Recanalization system using radiofrequency energy
AssigneeRetroVascular, Inc.
InventorsOsamu Katoh, Wayne Ogata
Life of this patent
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Abstract
A method and systems for treating chronic total occlusions, particularly those that are difficult to treat, is disclosed. In this approach, recanalizing the CTO is achieved using a combined antegrade and retrograde approach. The proximal end of the occlusion is penetrated using an antegrade wire, using a traditional approach. Using collateral vessels, the distal end of the occlusion is crossed in a retrograde fashion. By appropriately maneuvering each member and applying radiofrequency energy between the proximal and distal ends of the occlusion, a continuous channel is created.
Claims47
A recanalization system, comprising:
- a radiofrequency generator;
- an antegrade longitudinal member with a proximal end and a distal end, wherein the distal end of the antegrade longitudinal member comprises a first conductive electrode adapted to be positioned at a first location of an occlusion in a blood vessel and the proximal end of the antegrade longitudinal member is configured to be coupled with the radiofrequency generator;
- and
- a retrograde longitudinal member with a proximal end and a distal end the retrograde longitudinal member spaced apart and entirely separate in a non-overlapping arrangement from the antegrade longitudinal member, wherein the distal end of the retrograde longitudinal member comprises a second conductive electrode adapted to be positioned at a second location of the occlusion and the proximal end of the retrograde longitudinal member is configured to be coupled with the radio frequency generator, wherein energy from the radiofrequency generator is emitted from the first conductive electrode to create a channel at least partially through the occlusion from the first location toward the second location.
A recanalization system, comprising:
- a radiofrequency generator;
- an antegrade longitudinal member with a proximal end and a distal end, wherein the distal end of the antegrade longitudinal member comprises a first conductive electrode adapted to be positioned at a first location of an occlusion in a blood vessel and the proximal end of the antegrade longitudinal member is configured to be coupled with the radiofrequency generator;
- and
- a retrograde longitudinal member with a proximal end and a distal end, the retrograde longitudinal member spaced apart and entirely separate in a non-overlapping arrangement from the antegrade longitudinal member, wherein the distal end of the retrograde longitudinal member comprises a second conductive electrode adapted to be positioned at a second location of the occlusion and the proximal end of the retrograde longitudinal member is configured to be coupled with the radio frequency generator, wherein energy from the radiofrequency generator is emitted from the second conductive electrode to create a channel at least partially through the occlusion from the second location toward the first location.
A recanalization system for use with a radiofrequency generator, comprising:
- an antegrade longitudinal member with a proximal end and a distal end, the distal end of the antegrade longitudinal member comprises a first conductive electrode adapted to be positioned at a first location of an occlusion in a blood vessel and the proximal end of the antegrade longitudinal member is configured to be coupled with a radiofrequency generator;
- and
- a retrograde longitudinal member with a proximal end and a distal end, the retrograde longitudinal member spaced apart and entirely separate in a non-overlapping arrangement from the antegrade longitudinal member, wherein the distal end of the retrograde longitudinal member comprises a second conductive electrode adapted to be positioned at a second location of the occlusion and the proximal end of the retrograde longitudinal member is configured to be coupled with the radio frequency generator, wherein energy from the radiofrequency generator is applied to the occlusion to create a channel at least partially through the occlusion.
Dependencies are inferred from the claim text.