Surgical apparatus and method of use thereof
A surgical apparatus for use in assisting the performance of a procedure on an eye, the eye having a front and rear, a cornea, an iris defining a pupil, and a lens capsule behind the iris. The apparatus has a frame with a front and rear, a first portion and a second portion. The first frame portion has at least one iris engagement portion for being operatively connected to the iris to exert a pressure upon the iris that maintains the pupil in an enlarged state. The second frame portion has a curved edge configured to guide movement of an instrument in a curved path with the first frame portion operatively connected to an iris.
1. A surgical apparatus for use in assisting a performance of a procedure on an eye, the eye having a front and rear, a cornea, an iris defining a pupil, and a lens capsule behind the iris, the apparatus comprising:
a frame having a front and a rear, a first portion and a second portion,
the first frame portion configured for being operatively connected to an iris to exert a pressure upon the iris that maintains the pupil in an enlarged state, and
the second frame portion having a curved edge configured to guide movement of an instrument in a curved path along the curved edge with the first frame portion operatively connected to an iris,
wherein the first frame portion is reconfigurable between a first starting state and a second operative state,
the first frame portion configured to be operatively connected to the iris and in the second operative state configured to exert a pressure upon an iris that maintains the pupil in an enlarged state,
the frame configured so that the second frame portion is urged rearwardly relative to the first frame portion as an incident of the first frame portion being changed from the first starting state into the second operative state.
2. The surgical apparatus as recited in claim 1 wherein the first portion of the frame is substantially rectangular.
3. The surgical apparatus as recited in claim 2 wherein the first portion of the frame has four sides and a pair of opposing iris engagement members on two of the sides.
4. The surgical apparatus as recited in claim 1 wherein the first and second portions of the frame are connected by at least a pair of supports.
5. The surgical apparatus as recited in claim 4 wherein the first portion of the frame is substantially rectangular with four sides and each one of the pair of supports extends from an opposing side.
6. The surgical apparatus as recited in claim 1 wherein the first portion of the frame is substantially rectangular with four sides and each one of the pair of supports extends from an opposing side, the first frame portion including a pair of opposing iris engagement members that are located on the sides from which the supports do not extend.
7. The surgical apparatus as recited in claim 1 wherein the first and second frame portions are unitarily molded.
8. The surgical apparatus as recited in claim 1 wherein the first and second portions of the frame are connected by at least a pair of supports arranged such that the second portion of the frame rotates as the frame is reconfigured from the first starting state into the second operative state.
9. The surgical apparatus as recited in claim 1 wherein the first frame portion defines a plane in the first starting state, the first and second portions of the frame are connected by at least a pair of supports arranged such that the second portion of the frame translates with respect to the plane when the frame is reconfigured from the first starting state into the second operative state.
10. The surgical apparatus as recited in claim 1 wherein the first portion of the frame has a pair of opposing arcuate sides and a pair of opposing substantially flat sides.
11. The surgical apparatus as recited in claim 10 wherein each of the opposing substantially flat sides has an iris engagement member.
12. The surgical apparatus as recited in claim 10 wherein the first and second portions of the frame are connected by at least one support.
13. The surgical apparatus as recited in claim 10 wherein the first and second portions of the frame are connected by a pair of supports.
14. A method of using a surgical apparatus for assisting the performance of a procedure on an eye, the eye having a front and rear, a cornea, an iris defining a pupil, and a lens capsule behind the iris, the method comprising the steps of:
a) obtaining a surgical apparatus in accordance with claim 1 ;
b) inserting the surgical apparatus through an incision in a cornea; and
a) operatively engaging the first frame portion with an iris and changing the frame first portion from the first starting state into the second operative state to thereby urge the second frame portion rearwardly of the first frame portion.