Preloaded IOL injector
View Patent ↗A preloaded intraocular lens injection device includes a retainer for releasably holding an IOL in an unstressed state. The retainer and IOL are removably attached to an injector body and are sealed in the same package for delivery to a surgeon. In an alternate embodiment, the retainer and IOL are coupled together and sealed in one package and the injector body is sealed in a separate package with the surgeon attaching the retainer to the injector body at the time of surgery. To deliver the IOL through the injector body, the retainer is removed from the injector body causing the IOL to release from the retainer and become located in an unstressed state in the injector body.
1. An IOL injector device comprising:
a) an injector body having a lumen with a longitudinal axis;
b) a retainer releasably supporting an IOL, said retainer removably connected to said injector body;
c) a compressor coupled to and moveable relative to the injector body in a direction transverse to the longitudinal axis, the compressor adapted to compress the IOL;
d) a stripper finger fixedly coupled to the injector body and extending between the retainer and the IOL, the compressor moveable independent of the stripper finger,
the injector body, stripper finger and the retainer configured such that, upon removal of said retainer from said injector body, the stripper finger causes the retainer to release said IOL such that said IOL is disposed on said injector body.
2. The injector device of claim 1 wherein said retainer is configured to hold said IOL in an unstressed condition.
3. The injector device of claim 1 wherein said retainer is configured to locate said IOL within said injector body in an unstressed condition.
4. The injector device of claim 1 wherein said stripper finger is attached to a clip adapted to be removably attached to the injector body.
5. The injector device of claim 1 wherein the stripper finger includes a through-hole comprising a viscoelastic access port.
6. The injector device of claim 1 wherein the injector body includes a through-hole comprising a viscoelastic port.
7. The injector device of claim 1 , further comprising a haptic puller having a haptic puller tip positioned in the lumen in the preloaded condition of the IOL injection device, said haptic puller tip configured to engage a leading haptic of the IOL and subsequently straighten the leading haptic within the distal tip of the injector body upon removing the haptic puller from the injector body.
8. The injector device of claim 1 , further comprising a p 1 unger including a plunger tip for engaging the IOL, and a recess formed in said plunger adjacent said plunger tip, said recess adapted to locate a trailing haptic of the IOL rearwardly of said plunger tip.
9. The injector device of claim 1 , further comprising a plunger including proximal and distal shaft lengths, and further comprising one or more spring finger elements attached to said proximal shaft length and operable to apply a biasing force against the interior of the injector body lumen as said plunger is pushed through said injector body.
10. The injector device of claim 9 , wherein said injector body includes proximal and distal ends, and further comprising one or more openings formed therethrough adjacent the proximal end thereof and wherein said one or more spring fingers each have a respective free end which may be removably located in a respective said opening.
11. The injector device of claim 1 , further comprising a plunger including proximal and distal shaft lengths, said proximal shaft length being cooperatively configured with said lumen so as to rotationally fix said plunger with respect to said lumen.
12. The injector device of claim 11 , wherein said proximal shaft length includes a leading edge and said lumen includes a radial extension, and further comprising a helical spring attached to said plunger distal shaft length and compressible between said leading edge and said radial extension as said plunger is advanced through said injector body.
13. The IOL injector device of claim 1 , wherein the injector device and the retainer are configured such that separation of the injector device and the retainer causes the IOL to locate in the lumen.
14. An IOL injection apparatus, comprising:
a) an IOL
b) an injector body comprising a lumen;
c) a retainer adapted to releasably support the IOL, and adapted to removably couple to the injector body, p 1 d) a stripper finger that is distinct from portions of the injector body that define the lumen, rigidly positioned between the retainer and the IOL, the injector body and the retainer configured to couple together such that, when the retainer is supporting the IOL, decoupling of the retainer from the injector body causes the retainer to release said IOL such that the IOL is disposed on said injector body.
15. The injector device of claim 14 , wherein the retainer is configured to hold said IOL in an unstressed condition.
16. The injector device of claim 14 , wherein said retainer and injector body are configured to locate said IOL on said injector body in an unstressed condition after decoupling.