CA2469467A1 - Accommodating intraocular lens - Google Patents

Accommodating intraocular lens Download PDF

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Publication number
CA2469467A1
CA2469467A1 CA002469467A CA2469467A CA2469467A1 CA 2469467 A1 CA2469467 A1 CA 2469467A1 CA 002469467 A CA002469467 A CA 002469467A CA 2469467 A CA2469467 A CA 2469467A CA 2469467 A1 CA2469467 A1 CA 2469467A1
Authority
CA
Canada
Prior art keywords
lens
elastically
flexible
shaping
accommodating
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002469467A
Other languages
French (fr)
Other versions
CA2469467C (en
Inventor
Valdemar Portney
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Johnson and Johnson Surgical Vision Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2469467A1 publication Critical patent/CA2469467A1/en
Application granted granted Critical
Publication of CA2469467C publication Critical patent/CA2469467C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • A61F2/1602—Corrective lenses for use in addition to the natural lenses of the eyes or for pseudo-phakic eyes
    • 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
    • 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
    • A61F2/1624—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 having adjustable focus; power activated variable focus means, e.g. mechanically or electrically by the ciliary muscle or from the outside
    • A61F2/1635—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 having adjustable focus; power activated variable focus means, e.g. mechanically or electrically by the ciliary muscle or from the outside for changing shape
    • 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
    • A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2210/0014—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof using shape memory or superelastic materials, e.g. nitinol
    • 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
    • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
    • A61F2250/0018—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in elasticity, stiffness or compressibility

Abstract

An accommodating intraocular lens (20) is disclosed that provides vision accommodation in response to contraction of an eye's ciliary muscle (60). This lens comprises a deformable elastic dynamic lens (26) comprising a lensshapinging member (30, 34) in contact with peripheral edge regions of the dynamic lens for enabling compressive deformation thereof for changing the lens surface curvature. Included are an elastically flexible coilmember (32) mounted around the lens-shaping member. A first lens-supporting member (52) has a proximal end region engaging the flexible coil member and a second lenssupporting member (54) has a proximal end region connected to the lens- shaping member. For implantation in the capsular bag of an aphakic eye, both lens-support ing members (52, 54) either attach to the capsular bag or bear directly against opposite regions of the ciliary body. For implatation in the anterior chamber of a phakic eye the first lens-supporting member (52) bears directly against the cil iary body the second one (54) attaching the lens (20) to the iris (66).

Claims (27)

  1. Claim 1. An accommodating intraocular lens fox im-planting in an individual's eye, which comprises:
    a. a deformable elastic dynamic lens having a non-accommodating surface curvature;
    b. a lens-shaping member having flexible portions in contact with peripheral edge regions of said dy-namic lens for enabling deformation of said lens for changing said lens surface curvature;
    c. an elastically flexible member in contact with said lens-shaping member flexible portions; and d.first and second lens supporting members, said first lens supporting member having a proximal end region engaging said flexible member, said second lens supporting member having a proximal end region connected to said lens shaping member, and a distal end region of at least said first lens supporting member being configured for en-gaging, upon implanting the intraocular lens in an individual's eye, regions of said,individual's eye that are responsive to contraction and re-laxation of a ciliary muscle disposed in a ciliary body region of said individual's eye.
  2. Claim 2. The accommodating intraocular lens as claimed in Claim 1, wherein said first and second lens supporting members are configured so that their re-spective distal end regions are aligned with generally opposite regions of said ciliary body when the in-traocular lens is implanted in said individual's eye.
  3. Claim 3. The accommodating intraocular lens as claimed in Claim 1, wherein each of said first and second lens supporting members are relatively rigid as compared with said dynamic lens,
  4. Claim 4. The accommodating intraocular lens as claimed in Claim 1, wherein said proximal end region of the second lens supporting member is rigidly connected to said lens-shaping member.
  5. Claim 5. The accomodating intraocular lens as claimed in Claim 1, wherein said lens-shaping member and said second lens supporting member are constructed in one piece.
  6. Claim 6. The accommodating intraocular lens as claimed in Claim 1, wherein said elastically flexible member is formed in a coil to encircle said flexible por-tions of the lens-shaping member.
  7. Claim 7. The accommodating intraocular lens as claimed in Claim 6, wherein said intraocular lens is im-planted in an individual's capsular bag from which a natural lens has been removed and wherein the distal end regions of said first and second lens supporting members are configured for direct contact with said ciliary body.
  8. Claim 8. The accommodating intraocular lens as claimed in Claim 7, wherein said elastically flexible member and said flexible portion of the lens-shaping mem-ber each have a larger diameter unstressed condition and a smaller diameter stressed condition, and wherein said elastically flexible member and said flexible portion of the lens-shaping member are configured for elastically returning to said larger diameter, unstressed conditions, thereby enabling the outer diameter of said dynamic lens to elastically expand to its non-accommodating condition, in response to the reduction of said compressive force applied to distal ends of said first and second lens sup-port members by said ciliary body when said ciliary mus-cle relaxes.
  9. Claim 9. The accommodating intraocular lens as claimed in Claim 7, wherein said elastically flexible member is constructed for tightening and squeezing said flexible portions of the lens-shaping member, thereby re-ducing the outer diameter of said dynamic lens by said lens-shaping member and increasing said surface curvature of said dynamic lens for achieving accommodation, in re-sponse to a compressive force applied to distal ends of said first and second lens support members by said ciliary body when said ciliary muscle contracts.
  10. Claim 10. The accommodating intraocular lens as claimed in Claim 6, wherein said intraocular lens is im-planted in an individual's capsular bag from which a natural lens has been removed and wherein the distal ends of said first and second lens supporting members are con-figured for attachment to the capsular bag adjacent to opposing ciliary body-connected zonules.
  11. Claim 11. The accommodating intraocular lens as claimed in Claim 10, wherein said elastically flexible member is configured for being pulled to a larger diame-ter, stressed condition and said flexible portions of the said lens-shaping member is configured for elastically returning to a larger diameter, unstressed condition, thereby enabling the outer diameter of said dynamic lens to attain its unstressed, non-accommodating condition, in response to an increase in tension applied to distal end regions of said first and second lens supporting members by said zonules when said ciliary muscle relaxes.
  12. Claim 12. The accommodating intraocular lens as claimed in Claim 10, wherein said elastically flexible member is constructed for elastically contracting from said larger diameter stressed condition to a smaller di-ameter unstressed condition, thereby squeezing said flexible portions of the lens-shaping member to a smaller diameter stressed condition and reducing the outer diame-ter of said dynamic lens and increasing said surface cur-vature for achieving accommodation, in response to a re-lease of tension applied to distal end regions of said first and second lens supporting members by said zonules when said ciliary muscle contracts.
  13. Claim 13. The accommodating intraocular lens as claimed in Claim 6, wherein said intraocular lens is im-planted in a an anterior chamber of an individual's eye, wherein the distal end region of said first lens support-ing member is configured for direct contact with said ciliary body, and wherein said second lens supporting member is configured for attachment to an iris region of said eye.
  14. Claim 14. The accommodating intraocular lens as claimed in Claim 13, wherein said elastically flexible member and said flexible portion of the lens-shaping mem-ber each have a larger diameter unstressed condition and a smaller diameter stressed condition, and wherein said elastically flexible member and said flexible portion of the lens-shaping member are configured for elastically returning to said larger diameter, unstressed conditions, thereby enabling the outer diameter of said dynamic lens to elastically expand to its non-accommodating condition, in response to the reduction of said compressive force applied to distal end region of said first lens support-ing member by said ciliary body when said ciliary muscle relaxes.
  15. Claim 15. The accommodating intraocular lens as claimed in Claim 13, wherein said elastically flexible member is constructed for tightening and squeezing said flexible portions of the lens-shaping member, thereby re-ducing the outer diameter of said dynamic lens by said lens-shaping member and increasing said surface curvature of said dynamic lens for achieving accommodation, in re-sponse to a compressive force applied to the distal end region of said first lens supporting member by said ciliary body when said ciliary muscle contracts.
  16. Claim 16. The accommodating intraocular lens as claimed in Claim 1, wherein said compressible member is constructed from a shape memory metallic alloy.
  17. Claim 17. The accommodating intraocular lens as claimed in Claim 1, wherein said dynamic lens is formed from a silicone or acrylic material.
  18. Claim 18. The accommodating intraocular lens as claimed in Claim 1, wherein said lens shaping member and said first and second lens supporting members are formed from polymethyl methacrylate.
  19. Claim 19. The accommodating intraocular lens as claimed in Claim 1, wherein said second lens supporting member includes a static, non-accommodating lens having an optical axis aligned with an optical axis of said dy-namic lens.
  20. Claim 20. An accommodating intraocular lens for im-planting in an individual's eye, which comprises:
    a. a deformable elastic dynamic lens having a non-accommodating surface curvature;
    b. a lens-shaping member having flexible portions in contact with peripheral edge regions of said dy-namic lens for enabling deformation of said lens for changing said lens surface curvature;
    c. an elastically flexible member in contact with said lens-shaping member flexible portions, said elastically flexible member being formed in a coil to encircle said flexible portions of the lens-shaping member; and d.first and second lens supporting members, said first lens supporting member having a proximal end region engaging said flexible member, said second lens supporting member having a proximal end region connected to said lens shaping member, distal end regions of said first and second lens supporting members being configured for direct contact, upon implanting the intraocular lens in an individual's capsular bag from which a natural lens has bean removed individual's eye, with op-posing ciliary body regions of said individual's eye, said ciliary body regions being responsive to contraction and relaxation of a ciliary mus-cle.
  21. Claim 21. The accommodating intraocular lens as claimed in Claim 24, wherein said elastically flexible member and said flexible portion of the lens-shaping mem-ber each have a larger diameter unstressed condition and a smaller diameter stressed condition, and wherein said elastically flexible member and said flexible portion of the lens-shaping member are configured for elastically returning to said larger diameter, unstressed conditions, thereby enabling the outer diameter of said dynamic lens to elastically expand to its non-accommodating condition, in response to the reduction of said compressive force applied to distal ends of said first and second lens sup-port members by said ciliary body when said ciliary mus-cle relaxes, and wherein said elastically flexible member is constructed for tightening and squeezing said flexible portions of the lens-shaping member, thereby reducing the outer diameter of said dynamic lens by said lens-shaping member and increasing said surface curvature of said dy-namic lens for achieving accommodation, in response to a compressive force applied to distal ends of said first and second lens support members by said ciliary body when said ciliary muscle contracts.
  22. Claim 22. The accommodating intraocular lens as claimed in Claim 24, wherein each of said first and sec-and lens supporting members are relatively rigid as com-pared with said dynamic lens.
  23. Claim 23. An accommodating intraocular lens for im-planting in an individual's eye, which comprises:
    a. a deformable elastic dynamic lens having a non-accommodating surface curvature;
    b. a lens-shaping member having flexible portions in contact with peripheral edge regions of said dy-namic lens for enabling deformation of said lens for changing said lens surface curvature;
    c. an elastically flexible member in contact with said lens-shaping member flexible portions, said elastically flexible member being formed in a coil to encircle said flexible portions of the lens-shaping member; and e.first and second lens supporting members, said first lens supporting member having a proximal end region engaging said flexible member, said second lens supporting member having a proximal end region connected to said lens shaping member, distal end regions of said first and second lens supporting members being configured for attach-ment, when said intraocular lens is implanted in an individual's capsular bag from which a natural lens has been removed, to the capsular bag adja-cent opposing ciliary body-connected zonules.
  24. Claim 24. The accommodating intraocular lens as claimed in Claim 23, wherein said elastically flexible member is configured for being pulled to a larger diame-ter, stressed condition and said flexible portions of the said lens-shaping member is configured for elastically returning to a larger diameter, unstressed condition, thereby enabling the outer diameter of said dynamic lens to attain its unstressed, non-accommodating condition, in response to an increase in tension applied to distal end regions of said first and second lens supporting members by said zonules when said ciliary muscle relaxes, and wherein said elastically flexible member is constructed for elastically contracting from said larger diameter stressed condition to a smaller diameter unstressed con-dition, thereby squeezing said flexible portions of the lens-shaping member to a smaller diameter stressed condi-tion and reducing the outer diameter of said dynamic lens and increasing said surface curvature for achieving ac-commodation, in response to a release of tension applied to distal end regions of said first and second lens sup-porting members by said zonules when said ciliary muscle contracts.
  25. Claim 25. The accommodating intraocular lens as claimed in Claim 23, wherein each of said first and sec-ond lens supporting members are relatively rigid as com-pared with said dynamic lens, and wherein said second lens supporting member is rigidly connected to said lens-shaping member.
  26. Claim 26. An accommodating intraocular lens for im-planting in an individual's eye, which comprises:
    a. a deformable elastic dynamic lens having a non-accommodating surface curvature;
    b. a lens-shaping member having flexible portions in contact with peripheral edge regions of said dy-namic lens for enabling deformation of said lens for changing said lens surface curvature;
    c. an elastically flexible member in contact with said lens-shaping member flexible portions, said elastically flexible member being formed in a coil to encircle said flexible portions of the lens-shaping member; and d. first and second lens supporting members, said first lens supporting member having a proximal end region engaging said flexible member, said second lens supporting member having a proximal end region connected to said lens shaping member, distal end region of said first lens supporting member being configured for direct contact, when said intraocular lens is implanted in an anterior chamber of an individual's eye, with said ciliary body, and wherein said second lens supporting member is attached to an iris region of said eye.
  27. Claim 27. The accommodating intraocular lens as claimed in Claim 26, wherein said elastically flexible member and said flexible portion of the lens-shaping mem-ber each have a larger diameter unstressed condition and a smaller diameter stressed condition, and wherein said elastically flexible member and said flexible portion of the lens-shaping member are configured for elastically returning to said larger diameter unstressed conditions, thereby enabling the outer diameter of said dynamic lens to elastically expand to its non-accommodating condition, in response to the reduction of said compressive force applied to distal end region of said first lens support-ing member by said ciliary body when said ciliary muscle relaxes, and wherein said elastically flexible member is constructed for tightening and squeezing said flexible portions of the lens-shaping member, thereby reducing the outer diameter of said dynamic lens by said lens-shaping member and increasing said surface curvature of said dy-namic lens for achieving accommodation, in response to a compressive force applied to the distal end region of said first lens supporting member by said ciliary body when said ciliary muscle contracts.
CA2469467A 2001-12-10 2002-12-09 Accommodating intraocular lens Expired - Fee Related CA2469467C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/016,705 2001-12-10
US10/016,705 US7097660B2 (en) 2001-12-10 2001-12-10 Accommodating intraocular lens
PCT/US2002/039428 WO2003049646A2 (en) 2001-12-10 2002-12-09 Accommodating intraocular lens

Publications (2)

Publication Number Publication Date
CA2469467A1 true CA2469467A1 (en) 2003-06-19
CA2469467C CA2469467C (en) 2011-05-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA2469467A Expired - Fee Related CA2469467C (en) 2001-12-10 2002-12-09 Accommodating intraocular lens

Country Status (6)

Country Link
US (1) US7097660B2 (en)
EP (1) EP1450731A2 (en)
JP (1) JP2005511201A (en)
AU (1) AU2002357127A1 (en)
CA (1) CA2469467C (en)
WO (1) WO2003049646A2 (en)

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