Patent US3140405A successfully refreshed from Google Patents.
Patent US4575373A successfully refreshed from Google Patents.
US4575373A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser adjustable intraocular lens and method of altering lens power
Assignee: Individual
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Filing: 1984-11-02
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Granted: 1986-03-11
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Expires: 2004-11-02
Abstract
Abstract A laser beam is utilized to alter, in situ, the power of an implanted intraocular lens. The overall intraocular lens can be of conventional size and shape. The circumference, or outer ring of the lens is manufactured from a non-toxic heat shrinkable plastic. The plastic is preferably colored to permit selective absorption of laser energy thereby causing the shape, and thus the corrective power, of the lens to change. The invention is particularly useful for correcting postoperative astigmatism.
Inventors
- 👤 Don R. Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:54
CPC Classifications
G; G02; G02C; G02C7/00; G02C7/02; G02C7/04; A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/16; A61F2/1613; A61F2/1624; A61F2/1635; A61F2/1648
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
58 words
A method for altering the corrective power of an implanted intraocular lens while positioned in an eye which comprises contacting a selected portion of the implanted lens with a laser beam at an intensity and for a time sufficient to alter the shape of the lens thereby altering its corrective power without substantially and permanently harming the eye.
Claim 2
Independent Claim
58 words
A method for altering the corrective power of an implanted intraocular lens while positioned in an eye which comprises contacting a selected portion of the implanted lens with a laser beam at an intensity and for a time sufficient to alter the shape of the lens thereby altering its corrective power without substantially and permanently harming the eye.
Claim 3
Dependent Claim
39 words
A method for altering the corrective power of an implanted intraocular lens as in claim 1 wherein the selected portion of the implanted lens contacted with the laser beam is colored to permit selective absorption of the laser beam.
Claim 4
Dependent Claim
31 words
A method for altering the corrective power of an implanted intraocular lens as in claim 2 wherein the colored selected portion is positioned adjacent to the peripheral portion of the lens.
Claim 5
Dependent Claim
35 words
A method for altering the corrective power of an implanted intraocular lens as in claim 3 wherein the colored selective portion is a continuous concentric ring positioned adjacent to the outer edge of the lens.
Claim 6
Dependent Claim
31 words
A method for altering the corrective power of an implanted intraocular lens as in claim 3 wherein the colored selected portion is a plurality of discrete equally spaced apart colored sections.
Claim 7
Dependent Claim
39 words
A method for altering the corrective power of an implanted intraocular lens as in claim 1 wherein the lens is manufactured at least in part from a transparent, heat shrinkable plastic, said laser beam contacting the heat shrinkable plastic.
Claim 8
Dependent Claim
73 words
An intraocular lens for implantation into an eye and capable of having its corrective power altered by a laser when positioned in the eye which comprises an optically clear central portion and a heat shrinkable plastic peripheral portion, said peripheral portion having a colored section to receive laser energy, said colored section, when exposed to laser energy being capable of altering the shape of and thus the corrective power of the intraocular lens.
Claim 9
Dependent Claim
73 words
An intraocular lens for implantation into an eye and capable of having its corrective power altered by a laser when positioned in the eye which comprises an optically clear central portion and a heat shrinkable plastic peripheral portion, said peripheral portion having a colored section to receive laser energy, said colored section, when exposed to laser energy being capable of altering the shape of and thus the corrective power of the intraocular lens.
Claim 10
Dependent Claim
46 words
An intraocular lens for implantation into an eye and capable of having its corrective power altered by a laser when positioned in the eye as in claim 7 wherein the colored section is a concentric heat shrinkable ring positioned adjacent to the edge of the lens.
Claim 11
Dependent Claim
89 words
An intraocular lens for implantation into an eye and capable of having its corrective power altered by a laser when positioned in the eye as in claim 8 wherein the optically clear center section is a flexible fluid filled chamber, the inner portion of the heat shrinkable ring is attached to the periphery of the fluid filled chamber and the outer portion of the heat shrinkable ring is attached to a rigid ring whereby contraction of the heat shrinkable ring changes the power of the optically clear center section.
Claim 12
Dependent Claim
49 words
An intraocular lens for implantation into an eye and capable of having its corrective power altered by a laser when positioned in the eye as in claim 7 wherein the intraocular lens comprises a pair of superimposed interconnected lens, said lens interconnected by the heat shrinkable plastic peripheral portion.
Claim 13
Dependent Claim
39 words
An intraocular lens for implantation into an eye and capable of having its corrective power altered by a laser when positioned in the eye as in claim 10 wherein the lenses are interconnected by a heat shrinkable plastic ring.
Claim 14
Dependent Claim
44 words
An intraocular lens for implantation into an eye and capable of having its corrective power altered by a laser when positioned in the eye as in claim 10 wherein the lenses are interconnected by a plurality of discrete spaced apart heat shrinkable plastic pillars.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-03-10 | 1989-09-09 | 1990-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-10 | 1993-09-09 | 1994-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-10 | 1997-09-09 | 1998-03-11 | $7700.00 | Window Closed / Lapsed |