Stent delivery catheter and method of use
First Claim
Patent Images
1. An assembly for trapping arterial plaque against a vascular wall, comprising:
- a radially outwardly deformable, tubular sheath having a proximal end and a distal end, said sheath to be introduced intravascularly and expanded against the vascular wall to trap the plaque therebetween.
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Abstract
A deformable sheath is attached to a catheter and introduced intravascularly to be expanded against an arterial wall and entrap plaque therebetween. A stent is subsequently deployed within the expanded sheath and the sheath is then withdrawn from within the vasculature to leave the stent expanded against the arterial wall with the plaque entrapped therebetween.
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Citations
55 Claims
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1. An assembly for trapping arterial plaque against a vascular wall, comprising:
a radially outwardly deformable, tubular sheath having a proximal end and a distal end, said sheath to be introduced intravascularly and expanded against the vascular wall to trap the plaque therebetween. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 21, 22, 23, 24, 25, 26, 27, 28, 55)
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19. The assembly of
claim 19 , wherein the sheath material has a yield strength of between 50 psi and 300 psi.
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29. A method for entrapping plaque particles against a vascular wall at a predetermined intravascular site, comprising the steps of:
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providing a radially outwardly deformable, tubular sheath having a proximal end and a distal end;
providing an intravascular deployment catheter having a proximal end, a distal end, and a lumen extending therebetween;
attaching the sheath proximal end to the deployment catheter distal end;
introducing the deployment catheter into the vasculature;
advancing the deployment catheter through the vasculature to position the sheath at the intravascular site; and
expanding the sheath against the vascular wall at the intravascular site to trap the plaque therebetween. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53)
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54. An assembly for trapping arterial plaque against a vascular wall, comprising:
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a deployment catheter having a proximal end, a distal end, and an inner lumen extending therebetween;
a radially outwardly, deformable, tubular sheath to be introduced intravascularly and expanded against the vascular wall to entrap the plaque therebetween, the sheath having a proximal end attached to the deployment catheter distal end, and a distal end;
a delivery catheter being axially movably disposed within the deployment catheter lumen and having a distal end and an inner lumen;
a self-expanding intravascular device disposed within the delivery catheter lumen adjacent the delivery catheter distal end;
an outer sheath disposed over the deployment catheter to receive the deformable sheath therein; and
a pusher rod axially movably disposed within the delivery catheter lumen proximal of the intravascular device.
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Specification