Disclosed herein is a hand-held impedance spectroscopy analysis device for analyzing fluids wherein the impedance spectroscopy device is in communication with a sample cell including a reservoir containing a fluid sample, the sample cell including a sample cell circuit and two metal plates in contact with the fluid sample and in contact with a pair of electrodes. The analysis device includes a processing system including a main processor which is responsive to commands from a user input device, and a data acquisition circuit which receives power and command signals from the processing system. The data acquisition circuit is operable to transmit excitation signals to the electrodes, wherein the excitation signals are applied at each frequency in a predetermnined set of frequencies, and the data acquisition circuit is further operable to receive response signals from the electrodes indicative of the fluid sample at each frequency in the predetermined set of frequencies and to convert the response signals into a magnitude and phase angle data set. The main processor is operable to receive the magnitude and phase angle data set from the data acquisition circuit and to receive at least one of calibration information and temperature information from the sample cell circuit and perform an impedance spectroscopy algorithm using the magnitude and phase angle data set and the information from the sample cell circuit to determine a fluid property.

7519413, Apr 14, 2009

Mar 11, 2004

10/798100

G. Ronald Morris - Belle Terre NY, US
Janan A. Hiz - Nesconset NY, US
Douglas F. Tomlinson - Waunakee WI, US

S.A. Instruments, Inc. - Stony Brook NY

A61B 5/05, A61B 5/04

600411, 600509, 600413

The present invention is an apparatus for measuring motion of a portion of the body of a patient and, optionally, electrocardiogram, of a patient in a magnetic field. A pickup coil in the form of a loop positioned around the portion of interest of the body of the patient is formed either by a wire connected to a voltage measuring device or an ECG lead having one end connected to the voltage measuring device and the other end connected to an electrode on the patient. A cradle may be positioned between the loop and the patient to facilitate pickup of the movement of the patient. When the ECG lead is used, a second ECG lead is connected between the voltage measuring device and a second electrode on the patient. The output of the voltage measuring device represents the respiration of the patient, and the electrocardiogram when ECG leads are used.

2009011, May 7, 2009

Oct 31, 2008

12/263064

Richard W. Hirthe - Milwaukee WI, US
Robert P. Adikes - Whitefish Bay WI, US
Michael M. Bohacheck - Belgium WI, US
Douglas F. Tomlinson - Waunakee WI, US
Martin A. Seitz - Brookfield WI, US

G01R 27/08

324693

Disclosed herein is a sample cell for use in conjunction with an impedance spectroscopy analysis device having two electrodes extending therefrom. The sample cell is attachable to and detachable from the analysis device and includes a housing having an input port for receiving a fluid sample to be tested. The sample cell also includes two spaced apart parallel plates within the housing and in contact with the fluid sample, wherein when the sample cell is attached to the analysis device, each of the two electrodes contacts a respective one of the plates such that an excitation signal can be provided from the analysis device via the electrodes and the plates to excite the fluid sample, and a response signal indicative of the fluid sample can be communicated via the plates and the electrodes to the analysis device.