Patent ID: 7947008

Claim:
A shunt for implantation between the anterior chamber of the eye and the epithelial-lined space through the frontal sinus bone of a patient for the treatment of glaucoma, comprising: a tube having a length sufficient to span the distance between the anterior chamber of the eye and the epithelial-lined space of the patient, the tube having an open anterior chamber end and a closed epithelial-lined space end; a seal device associated with the tube between the anterior chamber and epithelial-lined space ends, for sealing a hole in the frontal sinus bone, and for anchoring the tube against movement from the frontal sinus bone; a fluid pressure openable valve in the tube, the valve being located at or near the epithelial-lined space end of the tube such that when implemented the valve is within the epithelial-lined space, allowing for controlled flow of aqueous humor through the tube, the valve including a longitudinal slit in the tube; and one or more ligature devices around the tube overlying or adjacent the slit wherein at least one ligature device overlies the slit so that adjustment of the one or more ligature devices adjusts fluid flow through the valve, the one or more ligature devices tighten the slit allowing less fluid to escape from the tube and drain from the anterior chamber.