MULTIPLE-WIRE SYSTEMS AND METHODS FOR ABLATION OF OCCLUSIONS WITHIN BLOOD VESSELS
First Claim
Patent Images
1. A multiple-wire system for ablation of an occlusion within a blood vessel, comprising:
- an outer wire configured for percutaneous insertion in the blood vessel, the outer wire having a proximal end, a distal end, and a generally cylindrical outer surface, wherein the outer wire includes an opening adjacent the proximal end, an opening adjacent the distal end, and a central lumen communicating therebetween;
a second wire configured for insertion in the blood vessel through the central lumen of the outer wire, the second wire having a proximal end, a distal end, and a generally cylindrical outer surface, wherein the second wire includes an opening adjacent the proximal end, an opening adjacent the distal end, and a central lumen communicating therebetween, and wherein the second wire is longer than the outer wire;
an inner wire configured for insertion in the blood vessel through the central lumen of the second wire, the inner wire having a proximal end, a distal end, and a generally cylindrical outer surface, and wherein the inner wire is longer than the second wire; and
a radio-frequency device including a radio-frequency generating device operatively coupled to one or more of the outer wire, the second wire, and the inner wire, wherein the radio-frequency device is configured to deliver radio-frequency energy to one or more of the distal ends of the outer wire, the second wire, and the inner wire.
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Abstract
Multiple-wire systems for the ablation of occlusions within blood vessels. Systems include two or more concentric wires configured for percutaneous insertion in a blood vessel, the wires configured to ablate an occlusion within the blood vessel.
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Citations
56 Claims
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1. A multiple-wire system for ablation of an occlusion within a blood vessel, comprising:
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an outer wire configured for percutaneous insertion in the blood vessel, the outer wire having a proximal end, a distal end, and a generally cylindrical outer surface, wherein the outer wire includes an opening adjacent the proximal end, an opening adjacent the distal end, and a central lumen communicating therebetween; a second wire configured for insertion in the blood vessel through the central lumen of the outer wire, the second wire having a proximal end, a distal end, and a generally cylindrical outer surface, wherein the second wire includes an opening adjacent the proximal end, an opening adjacent the distal end, and a central lumen communicating therebetween, and wherein the second wire is longer than the outer wire; an inner wire configured for insertion in the blood vessel through the central lumen of the second wire, the inner wire having a proximal end, a distal end, and a generally cylindrical outer surface, and wherein the inner wire is longer than the second wire; and a radio-frequency device including a radio-frequency generating device operatively coupled to one or more of the outer wire, the second wire, and the inner wire, wherein the radio-frequency device is configured to deliver radio-frequency energy to one or more of the distal ends of the outer wire, the second wire, and the inner wire. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A multiple-wire system for percutaneous insertion in a blood vessel, comprising:
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an outer wire having a proximal end, a distal end, and a generally cylindrical and textured outer surface, wherein the outer wire includes an opening adjacent the proximal end, an opening adjacent the distal end, and a central lumen communicating therebetween, and wherein the textured outer surface is configured to aid with the passage of the outer wire through the blood vessel in response to a user manipulating the outer wire; a second wire configured for insertion through the central lumen of the outer wire, the second wire having a proximal end, a distal end, and a generally cylindrical and textured outer surface, wherein the second wire is longer than the outer wire, and wherein the textured outer surface is configured to aid with the passage of the second wire through the blood vessel in response to a user manipulating the second wire; and a radio-frequency device including a radio-frequency generating device operatively coupled to one or both of the outer wire and the second wire, wherein the radio-frequency device is configured to deliver radio-frequency energy to one or both of the distal ends of the outer wire and the second wire. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A method of ablating an occlusion within a blood vessel, comprising:
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percutaneously inserting into a blood vessel an outer wire having a central lumen; feeding the outer wire through one or more blood vessels; feeding a second wire having a central lumen through the central lumen of the outer wire; feeding an inner wire through the central lumen of the second wire to reach the occlusion; manipulating one or more of the outer wire, the second wire, and the inner wire to engage the occlusion; and applying radio-frequency energy to a distal end of one or more of the outer wire, the second wire, and the inner wire to ablate the occlusion. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40)
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41. A method of ablating an occlusion within a blood vessel, comprising:
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percutaneously inserting into a blood vessel an inner wire; feeding the inner wire through one or more blood vessels; feeding a second wire having a central lumen over the inner wire; feeding an outer wire having a central lumen over the second wire; manipulating one or more of the inner wire, the second wire, and the outer wire to engage the occlusion; and applying radio-frequency energy to a distal end of one or more of the inner wire, second wire, and outer wire to ablate the occlusion. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48)
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49. A method of ablating an occlusion within a blood vessel, comprising:
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percutaneously inserting into a blood vessel a first wire having a central lumen; feeding the first wire through one or more blood vessels; feeding a second wire through the central lumen of the first wire; feeding a third wire having a central lumen over the first wire; manipulating one or more of the first wire, the second wire, and the third wire to engage the occlusion; and applying radio-frequency energy to a distal end of one or more of the first wire, second wire, and third wire to ablate the occlusion. - View Dependent Claims (50, 51, 52, 53, 54, 55, 56)
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Specification