Ophthalmic device and method of manufacture and use
First Claim
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1. A torsion resistant scleral-tensioning stent for positioning in a tunnel formed intrasclerally in a globe of an eye, comprising:
- a generally t-shaped body having a cross portion with a top surface, a bottom surface and a leg portion extending substantially perpendicularly from a side surface of said cross portion;
said leg portion having a top surface, a bottom surface with an arcuate portion and a substantially planar portion at an end of said leg portion distal from said cross portion;
wherein said arcuate portion has a radius of curvature from about 8 mm to about 9 mm;
wherein said top surfaces of said cross portion and said leg portion define a t-shaped configuration; and
wherein said bottom surface of said cross portion is dimensioned to be disposed external to said tunnel for resisting torsional forces on said leg portion.
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Abstract
A torsion resistant scleral-tensioning stent useful in the correction of presbyopia and further including a method of chronic ocular fluid control utilizing such device.
124 Citations
16 Claims
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1. A torsion resistant scleral-tensioning stent for positioning in a tunnel formed intrasclerally in a globe of an eye, comprising:
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a generally t-shaped body having a cross portion with a top surface, a bottom surface and a leg portion extending substantially perpendicularly from a side surface of said cross portion; said leg portion having a top surface, a bottom surface with an arcuate portion and a substantially planar portion at an end of said leg portion distal from said cross portion; wherein said arcuate portion has a radius of curvature from about 8 mm to about 9 mm; wherein said top surfaces of said cross portion and said leg portion define a t-shaped configuration; and wherein said bottom surface of said cross portion is dimensioned to be disposed external to said tunnel for resisting torsional forces on said leg portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A scleral-tensioning stent for positioning in a tunnel formed intrasclerally in a globe of an eye, comprising:
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an elongated portion having a top surface and a bottom surface, the bottom surface forming an arc along a portion of a length of the elongated portion; a flange, integrally formed with and at a first distal end of the elongated portion and oriented perpendicularly to the elongated portion, having a top surface, a bottom surface and a length wider than a width of the first end of the elongated portion;
the flange is flat on the bottom surface;wherein the bottom surface of a second end of the elongated portion, opposite the first distal end, forms a flat surface; and wherein said top surfaces of said elongated portion and said flange define a t-shaped configuration. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A torsion resistant scleral-tensioning stent for positioning in a tunnel formed intrasclerally in a globe of an eye, comprising:
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a generally capital t-shaped body having a cross portion with a top surface, a flat bottom surface and a leg portion extending substantially perpendicularly from a side surface of said cross portion; said leg portion having a top surface, a bottom surface with an arcuate portion and a substantially planar portion at an end of said leg portion distal from said cross portion; wherein said top surfaces of said cross portion and said leg portion define a t-shaped configuration; and wherein said bottom surface of said cross portion is dimensioned to be disposed external to said tunnel for resisting torsional forces on said leg portion.
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16. A scleral-tensioning stent for positioning in a tunnel formed intrasclerally in a globe of an eye, comprising:
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an elongated portion having a top surface and a bottom surface, the bottom surface forming an arc along a portion of a length of the elongated portion; a flange, integrally formed with and at a first end of the elongated portion and oriented perpendicularly to the elongated portion, having a top surface, a bottom surface and a length wider than a width of the first end of the elongated portion to form the shape of a capital T; wherein said top surfaces of said elongated portion and said flange define a t-shaped configuration; and wherein the top surface of the elongated portion is narrower than the bottom surface of the elongated portion.
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Specification