US 6,973,706 B2Granted

Method of making a transcutaneous electrochemical sensor

AssigneeTheraSense, Inc.

InventorsJames Say, Michael F. Tomasco, Adam Heller, Yoram Gal, Behrad Aria, Ephraim Heller, Phillip John Plante, Mark S. Vreeke

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Abstract

A process for the manufacture of small sensors with reproducible surfaces, including electrochemical sensors. One process includes fanning channels in the surface of a substrate and disposing a conductive material in the channels to form an electrode. The conductive material can also be formed on the substrate by other impact and non-impact methods. In a preferred embodiment, the method includes cutting the substrate to form a sensor having a connector portion and a transcutaneous portion, the two portions having edges that define one continuous straight line.

Claims12

Dependent claims

A method of making a transcutaneous electrochemical sensor, the method comprising the steps of:

providing a substrate having a sensor planform, the sensor planform having a connector portion and a transcutaneous portion, the transcutaneous portion being adjacent to the connector portion and extending therefrom;
applying at least one contact pad to the connector portion;
applying at least one conductive trace to the transcutaneous portion and the connector portion such that the at least one conductive trace electrically communicates with the at least one contact pad;
and
removing the sensor planform of the substrate by cutting through the substrate to form a removed sensor, wherein the connector portion of the removed sensor has first and second opposite edges and the transcutaneous portion has third and fourth opposite edges, wherein the first and third edges together form a continuous straight edge, and wherein the second and fourth edges do not form a continuous straight edge.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/405,765Filed 31 Mar 2003 · continuation
Priority: 4 Mar 1998
Published: US 2003/0188427 A19 Oct 2003
Granted: 13 Dec 2005
Term ends: Not estimatedThe source records don’t support an estimate.

Classification25 codes

A61B 5/14735
Invasive, e.g. introduced into the body by a catheter: comprising an immobilised reagent
A61B 5/14532
Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g.…: for…
A61B 5/14865
Using enzyme electrodes, e.g. with immobilised oxidase: invasive, e.g. introduced into the body by a catheter or needle or using implanted sensors
C12Q 1/001
Measuring or testing processes involving enzymes, nucleic acids or microorganisms ; Compositions therefor; Processes of preparing such…

Family

Application09/034,422Parent of this continuation · filed 4 Mar 1998
Application09/598,776Parent of this continuation · filed 16 Jun 2000
US 2003/0188427 A1Pre-grant publication · published 9 Oct 2003
US 6,103,033 AParent of this continuation
US 6,973,706 B2This patent

From the US filing history. Foreign family members aren’t listed.