发明授权
US4994081A Method for locating on a cornea an artificial lens fabricated from a collagen-hydrogel for promoting epithelial cell growth 失效
在角膜上定位由胶原 - 水凝胶制成的用于促进上皮细胞生长的人造镜片的方法

  • 专利标题: Method for locating on a cornea an artificial lens fabricated from a collagen-hydrogel for promoting epithelial cell growth
  • 专利标题(中): 在角膜上定位由胶原 - 水凝胶制成的用于促进上皮细胞生长的人造镜片的方法
  • 申请号: US511847
    申请日: 1990-04-16
  • 公开(公告)号: US4994081A
    公开(公告)日: 1991-02-19
  • 发明人: Linda CiverchiaDennis D. Shepard
  • 申请人: Linda CiverchiaDennis D. Shepard
  • 申请人地址: CA Santa Maria
  • 专利权人: CBS Lens
  • 当前专利权人: CBS Lens
  • 当前专利权人地址: CA Santa Maria
  • 主分类号: A61F2/00
  • IPC分类号: A61F2/00 A61F2/14 A61F2/16 A61L27/24
Method for locating on a cornea an artificial lens fabricated from a
collagen-hydrogel for promoting epithelial cell growth
摘要:
A method for locating on the cornea an optical lens having a preselected geometric shape and power wherein the optical lens is formed of a collagen-hydrogel for promoting epithelial cell growth is shown. The method comprises the steps of: removing from Bowman's membrane over the area of the pupillary zone of the eye a portion of the corneal epithelium; forming on Bowman's membrane a "V" shaped annular groove having a diameter substantially equal to the maximum geometrical dimensions of the optical lens and a preselected depth; dissecting the peripheral edge of the groove forming a wing of corneal tissue having a preselected length; placing the posterior surface of the optical lens on the anterior surface of Bowman's membrane and positioning the outer edge of the optical lens under the corneal wing, and affixing the optical lens to Bowman's membrane over the pupillary zone of the eye to maintain the same on the cornea with the corneal wing overlying the edge of the optical lens. With the edge of the lens in contact with corneal epithelim, the collagen-hydrogel for promoting epithelial cell growth interacts with epithelial cells during a healing period to promote growth thereof over, and attach to, the anterior surface of the optical lens implanting the same under corneal epithelium.
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