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US 11,109,958 B2Granted
Posterior chamber phakic intraocular lens
AssigneePhysiol
InventorsChristophe Pagnoulle, Suad Redzovic
Life of this patent
Estimating the term…
Abstract
A posterior chamber phakic intraocular lens comprising a central optical part, a peripheral haptic part comprising a plurality of support elements arranged to lie on a ciliary zonule of an eye, and at least one flexible haptic comprising a reticulated distal region arranged to lay into a ciliary sulcus of the eye.
Claims20
A posterior chamber phakic intraocular lens comprising:
- an anterior surface and a posterior surface;
- a central optical part comprising a lens, and extending radially relative to an optical axis directed from said anterior surface to said posterior surface;
- a peripheral haptic part extending radially outward relative to said central optical part, said peripheral haptic part comprising:
- a proximal portion extending circumferentially around said central optical part;
- a distal portion at least around said proximal portion and comprising a plurality of support elements extending both radially outward and posteriorly relative to said central optical part, said support elements being configured for supporting said phakic intraocular lens on a ciliary zonule when the phakic intraocular lens is in the implantation position in an eye;
- said central optical part and said peripheral haptic part forming a dome;
- at least one flexible haptic comprising:
- a proximal region at least around said proximal portion of said peripheral haptic part;
- a distal region at least around said proximal region and comprising a plurality of distal elongated flexible footplates that extend at least partially radially outward relative to said central optical part, and that border distal cavities extending between said anterior and said posterior surfaces,
- wherein the peripheral haptic part has a thickness, measured in parallel to the optical axis, larger, on average, than that of the flexible haptic,
- a first diameter of said phakic intraocular lens being strictly greater than a second diameter of an optical assembly consisting of said central optical part and said peripheral haptic part, measured perpendicularly to said optical axis;
- at least one of said distal elongated flexible footplates extending substantially between said second and said first diameters;
- said distal region comprising a distal border connecting at least two of said distal elongated flexible footplates, said distal border being configured for stabilizing said phakic intraocular lens into a ciliary sulcus when the phakic intraocular lens is in an implantation position in the eye,
- wherein said proximal region of the at least one flexible haptic comprises a plurality of proximal elongated flexible footplates that extend at least partially radially outward and posteriorly relative to said central optical part, and that border proximal cavities extending between said anterior and said posterior surfaces,
- wherein said proximal elongated flexible footplates of said proximal region are oriented and substantially parallel to a first direction, and/or said distal elongated flexible footplates of said distal region are oriented and substantially parallel to a second direction, and
- wherein said first direction is transverse to said second direction and said first and said second directions form a smaller angle between them of between 80° and 140°.
13 more elements
Dependencies are inferred from the claim text.