US4159546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intraocular lens
Assignee: IOLAB Corp JOHNSON & JOHNSON INTERMEDICS INTRAOCULAR Inc AND INTERMEDICS Inc
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Filing: 1977-06-15
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Granted: 1979-07-03
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Expires: 1997-06-15
Abstract
Abstract An improved intraocular lens comprises a plastic lens body and a plurality of flexible and memory retaining non-biodegradable strands, each strand having one end secured to the lens body and the opposite end unsecured. Preferably, the strands are composed of polypropylene. In cataract surgery, following either intra or extra capsular extraction, the lens of the invention is implanted in the posterior chamber.
Inventors
- 👤 Steven P. Shearing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:50
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/16; A61F2/1602; A61F2/161; A61F2002/1681; A61F2002/1683; A61F2210/00; A61F2210/0014
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
126 words
In a cataract surgery following capsular extraction, a method of implanting an intraocular lens having an acrylic resin lens body and first and second flexible and memory retaining curved looped strands wherein one end of each strand is secured adjacent the peripheral edge of said lens body and the other end is unsecured, comprising inserting said lens through the pupil with said first strand first followed by said lens body, directing said first strand against the ciliary body, further urging said lens through the pupil thereby compressing said first strand until said second strand passes through said pupil, and directing said second strand against the ciliary body opposite said first strand, whereby the entire lens is located within the posterior chamber and posterior to the iris.
Claim 2
Dependent Claim
126 words
In a cataract surgery following capsular extraction, a method of implanting an intraocular lens having an acrylic resin lens body and first and second flexible and memory retaining curved looped strands wherein one end of each strand is secured adjacent the peripheral edge of said lens body and the other end is unsecured, comprising inserting said lens through the pupil with said first strand first followed by said lens body, directing said first strand against the ciliary body, further urging said lens through the pupil thereby compressing said first strand until said second strand passes through said pupil, and directing said second strand against the ciliary body opposite said first strand, whereby the entire lens is located within the posterior chamber and posterior to the iris.
Claim 3
Dependent Claim
140 words
In cataract surgery following capsular extraction, a method of implanting an intraocular lens having a plastic lens body and first and second flexible and memory retaining curved looped strands wherein one end of each strand is secured adjacent the peripheral edge of said lens body and the other end is unsecured, comprising inserting said lens through the pupil with said first strand first followed by said lens body, directing said first strand into the posterior chamber, further urging said lens through the pupil and into the posterior chamber thereby compressing said first strand within the posterior chamber until said second strand passes through said pupil and into the posterior chamber, and directing said second strand opposite said first strand in the posterior chamber, whereby the entire lens is located and fixed within the posterior chamber and posterior to the iris.
Claim 4
Dependent Claim
140 words
In cataract surgery following capsular extraction, a method of implanting an intraocular lens having a plastic lens body and first and second flexible and memory retaining curved looped strands wherein one end of each strand is secured adjacent the peripheral edge of said lens body and the other end is unsecured, comprising inserting said lens through the pupil with said first strand first followed by said lens body, directing said first strand into the posterior chamber, further urging said lens through the pupil and into the posterior chamber thereby compressing said first strand within the posterior chamber until said second strand passes through said pupil and into the posterior chamber, and directing said second strand opposite said first strand in the posterior chamber, whereby the entire lens is located and fixed within the posterior chamber and posterior to the iris.
Claim 5
Dependent Claim
43 words
The method of claim 2 wherein said capsular extraction is an extracapsular extraction in which at least a portion of the capsule remains in the posterior chamber and whereby said lens is inserted into said posterior chamber and fixed by the capsule therein.
Claim 6
Dependent Claim
137 words
In cataract surgery following capsular extraction, a method of implanting an intraocular lens having a plastic lens body and a plurality of flexible and memory retaining curved looped strands wherein one end of each strand is secured adjacent the peripheral edge of said lens body and the other end is unsecured, comprising inserting said lens through the pupil with a first one of said strands first following by said lens body, directing said first strand into the posterior chamber, and further urging said lens through the pupil and into the posterior chamber thereby compressing said first strand within the posterior chamber until the other of said strands pass through said pupil and directing said other strands into the posterior chamber, whereby the entire lens is located and fixed within the posterior chamber and posterior to the iris.
Claim 7
Dependent Claim
137 words
In cataract surgery following capsular extraction, a method of implanting an intraocular lens having a plastic lens body and a plurality of flexible and memory retaining curved looped strands wherein one end of each strand is secured adjacent the peripheral edge of said lens body and the other end is unsecured, comprising inserting said lens through the pupil with a first one of said strands first following by said lens body, directing said first strand into the posterior chamber, and further urging said lens through the pupil and into the posterior chamber thereby compressing said first strand within the posterior chamber until the other of said strands pass through said pupil and directing said other strands into the posterior chamber, whereby the entire lens is located and fixed within the posterior chamber and posterior to the iris.
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) | 1982-07-02 | 1983-01-01 | 1983-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-07-02 | 1987-01-01 | 1987-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-07-02 | 1991-01-01 | 1991-07-03 | $7700.00 | Window Closed / Lapsed |