Intraocular lens injector assembly including a shuttle and method of using same
View Patent ↗An intraocular lens (IOL) injector assembly comprising an injector body having a shuttle reception opening defined at least in part by a first sidewall and a second sidewall, and a shuttle comprising a first wing including a first portion of a shuttle lumen wall and a second wing including a second portion of a shuttle lumen wall. The first wing and the second wing are coupled together by a hinge. When in a closed state, the first portion of the shuttle lumen wall and the second portion of the shuttle lumen wall define at least a portion of an operative shuttle lumen. The shuttle and sidewalls are configured such that the first wing and the second wing interfere with the first sidewall and the second sidewall, respectively, as the shuttle passes through the shuttle reception opening, such that the closed state of the shuttle is attained.
1. A method of assembling an intraocular lens (IOL) injector, comprising:
providing an injector body having a plunger and a shuttle reception opening that is formed into and along a length of the injector body, and is defined at least in part by a first sidewall and an opposed second sidewall;
providing a shuttle that is a separate piece from the injector body and is insertable into the shuttle reception opening, the shuttle comprising:
a first wing including a first portion of a shuttle lumen wall;
a second wing including a second portion of a shuttle lumen wall, the first wing and the second wing being coupled together by an at least one hinge; and
a frame comprising a handle for facilitating insertion of the shuttle into the shuttle reception opening, the handle extending between ends of the shuttle and connecting handle attachment portions formed at the ends of the frame, the handle being disposed above and between the first and second wings to permit the wings to move between an open state and a closed state; and
inserting the shuttle into the shuttle reception opening, the shuttle, the first sidewall, and the opposed second sidewall being sized and shaped such that the first wing and the second wing interfere with the first sidewall and the opposed second sidewall, respectively, and
wherein, upon insertion and when in the closed state, the first portion of the shuttle lumen wall and the second portion of the shuttle lumen wall define at least a portion of an operative shuttle lumen that is sized for receiving and holding the IOL.
2. The method of claim 1 , wherein the first wing comprises a first interference feature, the second wing comprises a second interference feature, the first sidewall comprises a third interference feature and the opposed second sidewall comprises a fourth interference feature.
3. The method of claim 1 , wherein each of the wings and each of the sidewalls comprises at least one interference feature.
4. The method of claim 2 wherein, during the step of inserting, interfering the first interference feature with the third interference feature and interfering the second interference feature with the fourth interference feature.
5. The method of claim 2 , wherein each of the first, second, third, and fourth interference features is a ramp.
6. The method of claim 3 , wherein the at least one interference feature is a ramp.
7. The method of claim 1 , wherein the shuttle is in the closed state prior to the interference between the wings and the side walls.
8. The method of claim 7 , wherein, as the shuttle is inserted into the shuttle reception opening, the closed state of the shuttle is attained.
9. The method of claim 1 , wherein the plunger includes a nozzle integrally formed therewith.
10. The method of claim 1 , wherein the open state in which the IOL is configured to be maintained in the shuttle is in a substantially unstressed state.
11. The method of claim 1 , wherein the shuttle comprises a locking feature to maintain the shuttle in the closed state.