Patent EP0337390B1 successfully refreshed from Google Patents.
EP0337390B1
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EP
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Intraocular optical system
Assignee: Czech Academy of Sciences
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Filing: 1989-04-11
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Granted: 1993-02-17
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Expires: 2009-04-11
Abstract
No abstract record available.
Inventors
- 👤 Jiri Dipl.-Ing. Sulc
- 👤 Zuzana Dipl.-Ing. Krcová
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 15:59
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/16; A61F2/1694; A61F2/1613; A61F2/1624; A61F2/1629; A61F2/1648
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
227 words
Intraocular optical system (7) for insertion into the capsula lentis after removal of the natural eye lens, comprising at least one lens (4,5) arranged such as to be placed in the main axis of the eye and provided such as to move axially at contraction and release of the accommodation muscles of the eye and thus to change its position between the retina and the cornea, and an elastically deformable element (3) to be deformably actuated by the contraction of the accommodation muscles of the eye, characterized in that said intraocular system (A) is a hollow body having an outer shape following the inner shape of the capsula lentis (6) at least in the main lines for leaning against the inner wall of the capsula lentis (6) and keeping it in a moderately tensioned state, and (B) comprises - a front element (1), - a rear element (2), wherein said elastically deformable element (3) is provided between the front element (1) and the rear element (2), and - one to four lenses (4, 5) in total arranged such as to be placed in the main axis of the eye, at least one of the lenses (4, 5) being provided such as to move axially at contraction and release of the accommodation muscles of the eye and thus to change its position between the retina and the cornea.
Claim 2
Dependent Claim
44 words
The intraocular optical system (7) according to claim 1, characterized in that at least one of the lenses (4, 5) is fixed in the axis of the system by the elastically deformable element (3) and/or the front element (1) and/or the rear element (2).
Claim 3
Dependent Claim
49 words
The intraocular optical system (7) according to claim 1 or 2, characterized in that the front element (1) and/or the rear element (2) and/or the elastically deformable element (3) are rings or parts of hollow bodies of revolution such as a sphere, a paraboloid, an ellipsoid, and the like.
Claim 4
Dependent Claim
44 words
The intraocular optical system (7) according to one of claims 1 to 3, characterized in that one or more of the lenses (4, 5) are connected to or integrated with the front element (1) or the rear element (2) to form one single piece.
Claim 5
Dependent Claim
36 words
The intraocular optical system (7) according to one of claims 1 to 4, characterized in that the front element (1) and/or the rear element (2) are connected to or integrated with the elastically deformable element (3).
Claim 6
Dependent Claim
31 words
The intraocular optical system (7) according to one of claims 1 to 5, characterized in that the elastically deformable element (3) is provided with openings (9) allowing the flow of liquid.
Claim 7
Dependent Claim
27 words
The intraocular optical system (7) according to one of claims 1 to 6, characterized in that the elastically deformable element (3) is provided with a circumferential slot.
Claim 8
Dependent Claim
51 words
The intraocular optical system according to one of claims 1 to 7, characterized in that the front element (1) or the front lens (5) and/or the back lens (4) are provided with an opening (8) having a diameter which is smaller than that of the hole in the capsula lentis (6).
Claim 9
Dependent Claim
35 words
The intraocular optical system (7) according to one of claims 1 to 8, characterized in that the elastically deformable element (3) has elasticity in directions parallel to the optical or geometrical axis of the system.
Claim 10
Dependent Claim
34 words
The intraocular optical system (7) according to one of claims 1 to 9, characterized in that the elastically deformable element (3) has the form of fibers, strips, a spiral or of a corrugated body.
Claim 11
Dependent Claim
39 words
The intraocular optical system (7) according to one of claims 1 to 10, characterized in that at least one of the lenses (4, 5) is placed outside the geometrical center of the system and of the capsula lentis (6).
Claim 12
Dependent Claim
94 words
The intraocular optical system (7) according to one of claims 1 to 11, characterized in that it consists partially or in its entirety of one or more biocompatible materials, particularly of silicon elastomers, hydrogels, preferably elastic hydrogels having shape memory, partially dried hydrogels hydrophilized at the surface, a material having a glass transition temperature (T g ) of -5 to 45 °C and/or a material the glass transition temperature of which is adjusted in the state before insertion into the eye to a required value, e.g. by swelling a hydrogel into a non-equilibrium state.
Claim 13
Dependent Claim
33 words
The intraocular optical system (7) according to claim 12, characterized in that it is present before insertion into the eye in a deformed state of rod-like shape having a diameter < 3 mm.
Claim 14
Dependent Claim
36 words
The intraocular optical system (7) according to one of claims 1 to 13, characterized in that at least one of the lenses (4, 5) is made from a synthetic polymer having a refractive index ≧ 1.336.
Claim 15
Dependent Claim
39 words
The intraocular optical system (7) according to one of claims 1 to 14, characterized in that it is made partially or in its entirety from a homopolymer or a copolymer on the basis of acrylates, methacrylates and/or hydroxyethyl methacrylate.
Claim 16
Dependent Claim
38 words
The intraocular optical system (7) according to one of claims 1 to 15, characterized in that one or all of the lenses (4, 5) are provided with a center hole having a diameter of 0.05 to 1 mm.
Claim 17
Dependent Claim
30 words
The intraocular optical system (7) according to one of claims 1 to 16, characterized in that it contains drugs which are capable of being released into the eye after implantation.
References Cited (Backward Citations)
No citation records indexed.
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