초록 ▼

The object of the invention is an implantable intervertebral connection device comprising at least two pedicular screws (1, 2) provided in their upper portion with a hexagonal head (3) prolonged by a cylindrical bearing (4, 4') and an inter-screw connection of adjustable length anchored at each end

The object of the invention is an implantable intervertebral connection device comprising at least two pedicular screws (1, 2) provided in their upper portion with a hexagonal head (3) prolonged by a cylindrical bearing (4, 4') and an inter-screw connection of adjustable length anchored at each end on said bearings, characterized in that said inter-screw connections constituted, on the one hand, by a ball (7, 7') preferably of a resiliently deformable material threaded on each bearing (4) and, on the other hand, by two connection elements (E1, E2; E'1, E'2) in prolongation of each other and interconnected by a screw system (17, 18; 18', 41, 42) for adjustment of spacing, the free ends of the elements being shaped as a cup (8, 9; 8', 9') which is concave and threadable on said bearing (4, 4') and matching said ball (7, 7') such that in line with each pedicular screw (1, 2; 1', 2') the ball will be sandwiched between two cups (8, 9; 8', 9') of two connections associated with the screw, means (6, 6') being provided to bring together toward each other the two cups (8, 9; 8', 9') by gripping said ball (7, 7') and securing the assembly of the pedicular screw. Use in treatment of the vertebral column.

대표청구항 ▼

The object of the invention is an implantable intervertebral connection device comprising at least two pedicular screws (1, 2) provided in their upper portion with a hexagonal head (3) prolonged by a cylindrical bearing (4, 4') and an inter-screw connection of adjustable length anchored at each end

The object of the invention is an implantable intervertebral connection device comprising at least two pedicular screws (1, 2) provided in their upper portion with a hexagonal head (3) prolonged by a cylindrical bearing (4, 4') and an inter-screw connection of adjustable length anchored at each end on said bearings, characterized in that said inter-screw connections constituted, on the one hand, by a ball (7, 7') preferably of a resiliently deformable material threaded on each bearing (4) and, on the other hand, by two connection elements (E1, E2; E'1, E'2) in prolongation of each other and interconnected by a screw system (17, 18; 18', 41, 42) for adjustment of spacing, the free ends of the elements being shaped as a cup (8, 9; 8', 9') which is concave and threadable on said bearing (4, 4') and matching said ball (7, 7') such that in line with each pedicular screw (1, 2; 1', 2') the ball will be sandwiched between two cups (8, 9; 8', 9') of two connections associated with the screw, means (6, 6') being provided to bring together toward each other the two cups (8, 9; 8', 9') by gripping said ball (7, 7') and securing the assembly of the pedicular screw. Use in treatment of the vertebral column. m 1, wherein at least a portion of the distal portion is selected from the group consisting of a round tubular channel, an ovoid tubular channel, a semi-tubular channel, and a partially open trough-like channel. 21. The shunt device of claim 1, wherein at least a portion of the distal portion is a partially open trough-like channel open posteriorly toward one or more collecting channels of the eye. 22. The shunt device of claim 1, wherein at least a portion of the device is constructed from porous material. 23. The shunt device of claim 1, in which the terminal aspect of the proximal portion is angled internally towards the anterior chamber with respect to the proximal portion. 24. An aqueous humor shunt device to divert aqueous humor in an eye from the anterior chamber into Schlemm's canal, the shunt device comprising a distal portion having at least one terminal aspect sized and shaped to be received within a portion of Schlemm's canal and a proximal portion having at least one terminal aspect sized and shaped to be received within the anterior chamber of the eye, wherein device permits fluid communication from the proximal portion in the anterior chamber to the distal portion in Schlemm's canal, wherein the shunt device is non-linear prior to insertion. 25. The shunt device of claim 24, wherein said distal portion of the shunt has an outer diameter of about 0.1 mm to 0.5 mm and a length of about 1 mm to 20 mm, and wherein said proximal portion has a length of about 0.1 to 3 mm. 26. The shunt device of claim 24, wherein said distal portion has a curve having a radius which approximates the radius of Schlemm's canal of a human eye, wherein the radius is between about 3 mm and 10 mm. 27. The shunt device of claim 26, wherein said curve has a radius of about 6 mm. 28. The shunt device of claim 24, wherein the proximal portion of the shunt intersects the distal portion and wherein the distal portion branches in two opposite directions from the intersection with the proximal portion permitting fluid communication from the anterior chamber in either direction along Schlemm's canal. 29. The shunt device of claim 28, wherein the proximal portion of the shunt intersects the distal portion at about the midpoint of the length of the distal portion. 30. The shunt device of claim 24, wherein the distal portion extends in one direction within Schlemm's canal. 31. The shunt device of claim 24, wherein the distal portion comprises a lumen that extends in either direction along Schlemm's canal. 32. The shunt device of claim 24, wherein the device further comprises one or more unidirectional valves. 33. The shunt device of claim 24, wherein the proximal portion extends from the distal portion at an angle to avoid occlusion from contact with corneal endothelium tissue or iris tissue when the distal