Ellen Catherine Anderson

US Patent:

7120483, Oct 10, 2006

Filed:

Oct 27, 2003

Appl. No.:

10/694264

Inventors:

Geoffrey A. Russell - Beaverton OR, US
W. Kenneth Ward - Portland OR, US
Ellen M. Anderson - Tualatin OR, US
Jonathan D. Birck - Portland OR, US

Assignee:

iSense Corporation - Portland OR

International Classification:

A61B 5/05
A61B 5/00

US Classification:

600345, 600347, 600365

Abstract:

A method of measuring an analyte concentration in body fluid. The method includes the use of an analyte measuring device that has an analyte sensing element with a sharpened distal end and further has an indicating electrode covered by an absorbent layer. Also, an electric power, data processing and display device is adapted to mate to and activate the analyte sensing element by applying electric power to it and adapted to receive the raw analyte measurement and to compute and display a refined analyte measurement from the raw analyte measurement. The analyte sensing element is introduced into the animal body, thereby placing the absorbent layer into contact with the body fluid. The absorbent layer becomes saturated with body fluid and the analyte sensing element is removed from the body and is activated to form a raw analyte measurement. Which is used to form and display a refined analyte measurement.

US Patent:

7228162, Jun 5, 2007

Filed:

Jan 13, 2003

Appl. No.:

10/342144

Inventors:

W. Kenneth Ward - Portland OR, US
Richard G. Sass - Portland OR, US
Ellen Anderson - Tualatin OR, US
Lawrence B. Jansen - Portland OR, US

Assignee:

iSense Corporation - Portland OR

International Classification:

A61B 5/05
A61B 5/00

US Classification:

600345, 600347, 600365, 20440301

Abstract:

A method of measuring an analyte concentration in body fluid in an animal body having skin and subcutaneous soft tissue that includes body fluid. The method comprises, introducing a portion of an analyte-measuring device into the subcutaneous soft tissue. The analyte-measuring device includes an analyte sensing element, having a sharpened distal end to facilitate introduction into the animal body. Additionally the sensing element has an indicating electrode that is adapted to be activated by electric power and to form a raw analyte measurement, when it is activated and in contact with the body fluid, in less than two minutes. The sensing device further has a reference electrode and an electric power and display device that is adapted to mate to the analyte-sensing element. The power and display device activates the analyte-sensing element by applying electric power to it. The analyte-sensing element is introduced into the animal body and is activated by the electric power and display device, thereby causing the analyte-sensing element to form a raw analyte measurement.

US Patent:

7529574, May 5, 2009

Filed:

Aug 14, 2003

Appl. No.:

10/640980

Inventors:

Lawrence B. Jansen - Portland OR, US
W. Kenneth Ward - Portland OR, US
Ellen Anderson - Tualatin OR, US

Assignee:

iSense Corporation - Wilsonville OR

International Classification:

A61B 5/00

US Classification:

600345, 600347, 600365

Abstract:

A method of creating an analyte sensor. The method starts with the step of providing an electrochemically active surface. Then, at least one nub made of dielectric material and extending transversely outwardly from the electrochemically active surface is created. A curable liquid is applied to the electrochemically active surface and the nub and is then cured. In this process, the nub, which could be one of several nubs, serves to support the liquid before and during the curing.

US Patent:

20020169369, Nov 14, 2002

Filed:

May 8, 2001

Appl. No.:

09/851668

Inventors:

W. Ward - Portland OR, US
Lawrence Jansen - Portland OR, US
Ellen Anderson - Tualatin OR, US

International Classification:

A61B005/05
A61L002/00
B05D003/00

US Classification:

600/347000, 600/345000, 600/365000, 427/002110

Abstract:

An insertable analyte needle sensor, comprising a set of fine wires positioned together and a dielectric material covering a substantial portion of the fine wires but defining an opening filled with at least one partially permeable membrane. The wires may be treated with a gas plasma to facilitate membrane adherence. One membrane layer may comprise sulphonated polyethersulphone coated with silane.

US Patent:

20040138544, Jul 15, 2004

Filed:

Feb 27, 2003

Appl. No.:

10/375891

Inventors:

W. Ward - Portland OR, US
Richard Sass - Portland OR, US
Mark Neinast - Gastonia NC, US
Ellen Anderson - Tualatin OR, US
Lawrence Jansen - Portland OR, US

International Classification:

A61B005/05

US Classification:

600/348000

Abstract:

A rapid response, single use analyte sensor, adapted to measure an analyte concentration in body fluid. The sensor includes a lancet and a body fluid trapping structure, adapted to trap body fluid on the skin. An electrochemical analyte measurement system measures the analyte concentration in the body fluid that is trapped on the surface of the skin, by the body fluid trapping structure. In one preferred embodiment, the body fluid trapping structure defines an interior volume of only 30 nanoliters of body fluid.