Stent Introducer System
1 Assignment
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Accused Products
Abstract
A stent delivery system for positioning a first and second stent the first and second branch lumens of a bifurcation. The stent delivery system includes stent introducers and a sheath or catheter having a frangible wall. A method of delivering stents to anatomies such as bifurcated ducts or vessels.
99 Citations
38 Claims
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1-18. -18. (canceled)
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19. A method for propping open a narrowed bifurcated anatomy having a main lumen and first and second branch lumens, the method comprising the steps of:
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a) providing a stent delivery system comprising; a first introducer comprising; a first tubular body having a first proximal portion, a first distal portion, a first stent carrying portion therebetween, and a first stent; a second introducer comprising; a second tubular body having a second proximal portion, a second distal portion, a second stent carrying portion therebetween and a second stent; a catheter for receiving the second introducer, the catheter having a frangible wall; a first wire guide; and a second wire guide; b) positioning the first introducer and the catheter in a working channel of an endoscope; c) positioning the endoscope adjacent the bifurcated anatomy; d) advancing the first wire guide through the working channel to the first branch lumen; e) advancing the second wire guide through the working channel to the second branch lumen; f) advancing the first introducer over the first wire guide to the first branch lumen of the bifurcation; g) advancing the catheter over the second wire guide to the second branch lumen of the of the bifurcation; and h) deploying the first stent within the first branch lumen. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A method of placing a first stent and a second stent into a bifurcated anatomy using a stent delivery system, the method comprising;
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positioning a first introducer in a working channel of an endoscope, the first introducer comprising a first tubular body having a first proximal portion, a first distal portion, a first stent carrying portion therebetween, and a first stent; positioning a catheter adjacent to the first introducer in the working channel of the endoscope, the first distal portion of the first introducer extending distal to a distal end of the catheter within the working channel, the catheter having an expandable passageway; advancing the first introducer into a first branch of the bifurcation; advancing the catheter into a second branch of the bifurcation independent of the first introducer; deploying the first stent in the first branch; and introducing a second introducer into the expandable passageway of the catheter, the second introducer comprising a second tubular body having a second proximal portion, a second distal portion, a second stent carrying portion therebetween, and a second stent, the second introducer having an outer diameter larger than an outer diameter of the catheter. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38)
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Specification