# US 2009/0260985 A1 · Analyte sensor with insertion monitor, and methods

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- Number: US 2009/0260985 A1
- Document ID: US20090260985A1
- Status: Published application
- Kind: A1
- Application number: 12/437,141
- Filed: 2009-05-07
- Published: 2009-10-22
- Earliest claimed: 1999-11-04
- Assignees: Abbott Diabetes Care Inc.
- Inventors: Yi Wang; Joseph A. Vivolo; Shridhara Alva Karinka
- Web page: https://patentgrep.com/patent/US20090260985A1

## CPC

- G01N 27/3272: {Test elements therefor, i.e. disposable laminated substrates with electrodes, reagent and channels (optical biosensors G01N33/52)}
- Y10S 439/909: Medical use or attached to human body
- G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

## Abstract

A sensor, and methods of making, for determining the concentration of an analyte, such as glucose or lactate, in a biological fluid such as blood or serum, using techniques such as coulometry, amperometry, and potentiometry. The sensor includes a working electrode and a counter electrode, and can include an insertion monitoring trace to determine correct positioning of the sensor in a connector.

## Claims

### Claim at position 1

-19. (canceled)

### Claim 20

An electrochemical test sensor being adapted to determine an analyte concentration of a fluid sample, the electrochemical test sensor comprising:
a base including a first base end and an opposing second base end;
a plurality of electrodes being formed on the base at or near the first end, the plurality of electrodes including a working electrode and a counter electrode; and
at least one reagent being positioned at or near the first end so as to contact the fluid sample,
wherein the electrochemical test sensor includes a first end and an opposing second end, the test sensor having an auto-calibration area, the auto-calibration area having markings in a form of a pattern corresponding to auto-calibration information.

### Claim 21 (depends on 20)

The test sensor of claim 20, wherein the auto-calibration area is formed on the base at the opposing second base end.

### Claim 22 (depends on 20)

The test sensor of claim 20, further including a lid, the lid covering at least a portion of the base, the lid having a first lid end and an opposing second lid end.

### Claim 23 (depends on 20)

The test sensor of claim 20, wherein the markings including constant markings and variable markings.

### Claim 24

A test sensor being adapted to determine an analyte concentration of a fluid sample, the optical test sensor comprising:
a base including a first base end and an opposing second base end;
a fluid-receiving area being adapted to receive a fluid sample, the fluid-receiving area being located near or at the first base end;
at least one reagent being positioned to contact the fluid sample in the fluid-receiving area, the at least one reagent assisting in optically determining the analyte concentration of the fluid sample;
wherein the test sensor includes a first end and an opposing second end, the test sensor having an auto-calibration area, the auto-calibration area having markings in a form of a pattern corresponding to auto-calibration information.

### Claim 25 (depends on 24)

The test sensor of claim 24, wherein the auto-calibration area is formed on the base at the opposing second base end.

### Claim 26 (depends on 24)

The test sensor of claim 24, further including a lid, the lid covering at least a portion of the base, the lid having a first lid end and an opposing second lid end.

### Claim 27 (depends on 26)

The test sensor of claim 26, wherein the auto-calibration area is formed on the lid.

### Claim 28 (depends on 24)

The test sensor of claim 24, wherein the markings including constant markings and variable markings.