×

Intraretinal delivery and withdrawal instruments

  • US 5,409,457 A
  • Filed: 12/21/1993
  • Issued: 04/25/1995
  • Est. Priority Date: 11/14/1990
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method for grafting cells into an intraretinal eye area which comprises the steps of:

  • inserting an intraocular delivery and withdrawal instrument into the retinal area of the eye, said instrument comprising an elongated handle having a distal end and a proximal end and shaped and dimensioned to be grasped by the hand of a user and an elongated curved frame extending from the distal end of the handle and having a proximal end; and

    a tip extending from said distal end of the frame;

    said frame and tip being shaped and dimensioned for insertion into an orbit in said insertion direction so as to place said tip adjacent to the retina and pointing in a direction for penetration into the intraocular region of the eye when said tip is moved generally in the medial direction; and

    transferring cells from the instrument into said retinal area to thereby graft the cells into the intraocular eye area.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×