Smart contact lens with antenna and sensor

Patent metadata

Field	Value
Publication number	US-11143885-B2
Application number	US-201816136030-A
Country	US
Kind code	B2
Filing date	Sep 19, 2018
Priority date	Sep 25, 2017
Publication date	Oct 12, 2021
Grant date	Oct 12, 2021

Abstract

An ophthalmic device includes an enclosure, an antenna, a sensor system, and a first conductive trace. The ophthalmic device is configured to mount on or in an eye of a user and includes a central region surrounded by a peripheral region. The antenna is disposed within the peripheral region between an outer edge of the ophthalmic device and the central region. The sensor system includes a sensor trace disposed within the peripheral region between the antenna and the central region. The first conductive trace is at least partially disposed between at least one of the antenna and the sensor trace or the central region and the sensor trace.

First claim

What is claimed is:

1. An ophthalmic device, comprising:
an enclosure configured to mount on or in an eye of a user;
a central region surrounded by a peripheral region;
an antenna disposed within the peripheral region, wherein the antenna is disposed between an outer edge of the ophthalmic device and the central region;
a sensor system including a sensor trace disposed within the peripheral region between the antenna and the central region; and
a first conductive trace and a second conductive trace, wherein the first conductive trace is at least partially disposed between the antenna and the sensor trace, and wherein the first conductive trace and the second conductive trace each extend along opposite sides of the sensor trace to inhibit electromagnetic coupling between the antenna and the sensor system.

2. The ophthalmic device of claim 1 , wherein the second conductive trace is disposed between the central region and the sensor trace.

3. The ophthalmic device of claim 1 , further comprising:
a first electronic component disposed within the peripheral region at a first position; and
a second electronic component coupled to the first electronic component via the first conductive trace and the second conductive trace, wherein the second electronic component is disposed within the peripheral region at a second position.

4. The ophthalmic device of claim 3 , wherein the central region is disposed between the first position and the second position such that the first electronic component and the second electronic component are positioned along a common diameter line of the ophthalmic device, and wherein the first conductive trace and the second conductive trace extend up to half way around the central region.

5. The ophthalmic device of claim 3 , wherein the first position and the second position are disposed within a first quadrant of the ophthalmic device, wherein the first conductive trace and the second conductive trace extend more than half way around the central region.

6. The ophthalmic device of claim 3 , wherein the first position and the second position are arranged symmetrically within the peripheral region to provide an even weight distribution of the first electronic component and the second electronic component.

7. The ophthalmic device of claim 3 , wherein the first electronic component is a controller including logic that when executed performs operations including:
determining a gaze direction of the eye of the user based on measurements from the sensor system, and wherein the second electronic component is a battery to provide power to the controller.

8. The ophthalmic device of claim 7 , wherein the sensor system includes sensors disposed along and electrically coupled to the sensor trace, wherein the sensors include at least one of a capacitive type position sensor, an inductive type position sensor, or a photodetector to generate the measurements.

9. The ophthalmic device of claim 7 , wherein the sensor trace is a position sensor that is coupled to the controller.

10. The ophthalmic device of claim 9 , wherein the sensor trace is configured as a single loop inductor that resonates with a capacitor included in the controller for position sensing.

11. The ophthalmic device of claim 7 , wherein the battery is disposed in the peripheral region between the antenna and the central region.

12. The ophthalmic device of claim 7 , wherein the antenna is coupled to the controller to provide at least one of wireless communication for the ophthalmic device or inductive charging of the battery.

13. The ophthalmic device of claim 1 , further comprising a first electronic component having a first side and a second side opposite the first side, wherein the first electronic component is disposed within the peripheral region, and wherein the antenna, the sensor trace, and the first conductive trace extend from the first side of the first electronic component within the peripheral region to the second side of the first electronic component to surround the central region.

14. The ophthalmic device of claim 1 , further comprising:
a substrate disposed within the peripheral region, wherein the antenna, the sensor trace, and the first conductive trace are disposed on the substrate to share a common plane.

15. A system for a smart contact lens, the system comprising:
a central region surrounded by a peripheral region;
an antenna disposed within the peripheral region proximate to an outer edge of the smart contact lens;
a sensor trace disposed within the peripheral region, wherein the sensor trace is at least partially encircled by the antenna; and
a first conductive trace and a second conductive trace that each extend along opposite sides of the sensor trace to inhibit electromagnetic coupling between the antenna and the sensor trace, wherein the second conductive trace is disposed between the central region and the sensor trace, and wherein the first conductive trace is disposed between the sensor trace and the antenna.

16. The system of claim 15 , wherein the first conductive trace and the second conductive trace are disposed within the peripheral region and extend substantially parallel to a first segment of the sensor trace.

17. The system of claim 15 , further comprising:
a first electronic component disposed within the peripheral region at a first position; and
a second electronic component coupled to the first electronic component via the first conductive trace and the second conductive trace, wherein the second electronic component is disposed within the peripheral region at a second position.

18. The system of claim 17 , wherein the central region is disposed between the first position and the second position such that the first electronic component and the second electronic component are positioned along a common diameter line of the smart contact lens, and wherein the first conductive trace and the second conductive trace extend approximately half way around the central region.

19. The system of claim 15 , further comprising an accommodation actuator disposed within the central region, wherein the accommodation actuator includes a liquid crystal material at least partially surrounded by the first conductive trace and the second conductive trace.

20. An ophthalmic device, comprising:
an enclosure configured to mount on or in an eye of a user;
a central region surrounded by a peripheral region;
an antenna disposed within the peripheral region, wherein the antenna is disposed between an outer edge of the ophthalmic device and the central region;
a sensor system including a sensor trace disposed within the peripheral region between the antenna and the central region; and
a first conductive trace positioned to repeatedly coil around the sensor trace to inhibit electromagnetic coupling between the antenna and the sensor system.

21. An ophthalmic device, comprising:
an enclosure configured to mount on or in an eye of a user;
a central region surrounded by a peripheral region;
an antenna disposed within the peripheral region, wherein the antenna is disposed between an outer edge of the ophthalmic device and the central region;
a sensor system including a sensor trace disposed within the peripheral region between the antenna and the central region;
a first conductive trace and a second conductive trace extending along opposite sides of the sensor trace, wherein the first conductive trace is disposed between the antenna and the sensor trace;
a first electronic component dispo

Assignees

• Verily Life Sciences Llc

Inventors

• Jow Uei-Ming
• Gutierrez Christian
• Lee Shungneng

Classifications

• A61B5/686 Primary

  Permanently implanted devices, e.g. pacemakers, other stimulators, biochips (A61B5/6861 takes precedence) · CPC title

• A61B2560/0219

  of externally powered implanted units · CPC title

• A61B5/6867

  specially adapted to be attached or implanted in a specific body part (A61B5/6847 takes precedence) · CPC title

• A61B5/002

  Monitoring the patient using a local or closed circuit, e.g. in a room or building (A61B5/0017 takes precedence) · CPC title

• A61B2560/0468

  Built-in electrodes · CPC title