Short sleeve stent delivery catheter and methods
a stent and short sleeve technology, applied in the field of medical devices, can solve the problems the use of regular stents at bifurcation lesions with limited success rates, and the general production of straight tubular configurations, etc., to achieve the effect of reducing the risk of compromising the degree of patency of the main vessel and/or its branches, and facilitating catheter maneuvering within the patien
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[0035]In one aspect, the invention provides systems and methods for deploying stents at a vessel bifurcation such that a cell in the stent that is specifically designed to function as a branch aperture (referred to herein as a side hole of the stent) is in registry with the ostium of the branch vessel. Further, various techniques are provided for managing the guidewires over which the stents and stent delivery catheters are directed. More specifically, the invention provides techniques to help prevent the crossing of guidewires or to traverse crossed guidewires when introducing catheters used to deploy stents or other devices that require advancement over multiple guidewires, where it is important for the guidewires to be tangle free and parallel with respect to each other. In this way, the catheters may more easily be introduced to the diseased region.
[0036]The invention also provides techniques for reducing the profile of such delivery catheters, and to facilitate the introduction...
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