Stent delivery system and method
AssigneeDePuy Synthes Products, Inc.
InventorsRobert Slazas, Juan A. Lorenzo
Life of this patent
Estimating the term…
Abstract
A system is provided to effectively position a stent within a vessel. The system includes a delivery catheter and a core wire extend through the catheter. The core wire includes an engaging surface region and a capture member disposed thereon, which cooperate to engage a stent such that the stent is able to be advanced or retracted with the advancement or retraction of the core wire. The engaging surface region and the capture member can generally be configured to engage the stent when a portion of the stent is disposed within the lumen of the catheter, and release the stent when no portion of the stent is within the lumen.
Claims9
A stent delivery device, comprising:
- a delivery catheter having a lumen extending therethrough and an inner diameter;
- and
- a core wire extending through the lumen of the delivery catheter and being movable relative to the delivery catheter, the core wire having an outer diameter that is less than the inner diameter of the delivery catheter;
- a stent having the core wire extending therethrough;
- and
- a capture member disposed within the delivery catheter and fixedly attached to the core wire, the capture member being constrained to a capturing orientation by the delivery catheter such that the capture member presses the stent against the core wire, and configured to be in a non-capturing orientation when the capture member is free of constrainment by the delivery catheter and is not pressing the stent against the core wire;
- wherein the core wire, capture member, and the stent are configured to be selectively moved proximally and distally as a unit in the lumen of the delivery catheter, and a distal end of the stent is configured to automatically expand radially outward upon exiting the delivery catheter through a distal end of the delivery catheter;
- and
- wherein the distal end of the stent is within the lumen of the delivery catheter in an unconstrained state to allow the automatic expansion.
Dependencies are inferred from the claim text.