Instrument for folding and inserting anterior chamber intraocular lenses
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 31, 2002
Grant Date -
N/A
app pub date -
Oct 17, 2000
filing date -
Oct 17, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
There is described an instrument for double folding an elastically deformable intraocular lens (IOL) into a general C-shape for insertion through a small incision into the anterior chamber of a patient's eye for controlled unfolding. The instrument comprises an elongate, slender IOL insertion tube having an IOL receiving station located in the tube adjacent a cutaway opening. A support element is provided for holding a central optic region of an IOL received in the IOL receiving station against an inner surface of the tube during the double folding of the IOL. An IOL double folding member installed on the tube has a converging recess facing the IOL receiving station, the recess being along the longitudinal tube axis and having an IOL discharge opening facing the insertion tube distal end. In one version, the IOL double folding member is moved along the insertion tube to cause double folding of the IOL held in the IOL receiving station; in another version, the IOL is moved through the insertion tube into the double folding member that is fixed to the tube. A disposal IOL insertion tip is attached at the distal end of the insertion tube and is sized for passing through an ocular incision no greater than about 3.2 mm.
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