Reader communication with contact lens sensors and display device

• US 9,557,582 B2
• Filed: 11/10/2014
• Issued: 01/31/2017
• Est. Priority Date: 06/28/2013
• Status: Active Grant

• Current Assignee: Verily Life Sciences LLC (Alphabet Inc.)
• Original Assignee: Verily Life Sciences LLC (Alphabet Inc.)
• Inventors: Honor, Frank, Otis, Brian, Nelson, Andrew
• Primary Examiner(s): Swarthout, Brent
• Application Number:
  US14/536,856
• Publication Number:
  US 20150061837A1
• Time in Patent Office: 813 Days
• Field of Search: 340/572.1, 340/539.12, 340/5.82, 340/10.1, 340/539.1, 340/870.16, 345/8, 351/158, 351/159.4
• US Class Current: 1/1
• CPC Class Codes: A61B 2560/0219 of externally powered implanted units
• CPC Class Codes: A61B 2560/0223 of calibration, e.g. protocols for calibrating sensors
• CPC Class Codes: A61B 2562/08 Sensors provided with means for identification, e.g. barcodes or memory chips
• CPC Class Codes: A61B 3/0025 characterised by electronic signal processing, e.g. eye models
• CPC Class Codes: A61B 3/0041 characterised by display arrangements
• CPC Class Codes: A61B 3/101 for examining the tear film
• CPC Class Codes: A61B 5/0004 characterised by the type of physiological signal transmitted
• CPC Class Codes: A61B 5/0026 characterised by the transmission medium
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/1477 non-invasive
• CPC Class Codes: A61B 5/1486 using enzyme electrodes, e.g. with immobilised oxidase
• CPC Class Codes: A61B 5/1495 Calibrating or testing of in-vivo probes
• CPC Class Codes: A61B 5/6821 Eye
• CPC Class Codes: A61B 5/7445 Display arrangements, e.g. multiple display units
• CPC Class Codes: A61B 90/98 using electromagnetic means, e.g. transponders
• CPC Class Codes: G02C 11/10 Electronic devices other than hearing aids
• CPC Class Codes: G02C 7/04 Contact lenses for the eyes disinfection or sterilisation of contact lenses A61L12/00
• CPC Class Codes: G02C 7/049 Contact lenses having special fitting or structural features achieved by special materials or material structures
• CPC Class Codes: G06K 7/10158 methods and means used by the interrogation device for reliably powering the wireless record carriers using an electromagnetic interrogation field
• CPC Class Codes: G06K 7/10386 the interrogation device being of the portable or hand-handheld type, e.g. incorporated in ubiquitous hand-held devices such as PDA or mobile phone, or in the form of a portable dedicated RFID reader
• CPC Class Codes: G16H 40/63 : for local operation

Abstract

A reader for communicating with both an eye-mountable device and a display device is provided. The reader can transmit radio frequency power to a tag that is part of the eye-mountable device. The reader can communicates with the tag using a first protocol. Communicating with the tag can include having the reader request data from the tag and receive the requested data from the tag. The reader can process the received data. The reader can store the processed data. The reader can communicates with the display device using a second protocol, where the first and second protocols can differ. Communicating with the display device can include having the reader transmit the stored data to the display device. The display device can receive the transmitted data, process the transmitted data, and generate one or more displays including the transmitted and/or processed data.

Claims

1. A method, comprising:

transmitting, by a reader, radio frequency (RF) power to a sensing device, wherein the sensing device is physically separated from the reader, and wherein the sensing device includes a sensor configured to obtain measurements related to glucose in a bodily fluid;

communicating with the sensing device, by the reader, using a first wireless protocol, wherein communicating with the sensing device comprises requesting and receiving one or more measurements by the sensor;

determining first calibration data based on an identifier of the sensing device;

determining a glucose concentration in the bodily fluid based on the one or more measurements and the first calibration data, wherein determining the glucose concentration in the bodily fluid based on the one or more measurements and the first calibration data comprises determining the glucose concentration in the bodily fluid by a processing system in the reader, wherein the processing system comprises one or more processors and one or more storage components;

receiving user input from a user of the sensing device;

responsive to receiving the user input, determining second calibration data specific to the user, wherein determining second calibration data specific to the user comprises determining two different blood glucose levels for the user;

determining a blood glucose concentration based on the glucose concentration in the bodily fluid and the second calibration data; and

providing, by a user interface, an indication of the blood glucose concentration.

2. The method of claim 1, further comprising:

instructing, by the processing system, the user interface to provide the indication of the blood glucose concentration.

3. The method of claim 2, wherein the indication of the blood glucose concentration comprises at least one of a visual indication from the reader or an audio indication from the reader.

4. The method of claim 1, wherein the user interface is in a display device external to the reader.

5. The method of claim 4, wherein the indication of the blood glucose concentration comprises at least one of a textual indication or a graphical indication on a display of the display device.

6. The method of claim 4, wherein the display device is a wearable computer, handheld computer, tablet computer, or mobile phone.

7. The method of claim 4, further comprising:

transmitting data from the reader to the display device using a second wireless protocol, wherein the data relates to the glucose concentration in the bodily fluid.

8. The method of claim 7, wherein the second wireless protocol is a Bluetooth protocol.

9. The method of claim 8, wherein the first wireless protocol is a Radio-Frequency Identification (RFID) protocol.

18. The method of claim 1, wherein the sensing device is an eye-mountable device, and wherein the bodily fluid is tear fluid.

10. A non-transitory computer-readable storage medium having stored thereon program instructions that, upon execution by a processor of a computing device, cause the computing device to perform functions comprising:

transmitting radio frequency (RF) power to a sensing device, wherein the sensing device is physically separated from the computing device, and wherein the sensing device includes a sensor configured to obtain measurements related to glucose in a bodily fluid;

communicating with the sensing device using a first wireless protocol, wherein communicating with the sensing device comprises requesting and receiving one or more measurements by the sensor;

determining first calibration data based on an identifier of the sensing device;

determining a glucose concentration in the bodily fluid based on the one or more measurements and the first calibration data;

receiving user input from a user of the sensing device;

responsive to receiving the user input, determining second calibration data specific to the user, wherein determining second calibration data specific to the user comprises determining two different blood glucose levels for the user;

determining a blood glucose concentration based on the glucose concentration in the bodily fluid and the second calibration data; and

instructing a user interface to provide an indication of the blood glucose concentration.

11. The non-transitory computer-readable storage medium of claim 10, wherein the indication of the blood glucose concentration comprises at least one of a visual indication from the computing device or an audio indication from the computing device.

12. The non-transitory computer-readable storage medium of claim 10, wherein the user interface is in a display device external to the computing device.

13. The non-transitory computer-readable storage medium of claim 12, wherein the functions further comprise:

transmitting data to the display device using a second wireless protocol.

14. The non-transitory computer-readable storage medium of claim 13, wherein the first wireless protocol is a Radio-Frequency Identification (RFID) protocol and the second wireless protocol is a Bluetooth protocol.

19. The non-transitory computer-readable storage medium of claim 10, wherein the sensing device is an eye-mountable device, and wherein the bodily fluid is tear fluid.

15. A computing device, comprising:

an antenna;

a processor; and

a non-transitory computer readable medium storing instructions thereon that, when executed by the processor, cause the computing device to perform functions comprising;

transmitting radio frequency (RF) power to a sensing device using the antenna, wherein the sensing device is physically separated from the computing device, and wherein the sensing device includes a sensor configured to obtain measurements related to glucose in a bodily fluid;

communicating with the sensing device using a first wireless protocol, wherein communicating with the sensing device comprises requesting and receiving one or more measurements by the sensor;

determining first calibration data based on an identifier of the sensing device;

determining a glucose concentration in the bodily fluid based on the one or more measurements and the first calibration data;

receiving user input from a user of the sensing device;

responsive to receiving the user input, determining second calibration data specific to the user, wherein determining second calibration data specific to the user comprises determining two different blood glucose levels for the user;

determining a blood glucose concentration based on the glucose concentration in the bodily fluid and the second calibration data; and

instructing a user interface to provide an indication of the blood glucose concentration.

16. The computing device of claim 15, wherein the indication of the blood glucose concentration comprises at least one of a visual indication from the computing device or an audio indication from the computing device.

17. The computing device of claim 15, wherein the user interface is in a display device external to the computing device, and wherein the functions further comprise transmitting data to the display device using a second wireless protocol.

20. The computing device of claim 15, wherein the sensing device is an eye-mountable device, and wherein the bodily fluid is tear fluid.