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 packaging and delivering an IOL having an optic and leading and trailing haptics to a patient's eye, comprising:
pre-loading an IOL in an insertion system, the insertion system having a handpiece defining therein an IOL holding station for receiving the IOL and an actuator adapted to displace the IOL from the holding station in a distal direction, the insertion system further including a delivery tube adjacent the IOL holding station having an open proximal end for receiving the IOL displaced by the actuator;
inserting a tool through an opening in the IOL holding station and manually repositioning a trailing haptic of the IOL over the IOL optic;
displacing the IOL with the actuator in the distal direction, the IOL holding station further comprising a first internal feature that repositions the leading haptic of the IOL over the IOL optic and a second internal feature maintains the trailing haptic positioned over the IOL optic as the IOL is displaced; and
the delivery tube having an internal load chamber shaped to receive the IOL from the holding station and maintain the leading and trailing haptics positioned over the IOL optic.
2. The method of claim 1 , wherein the opening is sized to receive a cannula of a viscoelastic applicator.
3. The method of claim 1 , further including a retaining pin extending from the holding station into contact with the IOL to prevent movement of the IOL during repositioning of the trailing haptic of the IOL over the IOL optic.
4. The method of claim 1 , wherein the second internal feature that maintains the trailing haptic positioned over the IOL optic comprises a deflector rail that projects into the load chamber of the delivery tube.
5. The method of claim 1 , wherein the actuator includes a detent feature that signifies to a user when the actuator has displaced the IOL into the load chamber, the method including displacing the IOL into the load chamber until the detent signifies its position, pausing, then displacing the IOL farther through the delivery tube into a patient's eye.