| 摘要 |
The present invention provides an improved stent delivery catheter. The sten t delivery system comprises a catheter having a stent receiving portion adapted to receive a stent (35) near the distal end (25) o f the catheter and a stent (35) concentrically arranged around the catheter within the stent receiving portion. The stent delivery system furth er comprises a proximal outer sheath (10), a retractable distal sheath (40) surrounding at least a portion of the stent (35) and containing the stent in its reduced delivery configuration and a pull back means (45) connected (46) to the retractable distal sheath (40, 48). The system further comprises an arrangement wherein the retractable sheath (48) is pulled into the catheter (49) when the pull back means is pulled proximally and the distal sheath is retracted, freeing the stent for delivery.
|
