Patent US4911158A successfully refreshed from Google Patents.
US4911158A
Expired / Lapsed
US
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Lens folding block
Assignee: SKIA INTERNATIONAL Inc A CORP OF CALIFORNIA
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Filing: 1989-04-27
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Granted: 1990-03-27
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Expires: 2009-04-27
Abstract
Abstract A centrally apertured vertically slidable pedestal supports a foldable intraocular lens implant in predetermined orientation. A blade tipped arm, axially oriented with respect to the pedestal, is protrudable from within the pedestal in diametric orientation with the supported intraocular lens implant upon downward movement of the pedestal. By contacting diametrically opposed sides of the intraocular lens implant with the jaws of forceps followed by downward movement of the pedestal to protrude the blade tip of the arm, the intraocular lens implant becomes folded within the grasp of the forceps and ready for implantation.
Inventors
- 👤 Gilbert L. Weatherly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:27
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/16; A61F2/1691; A61F2/1662; A61F2/1664
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
115 words
A lens folding block for assisting in the folding of a foldable intraocular lens implant upon placement of the jaws of forceps upon opposed edges of the intraocular lens implant, said lens folding block comprising in combination: (a) a base; (b) an arm extending from said base, said arm including a tip for diametrically contacting the intraocular lens implant; (c) a pedestal for supporting the intraocular lens implant; and (d) means for protruding said tip with respect to said pedestal into contact with the intraocular lens implant to urge upward movement of the intraocular lens implant along a diametric line and resulting in folding of the intraocular lens implant intermediate the jaws of the forceps.
Claim 2
Dependent Claim
115 words
A lens folding block for assisting in the folding of a foldable intraocular lens implant upon placement of the jaws of forceps upon opposed edges of the intraocular lens implant, said lens folding block comprising in combination: (a) a base; (b) an arm extending from said base, said arm including a tip for diametrically contacting the intraocular lens implant; (c) a pedestal for supporting the intraocular lens implant; and (d) means for protruding said tip with respect to said pedestal into contact with the intraocular lens implant to urge upward movement of the intraocular lens implant along a diametric line and resulting in folding of the intraocular lens implant intermediate the jaws of the forceps.
Claim 3
Dependent Claim
21 words
The lens folding block as set forth in claim 1 wherein said pedestal includes a passageway for translatably receiving said arm.
Claim 4
Dependent Claim
34 words
The lens folding block as set forth in claim 2 wherein said pedestal includes a top surface having an aperture for defining the upper opening of said passageway through which said tip is protrudable.
Claim 5
Dependent Claim
44 words
The lens folding block as set forth in claim 3 including at least a pair of studs disposed radially outwardly of said opening and extending from said top surface for guiding the placement of the intraocular lens implant and the jaws of the forceps.
Claim 6
Dependent Claim
18 words
The lens folding block as set forth in claim 1 including means for discouraging protrusion of said tip.
Claim 7
Dependent Claim
21 words
The lens folding block as set forth in claim 5 wherein said pedestal is translatably mounted with respect to said arm.
Claim 8
Dependent Claim
21 words
The lens folding block as set forth in claim 6 wherein said discouraging means urges said pedestal away from said tip.
Claim 9
Dependent Claim
21 words
The lens folding block as set forth in claim 1 including a column extending from said base for supporting said arm.
Claim 10
Dependent Claim
26 words
The lens folding block as set forth in claim 8 including means for translating said pedestal and juxtaposed with respect to said column and said arm.
Claim 11
Dependent Claim
20 words
The lens folding block as set forth in claim 9 including means for biasing said pedestal away from said tip.
Claim 12
Dependent Claim
23 words
The lens folding block as set forth in claim 1 wherein said tip includes a tapered section at the extremity of said arm.
Claim 13
Dependent Claim
17 words
The lens folding block as set forth in claim 11 wherein said tapered section defines a blade.
Claim 14
Independent Claim
104 words
A method for assisting the folding of a foldable intraocular lens implant between the jaws of forceps, said method comprising the steps of: (a) placing an intraocular lens implant upon the top surface of a pedestal with a passageway disposed in the pedestal; (b) engaging opposed sides of an intraocular lens implant with the jaws of the forceps; (c) forcing the intraocular lens implant upwardly between the engaged sides and along a generally diametric line; and (d) folding the intraocular lens implant between the jaws of the forceps by squeezing the jaws of the forceps in combination with exercise of said step of forcing.
Claim 15
Independent Claim
104 words
A method for assisting the folding of a foldable intraocular lens implant between the jaws of forceps, said method comprising the steps of: (a) placing an intraocular lens implant upon the top surface of a pedestal with a passageway disposed in the pedestal; (b) engaging opposed sides of an intraocular lens implant with the jaws of the forceps; (c) forcing the intraocular lens implant upwardly between the engaged sides and along a generally diametric line; and (d) folding the intraocular lens implant between the jaws of the forceps by squeezing the jaws of the forceps in combination with exercise of said step of forcing.
Claim 16
Dependent Claim
23 words
The method as set forth in claim 13 wherein said step of forcing includes the step of protruding a tip from the pedestal.
Claim 17
Dependent Claim
17 words
The method as set forth in claim 14 including the step of discouraging said step of protruding.
Claim 18
Dependent Claim
19 words
The method as set forth in claim 13 including the step of terminating exercise of said step of forcing.
Claim 19
Dependent Claim
26 words
The method as set forth in claim 13 including the step of resisting exercise of said step of forcing during exercise of said step of placing.
Claim 20
Dependent Claim
35 words
The method as set forth in claim 17 wherein said step of forcing includes the step of translating a blade disposed within the passageway relative to the pedestal to protrude the blade from the pedestal.
Claim 21
Dependent Claim
24 words
The method as set forth in claim 18 wherein said step of translating includes the step of repositioning the pedestal relative to the blade.
Claim 22
Dependent Claim
26 words
The method as set forth in claim 19 wherein the blade extends from an arm and including the step of supporting the arm upon a base.
Claim 23
Dependent Claim
22 words
The method as set forth in claim 20 wherein said translating step includes the step of translating the pedestal along the arm.
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) | 1993-03-26 | 1993-09-25 | 1994-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-26 | 1997-09-25 | 1998-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-26 | 2001-09-25 | 2002-03-27 | $7700.00 | Window Closed / Lapsed |