Tool for inserting compressible intraocular lenses into the eye and method
First Claim
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1. A tool for preparing for insertion into an eye an intraocular lens, formed of a compressible material, comprising:
- (a) an elongated hollow chamber comprising a hollow, walled compressing chamber with a loading inlet and an outlet, at least a portion of the compressing chamber decreasing in cross-sectional area in the direction of the outlet;
(b) first plunger means for pushing a compressible intraocular lens introduced into the loading inlet through the compressing chamber toward the outlet end, the plunger means including resilient pushing means for cooperating with the walls of the compressing chamber to compress the lens to a smaller size as the lens is pushed toward the outlet end;
(c) cannula means connected to the outlet of the compressing chamber with an inlet for receiving the compressed intraocular lens from the outlet of the compressing chamber; and
(d) second plunger means for pushing the compressed intraocular lens through the cannula means and into an eye.
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Abstract
The tool and method for preparing for insertion into an eye an intraocular lens formed of a compressible material includes an elongated hollow chamber with an inlet end and an outlet end. An intraocular lens formed of a compressible material is extruded to a smaller size that fits in the elongated chamber by a compresser which includes an outlet adapted to be aligned with the inlet end of the elongated chamber. The extruded intraocular lens is pushed through the elongated chamber from the inlet end through to the outlet end.
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Citations
48 Claims
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1. A tool for preparing for insertion into an eye an intraocular lens, formed of a compressible material, comprising:
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(a) an elongated hollow chamber comprising a hollow, walled compressing chamber with a loading inlet and an outlet, at least a portion of the compressing chamber decreasing in cross-sectional area in the direction of the outlet; (b) first plunger means for pushing a compressible intraocular lens introduced into the loading inlet through the compressing chamber toward the outlet end, the plunger means including resilient pushing means for cooperating with the walls of the compressing chamber to compress the lens to a smaller size as the lens is pushed toward the outlet end; (c) cannula means connected to the outlet of the compressing chamber with an inlet for receiving the compressed intraocular lens from the outlet of the compressing chamber; and (d) second plunger means for pushing the compressed intraocular lens through the cannula means and into an eye. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. A method of preparing an intraocular lens formed of a compressible material for insertion into an eye, comprising the steps of:
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(a) providing a loading chamber, a cannula having a proximal end communicating with said loading chamber and an opposite distal end, an extruding means for extruding a compressible intraocular lens from said loading chamber into said cannula including a first resilient pushing means for cooperating with the walls of the loading chamber to compress the lens to a smaller size as the lens is extruded, and an ejecting means for ejecting the extruded lens out said distal end including a second resilient pushing means, (b) positioning a compressible intraocular lens into said loading chamber, (c) extruding with said extruding means said lens from said loading chamber into said cannula through said proximal end. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48)
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Specification