Dual optic, curvature changing accommodative IOL

Patent metadata

Field	Value
Publication number	US-10478285-B2
Application number	US-201514920663-A
Country	US
Kind code	B2
Filing date	Oct 22, 2015
Priority date	Mar 3, 2015
Publication date	Nov 19, 2019
Grant date	Nov 19, 2019

Abstract

The present disclosure concerns a curvature-changing, accommodative intraocular lens (IOL) for implantation in the capsular bag of a patient's eye. The IOL includes a fluid optic body having a cavity for containing an optical fluid, the cavity at least partially defined by a sidewall extending around the cavity and defining a diameter of the cavity and a deformable optical membrane intersecting the sidewall around a circumference of the sidewall and spanning the diameter of the cavity. The IOL further includes a second optic body spaced a distance apart from the fluid optic body and a plurality of struts extending from the sidewall and coupling the fluid optic body to the second optic body. The struts are configured such that axial compression of the capsular bag causes the struts to deform the sidewall in a manner that increases the diameter of the cavity, modifying a curvature of the deformable optical membrane.

First claim

The invention claimed is:

1. An intraocular lens configured to be implanted within a capsular bag of a patient's eye, the lens comprising:
a fluid optic body comprising a cavity for containing an optical fluid, the cavity defined by:
a deformable optical membrane configured to extend across an optical axis of the patient's eye, the deformable optical membrane defining an anterior surface of the cavity;
a second optical membrane configured to extend across the optical axis of the patient's eye, the second optical membrane defining a posterior surface of the cavity; and
a sidewall having an anterior end connected to the deformable optical membrane and a posterior end connected to the second optical membrane such that the sidewall extends between the deformable optical membrane and the second optical membrane;

a second optic body spaced a distance apart from the fluid optic body and configured to extend across the optical axis of the patient's eye; and
a plurality of struts extending from the sidewall and coupling the fluid optic body to the second optic body, the struts being configured such that axial compression of the capsular bag causes the plurality of struts to rotate the sidewall about a pivot in a manner that increases a diameter of the cavity at the anterior end of the sidewall more than a diameter of the cavity at the posterior end of the sidewall such that a radius of curvature of the deformable optical membrane is increased.

2. The intraocular lens of claim 1 , wherein the fluid optic body is configured to be disposed in contact with a first surface of the capsular bag and the second optic body is configured to be disposed in contact with a second surface of the capsular bag.

3. The intraocular lens of claim 1 , wherein the rotation of the sidewall in the manner that increases the diameter of the cavity at the anterior end of the sidewall causes an increase in tension on the deformable optical membrane.

4. The intraocular lens of claim 3 , wherein the rotation of the sidewall in the manner that increases the diameter of the cavity at the anterior end of the sidewall causes the deformable optical membrane to stretch radially.

5. The intraocular lens of claim 1 , wherein the struts are configured such that the axial compression of the capsular bag causes deformation of the struts.

6. The intraocular lens of claim 5 , wherein the deformation of the struts comprises each of the struts bowing outward relative to the optical axis of the patient's eye.

7. The intraocular lens of claim 5 , wherein the deformation of the struts comprises a radius of curvature of each of the struts decreasing.

8. The intraocular lens of claim 1 , wherein, upon the axial compression of the capsular bag, the distance between the fluid optic body and the second optic body along the optical axis decreases.

9. The intraocular lens of claim 1 , wherein each of the plurality of struts comprises a curved portion that is concave relative to the optical axis.

10. The intraocular lens of claim 1 , wherein the second optic body comprises a solid optic.

11. The intraocular of claim 1 , wherein the second optic body comprises a second fluid optic body, the second fluid optic body comprising a second cavity for containing a second optical fluid, the second cavity at least partially defined by:
a second sidewall extending around the second cavity and defining a diameter of the second cavity; and
a second deformable optical membrane intersecting the second sidewall around a circumference of the second sidewall and spanning the diameter of the second cavity, the second deformable optical membrane configured to extend across the optical axis of the patient's eye;
wherein:
the plurality of struts extending from the sidewall of the fluid optic body and connect to the second sidewall of the second fluid optic body; and
the struts are configured such that axial compression of the capsular bag causes the plurality of struts to deform the second sidewall of the second fluid optic body in a manner that increases in the diameter of the second cavity of the second fluid optic body such that a curvature of the second deformable optical membrane of the second fluid optic body is modified.

12. The intraocular lens of claim 1 , wherein each of the plurality of struts are coupled to one another via a circumferential ring disposed between the fluid optic body and the second optic body.

13. The intraocular lens of claim 12 , wherein the circumferential ring increases in diameter upon the axial compression of the capsular bag.

14. The intraocular lens of claim 1 , further comprising a mechanical block defining a minimum distance between the fluid optic body and the second optic body such that the increase in the radius of curvature of the deformable optical membrane is limited.

15. The intraocular lens of claim 14 , wherein the mechanical block comprises a second plurality of struts extending along the optical axis from the fluid optic body and partially towards the second optic body.

16. The intraocular lens of claim 15 , wherein the mechanical block comprises a radial extension from the fluid optic body that limits deformation of the struts during the axial compression of the capsular bag.

17. The intraocular lens of claim 1 , further comprising a solid lens disposed between the fluid optic body and the second optic body.

Assignees

• Novartis Ag

Inventors

• Borja David
• Gerardi Lauren
• Lee Shinwook

Classifications

• A61F2/1629

  for changing longitudinal position, i.e. along the visual axis when implanted · CPC title

• A61F2002/16901

  Supporting structure conforms to shape of capsular bag · CPC title

• A61F2/1648

  Multipart lenses · CPC title

• A61F2/1635 Primary

  for changing shape · CPC title

• A61F2002/1682

  having mechanical force transfer mechanism to the lens, e.g. for accommodating lenses · CPC title