Pre-loaded IOL insertion system
View Patent ↗A system for easily transferring an intraocular lens (IOL) from an inserter into a patient's eye. The system includes an inserter handpiece with a holding station for receiving or storing an IOL. The IOL may be pre-loaded within the holding station during manufacture, and the inserter handpiece coupled to a delivery tube so that the entire system is ready for use by a surgeon to implant an IOL. The IOL may have an optic and leading and trailing haptics coupled to the optic, and the holding station may be capable of manipulating the haptics as desired to facilitate transfer of the IOL through the delivery tube into the eye. For instance, the holding station may fold one or both of the haptics over the optic. Preferably, the holding station maintains the haptics in their folded positions during transfer of the IOL into the delivery tube. The holding station desirably maintains the IOL in a relaxed configuration during storage. A small opening on one side may be provided to introduce a narrow tool for folding one of the haptics over the optic.
1. A method of assembling an IOL insertion system, comprising:
providing a handpiece defining therein a holding station for receiving the IOL, the holding station comprising a base for receiving an IOL and a cover that fits over the base and including structure for contacting the IOL, the cover being hinged to the base to enable it to be folded open for introduction of the IOL to the base, the holding station further including an open distal end;
providing a delivery tube having an open proximal end and a distal tapered end, an exterior of the delivery tube being sized and shaped to fit within a cavity defined by the hinged holding station cover and base;
folding open the holding station cover;
placing an IOL in the holding station base;
positioning the delivery tube in the cavity defined by the holding station;
folding closed the holding station cover over the base to capture the IOL and the delivery tube between the cover and base with the open proximal end thereof in registration with the open distal end of the holding station.
2. The method of claim 1 , further including inserting a tool through an opening in the IOL holding station and manually repositioning a trailing haptic of the IOL over the IOL optic, wherein the opening is sized to receive a cannula of a viscoelastic applicator.
3. The method of claim 2 , further including displacing the IOL with a handpiece actuator through the holding station and delivery tube, the IOL holding station further including internal features that reposition the leading haptic of the IOL over the IOL optic as the IOL is displaced in the distal direction and maintain the trailing haptic positioned over the IOL optic.