Ophthalmic microsurgical system
First Claim
1. A microcannula based microsurgical system designed to operate within a tissue tract of the eye, comprising:
- a flexible tubular outer sheath with an outer diameter of 250 microns or less, with proximal and distal ends, to fit within the tissue tract;
a proximal connector on the outer sheath for introduction of materials and tools;
and an inner member with a proximal end and a distal tip, wherein the tip is restricted from advancement past a predetermined length from the outer sheath, with the outer sheath and inner member sized such that the inner member fits slidably within the outer sheath and may be removed separately from the outer sheath while in the tissue tract.
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Accused Products
Abstract
An ophthalmic microsurgical system is described for treatment of eye diseases, such as glaucoma, using minimally invasive surgical techniques. The microsurgical system includes a thin walled outer sheath microcannula 1 slidably disposed about an inner member 4, which extends slightly beyond the distal end of the microcannula 1. The inner member 4 may be straight or curved and may optionally include a surgical instrument and/or a sensor or signaling beacon. The microsurgical system is used in a surgical procedure for opening Schlemm'"'"'s Canal to provide drainage of aqueous fluid in order to relieve excess intraocular that results from glaucoma an other diseases of the eye.
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Citations
23 Claims
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1. A microcannula based microsurgical system designed to operate within a tissue tract of the eye, comprising:
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a flexible tubular outer sheath with an outer diameter of 250 microns or less, with proximal and distal ends, to fit within the tissue tract;
a proximal connector on the outer sheath for introduction of materials and tools;
and an inner member with a proximal end and a distal tip, wherein the tip is restricted from advancement past a predetermined length from the outer sheath, with the outer sheath and inner member sized such that the inner member fits slidably within the outer sheath and may be removed separately from the outer sheath while in the tissue tract. - 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)
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Specification