US5628794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multifocal corneal implant lens having a hydrogelo coating
Assignee: HEALTHCARE ROYALTY PARTNERS II LP
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Filing: 1996-03-08
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Granted: 1997-05-13
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Expires: 2016-03-08
Abstract
Abstract Hydrogel coated multifocal intraocular implantable lens having an anti-glare edge surrounded by a hydrogel ring having nutrient passage capabilities.
Inventors
- 👤 Richard L. Lindstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:54
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/16; A61F2/1613; A61F2/145; A61F2/15; A61F2/1616; A61F2/1618
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
91 words
A small corneal implant lens of rigid material having an outer diameter less than 2.5 mm and having an outer edge; a. said lens having a coating of hydrogel material in the range from 0.001 to 100 microns thick over an active area of said lens; b. said lens including a ring of hydrogel material extending outwardly from said outer edge of said lens at least 0.5 mm; c. wherein the outer edge of said lens has a geometric shape selected for the minimization of the diffracted image from said edge.
Claim 2
Dependent Claim
91 words
A small corneal implant lens of rigid material having an outer diameter less than 2.5 mm and having an outer edge; a. said lens having a coating of hydrogel material in the range from 0.001 to 100 microns thick over an active area of said lens; b. said lens including a ring of hydrogel material extending outwardly from said outer edge of said lens at least 0.5 mm; c. wherein the outer edge of said lens has a geometric shape selected for the minimization of the diffracted image from said edge.
Claim 3
Dependent Claim
91 words
A small corneal implant lens of rigid material having an outer diameter less than 2.5 mm and having an outer edge; a. said lens having a coating of hydrogel material in the range from 0.001 to 100 microns thick over an active area of said lens; b. said lens including a ring of hydrogel material extending outwardly from said outer edge of said lens at least 0.5 mm; c. wherein the outer edge of said lens has a geometric shape selected for the minimization of the reflected image from said edge.
Claim 4
Dependent Claim
91 words
A small corneal implant lens of rigid material having an outer diameter less than 2.5 mm and having an outer edge; a. said lens having a coating of hydrogel material in the range from 0.001 to 100 microns thick over an active area of said lens; b. said lens including a ring of hydrogel material extending outwardly from said outer edge of said lens at least 0.5 mm; c. wherein the outer edge of said lens has a geometric shape selected for the minimization of the reflected image from said edge.
Claim 5
Dependent Claim
33 words
A small corneal implant lens according to claim 1, wherein the outer edge of said lens has a geometric shape selected for the minimization of the diffracted and reflected images from said edge.
Claim 6
Dependent Claim
23 words
A small corneal implant lens according to claim 1, wherein said rigid material is selected from the group of polysulfone, PMMA, and polycarbonates.
Claim 7
Dependent Claim
35 words
A small corneal implant lens according to claim 1, wherein said hydrogel coating has an index of refraction intermediate the index of refraction of said rigid material and the index of refraction of corneal tissue.
Claim 8
Dependent Claim
25 words
A small corneal implant lens according to claim 1, wherein said lens has at least one hole therein and said hydrogel coating fills said hole.
Claim 9
Dependent Claim
25 words
A small corneal implant lens according to claim 1, wherein said lens has a plurality of holes therein and said hydrogel coating fills said holes.
Claim 10
Dependent Claim
36 words
A small corneal implant lens according to claim 1, wherein said lens has an axially centered hole having a diameter in the range of 100 microns to 0.1 mm and said hydrogel coating fills said hole.
Claim 11
Dependent Claim
50 words
A small corneal implant lens according to claim 1, wherein said lens has an axially centered hole having a diameter sufficient to generate a readily usable image of an object at a different distance than the distance of the object providing a readily usable image when viewed through said lens.
Claim 12
Dependent Claim
25 words
A small corneal implant lens according to claim 9, wherein said lens has a plurality of holes therein and said hydrogel coating fills said holes.
Claim 13
Dependent Claim
27 words
A small corneal implant lens according to claim 10, wherein a plurality of said holes have a diameter in the range of 0.000001 mm to 1.0 mm.
Claim 14
Dependent Claim
55 words
A small corneal implant lens according to claim 9, wherein said axially centered hole is filled with hydrogel material having a shape and index of refraction to generate a readily usable image of an object at a different distance than the distance of the object providing a readily usable image when viewed through said lens.
Claim 15
Dependent Claim
65 words
A small corneal implant lens of rigid material having an outer diameter less than 2.5 mm and an outer edge; a. said lens having a ring of hydrogel material extending outwardly from said outer edge of said lens at least 0.5 mm; b. wherein the outer edge of said lens has a geometric shape selected for the minimization of the diffracted image from said lens.
Claim 16
Dependent Claim
65 words
A small corneal implant lens of rigid material having an outer diameter less than 2.5 mm and an outer edge; a. said lens having a ring of hydrogel material extending outwardly from said outer edge of said lens at least 0.5 mm; b. wherein the outer edge of said lens has a geometric shape selected for the minimization of the diffracted image from said lens.
Claim 17
Dependent Claim
65 words
A small corneal implant lens of rigid material having an outer diameter less than 2.5 mm and an outer edge; a. said lens having a ring of hydrogel material extending outwardly from said outer edge of said lens at least 0.5 mm; b. wherein the outer edge of said lens has a geometric shape selected for the minimization of the reflected image from said lens.
Claim 18
Dependent Claim
65 words
A small corneal implant lens of rigid material having an outer diameter less than 2.5 mm and an outer edge; a. said lens having a ring of hydrogel material extending outwardly from said outer edge of said lens at least 0.5 mm; b. wherein the outer edge of said lens has a geometric shape selected for the minimization of the reflected image from said lens.
Claim 19
Dependent Claim
33 words
A small corneal implant lens according to claim 13, wherein the outer edge of said lens has a geometric shape selected for the minimization of the reflected and diffracted images from said edge.
Claim 20
Dependent Claim
35 words
A small corneal implant lens according to claim 13, wherein said hydrogel ring has an index of refraction intermediate the index of refraction of said rigid material and the index of refraction of corneal tissue.
Claim 21
Dependent Claim
35 words
A small corneal implant lens according to claim 14, wherein said hydrogel ring has an index of refraction intermediate the index of refraction of said rigid material and the index of refraction of corneal tissue.
Claim 22
Dependent Claim
35 words
A small corneal implant lens according to claim 15, wherein said hydrogel ring has an index of refraction intermediate the index of refraction of said rigid material and the index of refraction of corneal tissue.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-05-12 | 2000-11-11 | 2001-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-05-12 | 2004-11-11 | 2005-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-05-12 | 2008-11-11 | 2009-05-13 | $7700.00 | Window Closed / Lapsed |