ATHERECTOMY DEVICES AND METHODS
First Claim
Patent Images
1. A method for non-invasively imaging a vessel, the method comprising:
- advancing a device having a first lumen and a second lumen;
delivering a contrast agent through the first lumen of the device into the vessel at a location adjacent to an occlusion in the vessel, where the occlusion prevents flow of the contrast agent distally to the occlusion;
aspirating the contrast agent from the vessel through the second lumen; and
non-invasively imaging the contrast agent in the vessel.
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Accused Products
Abstract
The devices and methods generally relate to treatment of occluded body lumens. In particular, the present devices and method relate to removal of the occluding material from the blood vessels as well as other body lumens.
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Citations
39 Claims
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1. A method for non-invasively imaging a vessel, the method comprising:
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advancing a device having a first lumen and a second lumen; delivering a contrast agent through the first lumen of the device into the vessel at a location adjacent to an occlusion in the vessel, where the occlusion prevents flow of the contrast agent distally to the occlusion; aspirating the contrast agent from the vessel through the second lumen; and non-invasively imaging the contrast agent in the vessel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for circulating a contrast agent in a vessel proximal to a site of a total occlusion, the method comprising:
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advancing a device to the site, where the total occlusion prevents fluid flow distally through the vessel; delivering the contrast agent to the site through the device; aspirating the contrast agent from the site through the device; and non-invasively imaging the contrast agent in the vessel. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for circulating fluid for contrast, the method comprising:
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inserting a support catheter within the blood vessel, where the support catheter comprises a support catheter body having a proximal end and a distal end, the distal end containing at least one port on the surface for injection or aspiration of fluid; injecting the fluid for contrast through a lumen or port in the support catheter body; and aspirating the fluid for contrast into a lumen or port in the support catheter body. - View Dependent Claims (22, 23, 24, 26)
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25. The method of 23, where the coring cutter assembly comprises a helical groove or cylinder to drive itself through the tough fibrous cap.
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27. A method for clearing a total occlusion from a vessel, the method comprising:
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advancing a support catheter the vessel and adjacent to the occlusion, centering the support catheter the vessel and adjacent to the occlusion; advancing a lumen creating device within the support catheter to the occlusion; and creating a passage in the occlusion with the lumen creating device. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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Specification