Surgical instrument and method for cutting the lens of an eye
First Claim
1. A ophthalmic surgical instrument for cutting the lens of an eye comprising:
- a first support member having first and second ends;
a second support member having first and second ends;
said support members being interconnected for movement between an open position and a closed position;
a wire loop extending from said first end of said first support member; and
a plate member interconnected to said first end of said second support member and being disposed adjacent to said wire loop, such that in said open -position of said support members, said wire loop is spaced apart from said plate member to receive the lens therebetween and in the closed position of said support members, said wire loop contacts said plate member to cut the lens disposed between said wire loop and said plate member by pressing the lens against said plate member and cutting the lens with said wire loop.
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Accused Products
Abstract
An ophthalmic surgical instrument (10) for cutting the lens (76) of an eye (70) includes first (12) and second (14) handle members which are interconnected for movement between an open position and a closed position. A wire loop (20) extends from the first end (12a) of the first handle member (12). A plate member (22) is interconnected to the first end (14a) of the second handle member (14) and is disposed adjacent the wire loop (20). In the open position of the handle members (12, 14), the wire loop (20) is spaced apart from the plate member (22) to receive the lens (76) therebetween. In the closed position of the handle members (12, 14), the wire loop (20) contacts the plate member (22) to cut the lens (76) disposed therebetween as the wire loop (20) presses the lens (76) against the plate member (22) to thereby cut the lens (76 ).
43 Citations
19 Claims
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1. A ophthalmic surgical instrument for cutting the lens of an eye comprising:
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a first support member having first and second ends; a second support member having first and second ends; said support members being interconnected for movement between an open position and a closed position; a wire loop extending from said first end of said first support member; and a plate member interconnected to said first end of said second support member and being disposed adjacent to said wire loop, such that in said open -position of said support members, said wire loop is spaced apart from said plate member to receive the lens therebetween and in the closed position of said support members, said wire loop contacts said plate member to cut the lens disposed between said wire loop and said plate member by pressing the lens against said plate member and cutting the lens with said wire loop. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An ophthalmic surgical instrument for cutting the lens of an eye comprising:
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a first handle member having first and second ends; a second handle member having first and second ends; said handle members being adapted for support in a hand of a user wherein said first ends of said handle members are hingedly attached and said second ends of said handle members are spaced apart for movement between an open position and a closed position; a wire having first and second ends, said wire ends interconnected to said first end of said first handle member to form a loop; and a plate member interconnected to said first end of said second handle member, said plate member including a groove for receiving said wire loop, and being disposed to mate with said wire loop when said handle members are in said closed position to cut the lens disposed between said wire loop and said plate member by pressing the lens against said plate member to thereby cut a semicircular portion of the periphery of the lens with said wire loop, said wire loop being spaced apart from said plate member in said open position of said handle members to thereby receive the lens between said wire loop and said plate member. - View Dependent Claims (10, 11, 12, 13)
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14. A method for cutting a lens of an eye comprising the steps of:
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forming an incision in the eye;
posterior attachments;gaining access to the lens; inserting into the anterior chamber of the eye a surgical instrument having a wire loop extending from a first handle member and a plate member extending from a second handle member such that the lens portion is disposed between the wire loop and the plate member; closing the handle members such that the wire loop presses the lens portion against the plate member to thereby cut a semicircular portion of the periphery of the lens; and removing the cut portion of the lens through the incision. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification