Stent positioning system and method
First Claim
1. A stent placement system for use with a guiding catheter as part of a stent procedure, the stent placement system comprising:
- a deployment site locator coaxially received within the guiding catheter, the deployment site locator including;
a base, anda plurality of rods affixed to the base, each one of the plurality of rods being a solid body and having a distal end, wherein the deployment site locator is adapted to provide an expanded state in which the plurality of rods extend radially outward from the base to contact vascular structures, wherein each one of the plurality of rods is configured to self-transition from a collapsed state toward the expanded state;
a carrier body coaxially received within the guiding catheter such that the carrier body and the deployment site locator are longitudinally slidable relative to the guiding catheter, wherein the base is affixed to a distal end of the carrier body;
a stent delivery device coaxially received within the carrier body; and
a stent carried by the stent delivery device such that the stent delivery device and the stent are longitudinally slidable relative to the carrier body and the deployment site locator, wherein the deployment site locator is a component separate from the stent, and further wherein the deployment site locator is movable relative to the stent.
1 Assignment
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Accused Products
Abstract
A stent combined with a positioning apparatus to effectively place the stent at a precise deployment site within a narrowed vascular region such as an artery. The stent is maneuvered through the vessel and is guided by a guiding catheter up the vessel to where the narrowing is located. Upon exiting the guiding catheter and approaching the deployment site within the coronary artery, a deployment site locator expands to contact the vascular structure and, thereby, effectively position the stent at the deployment site within the narrowed vessel. This system apparatus and method is particularly useful for stent placement at an ostium (origin) of a vessel.
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Citations
19 Claims
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1. A stent placement system for use with a guiding catheter as part of a stent procedure, the stent placement system comprising:
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a deployment site locator coaxially received within the guiding catheter, the deployment site locator including; a base, and a plurality of rods affixed to the base, each one of the plurality of rods being a solid body and having a distal end, wherein the deployment site locator is adapted to provide an expanded state in which the plurality of rods extend radially outward from the base to contact vascular structures, wherein each one of the plurality of rods is configured to self-transition from a collapsed state toward the expanded state; a carrier body coaxially received within the guiding catheter such that the carrier body and the deployment site locator are longitudinally slidable relative to the guiding catheter, wherein the base is affixed to a distal end of the carrier body; a stent delivery device coaxially received within the carrier body; and a stent carried by the stent delivery device such that the stent delivery device and the stent are longitudinally slidable relative to the carrier body and the deployment site locator, wherein the deployment site locator is a component separate from the stent, and further wherein the deployment site locator is movable relative to the stent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification