US4685922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alterable refractive power intraocular lenses
Assignee: Individual
•
Filing: 1986-06-25
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Granted: 1987-08-11
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Expires: 2006-06-25
Abstract
Abstract Disclosed are intraocular lenses where the refractive power is fixed at implantation while offering the benefit of changing the refractive power subsequently with little or no surgical invasion and in a nearly atraumatic manner. The intraocular lenses are comprised of a central lenticular portion having a chamber therein and having at least one refractive, rupturable membrane which can be ruptured subsequent to implantation thus changing the refractive power of the lenses. The intraocular lenses can be implanted in either the posterior chamber or capsular bag.
Inventors
- 👤 Gholam A. Peyman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:11
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/16; A61F2/1613; A61F2/1624; A61F2/1627; A61F2250/00; A61F2250/0014; A61F2250/0053
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
96 words
Intraocular lens for implantation inside the eye of a mammal comprising: solid central lenticular means having a free standing shape retaining configuration throughout its solid form for refracting light entering the eye through the cornea before light passes to the retina, said solid central lenticular means having at least one chamber means therein and having at least one refractive, rupturable membrane means whereby said refractive, rupturable membrane means are rupturable subsequent to eye implantation thus permitting changing the refractive power of said intraocular lens while said solid central lenticular means substantially retains its free standing configuration.
Claim 2
Dependent Claim
96 words
Intraocular lens for implantation inside the eye of a mammal comprising: solid central lenticular means having a free standing shape retaining configuration throughout its solid form for refracting light entering the eye through the cornea before light passes to the retina, said solid central lenticular means having at least one chamber means therein and having at least one refractive, rupturable membrane means whereby said refractive, rupturable membrane means are rupturable subsequent to eye implantation thus permitting changing the refractive power of said intraocular lens while said solid central lenticular means substantially retains its free standing configuration.
Claim 3
Dependent Claim
38 words
The intraocular lens of claim 1 wherein said chamber means is filled with a material having an index of refraction different from the index of refraction of said solid central lenticular means and said refractive, rupturable membrane means.
Claim 4
Dependent Claim
36 words
The intraocular lens of claim 1 wherein said chamber means is evacuated and has an index of refraction different from the index of refraction of said solid central lenticular means and said refractive, rupturable membrane means.
Claim 5
Dependent Claim
27 words
The intraocular lens of claim 1 additionally comprising at least two resilient haptic means for stabilizing and holding in place in the eye said central lenticular means.
Claim 6
Dependent Claim
27 words
The intraocular lens of claim 2 additionally comprising at least two resilient haptic means for stabilizing and holding in place in the eye said central lenticular means.
Claim 7
Dependent Claim
27 words
The intraocular lens of claim 3 additionally comprising at least two resilient haptic means for stabilizing and holding in place in the eye said central lenticular means.
Claim 8
Dependent Claim
32 words
The intraocular lens of claim 2 wherein said material filling said chamber means consists essentially of a material selected from the group consisting of physiologically compatible gases, silicones, gelatins and polyvinyl alcohols.
Claim 9
Dependent Claim
32 words
The intraocular lens of claim 5 wherein said material filling said chamber means consists essentially of a material selected from the group consisting of physiologically compatible gases, silicones, gelatins and polyvinyl alcohols.
Claim 10
Dependent Claim
100 words
Intraocular lens for implantation inside the eye of a mammal comprising: solid central lenticular means for refracting light entering the eye through the cornea before light passes to the retina, said solid central lenticular means having at least two chamber means therein separated by refractive, rupturable membrane means, said chamber means filled with a material having an index of refraction different from the index of refraction of said solid central lenticular means and said refractive, rupturable membrane means whereby said refractive, rupturable membrane means are rupturable subsequent to eye implantation thus permitting changing the refractive power of said intraocular lens.
Claim 11
Dependent Claim
100 words
Intraocular lens for implantation inside the eye of a mammal comprising: solid central lenticular means for refracting light entering the eye through the cornea before light passes to the retina, said solid central lenticular means having at least two chamber means therein separated by refractive, rupturable membrane means, said chamber means filled with a material having an index of refraction different from the index of refraction of said solid central lenticular means and said refractive, rupturable membrane means whereby said refractive, rupturable membrane means are rupturable subsequent to eye implantation thus permitting changing the refractive power of said intraocular lens.
Claim 12
Dependent Claim
27 words
The intraocular lens of claim 9 additionally comprising at least two resilient haptic means for stabilizing and holding in place in the eye said central lenticular means.
Claim 13
Dependent Claim
32 words
The intraocular lens of claim 9 wherein said material filling said chamber means consists essentially of a material selected from the group consisting of physiologically compatible gases, silicones, gelatins and polyvinyl alcohols.
Claim 14
Dependent Claim
32 words
The intraocular lens of claim 10 wherein said material filling said chamber means consists essentially of a material selected from the group consisting of physiologically compatible gases, silicones, gelatins and polyvinyl alcohols.
Claim 15
Dependent Claim
99 words
Intraocular lens for insertion inside the eye of a mammal comprising: solid central lenticular means for refracting light entering the eye through the cornea before light passes to the retina, said solid central lenticular means having at least two chamber means therein separated by refractive, rupturable membrane means, said chamber means being evacuated and having an index of refraction different from the index of refraction of said solid central lenticular means and said refractive, rupturable membrane means whereby said refractive, rupturable membrane means is rupturable subsequent to eye implantation thus permitting changing the refractive power of said intraocular lens.
Claim 16
Dependent Claim
99 words
Intraocular lens for insertion inside the eye of a mammal comprising: solid central lenticular means for refracting light entering the eye through the cornea before light passes to the retina, said solid central lenticular means having at least two chamber means therein separated by refractive, rupturable membrane means, said chamber means being evacuated and having an index of refraction different from the index of refraction of said solid central lenticular means and said refractive, rupturable membrane means whereby said refractive, rupturable membrane means is rupturable subsequent to eye implantation thus permitting changing the refractive power of said intraocular lens.
Claim 17
Dependent Claim
27 words
The intraocular lens of claim 13 additionally comprising at least two resilient haptic means for stabilizing and holding in place in the eye said central lenticular means.
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) | 1990-08-10 | 1991-02-09 | 1991-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-10 | 1995-02-09 | 1995-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-10 | 1999-02-09 | 1999-08-11 | $7700.00 | Window Closed / Lapsed |