Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
146 words
In a steerable low profile dilatation catheter, a flexible elongate tubular member having proximal and distal extremities and having a flow passage extending therethrough, an adapter secured to the proximal extremity of the tubular member, a separate balloon member having proximal and distal extremities and having its proximal extremity mounted on the distal extremity of the flexible elongate tubular member to provide a liquid-tight seal between the same, a core wire extending through the flow passage of the tubular member and through the balloon and beyond the distal extremity of the balloon, a tip coil formed of a radiopaque material having proximal and distal extremities and means securing the proximal extremity of the tip coil to the distal extremity of the balloon member, the distal extremity of the core wire extending into the tip coil, but being spaced from the distal extremity of the tip coil.
Claim 2
Dependent Claim
146 words
In a steerable low profile dilatation catheter, a flexible elongate tubular member having proximal and distal extremities and having a flow passage extending therethrough, an adapter secured to the proximal extremity of the tubular member, a separate balloon member having proximal and distal extremities and having its proximal extremity mounted on the distal extremity of the flexible elongate tubular member to provide a liquid-tight seal between the same, a core wire extending through the flow passage of the tubular member and through the balloon and beyond the distal extremity of the balloon, a tip coil formed of a radiopaque material having proximal and distal extremities and means securing the proximal extremity of the tip coil to the distal extremity of the balloon member, the distal extremity of the core wire extending into the tip coil, but being spaced from the distal extremity of the tip coil.
Claim 3
Dependent Claim
19 words
A dilatation catheter as claimed in Claim 1 wherein said core wire is provided with a tapered distal extremity.
Claim 4
Dependent Claim
84 words
A dilatation catheter as claimed in Claim 2 wherein said core wire is provided with a proximal portion having a continuous diameter of approximately 0.4 mm (.016 inch) for a substantial portion of the same and wherein the portion of the guide wire extending into the balloon has a tapered portion reducing the diameter from approximately 0.4 mm (.016 inch) to approximately 0.2 nm (.008 inch), a taper portion reducing the diameter from approximately 0.2 mm (.008 inch) to approximately 0.1 mm (.005 inch).
Claim 5
Dependent Claim
25 words
A dilatation catheter as claimed in Claims 2 or 3 wherein the distal extremity of the core wire is provided with a flattened end portion.
Claim 6
Dependent Claim
18 words
A dilatation catheter as claimed in Claim 4 wherein the flattened end portion extends into the tip coil.
Claim 7
Dependent Claim
43 words
A dilatation catheter as claimed in any one of Claims 1-5 together with a shaping ribbon, means securing the shaping ribbon to the distal extremity of the core wire and means securing the shaping ribbon to the distal extremity of the tip coil.
Claim 8
Dependent Claim
31 words
A dilatation catheter as claimed in any one of Claims 1-6 wherein the balloon member has a wall thickness which is substantially less than the wall thickness of the tubular member.
Claim 9
Dependent Claim
39 words
A dilatation catheter as claimed in any one of Claims 1-7 wherein said tubular member has a wall thickness of approximately 0.1 mm (.005 inch) and the balloon member has a wall thickness of approximately 0.025 mm (.001 inch).