Reconstrainable stent delivery system with a proximal stop and an annular lock distal to the proximal stop and method

Abstract

The invention relates to a reconstrainable stent delivery system with a proximal stop and an annular lock distal to the proximal stop and method. Devices, systems and methods are described and involve deploying and reconstraining a stent. An intravascular device with first and second elongated tubular members capable of axial motion relative to a housing having an annular lock configured to secure an expandable intraluminal device in first state and release the intraluminal device in second state, the intraluminal device being coaxially disposed over the second elongated tubular member proximal of a distal stop. Actuators on the housing may withdraw or advance the first and second tubular members. The first tubular member is withdrawn to deploy the stent and is advanced to reconstrain the stent. The second tubular member is withdrawn to engage the distal stop with the annular lock prior to reconstraining. The device may have a directional control that is engaged by an actuator to allow only proximal motion of the first elongated tubular member relative to the housing and allows only distal motion of the first elongated tubular member when disengaged.

Description

[0001] Cross References to Related Applications [0002] Pursuant to 35 USC §119 or the Paris Convention, this application claims U.S. Provisional Patent Application No. filed January 31, 2015 (Attorney Docket No. FSS5013USPSP) and U.S. Provisional Patent Application No. filed July 27, 2015 (Attorney Docket No. FSS5014USPSP ), the entire contents of these provisional patent applications are hereby incorporated by reference as if fully set forth herein. technical field [0003] The present disclosure relates to the field of medical devices, and more particularly to medical devices or delivery systems and methods for controllably deploying stents and reconstraining locally deployed stents. In some applications, the present disclosure relates to systems for delivering self-expanding endoluminal grafts ("stents") for use within bodily passages or tubes, particularly useful for repairing blood vessels that have been narrowed or occluded due to disease . Background technique [...

AI Technical Summary

Problems solved by technology

However, this increases the length and difficulty of the procedure

Furthermore, placement in an unintended location may undesirably affect the anatomy of the vasculature, for example by obstructing a connection to another vessel

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