# US 11,076,946 B2 · Flexible barrier layer including superelastic alloys

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 11,076,946 B2
- Document ID: US11076946B2
- Status: Granted
- Kind: B2
- Application number: 16/176,884
- Filed: 2018-10-31
- Published: 2019-05-16
- Granted: 2021-08-03
- Earliest claimed: 2017-11-16
- Assignees: Verily Life Sciences LLC
- Applicants: Verily Life Sciences LLC
- Inventors: Stein Kuiper; Daniel B. Otts
- Web page: https://patentgrep.com/patent/US11076946B2

## CPC

- A61F 2/1624: {having adjustable focus; power activated variable focus means, e.g. mechanically or electrically by the ciliary muscle or from the outside}
- A61F 2/1627: {for changing index of refraction, e.g. by external means or by tilting}
- A61F 2/1648: {Multipart lenses}
- B29D 11/00807: {Producing lenses combined with electronics, e.g. chips}
- G02C 7/081: {Ophthalmic lenses with variable focal length}
- A61F 2002/1681: {having supporting structure for lens, e.g. haptics}
- A61F 2210/0014: using shape memory or superelastic materials, e.g. nitinol
- A61F 2210/0076: multilayered, e.g. laminated structures
- A61F 2250/0001: Means for transferring electromagnetic energy to implants
- A61F 2250/0002: for data transfer
- A61F 2250/0043: differing in electric properties, e.g. in electrical conductivity, in galvanic properties
- B32B 2307/726: Permeability to liquids, absorption
- G02C 2202/16: Laminated or compound lenses
- 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)
- B29D: PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE (making granules B29B9/00; making preforms B29B11/00)
- G02C: SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES (trial frames for testing the eyes A61B3/04; goggles or eyeshields not having the same features as spectacles A61F9/00)
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM

## Abstract

An ophthalmic apparatus includes a support structure; a substrate included with the support structure; at least one conductor disposed on the substrate; and a hermetic barrier structure disposed over the at least one conductor. The hermetic barrier structure further includes a stack of alternating flexible insulating material and superelastic metal alloy layers.

## Claims

### Claim 1

An ophthalmic apparatus comprising:
a support structure;
a substrate included with the support structure;
at least one conductor disposed on the substrate; and
a hermetic barrier structure disposed over the at least one conductor, the hermetic barrier structure including a stack of alternating flexible insulating material and superelastic metal alloy layers.

### Claim 2 (depends on 1)

The ophthalmic apparatus of claim 1, wherein the substrate is embedded in the support structure.

### Claim 3 (depends on 1)

The ophthalmic apparatus of claim 1, wherein the substrate is disposed on a surface of the support structure.

### Claim 4 (depends on 1)

The ophthalmic apparatus of claim 1, wherein the at least one conductor is formed from a superelastic metal alloy.

### Claim 5 (depends on 1)

The ophthalmic apparatus of claim 1, wherein the hermetic barrier layer includes:
a first flexible insulating material layer disposed on the at least one conductor;
a first superelastic metal alloy layer disposed on the first flexible insulating material layer;
a second flexible insulating material layer disposed on the first superelastic metal alloy layer;
a second superelastic metal alloy layer disposed on the second flexible insulating material layer; and
a third flexible insulating material layer disposed on the second superelastic metal alloy layer.

### Claim 6 (depends on 1)

The ophthalmic apparatus of claim 1, wherein a second hermetic barrier layer is formed on a bottom side of the substrate in an area corresponding to the at least one conductor.

### Claim 7 (depends on 1)

The ophthalmic apparatus of claim 1, wherein the superelastic metal alloy is selected from one of Nitinol, copper-zinc-aluminum, copper-aluminum, copper-aluminum-nickel, and copper-aluminum-beryllium.

### Claim 8 (depends on 1)

The ophthalmic apparatus of claim 1, wherein the first, second and third flexible insulating material layers are formed from one of silicone, pressure sensitive adhesive (PSA) silicone, rubbery PSAs, polyimide, polyetherimide, polyethylene terephthalate, parylene, or acrylic copolymer.

### Claim 9 (depends on 1)

The ophthalmic apparatus of claim 1, wherein the support structure is annular shaped forming an aperture, and wherein the ophthalmic apparatus further comprises:
a dynamic optic arranged in the aperture, and coupled to provide dynamic accommodation in response to a control signal; and
optical windows disposed on opposing sides of the support structure.

### Claim 10 (depends on 9)

The ophthalmic apparatus of claim 9, further comprising:
control electronics disposed on the substrate and electrically coupled to control the dynamic optic, wherein the control electronics are coupled to the dynamic optic via the at least one conductor to provide the control signal.

### Claim 11 (depends on 1)

The ophthalmic apparatus of claim 1, further comprising an antenna disposed on the substrate.

### Claim 12 (depends on 11)

The ophthalmic apparatus of claim 11, wherein a third hermetic barrier layer is disposed on the antenna.

### Claim 13

An intraocular lens, comprising:
a support structure;
a substrate embedded in the support structure;
at least one conductor disposed on a surface of the substrate, wherein the at least one conductor is formed from a superelastic metal alloy; and
a hermetic barrier structure disposed on the at least one conductor, the hermetic barrier structure formed from a stack of alternating flexible insulating material and superelastic metal alloy layers.

### Claim 14 (depends on 13)

The intraocular lens of claim 13, wherein the superelastic metal alloy is a shape-memory alloy.

### Claim 15 (depends on 14)

The intraocular lens of claim 14, wherein the shape memory alloy is selected from one of Nitinol, copper-zinc-aluminum, copper-aluminum, copper-aluminum-nickel, and copper-aluminum-beryllium.

### Claim 16 (depends on 13)

The intraocular lens of claim 13, wherein a second hermetic barrier layer is formed on a bottom side of the substrate corresponding with the at least one conductor.

### Claim 17 (depends on 13)

The intraocular lens of claim 13, wherein each of the flexible insulating material layers are formed from one of silicone, pressure sensitive adhesive (PSA) silicone, rubbery PSAs polyimide, polyetherimide, polyethylene terephthalate, parylene, or acrylic copolymer.

### Claim 18 (depends on 13)

The intraocular lens of claim 13, wherein the hermetic barrier layer includes:
a first flexible insulating material layer disposed on the at least one conductor;
a first superelastic metal alloy layer disposed on the first flexible insulating material layer;
a second flexible insulating material layer disposed on the first superelastic metal alloy layer;
a second superelastic metal alloy layer disposed on the second flexible insulating material layer; and
a third flexible insulating material layer disposed on the second superelastic metal alloy layer.

### Claim 19 (depends on 13)

The intraocular lens of claim 13, wherein the support structure is annular shaped forming an aperture, and wherein the intraocular lens further comprises:
a dynamic optic arranged in the aperture, and coupled to provide dynamic accommodation in response to a control signal; and
optical windows disposed on opposing sides of the support structure and spanning across at least the dynamic optic.

### Claim 20 (depends on 13)

The intraocular lens of claim 13, further comprising:
control electronics disposed on the substrate and electrically coupled to control the dynamic optic, wherein the control electronics are coupled to the dynamic optic via the at least on conductor to provide the control signal.

### Claim 21 (depends on 13)

The intraocular lens of claim 13, further comprising an antenna disposed on the substrate wherein a third hermetic barrier layer is disposed on the antenna.