Patent US2137343A successfully refreshed from Google Patents.
Patent US4463458A successfully refreshed from Google Patents.
US4463458A
Expired / Lapsed
US
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Intraocular lens and implantation method
Assignee: VISION LABORATORIES Inc
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Filing: 1982-11-08
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Granted: 1984-08-07
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Expires: 2002-11-08
Abstract
Abstract The risk of surgical injury to the eye during implantation of an intraocular lens is reduced by pre-positioning either all or a major portion of the lens assembly in the anterior chamber of the eye prior to extraction of the cataract.
Inventors
- 👤 Steven Seidner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:48
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/16; A61F9/00; A61F9/007; A61F2002/1681
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
102 words
A method of implanting an intraocular lens which comprises, making a surgical incision in the eye, inserting at least a portion of an intraocular lens assembly in the anterior chamber of the eye, pre-positioning at least one haptic associated with said lens assembly so that it is located at substantially the final position in said anterior chamber which it will occupy when the optic section of said lens assembly is in a position to function as a replacement for a surgically removed natural lens of the eye or portion thereof, and thereafter surgically removing at least a portion of said natural lens.
Claim 2
Independent Claim
102 words
A method of implanting an intraocular lens which comprises, making a surgical incision in the eye, inserting at least a portion of an intraocular lens assembly in the anterior chamber of the eye, pre-positioning at least one haptic associated with said lens assembly so that it is located at substantially the final position in said anterior chamber which it will occupy when the optic section of said lens assembly is in a position to function as a replacement for a surgically removed natural lens of the eye or portion thereof, and thereafter surgically removing at least a portion of said natural lens.
Claim 3
Dependent Claim
23 words
The method of claim 1, wherein the entire intraocular lens assembly is inserted in said anterior chamber prior to said surgical removal step.
Claim 4
Dependent Claim
26 words
The method of claim 1, wherein all of the haptics associated with said lens assembly are pre-positioned at substantially said final position in said anterior chamber.
Claim 5
Dependent Claim
53 words
The method of claim 1, wherein said lens assembly comprises a frame section and a separate optic section, said frame section and the haptics associated therewith are pre-positioned in said anterior chamber prior to said surgical removal step and said optic section is inserted into said frame section following said surgical removal step.
Claim 6
Dependent Claim
98 words
The method of claim 1, wherein said lens assembly comprises a frame section, an optic section and a hinge integrally connecting said frame section and said optic section, the entire intraocular lens assembly is inserted into the anterior chamber of the eye prior to said surgical removal step and said optic section is first moved about said hinge, subsequent to said pre-positioning step, to a location where it does not interfere with said surgical removal step and finally moved about said hinge to a position where it can function as a replacement for the surgically removed natural lens.
Claim 7
Dependent Claim
32 words
The method of claim 5, wherein all of the haptics associated with said lens assembly are pre-positioned at substantially said final position in said anterior chamber prior to said surgical removal step.
Claim 8
Dependent Claim
47 words
The method of claim 6, wherein said hinge has elastic memory and said first movement of said optic section about said hinge is in response to a force applied to said optic section and said final movement is in response to said elastic memory of said hinge.
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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) | 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 |