System for treating chronic total occlusion caused by lower extremity arterial disease
First Claim
1. A catheter device for insertion into a vascular body, comprising a carrier having a lumen extending therethrough;
- an inflatable balloon attached to said carrier so as to be carried thereby, said balloon being expandable from a deflated position to an inflated position in response to the introduction of pressurized fluid into said balloon, said balloon having an opening formed in an exterior surface 10 of said balloon, said opening permitting communication between said lumen and said exterior surface.
1 Assignment
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Accused Products
Abstract
A system for the treatment of lower extremity arterial chronic total occlusion (CTO) incorporates remote access of the guide-wire, at least one specifically shaped catheter, and a wire-capture dilation balloon catheter. A capture balloon catheter serves to capture the wire used to traverse the CTO. The capture balloon has a lumen with two axial openings and a radial opening. The capture balloon enters the vascular body from a first opening along a first guide-wire until the balloon is adjacent the CTO. A second guide-wire is advanced from a second opening in the vascular body that is located on an opposite side of the CTO. After the first guide-wire is removed, the second guide-wire is advanced through the funnel-shaped opening in the balloon, then through the radial opening of the lumen and through the lumen so as to advance out of the first opening of the vascular body. A conventional treatment balloon can then be advanced on the second guide-wire to the CTO for treatment.
42 Citations
40 Claims
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1. A catheter device for insertion into a vascular body, comprising a carrier having a lumen extending therethrough;
- an inflatable balloon attached to said carrier so as to be carried thereby, said balloon being expandable from a deflated position to an inflated position in response to the introduction of pressurized fluid into said balloon, said balloon having an opening formed in an exterior surface 10 of said balloon, said opening permitting communication between said lumen and said exterior surface.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A catheter system for positioning a guide wire through a treatment site within a vascular body, comprising a first catheter having carrier, which includes a lumen extending therethrough, and an inflatable balloon, which is attached to said carrier so as to be carried thereby, said balloon being expandable from a deflated position to an inflated position in response to the introduction of pressurized fluid into said balloon, said balloon having an opening formed in an exterior surface of said balloon, said opening permitting communication between said exterior surface and said lumen;
- and a second catheter having a portion adjacent an end thereof, said portion being sized and shaped so as to be positioned adjacent said opening of said balloon when said balloon is in its said inflated position.
- View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A method for positioning a catheter guide wire through a treatment site in a vascular body, comprising the steps of:
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(a) advancing a first catheter to the treatment site through the vascular body from an upstream side of the treatment site;
(b) advancing a second catheter to the treatment site through the vascular body from a downstream side of the treatment site;
(c) engaging the first catheter with the second catheter within the vascular body within the vascular body adjacent the treatment site;
(d) feeding a guide wire from one of the first and second catheters to the other one of the first and second catheters; and
(e) removing the first and second catheters from the vascular body, thereby leaving the guide wire extending through the treatment site. - View Dependent Claims (39, 40)
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Specification