# US 8,542,122 B2 · Glucose measurement device and methods using RFID

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- Number: US 8,542,122 B2
- Document ID: US8542122B2
- Status: Granted
- Kind: B2
- Application number: 13/744,322
- Filed: 2013-01-17
- Published: 2013-05-23
- Granted: 2013-09-24
- Earliest claimed: 2005-02-08
- Assignees: Abbott Diabetes Care Inc.
- Applicants: Abbott Diabetes Care Inc.
- Inventors: Timothy T. Goodnow; Lei He
- Web page: https://patentgrep.com/patent/US8542122B2

## CPC

- A61B 5/0022: {Monitoring a patient using a global network, e.g. telephone networks, internet}
- A61B 5/0004: {characterised by the type of physiological signal transmitted}
- A61B 5/0026: {characterised by the transmission medium}
- A61B 5/14503: {invasive, e.g. introduced into the body by a catheter or needle or using implanted sensors (A61B5/1459, A61B5/1464, A61B5/1473, A61B5/1482, A61B5/14865 take precedence)}
- A61B 5/14532: {for measuring glucose, e.g. by tissue impedance measurement}
- A61B 5/1473: invasive, e.g. introduced into the body by a catheter
- A61B 5/14735: {comprising an immobilised reagent}
- A61B 5/1486: using enzyme electrodes, e.g. with immobilised oxidase
- A61B 5/1495: Calibrating or testing of in-vivo probes
- A61B 5/150358: {Strips for collecting blood, e.g. absorbent}
- A61B 5/7275: {Determining trends in physiological measurement data; Predicting development of a medical condition based on physiological measurements, e.g. determining a risk factor}
- A61B 5/7282: {Event detection, e.g. detecting unique waveforms indicative of a medical condition (cough events A61B5/0823; seizures A61B5/4094; sleep apnoea A61B5/4818)}
- A61B 5/742: {using visual displays (displays for heart-related electrical signals, e.g. ECG, A61B5/339)}
- A61B 90/90: Identification means for patients or instruments, e.g. tags
- A61B 90/98: using electromagnetic means, e.g. transponders
- G01N 33/48771: {Coding of information, e.g. calibration data, lot number}
- G06K 7/10366: {the interrogation device being adapted for miscellaneous applications}
- G08C 17/02: using a radio link
- A61B 2562/0295: Strip shaped analyte sensors for apparatus classified in A61B5/145 or A61B5/157
- A61B 2562/08: Sensors provided with means for identification, e.g. barcodes or memory chips
- A61B 2562/085: combined with means for recording calibration data
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- 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)
- G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G08C: TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS (fluid pressure transmitting systems F15B; mechanical means for transferring the output of a sensing member into a different variable G01D5/00; mechanical control systems G05G)

## Abstract

A glucose monitoring system, includes a glucose sensor strip or package of strips. The strip includes a substrate and a glucose monitoring circuit that has electrodes and a bodily fluid application portion of selected chemical composition. An antenna is integrated with the glucose sensor strip. An RFID sensor chip is coupled with the glucose sensor strip and the antenna. The chip has a memory containing digitally-encoded data representing calibration and/or expiration date information for the strip.

## Claims

### Claim 1

A glucose measurement system, comprising:
a glucose measuring device comprising a radio frequency identification (RFID) reader, electronics configured to receive one or more signals indicative of a glucose level in a sample and determine the glucose level based on the one or more signals, and a display for providing the determined glucose level;
a circuit board;
an RFID chip mounted on the circuit board;
an in vivo glucose sensor coupled to the circuit board and in signal communication with the RFID chip;
a memory for storing digitally encoded data representing a monitored glucose level detected by the in vivo glucose sensor; and
an antenna coupled to the circuit board and in signal communication with the RFID chip;
wherein the RFID reader of the glucose measuring device is configured to receive the digitally encoded data representing the monitored glucose level when the RFID chip is within a predetermined range of the RFID reader.

### Claim 2 (depends on 1)

The glucose measurement system of claim 1, wherein the glucose measuring device comprises a port for receiving a glucose test strip.

### Claim 3 (depends on 1)

The glucose measurement system of claim 1, wherein the antenna includes a loop antenna.

### Claim 4 (depends on 3)

The glucose measurement system of claim 3, wherein the loop antenna includes a conducting loop that is disposed around a perimeter of the circuit board and electrically coupled to the in vivo glucose sensor.

### Claim 5 (depends on 1)

The glucose measurement system of claim 1, wherein the display is configured to display a communication activatable when the glucose level indicates hyperglycemia.

### Claim 6 (depends on 1)

The glucose measurement system of claim 1, wherein the display is configured to display a communication activatable when the glucose level indicates hypoglycemia.

### Claim 7 (depends on 1)

The glucose measurement system of claim 1, wherein the display is configured to display a communication activatable when the glucose level indicates impending hyperglycemia.

### Claim 8 (depends on 1)

The glucose measurement system of claim 1, wherein the display is configured to display a communication activatable when the glucose level indicates impending hypoglycemia.

### Claim 9 (depends on 1)

The glucose measurement system of claim 1, wherein the glucose measurement system further comprises application software configured to determine trending of the glucose level based at least in part on the determined glucose level.

### Claim 10 (depends on 9)

The glucose measurement system of claim 9, wherein the application software is configured to communicate with the display such that visual indicators of glucose level trending are displayed to a user of the glucose measurement system.

### Claim 11 (depends on 1)

The glucose measurement system of claim 1, wherein the glucose measurement system further comprises application software configured to communicate with the display such that a visual representation of the glucose level over time is provided to a user of the glucose measurement system.

### Claim 12 (depends on 1)

The glucose measurement system of claim 1, wherein the glucose measuring device further comprises a communication unit.

### Claim 13 (depends on 12)

The glucose measurement system of claim 12, wherein the communication unit is configured to wirelessly receive data and/or application programs from a computer and/or data network.

### Claim 14 (depends on 1)

The glucose measurement system of claim 1, wherein the glucose measuring device is configured for serial port connection or USB connection to a personal computer or hand-held computing device.

### Claim 15

A glucose measurement device, comprising:
a circuit board;
an RFID chip mounted on the circuit board;
an in vivo glucose sensor coupled to the circuit board and in signal communication with the RFID chip;
a memory for storing digitally encoded data representing a monitored glucose level detected by the in vivo glucose sensor; and
an antenna coupled to the circuit board and in signal communication with the RFID chip;
wherein the RFID chip is configured to communicate data corresponding to the monitored glucose level detected by the in vivo glucose sensor in response to an interrogation signal.

### Claim 16 (depends on 15)

The glucose measurement device of claim 15, wherein the memory further stores data representing one or more of a lot information associated with the in vivo glucose sensor, a calibration code associated with the in vivo glucose sensor, or a glucose sensor expiration information.

### Claim 17 (depends on 15)

The glucose measurement device of claim 15, wherein the antenna is disposed around a perimeter of the circuit board and electrically coupled to the in vivo glucose sensor.

### Claim 18 (depends on 15)

The glucose measurement device of claim 15, wherein the glucose measurement device further comprises application software configured to determine trending of a glucose level based at least in part on the determined glucose level.

### Claim 19 (depends on 15)

The glucose measurement device of claim 15, wherein the digitally encoded data representing the monitored glucose level includes a current real time glucose level and a plurality of prior glucose level data detected by the in vivo glucose sensor and stored in the memory as digitally encoded data.

### Claim 20 (depends on 15)

The glucose measurement device of claim 15, wherein the interrogation signal is received from an RFID reader when the RFID reader is within a predetermined range of the RFID chip.
