Guidewire-less stent delivery methods
First Claim
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1. A method of coronary vessel treatment comprising:
- advancing a balloon catheter to a treatment site;
performing an angioplasty by dilating the balloon catheter at the treatment site to dilate an area of stenosis;
retracting the balloon catheter proximally away from the treatment site;
advancing a guidewire-less delivery guide including a self-expanding stent distally to the treatment site, wherein the stent is not sheathed during advancement;
releasing the stent to self-expand from the guidewire-less delivery guide while a portion of the guidewire-less delivery guide is within a lumen of the balloon catheter.
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Abstract
The invention provides an atraumatic, low profile device for the delivery of one or more implants into tubular organs or open regions of the body. The implant delivery device may simultaneously or independently release portions of the implant, e.g., the proximal and distal ends of the implant. This independent release feature allows better implant positioning at the target site. Upon deployment, the implants may be placed at the target site without a sheath.
442 Citations
13 Claims
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1. A method of coronary vessel treatment comprising:
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advancing a balloon catheter to a treatment site; performing an angioplasty by dilating the balloon catheter at the treatment site to dilate an area of stenosis; retracting the balloon catheter proximally away from the treatment site; advancing a guidewire-less delivery guide including a self-expanding stent distally to the treatment site, wherein the stent is not sheathed during advancement; releasing the stent to self-expand from the guidewire-less delivery guide while a portion of the guidewire-less delivery guide is within a lumen of the balloon catheter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification