Multi-piece accommodating intraocular lens

Patent metadata

Field	Value
Publication number	US-2020008931-A1
Application number	US-201615776380-A
Country	US
Kind code	A1
Filing date	Nov 15, 2016
Priority date	Nov 18, 2015
Publication date	Jan 9, 2020
Grant date	—

Abstract

An accommodating intraocular lens (AIOL) for implantation within a capsular bag of a patient's eye comprises first and second components coupled together to define an inner fluid chamber and an outer fluid reservoir. The inner region of the AIOL provides optical power with one or more of the shaped fluid within the inner fluid chamber or the shape of the first or second components. The fluid reservoir comprises a bellows region with fold(s) extending circumferentially around an optical axis of the eye. The bellows engages the lens capsule, and a compliant fold region between inner and outer bellows portions allows the profile of the AIOL to deflect when the eye accommodates for near vision. Fluid transfers between the inner fluid chamber and the outer fluid reservoir to provide optical power changes. A third lens component coupled to the first or second component provides additional optical power.

First claim

I/We claim:

1 . An accommodating intraocular lens for placement within a lens capsule of a subject, the accommodating intraocular lens comprising:
a first component having an inner region and an outer region; a second component having an inner region and an outer region, the second component being coupled to the first component; a fluid chamber defined between inner surfaces of the inner regions of the first and second components; a fluid reservoir defined between inner surfaces of the outer regions of the first and second components, the fluid reservoir being in fluid communication with the fluid chamber to transfer fluid between the fluid chamber and the fluid reservoir in response to shape changes of the lens capsule to provide optical power changes to the accommodating intraocular lens; and a third component having an optical power and being coupled to the first or second component, the third component having an inner surface facing and adjacent to an outer surface of the first or second component to which the third component is coupled.

2 . The accommodating intraocular lens of claim 1 , wherein one or more of the inner region of the first component or the inner region of the second component comprises a planar member.

3 . The accommodating intraocular lens of claim 1 , wherein one or more of the inner region of the first component or the inner region of the second component is configured to deflect in response to the fluid transfer between the fluid chamber and the fluid reservoir.

4 . The accommodating intraocular lens of claim 3 , wherein deflection of the one or more of the inner region of the first component or the inner region of the second component provides at least a portion of the optical power changes.

5 . The accommodating intraocular lens of claim 4 , wherein the deflection of the one or more of the inner region of the first component or the inner region of the second component changes one or more of a dimension or shape of the fluid chamber to provide the at least the portion of the optical power changes.

6 . The accommodating intraocular lens of claim 5 , wherein the changes to the one or more of the dimension or the shape of the fluid chamber comprise a separation distance between inner surfaces of the inner regions of the first and second components.

7 . The accommodating intraocular lens of claim 1 , wherein the third component is coupled to the second component, and wherein the inner region of the first component comprises a deflectable member configured to deflect in response to the fluid transfer between the fluid chamber and the fluid reservoir.

8 . The accommodating intraocular lens of claim 1 , wherein the first component is glued to the second component at a joint.

9 . The accommodating intraocular lens of claim 1 , further comprising protrusions on the inner surface of one or more of the first component or the second component to provide a gap between the first component and the second component.

10 . The accommodating intraocular lens of claim 1 , wherein the first component is glued to the second component at a joint extending circumferentially around the first component and the second component.

11 . The accommodating intraocular lens of claim 1 , wherein the outer regions of the first and second components extend continuously circumferentially around the inner regions of the first and second components, respectively.

12 . The accommodating intraocular lens of claim 1 , wherein the outer region of the first component comprises one or more folds extending continuously circumferentially around an optical axis of the outer region of the first component, and wherein the outer region of the second component comprises one or more folds extending continuously circumferentially around an optical axis of the outer region of the second component.

13 . The accommodating intraocular lens of claim 12 , wherein the one or more folds of the outer region of the first component and the one or more folds of the outer region of the second component extend toward each other to define a plurality of bellows, and wherein the fluid reservoir comprises the plurality of bellows.

14 . The accommodating intraocular lens of claim 1 , wherein the first component comprises a first annularly-shaped stiff coupling structure extending circumferentially between the inner and outer regions to inhibit radial movement of the outer region with radial movement of the inner region, wherein the second component comprises a second annularly-shaped stiff coupling structure extending circumferentially between the inner and outer regions to inhibit radial movement of the inner region with radial movement of the outer region, wherein the first annularly-shaped structure comprises a first radial thickness greater than a first thickness of the outer region of the first component, and wherein the second annularly-shaped structure comprises a second radial thickness greater than the second thickness of the outer region of the second component.

15 . The accommodating intraocular lens of claim 1 , wherein the first component comprises an anterior component and the second component comprises a posterior component.

16 . The accommodating intraocular lens of claim 1 , wherein one or more of the inner region of the first component or the inner region of the second component comprises a shell.

17 . The accommodating intraocular lens of claim 1 , wherein one of the inner region of the first component or the inner region of the second component comprises a planar member and the other of the inner regions comprises a plano-convex member shaped to provide an optical power.

18 . The accommodating intraocular lens of claim 1 , wherein the fluid within the fluid chamber shapes the fluid chamber so as to provide an optical power.

19 . The accommodating intraocular lens of claim 1 , wherein protrusions located between the inner and outer regions of the first and second components connect the first component to the second component and wherein the protrusions are located on one or more stiff coupling structures of one or more of the first or second components to provide a gap between the first and second components.

20 . The accommodating intraocular lens of claim 1 , wherein the fluid reservoir comprises a compliant fold region between inner and outer bellows regions, the compliant fold region being thinner than the inner and outer bellows.

21 . The accommodating intraocular lens of claim 1 , further comprising a plurality of protrusions coupled to one or more of the first or second components which separates the first and second components from one another.

22 . The accommodating intraocular lens of claim 21 , wherein the plurality of protrusions is disposed between the inner and outer regions of the first and second components.

23 . The accommodating intraocular lens of claim 21 , wherein the plurality of protrusions defines a plurality of fluid channels between the fluid chamber and the fluid reservoir, each of the plurality of fluid channels being defined between two adjacent protrusions.

24 . The accommodating intraocular lens of claim 1 , wherein one or more of the first or second components comprises a polymeric material.

25 . The accommodating intraocular lens of claim 24 , wherein the polymeric material comprises a PMMA copolymer.

26 . The accommodating intraocular lens of claim 2

Assignees

• Shifamed Holdings Llc

Inventors

• Argento Claudio
• Saul Tom

Classifications

• A61F2/1648

  Multipart lenses · CPC title

• A61F2002/1681

  having supporting structure for lens, e.g. haptics · CPC title

• A61F2/1645

  Toric lenses · CPC title

• A61F2/1635 Primary

  for changing shape · CPC title

• A61F2/1601

  Lens body having features to facilitate aqueous fluid flow across the intraocular lens, e.g. for pressure equalization or nutrient delivery · CPC title