Injectable glaucoma device
First Claim
1. A glaucoma device for implanting in the eye of a patient to relieve intraocular pressure, the device comprising:
- a drainage shaft;
an internal ostium at one end of the drainage shaft, the internal ostium having a flared lip;
an external ostium adjacent the second end of the drainage shaft on an upper side of the shaft;
a foldable plate connected to the second end of the drainage shaft; and
a pair of foldable wings extending from each of the left and right sides of the drainage shaft.
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Accused Products
Abstract
A glaucoma device includes an aqueous tube shunt implant with a foldable reservoir plate for injecting below the conjunctiva of a patient'"'"'s eye via a hollow cannula. The device has an internal ostium with a flared lip at one end of a shaft having a flattened wing extending to the sides. A foldable plate and reservoir are provided at the at the other end of the shaft and connected to an external ostium of the shaft. The flattened wing presents a flat surface to the overlying conjunctiva and helps position the device when used. The device is preferably made of silicone or acrylic so that the entire implant is foldable and may be rolled up for insertion via the cannula. Other improvements and a method for implanting the device are disclosed as well.
99 Citations
21 Claims
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1. A glaucoma device for implanting in the eye of a patient to relieve intraocular pressure, the device comprising:
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a drainage shaft;
an internal ostium at one end of the drainage shaft, the internal ostium having a flared lip;
an external ostium adjacent the second end of the drainage shaft on an upper side of the shaft;
a foldable plate connected to the second end of the drainage shaft; and
a pair of foldable wings extending from each of the left and right sides of the drainage shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A glaucoma shunt implantation kit comprising:
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a glaucoma shunt having a drainage shaft, an internal ostium at one end of the drainage shaft, the internal ostium having a flared lip, an external ostium adjacent the second end of the drainage shaft on an upper side of the shaft, a foldable plate connected to the second end of the drainage shaft, a pair of foldable wings extending from each of the left and right sides of the drainage shaft; and
a hollow cannula injector having means for pushing the glaucoma shunt through the injector after the glaucoma shunt has been inserted within the injector with the plate and wings folded to a diameter less than an inner diameter of the injector. - View Dependent Claims (11, 12, 13, 14, 16, 17, 18, 19, 20, 21)
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15. A method of implanting a glaucoma shunt in a patient'"'"'s eye, comprising:
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providing a glaucoma shunt having a drainage shaft, an internal ostium at one end of the drainage shaft, the internal ostium having a flared lip, an external ostium adjacent the second end of the drainage shaft on an upper side of the shaft, a foldable plate connected to the second end of the drainage shaft, a pair of foldable wings extending from each of the left and right sides of the drainage shaft;
folding the glaucoma shunt to fit within a hollow cannula injector;
providing an implant opening in the patient'"'"'s eye;
inserting the cannula injector with the glaucoma shunt through the implant opening;
injecting the glaucoma shunt below a conjunctiva of the patient'"'"'s eye;
positioning the glaucoma shunt with the internal ostium inside the patient'"'"'s eye and the wings and plate unfolded;
removing the cannula injector; and
closing the implant opening.
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Specification