Method and Apparatus for Ablative Recanalization of Blocked Vasculature
5 Assignments
0 Petitions
Accused Products
Abstract
A method of treating vessel occlusions including chronic total occlusions (CTO) of the coronary arteries, and to generally remove tissue material, is presented that relies on remotely actuated navigation of an interventional RF-capable ablation device to the occlusion and controlled application of ablative RF energy. The combined use of remote navigation-based precision control of the distal end of the device and application of ablative energy enables crossing of elongated lesions and CTOs, calcified lesions and CTO'"'"'s, lesions and CTO'"'"'s located at vessel branches, and in general the removal of tissue material at a chosen tissue location.
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Citations
41 Claims
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1-17. -17. (canceled)
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18. A system for recanalization of blocked vasculature, comprising:
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i. a remote navigation system for remote actuation of an interventional device within a patient'"'"'s lumen to an occlusion;
ii. a remotely actuated interventional device capable of Radio Frequency power delivery to tissue;
iii. remote actuation means for orienting the interventional device distal end with respect to the occlusion in the vasculature;
iv. means for applying Radio Frequency energy to the occlusion in order to create a pathway through the occlusion; and
v. means to expand the radial dimensions of the pathway thus created. - View Dependent Claims (19, 20, 21, 22, 23)
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24. (canceled)
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25. (canceled)
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26. (canceled)
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27. (canceled)
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28. A method of performing tissue ablation to remove tissue material in a subject body, comprising:
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(i) magnetically navigating the distal end of a magnetically endowed interventional device, capable of Radio Frequency (RF) power delivery, to a tissue location;
(ii) orienting the distal end of the interventional device;
(iii) applying ablative RF energy to the tissue location in pulsed form while navigating the interventional device; and
(iv) iterating through steps i) to iii) to remove tissue material. - View Dependent Claims (29, 30, 31, 32, 33, 34)
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35. A system for performing tissue ablation to remove tissue material in a subject body, comprising:
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(i) a remote navigation system for remotely navigating the distal end of an interventional device endowed with remote actuation means and capable of Radio Frequency (RF) power delivery, to a tissue location; and
(ii) a Radio Frequency generator connected to the interventional device and capable of delivering pulsed Radio Frequency energy through said device to the tissue location. - View Dependent Claims (36, 37, 38, 39, 40, 41)
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Specification