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US 9,427,153 B1Granted
Corneal cover and method of use thereof
OwnerThomas P. Hullinventor
Life of this patent
Estimating the term…
Abstract
A corneal cover for placement on a patient's eye during eye surgery. A generally concave central arcuate portion has a first radius of curvature. A generally concave peripheral arcuate portion has a second radius of curvature larger than the first radius of curvature. One of a stem projecting from the peripheral arcuate portion, and a lip projecting from an outer periphery is provided to grasp the corneal cover, with a tool or manually, to place it on the eye and to remove it from the eye. The corneal cover has substantially no corrective power. The corneal cover is made of a hydrophobic material so it does not need to be irrigated during surgery.
Claims29
A corneal cover for placement on an eye of a patient during eye surgery, the corneal cover comprising:
- a central arcuate portion having a first radius of curvature, the first radius of curvature being between approximately 7 mm and approximately 8.5 mm, the central arcuate portion having a generally concave lower surface and a generally convex upper surface, the generally concave lower surface being adapted to substantially conform to a generally convex upper surface of a cornea of the patient's eye, and to substantially cover the cornea of the patient's eye;
- a peripheral arcuate portion having a second radius of curvature, the second radius of curvature being between approximately 11 mm and approximately 13 mm, the peripheral arcuate portion having a generally concave lower surface, a generally convex upper surface, and an outer periphery, the generally concave lower surface being adapted to substantially conform to a generally convex upper surface of at least a portion of a sclera of the patient's eye, and to substantially cover the at least the portion of the sclera of the patient's eye;
- and
- a lip projecting from at least a portion of the outer periphery of the peripheral arcuate portion;
- wherein the corneal cover is configured without a corrective power to correct vision of the patient;
- and
- wherein the corneal cover is made of a hydrophobic material.
4 more elements
A corneal cover for placement on an eye of a patient during eye surgery, the corneal cover comprising:
- a central arcuate portion having a first radius of curvature, the central arcuate portion having a generally concave lower surface and a generally convex upper surface, the generally concave lower surface being adapted to substantially conform to a generally convex outer surface of a cornea of the patient's eye, and to substantially cover the cornea of the patient's eye;
- a peripheral arcuate portion having a second radius of curvature, the second radius of curvature being greater than the first radius of curvature, the peripheral arcuate portion being configured to substantially cover at least a portion of a sclera of the patient's eye, and having at least a generally concave lower surface and a generally convex upper surface, the generally concave lower surface being adapted to substantially conform to a generally convex outer surface of the at least the portion of hall the sclera of the patients eye;
- and
- a stem projecting from an outer periphery of the peripheral arcuate portion, the stem being configured to be grasped by one of a hand and a tool, for one of placement on and removal from the patient's eye;
- wherein the corneal cover has a corrective power of between approximately −4 diopters and +4 diopters;
- and
- wherein the corneal cover is made of a gas impermeable hydrophobic material.
4 more elements
A method of performing a surgery on a surgical site in a patient's eye, the method comprising:
- utilizing a corneal cover, the corneal cover including:
- a central arcuate portion having a first radius of curvature, the first radius of curvature being between approximately 7 mm and approximately 8.5 mm, the central arcuate portion having a generally concave lower surface and a generally convex upper surface, the generally concave lower surface being adapted to substantially conform to a generally convex outer surface of a cornea of the patient's eye, and to substantially cover the cornea of the patient's eye;
- a peripheral arcuate portion having a second radius of curvature, the second radius of curvature being between approximately 11 mm and approximately 13 mm the peripheral arcuate portion having a generally concave lower surface and a generally convex upper surface, the generally concave lower surface being adapted to substantially conform to a generally convex outer surface of at least a portion of a sclera of the patient's eye, and to substantially cover the at least the portion of the sclera of the patient's eye;
- and
- one of a stem projecting from a selected position on the peripheral arcuate portion and a lip projecting from at least a portion of an outer periphery of the peripheral arcuate portion;
- wherein the corneal cover has a corrective power of substantially 0 diopters;
- and wherein the corneal cover is made of a hydrophobic material;
- preparing the patient's eye for the surgery;
- installing the corneal cover on the patient's eye by grasping the one of the stem and the lip with one of a tool and a hand and placing the corneal cover on the patient's eye;
- making at least one incision in a portion of the patient's sclera not covered by the peripheral arcuate portion;
- inserting at least one surgical instrument into the at least one incision;
- observing the surgical site through the central arcuate portion and the patient's cornea;
- and
- performing the surgery with the at least one surgical tool.
11 more elements
A method of performing a surgery on a surgical site in a patient's eye, the method comprising:
- utilizing a corneal cover, the corneal cover including:
- a central arcuate portion having a first radius of curvature, the central arcuate portion having a generally concave lower surface and a generally convex upper surface, the generally concave lower surface being adapted to substantially conform to a generally convex outer surface of a cornea of the patient's eye, and to substantially cover the cornea of the patient's eye;
- and
- a peripheral arcuate portion having a second radius of curvature, the peripheral arcuate portion having a generally concave lower surface and a generally convex upper surface, the generally concave lower surface being adapted to substantially conform to a generally convex upper surface of at least a portion of a sclera of the patient's eye, and to substantially cover at the least the portion of the sclera of the patient's eye;
- wherein the corneal cover has a corrective power of between approximately −4 diopters and +4 diopters;
- and
- wherein the corneal cover is made of a hydrophobic material;
- preparing the patient's eye for surgery;
- making at least one incision in a portion of the patient's sclera;
- installing the corneal cover on the patient's eye such that the peripheral arcuate portion of the corneal cover does not cover the at least one incision;
- inserting at least one surgical instrument into the at least one incision;
- observing the surgical site through the central arcuate portion and the patient's cornea;
- and
- performing the surgery with the at least one surgical tool.
11 more elements
Dependencies are inferred from the claim text.