Ocular implant insertion apparatus and methods
An exemplary ocular implant insertion system includes a case and a preloaded ocular implant insertion apparatus. The apparatus includes first and second movable structures that move the ocular implant in a predetermined sequence. The respective configurations of the case and the ocular implant insertion apparatus are such that the ocular implant insertion apparatus is not removable from the case when the ocular implant insertion apparatus is in the pre-use state and is removable after the first movable structure has moved at least a portion of the optical implant.
1. An intraocular lens insertion apparatus, comprising:
an outer body including a lens placement section and a nozzle and defining a lens movement direction;
an intraocular lens, having an optic with a diameter and haptics with respective free ends, stored in the lens placement section in such a manner that the optic diameter is perpendicular to the lens movement direction, one of the haptics is a proximal haptic and one of the haptics is a distal haptic; and
a plunger, at least a portion of which is carried within the outer body, that is movable relative to the outer body and which has a distal region that defines a longitudinal axis, the distal region including
a bottom wall having an upper surface and defining a width in a direction transverse to the longitudinal axis of the distal region,
a lens contact surface extending downwardly from the bottom wall upper surface,
a top wall defining a width in a direction transverse to the longitudinal axis of the distal region that is less than the width of the bottom wall, and
a lateral wall that extends from the bottom wall to the top wall in a direction perpendicular to the optic diameter that is perpendicular to the lens movement direction,
the top wall, bottom wall and lateral wall together defining a recess that is located above the bottom wall, that extends proximally from the lens contact surface, that has a first lateral side that is open, a second lateral side that is closed by the lateral wall, and an open distal end, and that is configured to hold a portion of the proximal haptic when the proximal haptic is bent such that the free end is positioned over the optic.
2. An ocular implant insertion apparatus as claimed in claim 1 , wherein
the plunger includes a slanted wall that defines the proximal end of the recess.
3. An ocular implant insertion apparatus as claimed in claim 2 , wherein
the slanted wall is oriented at a non-perpendicular angle with respect to the longitudinal axis of the distal region.
4. An ocular implant insertion apparatus as claimed in claim 2 , wherein
the slanted wall extends from the lateral wall to the first lateral side that is open.
5. An ocular implant insertion apparatus as claimed in claim 2 , wherein
the width of the top wall at the open distal end of the recess is less than the width of the top wall at the proximal end of the recess.
6. An ocular implant insertion system as claimed in claim 1 , further comprising:
a slider movable relative to the plunger from a pre-use slider position to a second slider position.
7. An ocular implant insertion apparatus as claimed in claim 6 , wherein
the proximal haptic includes a free end; and
movement of the slider from the pre-use slider position to the second slider position moves the free end of the proximal haptic over the optic.
8. An ocular implant insertion apparatus as claimed in claim 6 , wherein
the proximal haptic includes a free end; and
movement of the slider from the pre-use slider position to the second slider position moves the free end of the distal haptic over the optic.
9. An ocular implant insertion apparatus as claimed in claim 1 , wherein
the plunger includes a rotatable handle.
10. An ocular implant insertion apparatus as claimed in claim 1 , wherein
the plunger includes a thumb rest.
11. An ocular implant insertion apparatus as claimed in claim 1 , wherein
the lens contact surface is planar.
12. An ocular implant insertion apparatus as claimed in claim 1 , wherein
the lateral wall defines a lateral side of the distal region of the plunger.
13. An ocular implant insertion apparatus as claimed in claim 1 , wherein
the lateral wall defines a distal end; and
the top wall defines a distal end that extends distally beyond the distal end of the lateral wall.
14. An ocular implant insertion apparatus as claimed in claim 1 , further comprising:
a tapered transition proximal of the nozzle.
15. An ocular implant insertion apparatus as claimed in claim 1 , wherein
the outer body comprises main body and an insertion tube mounted on the main body.
16. An ocular implant insertion apparatus as claimed in claim 15 , wherein
the insertion tube includes the nozzle.
17. An ocular implant insertion apparatus as claimed in claim 1 , wherein
the lateral wall extends distally beyond the lens contact surface.