Surgical instrument and method of cutting a lens of an eye
First Claim
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1. A surgical instrument for cutting a lens of an eye comprising:
- a first body member having a front end and having a second member movably supported in said first body member for movement between a forward position and a retracted position,said first body member having at said front end a flange extending transversely thereto and said flange having a concave front face, anda snare loop extending outwardly through said front end of said first body member and said flange and having one end attached to one of said first and second body members and the other end attached to said second member, whereby said loop can be enabled to ensnare a lens of an eye and to cut the same while the lens of the eye is supported by said concave front face of said flange.
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Abstract
A surgical instrument for cutting a lens of a human eye inside the eye for removal through a small incision in the cornea. The instrument has a flange at its front end and a snare loop extending through the flange for ensaring the lens and cutting the same while the lens is supported by the flange.
76 Citations
11 Claims
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1. A surgical instrument for cutting a lens of an eye comprising:
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a first body member having a front end and having a second member movably supported in said first body member for movement between a forward position and a retracted position, said first body member having at said front end a flange extending transversely thereto and said flange having a concave front face, and a snare loop extending outwardly through said front end of said first body member and said flange and having one end attached to one of said first and second body members and the other end attached to said second member, whereby said loop can be enabled to ensnare a lens of an eye and to cut the same while the lens of the eye is supported by said concave front face of said flange. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of cutting a lens of an eye comprising:
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moving the lens of the eye into the anterior chamber of the eye; inserting into the eye the front end of a first body member of a surgical instrument having a second member movably supported in the first body member for movement manually between a foward position and a retracted position, the first body member having at the front end thereof a flange extending transversely thereto, the surgical instrument having a snare loop extending outwardly through the front end of the first body member and the flange and having one end attached to one of the first and second body members and the other end attached to the second member; surrounding the lens of the eye with the snare loop and the flange; and moving the second member in the first body member to diminish the size of the snare loop, thereby pressing the lens of the eye against the flange and cutting the lens of the eye with the snare loop. - View Dependent Claims (11)
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Specification