# US 10,864,111 B2 · Technique for therapeutic contact lens systems

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- Number: US 10,864,111 B2
- Document ID: US10864111B2
- Status: Granted
- Kind: B2
- Application number: 15/463,471
- Filed: 2017-03-20
- Published: 2017-09-28
- Granted: 2020-12-15
- Earliest claimed: 2016-03-22
- Assignees: Purdue Research Foundation
- Applicants: Purdue Research Foundation
- Inventors: Chi Hwan Lee
- Web page: https://patentgrep.com/patent/US10864111B2

## CPC

- B29D 11/00807: {Producing lenses combined with electronics, e.g. chips}
- A61F 7/00: Heating or cooling appliances for medical or therapeutic treatment of the human body (hyperthermia using electric or magnetic fields or ultrasound A61N)
- A61F 7/007: {characterised by electric heating}
- B29D 11/00038: {Production of contact lenses}
- H02J 50/001: {Energy harvesting or scavenging}
- H02J 50/10: using inductive coupling
- A61F 2007/0004: {Eyes or part of the face surrounding the eyes}
- A61F 2007/0071: {using a resistor, e.g. near the spot to be heated}
- A61F 2007/0086: {with a thermostat}
- A61F 2007/0095: {with a temperature indicator}
- H02J 2105/46: Medical devices, medical implants or life supporting devices
- H04B 5/79: for data transfer in combination with power transfer
- B29D: PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE (making granules B29B9/00; making preforms B29B11/00)
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H04B: TRANSMISSION

## Abstract

The invention relates to electronic contact lens systems, methods for fabrication thereof, and uses thereof for treatment of ophthalmic diseases and conditions, for example, meibomian gland dysfunction.

## Claims

### Claim 1

An electronic contact lens comprising a heating element, a sensing element, a wireless power supplier, and a transparent supporting/encapsulating layer, wherein said heating element is an independently, wirelessly addressable Joule heating resistor, wherein said sensing element is pn-doped silicon nanomembranes, and wherein said wireless power supplier is an inductive coupled receiver coil connected to the heating element.

### Claim 2 (depends on 1)

The electronic contact lens of claim 1, wherein said heating element is transparent and flexible conductors and wherein the heating element is located in the center areas of the contact lens.

### Claim 3 (depends on 2)

The electronic contact lens of claim 2, wherein said conductors are metallic nanowires.

### Claim 4 (depends on 1)

The electronic contact lens of claim 1, wherein said sensing element is evenly distributed over the entire areas of the contact lens.

### Claim 5 (depends on 1)

The electronic contact lens of claim 1, wherein said inductive coil comprises a thin conducting film and wherein the inductive coil is located at the peripheral areas of the contact lens in a circular path.

### Claim 6 (depends on 5)

The electronic contact lens of claim 5, wherein said inductive coil is a magnetic inductive coupling coil or an inductive charging coil.

### Claim 7 (depends on 1)

A method of using the electronic contact lens of claim 1, the method comprising a step of activating the electronic contact lens at a time by exploiting an electromagnetic field generator in a handheld hardware, wherein said activating triggers the heating element to generate heat consistently at a temperature during a prescribed treatment time.

### Claim 8 (depends on 1)

A kit for treating an ophthalmic disease or condition in a subject, the kit comprising an electronic contact lens of claim 1 and a portable hardware unit, wherein said portable hardware unit comprises an electromagnetic field generator that can trigger the heating element of the electronic contact lens to generate heat at a temperature.

### Claim 9 (depends on 1)

A method for treating an ophthalmic disease or condition in a subject, the method comprising placing an electronic contact lens of claim 1 over the eye of the subject in need thereof, followed by activating the electronic contact lens at a prescribed treatment time.

### Claim 10 (depends on 9)

The method of claim 9, wherein said ophthalmic disease or condition is meibomian gland dysfunction.