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Hingeless intraocular lens microcartridges

  • US 6,143,000 A
  • Filed: 12/18/1996
  • Issued: 11/07/2000
  • Est. Priority Date: 09/30/1992
  • Status: Expired due to Term
First Claim
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1. A lens cartridge for use with a surgical device for implantation of a deformable intraocular lens into an eye through a relatively small incision made in the ocular tissue, said lens cartridge comprising:

  • a lens holding portion having a lens receiving portion configured for receiving and holding the deformable intraocular lens; and

    a nozzle portion connected to and extending from said lens holding portion, said lens holding portion having a lens delivery passageway extending therethrough, said lens holding portion and said nozzle portion defining a one-piece lens cartridge,wherein said lens delivery passageway is defined by a continuous walled annulus, and said lens cartridge is configured so that the deformable intraocular lens can be loaded into said lens delivery passageway from an end of said lens cartridge,wherein said lens receiving portion has an oval shaped barrel configuration; and

    wherein said lens receiving portion is provided with a longitudinal slot provided through a wall portion thereof to allow the deformable intraocular lens to be loaded through a side of said lens cartridge, said lens receiving portion including a pair of longitudinal grooves provided in said lens delivery passageway and located adjacent longitudinal side edges of said longitudinal slot said longitudinal grooves being defined by said longitudinal side edges extending inwardly into said lens delivery passageway.

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