Intravascular stent delivery assembly

Details Intravascular stent delivery assembly Intravascular stent delivery assembly

A - Human Necessities

61

F

A61F 2/06 (2006.01) A61M 25/00 (2006.01)

Patent

CA 2372820

A stent delivery assembly generally includes an elongated delivery sheath and a catheter disposed within an inner lumen of the sheath having an expandable member on its distal extremity. An expandable stent is mounted on the expandable member of the catheter. A manipulating device is provided on the proximal end of the delivery system to effect relative axial movement between the sheath and the catheter so as to expose the stent mounted on the expandable member on the catheter within a body lumen such as a coronary artery and allow the expansion of the stent by the expansion of the expandable member. The delivery sheath has a first port in its distal end and a second port in the sheath wall proximally disposed from the distal end of the sheath. The catheter likewise has a first port in its distal end and a second port proximally disposed from the distal end of the catheter. An inner lumen extends within the distal portion of the catheter between the first and second ports and slidably receives a guiding member such as a guidewire. This system allows the stent to be delivered over a guidewire previously advanced to the desired location within a body lumen.

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