Patient interface for light adjustable intraocular lens irradiation system

• US 10,456,240 B2
• Filed: 11/24/2017
• Issued: 10/29/2019
• Est. Priority Date: 11/24/2017
• Status: Active Grant

• Current Assignee: RxSight, Inc.
• Original Assignee: RxSight, Inc.
• Inventors: Kondis, John, Goldshleger, Ilya
• Primary Examiner(s): Willse, David H
• Assistant Examiner(s): Blanco, Javier G
• Application Number:
  US15/822,099
• Publication Number:
  US 20190159889A1
• Time in Patent Office: 704 Days
• CPC Class Codes: A61F 2/16 Intraocular lenses
• CPC Class Codes: A61F 2/1624 having adjustable focus; power activated variable focus means, e.g. mechanically or electrically by the ciliary muscle or from the outside
• CPC Class Codes: A61F 2/1635 for changing shape
• CPC Class Codes: A61F 2/1659 having variable absorption coefficient for electromagnetic radiation, e.g. photochromic lenses
• CPC Class Codes: A61F 2002/1699 Additional features not otherwise provided for
• CPC Class Codes: A61F 2009/0052 the instrument being supported on the patient's eye
• CPC Class Codes: A61F 2210/0085 hardenable in situ, e.g. epoxy resins
• CPC Class Codes: A61F 2250/0001 Means for transferring electromagnetic energy to implants
• CPC Class Codes: A61F 2250/0004 adjustable
• CPC Class Codes: A61F 9/00 Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand caps with means for protecting the eyes A42B1/018; visors for helmets A42B3/22; retractors A61B17/02; manipulators specially adapted for use in surgery A61B34/70; appliances to aid invalids to move about A61H3/00; exercisers for the eyes A61H5/00; eye baths A61H35/02; sunglasses or goggles having the same features as spectacles G02C
• CPC Class Codes: A61N 2005/0633 Arrangements for lifting or hinging the frame which supports the light sources
• CPC Class Codes: A61N 2005/0648 the light being directed to the eyes
• CPC Class Codes: A61N 2005/0654 Lamps
• CPC Class Codes: A61N 2005/0661 ultraviolet
• CPC Class Codes: A61N 5/0613 Apparatus adapted for a specific treatment
• CPC Class Codes: A61N 5/067 using laser light
• CPC Class Codes: B29D 11/00461 Adjusting the refractive index, e.g. after implanting

Abstract

In embodiments, a light adjustable lens irradiation system for a light adjustable lens irradiation system, comprises an irradiation light source, for generating a UV light beam; an optical system, for directing the UV light beam towards a light adjustable intraocular lens, implanted into an eye of a patient; and a patient interface, coupled to the optical system, for stabilizing the eye relative to the optical system, to achieve an alignment of the light adjustable intraocular lens and the UV light beam.

Claims

1. A light adjustable lens irradiation system for post-operatively adjusting optical characteristics of a light adjustable intraocular lens (IOL) in a human eye, the light adjustable lens irradiation system comprising:

an irradiation light source, for generating an ultraviolet (UV) light beam;

an optical system, for directing the UV light beam towards a light adjustable intraocular lens, implanted into an eye of a patient; and

a patient interface, coupled to the optical system, for stabilizing the eye relative to the optical system to achieve an alignment of the light adjustable intraocular lens and the UV light beam,

wherein the patient interface is sized and configured to directly couple to the eye of the patient,

wherein the optical system includes an objective, and the patient interface and the objective are spatially separated,

wherein the objective is laterally adjustable relative to the patient interface,

wherein the optical system directs the UV light beam to irradiate a central portion of the intraocular lens, and wherein the optical system modulates the UV light beam to attain a radial intensity profile,

wherein the light adjustable intraocular lens is fabricated from photo-polymerizable macromers, interspersed with a photoinitiator,

wherein the radial intensity profile of the irradiating UV light induces polymerization of the photo-polymerizable macromers with a corresponding radial profile, and wherein polymerizing with a radial profile changes the shape of the light adjustable intraocular lens, and therefore changes the optical characteristics of the light adjustable intraocular lens.

2. The light adjustable lens irradiation system of claim 1, comprising:

a patient-engagement frame, for engaging a head of the patient;

wherein the patient interface is coupled to the patient-engagement frame.

3. The light adjustable lens irradiation system of claim 1, comprising:

a vacuum pump;

for creating vacuum suction; and

a suction hose, for coupling the vacuum pump to the patient interface to transfer the vacuum suction via a fluid connection,

wherein the patient interface includes an elastic skirt, circularly positioned on a perimeter of the patient interface, for applying the vacuum suction to the eye to stabilize the eye.

4. The light adjustable lens irradiation system of claim 1, the patient interface comprising:

a mechanical engagement portion, for enhancing a mechanical engagement force on the eye, by including at least one of protrusions, sharpened edges, tightening members, and enhanced friction members.

5. The light adjustable lens irradiation system of claim 1, wherein:

the patient interface is a one-piece patient interface, for coupling both to the optical system and to the eye of the patient.

6. The light adjustable lens irradiation system of claim 1, wherein:

the patient interface is a two-piece patient interface, including a device docking portion, configured to couple to the optical system, and

an eye-control portion, configured to couple to the eye of the patient;

wherein the device docking portion and the eye-control portion are configured to be coupled together.

7. The light adjustable lens irradiation system of claim 6, the eye-control portion comprising:

a tightening mechanism, for an operator to tighten a mechanical coupling with the eye after an initial contact has been established between the eye-control portion of the patient interface and the eye.

8. The light adjustable lens irradiation system of claim 1, wherein:

the irradiation light source, the optical system, and the patient interface are combined into a wearable light adjustable lens irradiation system.

9. The light adjustable lens irradiation system of claim 8, comprising:

a headband, to stabilize the wearable light adjustable lens irradiation system relative to a head of a patient.

10. The light adjustable lens irradiation system of claim 1, the optical system comprising:

a digital mirror device, for directing the UV light beam towards the eye, and for modulating the UV light beam to attain said radial intensity profile.