Method of positioning a stent using rods
First Claim
1. A method of deploying an intravascular stent within a patient, the method comprising:
- delivering a distal end of a guiding catheter adjacent an ostium of a vessel to be stented;
guiding a deployment site locator in a collapsed state through the delivered guiding catheter, the deployment site locator including a base and a plurality of rods affixed to the base;
extending the plurality of rods from the distal end of the delivered guiding catheter such that the plurality of rods transition from the collapsed state to an expanded state in which the plurality of rods expand relative to one another to collectively define a maximum outer dimension greater than a maximum dimension of the ostium;
determining a position of the ostium by contacting bodily structures of the patient apart from the vessel and immediately proximate the ostium with at least one of the plurality of rods and the deployment site locator in the expanded state;
delivering a stent through the guiding catheter to a desired stent location, wherein the desired stent location is based upon the determined position of the ostium;
deploying the stent at the desired stent location; and
withdrawing the deployment site locator from the patient.
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.
11 Citations
18 Claims
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1. A method of deploying an intravascular stent within a patient, the method comprising:
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delivering a distal end of a guiding catheter adjacent an ostium of a vessel to be stented; guiding a deployment site locator in a collapsed state through the delivered guiding catheter, the deployment site locator including a base and a plurality of rods affixed to the base; extending the plurality of rods from the distal end of the delivered guiding catheter such that the plurality of rods transition from the collapsed state to an expanded state in which the plurality of rods expand relative to one another to collectively define a maximum outer dimension greater than a maximum dimension of the ostium; determining a position of the ostium by contacting bodily structures of the patient apart from the vessel and immediately proximate the ostium with at least one of the plurality of rods and the deployment site locator in the expanded state; delivering a stent through the guiding catheter to a desired stent location, wherein the desired stent location is based upon the determined position of the ostium; deploying the stent at the desired stent location; and withdrawing the deployment site locator from the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification