WO2014195788A1 - Lentille intraoculaire artificielle - Google Patents

Lentille intraoculaire artificielle Download PDF

Info

Publication number
WO2014195788A1
WO2014195788A1 PCT/IB2014/000958 IB2014000958W WO2014195788A1 WO 2014195788 A1 WO2014195788 A1 WO 2014195788A1 IB 2014000958 W IB2014000958 W IB 2014000958W WO 2014195788 A1 WO2014195788 A1 WO 2014195788A1
Authority
WO
WIPO (PCT)
Prior art keywords
anterior
posterior
circumferential groove
lens
implant
Prior art date
Application number
PCT/IB2014/000958
Other languages
English (en)
Inventor
Boris Malyugin
Original Assignee
Boris Malyugin
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Boris Malyugin filed Critical Boris Malyugin
Publication of WO2014195788A1 publication Critical patent/WO2014195788A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
    • A61F2/16—Intraocular lenses
    • A61F2/1613—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus
    • A61F2/1648—Multipart lenses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0008—Fixation appliances for connecting prostheses to the body

Definitions

  • a lens is removed through a circular opening in the anterior wall of the capsular bag (anterior lens capsule), a procedure referred to as anterior capsulophexis.
  • anterior capsulophexis a procedure referred to as anterior capsulophexis.
  • the posterior and lateral walls of the lens capsule usually stay intact during the surgery.
  • a laser is used to make a hole in it and restore the light path to the retina.
  • a typical IOL consists of a central portion having optical power, sometimes variable, and a supporting portion referred to as a haptic element. The latter vary in form but most frequently are two in number positioned contralateral and having a C-shape.
  • the present invention is an intraocular lens implant for implantation within a capsular bag of an eye of a mammal.
  • the intraocular lens implant of the invention can comprise: a lens element having optical power, the lens element including an anterior lens portion and a posterior lens portion connected to the anterior lens portion, the lens element having an optical axis; an anterior circumferential groove formed in the anterior lens portion, the anterior circumferential grove adapted to accept an anterior capsulorhexis edge; a posterior circumferential groove formed in the posterior lens portion, the posterior
  • circumferential groove adapted to accept a posterior capsulorhexis edge; and at least one haptic element extending away from the optical axis, the at least one haptic element adapted to fixate the intraocular lens implant within the capsular bag of the eye of the mammal.
  • the intraocular lens implant of the present invention can comprise: a lens element having optical an anterior lens portion and a posterior lens portion connected to the anterior lens portion, the lens element having an optical axis; an anterior circumferential groove formed in the anterior lens portion, the anterior circumferential grove adapted to accept an anterior capsulorhexis edge; a posterior circumferential groove formed in the posterior lens portion, the posterior circumferential groove adapted to accept a posterior capsulorhexis edge.
  • the anterior circumferential groove formed in the anterior lens portion the anterior circumferential grove adapted to accept an anterior capsulorhexis edge
  • a posterior circumferential groove formed in the posterior lens portion the posterior circumferential groove adapted to accept a posterior capsulorhexis edge.
  • the IOL implant includes at least two haptic elements extending away from the optical axis in a common plane perpendicular to the optical axis and lying between the first plane and the second plane, the at least two haptic elements adapted to arrest the intraocular lens implant within the capsular bag of the eye of the mammal.
  • the intraocular lens implant of the present invention comprises: a lens element having optical power, the lens element including an anterior lens portion and a posterior lens portion, connected to the anterior lens portion, the lens element having an optical axis; an anterior circumferential groove formed in the anterior lens portion, the anterior circumferential grove adapted to accept an anterior capsulorhexis edge; a posterior circumferential groove formed in the posterior lens portion, the posterior circumferential groove adapted to accept a posterior capsulorhexis edge, the posterior circumferential groove connected to the anterior circumferential groove; and at least two haptic elements extending in a common plane perpendicular to the optical axis, the common plane lying between the anterior lens portion and the posterior lens portion, the at least two haptic elements adapted to arrest the intraocular lens implant within the capsular bag of the eye of the mammal.
  • the present invention advantageously prevents opacification of the posterior lens capsule as well as stabilizes the intraocular lens implant.
  • FIG. 1 A and FIG. IB are a side view and a front view, respectively, of an example embodiment of an IOL implant according to the present invention.
  • FIG. 2A and FIG. 2B are a side view and a front view, respectively, of another example embodiment of an IOL implant according to the present invention.
  • FIG. 3 is a schematic diagram representing an example embodiment of circular circumferential grooves of an IOL of the present invention having different radii.
  • FIG. 4 is a schematic diagram representing an example embodiment of oval circumferential grooves of an IOL of the present invention having perpendicular major axes.
  • FIG. 5A and 5B are a side view and a front view, respectively, of another example embodiment of an IOL implant according to the present invention.
  • FIG. 5C and 5D are schematic diagrams of the circumferential grooves of the example embodiment shown in FIG. 5A and FIG. 5B.
  • FIG. 6A through FIG. 6E are schematic diagrams representing steps in a surgical procedure that can be employed to insert the IOL implant of the present invention.
  • the IOL implant 100 comprises a lens element 102 having optical power, the lens element including an anterior lens portion 104 and a posterior lens portion 106, connected to the anterior lens portion 104, the lens element having an optical axis 108.
  • the IOL implant 100 further includes an anterior circumferential groove 1 10 formed in the anterior lens portion 104, the anterior circumferential grove 1 10 adapted to accept an anterior capsulorhexis edge.
  • the IOL implant 100 further includes a posterior circumferential groove 1 12 formed in the posterior lens portion 106, the posterior circumferential groove 1 12 adapted to accept a posterior capsulorhexis edge.
  • the IOL implant 100 further includes at least one haptic element (1 14 or 1 16) extending away from the optical axis 108.
  • Haptic elements are adapted to arrest the intraocular lens implant 100 within the capsular bag of the eye (not shown).
  • haptic elements are adapted to arrest the intraocular lens implant 100 at the equator of the capsular bag.
  • FIG. 2A and FIG. 2B illustrate a side view and a front view, respectively, of another example embodiment of an IOL implant of the present invention, the IOL implant 200.
  • the implant 200 comprises a lens element 202 having optical power, the lens element including an anterior lens portion 204 and a posterior lens portion 206, connected to the anterior lens portion 204, the lens element 202 having an optical axis 208.
  • the IOL implant 200 further includes an anterior circumferential groove 220 formed in the anterior lens portion 206, the anterior circumferential grove adapted to accept an anterior capsulorhexis edge, and a posterior circumferential groove 222 formed in the posterior lens portion 206, the posterior circumferential groove also adapted to accept a posterior capsulorhexis edge.
  • the anterior circumferential groove 220 is connected to the posterior circumferential groove 222 and the two grooves together form a joint groove 224.
  • the joint groove 224 has the width equal to the sum of the widths of the two groves 220 and 222.
  • the implant 200 further includes at least two haptic elements 214 and 216 extending in a common plane perpendicular to the optical axis 208.
  • the common plane lies between the anterior lens portion 204 and the posterior lens portion 206.
  • the haptic elements (214 and 216) are adapted to arrest the intraocular lens implant 200 within the capsular bag of the eye (not shown).
  • haptic elements are adapted to arrest the intraocular lens implant 200 at the equator of the capsular bag.
  • FIG. IB and FIG. 2 A each illustrates an intraocular lens implant (100 or 200) in which the anterior lens portion (104 or 204) and the posterior lens portion (106 or 206) are each spherical convex when viewed along the optical axis
  • the lenses 100 and 200 and their portions need not be spherical convex and can be of any shape suitable for an IOL implant.
  • the anterior circumferential groove 1 10 can be a circle of a first radius when viewed along the optical axis
  • the posterior circumferential groove 1 12 is a circle of a second radius when viewed along the optical axis.
  • the first radius can be different from the second radius.
  • the two radii can be the same.
  • At least one of the anterior circumferential groove (1 10 or 220) and the posterior circumferential groove (1 12 or 222) can be non-circular when viewed along the optical axis.
  • Examples of non-circular circumferential grooves are depicted in FIG. 4, which illustrates the anterior circumferential groove 1 10 as an oval having a first major axis, and the posterior circumferential groove 1 12 as an oval having a second major axis.
  • the first and the second major axes are perpendicular to each other.
  • the anterior circumferential groove 1 10 lies entirely within a first plane
  • the posterior circumferential groove 1 12 lies entirely within a second plane, different from the first plane.
  • at least one of the anterior circumferential groove (110 or 220) and the posterior circumferential groove (1 12 or 222) is non-planar.
  • an implant of this invention is an IOL implant 300 shown in FIG. 5 A through FIG. 5D.
  • the implant 300 comprises a lens element 302 having optical power, the lens element including an anterior lens portion 304 and a posterior lens portion 306, connected to the anterior lens portion 304, the lens element having an optical axis 308.
  • the IOL implant 300 further includes an anterior circumferential groove 310 formed in the anterior lens portion 304, the anterior circumferential grove 310 adapted to accept an anterior capsulorhexis edge.
  • the IOL implant 300 further includes a posterior circumferential groove 312 formed in the posterior lens portion 306, the posterior circumferential groove 312 adapted to accept a posterior capsulorhexis edge.
  • the IOL implant 300 further includes at least one haptic element (314 or 316) extending away from the optical axis 308.
  • Haptic elements are adapted to arrest the intraocular lens implant 300 within the capsular bag of the eye (not shown).
  • haptic elements are adapted to arrest the intraocular lens implant 300 at the equator of the capsular bag.
  • circumferential groove 312 includes a first portion (310a or 312a) connected to a second portion (310b or 312b), non-coplanar with the first portion.
  • the lens element having the optical power can be multifocal, e.g. bifocal.
  • the lens element can be selected to correct a specific medical condition of the patient.
  • lens elements can be aspheric or toric, designed for astigmatism
  • lens elements can have or combined optical features, e.g. be both toric and multifocal, or aspheric-multifocal, or aspheric-toric.
  • optical features e.g. be both toric and multifocal, or aspheric-multifocal, or aspheric-toric.
  • lens elements having optical power are convex, for example spherical convex. These lens elements are converging lens elements, referred to as having "positive" optical power. Diverging lens elements are referred to as having the "negative" optical power. Such lens elements can be spherical concave.
  • capsulehexis refers to a surgical technique used to remove the lens capsule during cataract surgery by means of creating continuous curvilinear capsulotomy of circular shape in the central portion of the lens capsular bag.
  • the surgical implantation technique that can be employed to insert any of the devices disclosed herein is described below with references to FIG. 6A through FIG. 6E.
  • FIG. 6A illustrates a natural state of the capsular bag of an eye of a mammal, e.g. a human, with the lens inside.
  • FIG. 6B illustrates creation of the anterior capsolurhexis opening. The edges if the capsular bag that form the opening are referred to as capsolorhexis edge.
  • FIG. 6B illustrates a capsular bag having a portion of its anterior wall removed to create an anterior capsulorhexis opening. The edge of the anterior capsulorhexis opening is referred herein as anterior capsolorhexis edge.
  • FIG. 6C illustrates the capsular bag having portions of both its anterior wall and its posterior wall removed to create an anterior and a posterior openings.
  • FIG. 6D illustrates an IOL implant of the present invention inserted into the capsular bag.
  • FIG. 6E illustrates both the anterior and the posterior capsulorhexis edges inserted into the circumferential grooves of the IOL implant.
  • lens nucleus and cortical material are removed.
  • the circular capsulorhexis can be performed manually or with a laser.
  • the lens optic By pressing on the lens optic with the instrument introduced through the main or an additional incision, it can be displaced backwards and the posterior capsule is inserted into the posterior lens groove. Then with the same (or different) instrument capsulorhexis edges can be guided into the circumferential grooves.
  • the lens element having an optical power can be spherical biconvex although other configurations and shapes may be employed.
  • the lens element can be constructed of any of the currently used materials for rigid optics such as polymethylmetacrylate (PMMA), or deformable optics such as silicone polymeric materials, acrylic polymeric materials, hydrogel forming polymeric materials and mixtures of these materials.
  • PMMA polymethylmetacrylate
  • deformable optics such as silicone polymeric materials, acrylic polymeric materials, hydrogel forming polymeric materials and mixtures of these materials.
  • the lens element materials used can be coated with chemicals for various purposes, as known in the art.
  • the diameter of the lens element can be variable.
  • the lens element can be designed for monofocal or multifocal purposes.
  • the haptic elements can be constructed from a pliable material, such as PMMA, polypropylene, silicone, or acrylic.
  • the haptic elements can be of various shapes. Two haptic elements can be of different shapes. In example embodiments, the haptic elements can be perforated for both fixation or rotation purposes.

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)

Abstract

L'invention concerne un implant de lentille intraoculaire à implanter dans un sac capsulaire d'un œil. L'implant de lentille (100) comprend un élément de lentille (102) ayant une puissance optique. L'élément de lentille comprend une partie lentille antérieure (104) et une partie lentille postérieure (106). L'implant comprend en outre une rainure circonférentielle antérieure (110) formée dans la partie lentille antérieure et conçue pour accepter un bord de capsulorhexis antérieur, et une rainure circonférentielle postérieure (112) formée dans la partie lentille postérieure et conçue pour accepter un bord de capsulorhexis postérieur. L'implant comprend en outre au moins un élément haptique (114, 116) s'éloignant d'un axe optique (110) de l'élément de lentille, conçu pour arrêter l'implant de lentille intraoculaire dans le sac capsulaire de l'œil.
PCT/IB2014/000958 2013-06-05 2014-06-04 Lentille intraoculaire artificielle WO2014195788A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361831273P 2013-06-05 2013-06-05
US61/831,273 2013-06-05

Publications (1)

Publication Number Publication Date
WO2014195788A1 true WO2014195788A1 (fr) 2014-12-11

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ID=51022360

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2014/000958 WO2014195788A1 (fr) 2013-06-05 2014-06-04 Lentille intraoculaire artificielle

Country Status (1)

Country Link
WO (1) WO2014195788A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5697973A (en) * 1994-09-19 1997-12-16 Peyman; Gholam A. Intraocular silicone lens
US20110251686A1 (en) * 2010-04-12 2011-10-13 Samuel Masket Anti-dysphotopic intraocular lens and method
EP2422746A1 (fr) * 2010-08-26 2012-02-29 Stevens, Julian Douglas Implant intra-oculaire

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5697973A (en) * 1994-09-19 1997-12-16 Peyman; Gholam A. Intraocular silicone lens
US20110251686A1 (en) * 2010-04-12 2011-10-13 Samuel Masket Anti-dysphotopic intraocular lens and method
EP2422746A1 (fr) * 2010-08-26 2012-02-29 Stevens, Julian Douglas Implant intra-oculaire

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