US4463457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intraocular lens and method of positioning the same in an eye
Assignee: Individual
•
Filing: 1982-09-24
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Granted: 1984-08-07
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Expires: 2002-09-24
Abstract
Abstract An intraocular lens and method of positioning the same in an eye in which the lens includes a layer of material which is soluble in the eye for stiffening the position-fixation members of the lens during insertion thereof into the eye.
Inventors
- 👤 Charles D. Kelman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:32
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/16; A61F2002/1681; A61F2002/1683; A61F2002/16903; A61F2250/00; A61F2250/0014; A61F2250/003; A61F2250/0031
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
85 words
An intraocular lens comprising: a lens body; position-fixation means having a first portion extending from said lens body and having a second portion remote from said lens body and extending transversely of said first portion for positioning said lens body within an eye; and a substantially planar layer of material which is soluble in the eye extending from said lens body to said remote portion of said position-fixation means substantially filling the space therebetween, thereby stiffening said position-fixation means during insertion thereof into the eye.
Claim 2
Dependent Claim
85 words
An intraocular lens comprising: a lens body; position-fixation means having a first portion extending from said lens body and having a second portion remote from said lens body and extending transversely of said first portion for positioning said lens body within an eye; and a substantially planar layer of material which is soluble in the eye extending from said lens body to said remote portion of said position-fixation means substantially filling the space therebetween, thereby stiffening said position-fixation means during insertion thereof into the eye.
Claim 3
Dependent Claim
43 words
An intraocular lens in accordance with claim 1 in which said first portion of said position-fixation means is a stem portion and in which said remote portion of said position-fixation means is a limb portion having a pair of spaced eye contact portions.
Claim 4
Dependent Claim
27 words
An intraocular lens in accordance with claim 2 which includes a pair of stem portions and a pair of limb portions having four spaced eye contact portions.
Claim 5
Dependent Claim
25 words
An intraocular lens in accordance with claim 1 in which said layer of material is a layer of at least a component of human blood.
Claim 6
Dependent Claim
19 words
An intraocular lens in accordance with claim 4 in which said layer of material is a layer of fibrin.
Claim 7
Dependent Claim
59 words
An intraocular lens in accordance with claim 1 in which the material in said layer of material is (a) non-toxic and otherwise compatible with the fluid in the human eye, (b) soluble in the fluid in the eye (c) dryable from a liquid state into a semi-rigid or rigid state and capable of adhering to and/or encapsulating the lens.
Claim 8
Dependent Claim
67 words
An intraocular lens comprising: a lens body; position-fixation means extending from said lens body and having a portion remote from said lens body for positioning said lens body within an eye; and a layer of gelatin material which is soluble in the eye extending from said lens body to said remote portion of said position-fixation means, thereby stiffening said position-fixation means during insertion thereof into the eye.
Claim 9
Dependent Claim
67 words
An intraocular lens comprising: a lens body; position-fixation means extending from said lens body and having a portion remote from said lens body for positioning said lens body within an eye; and a layer of gelatin material which is soluble in the eye extending from said lens body to said remote portion of said position-fixation means, thereby stiffening said position-fixation means during insertion thereof into the eye.
Claim 10
Independent Claim
112 words
A method of positioning an intraocular lens in an eye, the lens comprising a lens body and position-fixation means having a first portion extending from said lens body and having a second portion remote from said lens body and extending transversely of said first portion for positioning said lens body within the eye, comprising: applying to said lens a substantially planar layer of material which is soluble in the eye extending from said lens body to said remote portion of said position-fixation means for substantially filling the space therebetween to stiffen said lens; inserting said lens into the eye through an opening in the eye; and seating said lens in the eye.
Claim 11
Independent Claim
112 words
A method of positioning an intraocular lens in an eye, the lens comprising a lens body and position-fixation means having a first portion extending from said lens body and having a second portion remote from said lens body and extending transversely of said first portion for positioning said lens body within the eye, comprising: applying to said lens a substantially planar layer of material which is soluble in the eye extending from said lens body to said remote portion of said position-fixation means for substantially filling the space therebetween to stiffen said lens; inserting said lens into the eye through an opening in the eye; and seating said lens in the eye.
Claim 12
Dependent Claim
49 words
A method in accordance with claim 8 in which the step of applying to said lens a layer of material comprises applying to said lens a layer of wet material and which includes the step of drying said material to stiffen said lens before insertion thereof into the eye.
Claim 13
Dependent Claim
50 words
A method in accordance with claim 8 in which the step of applying to said lens a layer of material comprises applying to said lens a layer of wet material which includes the step of permitting said material to harden to stiffen said lens before insertion thereof into the eye.
References Cited (Backward Citations)
US4174543A
Cited
US4240163A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-08-07 | 1988-02-06 | 1988-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-07 | 1992-02-06 | 1992-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-07 | 1996-02-06 | 1996-08-07 | $7700.00 | Window Closed / Lapsed |