STENT DEPLOYMENT DEVICE

摘要

A stent deployment device ( 110 ) is provided for deploying a stent in a lumen of a patient. The device can include a catheter ( 112 ), a first balloon ( 122 ) positioned near a distal end of the catheter and a second balloon ( 123 ) adjacent to the first balloon. Alternatively, the second balloon can be positioned over the first balloon. The device also includes an expandable stent ( 210 ) positioned over the first balloon and the second balloon. The first balloon comprises a semi-compliant material, a noncompliant material or a compliant material. Similarly, the second balloon comprises a semi-compliant material, a noncompliant material or a compliant material. The first balloon is expandable to a first diameter, while the second balloon can be expandable to a second diameter.