Intraocular lens transfer case
View Patent ↗An intraocular lens (IOL) transfer case for transferring an IOL to an injection cartridge includes a lens holder for holding the IOL. The lens holder includes a bore. Folding members within the lens holder are configured to fold the IOL into a partially folded position when the IOL is slid through the bore across the folding members. The IOL transfer case also includes an interface configured to removably connect to an injection cartridge. The interface is positioned to deliver the IOL in the partially folded position within the injection cartridge when the interface is connected to the injection cartridge. The IOL transfer case also includes a plunger connected to the lens holder and configured to push the IOL in the partially folded position through the bore to deliver the IOL into the injection cartridge.
1. An intraocular lens (IOL) transfer case for transferring an IOL to an injection cartridge, comprising:
a lens holder for holding the IOL including a bore;
an inner surface of the bore comprising folding members configured to fold the IOL into a partially folded position when the IOL is slid through the bore across the folding members;
an interface configured to removably connect to an injection cartridge while the injection cartridge is separate from a handpiece that facilitates injection of the IOL from the injection cartridge into a patient's eye, wherein the interface is positioned to deliver the IOL in the partially folded position into the injection cartridge when the interface is connected to the injection cartridge and the injection cartridge is configured to disconnect from the interface while leaving the IOL in the partially folded position to allow the injection cartridge to be connected to a handpiece such that the IOL can be injected from the injection cartridge into a patient's eye; and
a plunger connected to the lens holder and configured to push the IOL through the bore, across the folding members, and into the partially folded position to deliver the IOL into the injection cartridge, wherein a longitudinal axis of the plunger is substantially aligned with a longitudinal axis of the injection cartridge.
2. The IOL transfer case of claim 1 , wherein the folding members comprise at least one ramp asymmetrically positioned within the bore.
3. The IOL transfer case of claim 1 , further comprising a cap, the cap configured to hold the IOL in a rest position.
4. The IOL transfer case of claim 3 , wherein the cap is frictionally engaged on a top of the lens holder.
5. The IOL transfer case of claim 3 , wherein the cap urges the IOL against the folding members when depressed and slides the IOL across the folding members when turned.
6. The IOL transfer case of claim 1 , wherein the plunger comprises a thumb slide used to advance the plunger through the bore.
7. The IOL transfer case of claim 1 , wherein the interface comprises a recess generally conforming to a shape of the injection cartridge.
8. The IOL transfer case of claim 1 , wherein the interface comprises locking features configured to lock the injection cartridge in position when the interface is connected to the injection cartridge.