| 摘要 |
A stent deployment apparatus (10) comprising safety and stent placement and deployment features (18), the stent deployment apparatus (10) facilitates th e precise delivery of stent (100) in a safe and repeatable fashion. The apparatus allows the physician to concentrate on correct placement without having to estimate extent of deployment by providing a physical safety mechanism that limits deployment to the critical deployment point. Moreover, to exceed this threshold, on audible and/or tactile indicator informs the physician that he/she can no longer retract the stent beyond this point. The stent deployment apparatus guidewire (12) may also be extended rather than retracting the outer catheter to deliver the stent. Moreover, the distal tip (60) is designed to comfortably guide the deployment apparatus through a diseased or occluded lumen so that the stent can be delivered in the most beneficial location. Additionally, the distal tip facilitates the removal of the deployment apparatus even if a defective stent is only partially radiall y expanded. In alternative embodiments, the stent deployment apparatus allows for the insertion of an optical scope (120) to facilitate stent delivery.</S DOAB>
|
