Device for draining aqueous humor in cases of glaucoma
First Claim
1. A drainage device for implanting into a sclera of a patient'"'"'s eye to drain aqueous humor from an anterior chamber of the eye into an intrascleral space the device comprising:
- a tube having a free anterior end at the anterior chamber of the eye and a free rear end at the intrascleral space; and
a cover having a plurality of cuts forming girths, wherein the tube passes through the girths and is retained between the girths and a lower face of the cover, in a manner that the cover bends around the tube to leave an inner concave surface, whereby, with the tube passing through the girths, the anterior and rear ends of the tube remain free and the cuts in the cover are open to enable circulation of aqueous humor from a lower part to an upper part of the cover.
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Accused Products
Abstract
A device is made up of one piece, or two independent pieces, that can be linked with each other to make a unit. The anterior end of a drainage tube is introduced 2 mm into the anterior chamber of the eye while the rear end of the tube is placed in the scleral lake. A cover is a plane body slight in height and oval or oblong in format that is provided with four parallel cuts that create two girths. The said girths are used to retain the drainage tube below the cover, thus creating a curvature in it to form a concave inner surface and a convex outer surface.
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Citations
15 Claims
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1. A drainage device for implanting into a sclera of a patient'"'"'s eye to drain aqueous humor from an anterior chamber of the eye into an intrascleral space the device comprising:
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a tube having a free anterior end at the anterior chamber of the eye and a free rear end at the intrascleral space; and a cover having a plurality of cuts forming girths, wherein the tube passes through the girths and is retained between the girths and a lower face of the cover, in a manner that the cover bends around the tube to leave an inner concave surface, whereby, with the tube passing through the girths, the anterior and rear ends of the tube remain free and the cuts in the cover are open to enable circulation of aqueous humor from a lower part to an upper part of the cover. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of treating glaucoma by implanting a drainage device for aqueous humor in a patient'"'"'s eye, the method comprising the steps of:
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providing a drainage device comprising a tube having a free anterior end and a free rear end, and a cover having cuts forming girths, wherein the tube passes through the girths and is retained between the girths and a lower face of the cover, in a manner that the cover bends around the tube to leave an inner concave surface, whereby, with the tube passing through the girths, the anterior and rear ends of the tube remain free and the cuts in the cover are open to enable circulation of aqueous humor from a lower part to an upper part of the cover; making a fornix-based conjunctival incision, and a limbus-based laminar scleral flap; inserting the cover with the tube into a sclera of the eye in a manner that the free end of the tube is placed into an anterior chamber of the eye and the free rear end into the sclera of the eye, ending into an intrascleral space, suturing the cover to the sclera, and closing and suturing the scleral flap. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification