US5197981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intraocular lens having haptic of specific curvature and proportion
Assignee: Alcon Research LLC
•
Filing: 1992-04-23
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Granted: 1993-03-30
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Expires: 2012-04-23
Abstract
Abstract A one-piece polymethylmethacrylate intraocular lens having an optic with an optic profile and a pair of haptics each extending from the optic within the optic profile and each with a medial segment of variably reduced cross-sectional area.
Inventors
- 👤 Michael A. Southard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:04
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/16; A61F2/1613; A61F2002/1681; A61F2002/1683
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
109 words
An intraocular lens, comprising: a. an optic having a width and a length perpendicular to said width; and b. at least one haptic extending from the optic such that it does not intend beyond the width of the optic, the at least one haptic having i. a proximal segment having a first length and a radius of curvature of approximately 21.5 millimeters, ii. a distal segment having a second length that is approximately 2.8 times the first length and having a radius of curvature of between 4.5 millimeters and 5.0 millimeters and iii. a medial segment of varying cross-sectional area having a radius of curvature of approximately 1.3 millimeters.
Claim 2
Dependent Claim
109 words
An intraocular lens, comprising: a. an optic having a width and a length perpendicular to said width; and b. at least one haptic extending from the optic such that it does not intend beyond the width of the optic, the at least one haptic having i. a proximal segment having a first length and a radius of curvature of approximately 21.5 millimeters, ii. a distal segment having a second length that is approximately 2.8 times the first length and having a radius of curvature of between 4.5 millimeters and 5.0 millimeters and iii. a medial segment of varying cross-sectional area having a radius of curvature of approximately 1.3 millimeters.
Claim 3
Dependent Claim
18 words
The intraocular lens of claim 1 wherein the optic is approximately between 4.5 and 7.0 millimeters in diameter.
Claim 4
Dependent Claim
15 words
The intraocular lens of claim 2 wherein the optic is approximately 5.75 millimeters in diameter.
Claim 5
Dependent Claim
18 words
The intraocular lens of claim 1 wherein the lens is approximately between 10.5 and 12.5 millimeters in diameter.
Claim 6
Dependent Claim
20 words
The intraocular lens of claim 1 wherein the overall length of the lens is approximately between 10.5 and 12.5 millimeters.
Claim 7
Dependent Claim
14 words
The intraocular lens of claim 1 wherein the optic and the haptic comprise polymethylmethacrylate.
Claim 8
Dependent Claim
16 words
The intraocular lens of claim 1 wherein a shape of the optic is a closed curve.
Claim 9
Dependent Claim
13 words
The intraocular lens of claim 7 wherein the closed curve is a circle.
Claim 10
Dependent Claim
13 words
The intraocular lens of claim 7 wherein the closed curve is an ellipse.
Claim 11
Dependent Claim
13 words
The intraocular lens of claim 7 wherein the closed curve is an oval.
Claim 12
Dependent Claim
23 words
The intraocular lens of claim 1 wherein the medial segment has a variable cross-sectional area of approximately between 0.04 and 0.01 square millimeters.
Claim 13
Dependent Claim
13 words
The intraocular lens of claim 1 wherein the lens comprises a one-piece lens.
Claim 14
Dependent Claim
13 words
The intraocular lens of claim 1 wherein the lens comprises a multi-piece lens.
Claim 15
Dependent Claim
111 words
A one-piece, polymethylmethacrylate intraocular lens, comprising: a. an optic having a width and a length perpendicular to joint width; and b. a pair of haptics each extending from the optic such that they do not extend beyond the width of the optic and each haptic having i. a proximal segment having a first length and a radius of curvature of approximately 21.5 millimeters, ii. a distal segment having a second length that is approximately 2.8 times the first length and having a radius of curvature of between 4.5 millimeters and 5.0 millimeters and iii. a medial segment of varying cross-sectional area having a radius of curvature of between approximately 1.3 millimeters.
Claim 16
Dependent Claim
111 words
A one-piece, polymethylmethacrylate intraocular lens, comprising: a. an optic having a width and a length perpendicular to joint width; and b. a pair of haptics each extending from the optic such that they do not extend beyond the width of the optic and each haptic having i. a proximal segment having a first length and a radius of curvature of approximately 21.5 millimeters, ii. a distal segment having a second length that is approximately 2.8 times the first length and having a radius of curvature of between 4.5 millimeters and 5.0 millimeters and iii. a medial segment of varying cross-sectional area having a radius of curvature of between approximately 1.3 millimeters.
Claim 17
Dependent Claim
18 words
The intraocular lens of claim 14 wherein the optic is approximately between 4.5 and 7.0 millimeters in diameter.
Claim 18
Dependent Claim
15 words
The intraocular lens of claim 15 wherein the optic is approximately 5.75 millimeters in diameter.
Claim 19
Dependent Claim
18 words
The intraocular lens of claim 14 wherein the lens is approximately between 10.5 and 12.5 millimeters in diameter.
Claim 20
Dependent Claim
17 words
The intraocular lens of claim 17 wherein the overall length of the lens is approximately 12.0 millimeters.
Claim 21
Dependent Claim
16 words
The intraocular lens of claim 14 wherein a shape of the optic is a closed curve.
Claim 22
Dependent Claim
13 words
The intraocular lens of claim 19 wherein the closed curve is a circle.
Claim 23
Dependent Claim
13 words
The intraocular lens of claim 19 wherein the closed curve is an ellipse.
Claim 24
Dependent Claim
13 words
The intraocular lens of claim 19 wherein the closed curve is an oval.
Claim 25
Dependent Claim
23 words
The intraocular lens of claim 14 wherein the medial segments have a variable cross-sectional area of approximately between 0.04 and 0.01 square millimeters.
Claim 26
Dependent Claim
109 words
A multi-piece intraocular lens, comprising: a. an optic having a width and a length perpendicular to said width; and b. a pair of haptics each extending from the optic such that they do not extend beyond the width of the optic and each haptic having i. a proximal segment having a first length and a radius of curvature of approximately 21.5 millimeters, ii. a distal segment having a second length that is approximately 2.8 times the first length and having a radius of curvature of between 4.5 millimeters and 5.0 millimeters and iii. a medial segment of varying cross-sectional area having a radius of curvature of approximately 1.3 millimeters.
Claim 27
Dependent Claim
109 words
A multi-piece intraocular lens, comprising: a. an optic having a width and a length perpendicular to said width; and b. a pair of haptics each extending from the optic such that they do not extend beyond the width of the optic and each haptic having i. a proximal segment having a first length and a radius of curvature of approximately 21.5 millimeters, ii. a distal segment having a second length that is approximately 2.8 times the first length and having a radius of curvature of between 4.5 millimeters and 5.0 millimeters and iii. a medial segment of varying cross-sectional area having a radius of curvature of approximately 1.3 millimeters.
Claim 28
Dependent Claim
18 words
The intraocular lens of claim 24 wherein the optic is approximately between 4.5 and 7.0 millimeters in diameter.
Claim 29
Dependent Claim
15 words
The intraocular lens of claim 25 wherein the optic is approximately 5.75 millimeters in diameter.
Claim 30
Dependent Claim
18 words
The intraocular lens of claim 24 wherein the lens is approximately between 10.5 and 12.5 millimeters in diameter.
Claim 31
Dependent Claim
17 words
The intraocular lens of claim 27 wherein the overall length of the lens is approximately 12.0 millimeters.
Claim 32
Dependent Claim
16 words
The intraocular lens of claim 24 wherein a shape of the optic is a closed curve.
Claim 33
Dependent Claim
13 words
The intraocular lens of claim 29 wherein the closed curve is a circle.
Claim 34
Dependent Claim
13 words
The intraocular lens of claim 29 wherein the closed curve is an ellipse.
Claim 35
Dependent Claim
13 words
The intraocular lens of claim 29 wherein the closed curve is an oval.
Claim 36
Dependent Claim
23 words
The intraocular lens of claim 24 wherein the medial segments have a variable cross-sectional area of approximately between 0.04 and 0.01 square millimeters.
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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) | 1996-03-29 | 1996-09-28 | 1997-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-03-29 | 2000-09-28 | 2001-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-03-29 | 2004-09-28 | 2005-03-30 | $7700.00 | Window Closed / Lapsed |