Accommodative intraocular lens

Patent metadata

Field	Value
Publication number	US-10258462-B2
Application number	US-201515125916-A
Country	US
Kind code	B2
Filing date	Jun 24, 2015
Priority date	Dec 26, 2012
Publication date	Apr 16, 2019
Grant date	Apr 16, 2019

Abstract

An accommodating intraocular lens implant is provided that includes a bowl-shaped posterior lens unit, which comprises a posterior lens, and has an inner surface; an anterior floating lens unit, which comprises an anterior lens; and a plurality of levers, which (a) are in jointed connection with the anterior floating lens unit and the posterior lens unit, and (b) are arranged to move the anterior floating lens unit toward and away from the posterior lens unit, in an anterior-posterior direction. The lens implant is shaped such that the inner surface limits posterior motion of the anterior floating lens unit.

First claim

The invention claimed is:

1. An apparatus comprising an accommodating intraocular lens implant, which comprises:
a bowl-shaped posterior lens unit, which (a) comprises a posterior lens, and (b) has a concave, bowl-shaped inner surface;
an anterior floating lens unit, which comprises an anterior lens; and
a plurality of levers, which (a) are in jointed connection with the anterior floating lens unit and the posterior lens unit, and (b) are arranged to cause (i) posterior motion of the anterior floating lens unit toward the posterior lens and (ii) anterior motion of the anterior floating lens unit away from the posterior lens,
wherein the accommodating intraocular lens implant is shaped such that the concave, bowl-shaped inner surface limits the posterior motion of the anterior floating lens unit toward the posterior lens,
wherein the accommodating intraocular lens implant further comprises an anterior rim complex disposed such that the anterior floating lens unit is movable toward and away from the anterior rim complex, in an anterior-posterior direction,
wherein each of the levers is in jointed connection with the anterior floating lens unit, the anterior rim complex, and the posterior lens unit,
wherein the levers are in the jointed connection with (i) the anterior floating lens unit at respective first longitudinal sites along the levers, (ii) the anterior rim complex at respective second longitudinal sites along the levers, and (iii) the posterior lens unit at respective third longitudinal sites along the levers,
wherein, for each of the levers, (a) a line defined by the second longitudinal site of the lever and the third longitudinal site of the lever, if projected onto a plane defined by a radially-outer perimeter of the accommodating intraocular lens implant, and (b) a line tangential to the radially-outer perimeter of the accommodating intraocular lens implant at a circumferential site of the perimeter circumferentially corresponding to the third longitudinal site of the lever, form an angle of between 75 and 105 degrees, and
wherein the second longitudinal sites are disposed radially inward from the third longitudinal sites, respectively.

2. The apparatus according to claim 1 , wherein the levers and the concave, bowl-shaped inner surface of the posterior lens unit are shaped such that the concave, bowl-shaped inner surface limits the posterior motion of the anterior floating lens unit toward the posterior lens by the concave, bowl-shaped inner surface touching the levers.

3. The apparatus according to claim 2 , wherein the levers and the concave, bowl-shaped inner surface of the posterior lens unit are shaped such that when the concave, bowl-shaped inner surface touches the levers, there is a space between the anterior floating lens unit and the posterior lens unit.

4. The apparatus according to claim 1 , wherein each of the levers is in jointed connection with the posterior lens unit at an end-most site of the lever.

5. The apparatus according to claim 1 ,
wherein the accommodating intraocular lens implant further comprises a plurality of anterior lens jointed elements, and
wherein the levers are in the jointed connection, at respective first longitudinal sites along the levers, with the anterior floating lens unit by the respective anterior lens jointed elements.

6. The apparatus according to claim 1 , wherein the first longitudinal sites are disposed radially inward from the second longitudinal sites and the third longitudinal sites, respectively.

7. The apparatus according to claim 1 ,
wherein the accommodating intraocular lens implant comprises an anterior component, which comprises the anterior floating lens unit and the levers,
wherein the posterior lens unit and the anterior component are distinct from each other and not permanently fixed to each other, and which are shaped so as to be assemblable together in situ in a human eye, and
wherein when the posterior lens unit and the anterior component are assembled together, the posterior lens unit and the anterior component contact each other at one or more interfaces.

8. The apparatus according to claim 7 , wherein when the posterior lens unit and the anterior component are assembled together, the levers are pivotable about the one or more interfaces.

9. The apparatus according to claim 1 ,
wherein the accommodating intraocular lens implant further comprises a circumferential rim, to which the levers are fixed at respective, different circumferential locations around the rim, and
wherein the levers are in jointed connection with the posterior lens unit at the circumferential rim.

10. The apparatus according to claim 9 ,
wherein the concave, bowl-shaped inner surface of the posterior lens unit defines an interface region, a portion of which defines a local maximum radius from a central optical axis of the posterior lens, and
wherein the circumferential rim is in jointed connection with the interface region of the concave, bowl-shaped inner surface.

11. The apparatus according to claim 1 , wherein the posterior lens is biconvex.

12. The apparatus according to claim 1 , wherein the levers and the concave, bowl-shaped inner surface of the posterior lens unit are shaped such that the concave, bowl-shaped inner surface limits the posterior motion of the anterior floating lens unit by the concave, bowl-shaped inner surface touching respective portions of the levers longitudinally between the respective second and third longitudinal sites along the levers.

13. The apparatus according to claim 12 , wherein the levers and the concave, bowl-shaped inner surface of the posterior lens unit are shaped such that when the concave, bowl-shaped inner surface touches the respective portions of the levers, the respective portions of the levers are flush with the concave, bowl-shaped inner surface of the posterior lens.

14. An apparatus comprising an accommodating intraocular lens implant, which comprises:
a bowl-shaped posterior lens unit, which (a) comprises a posterior lens, and (b) has a concave, bowl-shaped inner surface;
an anterior floating lens unit, which comprises an anterior lens; and
a plurality of levers, which (a) are in jointed connection with the anterior floating lens unit and the posterior lens unit, and (b) are arranged to cause (i) posterior motion of the anterior floating lens unit toward the posterior lens and (ii) anterior motion of the anterior floating lens unit away from the posterior lens,
wherein the accommodating intraocular lens implant is shaped such that the concave, bowl-shaped inner surface limits the posterior motion of the anterior floating lens unit toward the posterior lens,
wherein the accommodating intraocular lens implant further comprises an anterior rim complex disposed such that the anterior floating lens unit is movable toward and away from the anterior rim complex, in an anterior-posterior direction,
wherein each of the levers is in jointed connection with the anterior floating lens unit, the anterior rim complex, and the posterior lens unit,
wherein the levers are in the jointed connection with (i) the anterior floating lens unit at respective first longitudinal sites along the levers, (ii) the anterior rim complex at respective second longitudinal sites along the levers, and (iii) the posterior lens unit at respective third longitudinal sites along the levers,
wherein, for each of the levers, (a) a line defined by the second longitudinal site of the lever and the third longitudinal site of the lever, if projected onto a plane defined by a radially-outer perimeter of the accommodating intraocular lens implant, and (b) a lin

Assignees

• Rainbow Medical Ltd

Inventors

• Sohn Zev
• Gross Yossi

Classifications

• A61F2/1648

  Multipart lenses · CPC title

• A61F2/1629 Primary

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

• A61F2002/1682

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

• A61F2002/1699

  Additional features not otherwise provided for · CPC title