A left coronary artery (“LCA”) stent system includes: a first guidewire having a first diameter; a second guidewire having a second diameter, which may be the same or different than the first diameter; a left main (“LM”) stent assembly including (i) a catheter including a saline/contrast solution lumen and a guidewire lumen sized to accept both the first and second guidewire diameters of the first and second guidewires, and (ii) an LM stent sized to be deployed within a patient's LM; a left anterior descending artery (“LAD”) stent assembly for insertion through a deployed LM stent and along the first guidewire; and a circumflex artery (“LCx”) stent assembly for insertion through the deployed LM stent and along the second guidewire.

The invention relates to a medical device, the medical device comprising a balloon catheter, a first stent, and a second stent; the balloon catheter having a shaft and an inflatable balloon mounted to the shaft at the distal end the balloon having a distal portion having a first outer diameter and a proximal portion having a second outer diameter, wherein the first diameter is smaller than the second diameter and a transition region located between the distal portion and the proximal portion, a first stent having a first nominal diameter mounted on the distal portion of the balloon and a second stent having a second nominal diameter mounted on the proximal portion of the balloon, a distal portion of the second stent overlapping a proximal portion of the first stent, wherein the proximal end of the first stent is positioned proximal to the distal end of the second stent, the medical device further comprising a pre-cannulation means providing a passage from the interior of the second stent to the exterior of the first stent passing the stent overlapping portion between the inner surface of the second stent and the outer surface of the first stent.

A stent delivery system for treating a bifurcated vessel includes a first elongate shaft with a first expandable member. A first stent having a side hole is disposed over the first expandable member. A second elongate shaft has a second expandable member. The second elongate shaft is slidably disposed under the proximal end of the first stent and extends out of the side hole. The first stent is fully crimped over a proximal portion and a distal portion of the first expandable member and a proximal portion of the second expandable member so as to prevent axial movement of the first stent relative to the first or second elongate shafts during delivery. Portions of the first or second expandable members may be pillowed to provide a protective barrier that prevents edges of the stent from catching on other objects.

A stent delivery system for treating a bifurcated vessel includes a first elongate shaft with a first expandable member. A first stent having a side hole is disposed over the first expandable member. A second elongate shaft has a second expandable member. The second elongate shaft is slidably disposed under the proximal end of the first stent and extends out of the side hole. The first stent is fully crimped over a proximal portion and a distal portion of the first expandable member and a proximal portion of the second expandable member so as to prevent axial movement of the first stent relative to the first or second elongate shafts during delivery. Portions of the first or second expandable members may be pillowed to provide a protective barrier that prevents edges of the stent from catching on other objects.

A luminal stent has a tube body and a skirt surrounding the tube body. The skirt has a flexible connecting section and a stent graft connected to a proximal end of the flexible connecting section. A distal end of the flexible connecting section is sealed and connected to the outer surface of the tube body. A proximal end of the stent graft is suspended and provided with a first radial support structure. When the flexible connecting section is radially compressed, at least a part of the first radial support structure is bent towards a direction distant from the tube body. Also provided is a stent system including the luminal stent. The stent system and the luminal stent can prevent type III endoleaks.

Embodiments of the present invention provide a unique new approach to generating operating condition information used for assessing flow assurance and structural integrity. More specifically, apparatuses, systems and sensor housing assemblies configured in accordance with embodiments of the present invention utilize fiber optic sensors for enabling monitoring of operating condition information within one or more elongated tubular members within a subsea environment. To this end, such fiber optic sensors connected by lengths of optical fiber are strategically placed at a plurality of locations along a length of each elongated tubular member thereby allowing critical operating conditions such as strain, temperature and pressure of the elongated tubular member and/or a fluid therein to be monitored. A viscous media is used for mitigating attenuation associated with exposure of optical fiber exposed to forces generated by pressure within the subsea environment.

Embodiments of the present invention provide a unique new approach to generating operating condition information used for assessing flow assurance and structural integrity. More specifically, apparatuses, systems and sensor housing assemblies configured in accordance with embodiments of the present invention utilize fiber optic sensors for enabling monitoring of operating condition information within one or more elongated tubular members within a subsea environment. To this end, such fiber optic sensors connected by lengths of optical fiber are strategically placed at a plurality of locations along a length of each elongated tubular member thereby allowing critical operating conditions such as strain, temperature and pressure of the elongated tubular member and/or a fluid therein to be monitored. A viscous media is used for mitigating attenuation associated with exposure of optical fiber exposed to forces generated by pressure within the subsea environment.

Apparatus for progressively dilating the lumen of a narrow natural vessel such as an iliac artery and implanting a tubular device enabling access through the dilated lumen to conduct subsequent procedures via the dilated lumen, includes an inflatable integrated balloon locatable at least partially within the tubular device, the tubular device having a length L1 providing a self-expanding tubular body having at least a portion including stents, so that when the integrated balloon is removed the dilated lumen of the natural vessel remains dilated and supported by the tubular device.

Apparatus for progressively dilating the lumen of a narrow natural vessel such as an iliac artery and implanting a tubular device enabling access through the dilated lumen to conduct subsequent procedures via the dilated lumen, includes an inflatable integrated balloon locatable at least partially within the tubular device, the tubular device having a length L1 providing a self-expanding tubular body having at least a portion including stents, so that when the integrated balloon is removed the dilated lumen of the natural vessel remains dilated and supported by the tubular device.

Medical devices including vascular access kits and related system and methods are disclosed. In some embodiments, a vascular access system may include a first conduit, a second conduit, and an expandable stent that is coupled to both the first and second conduits such that there is a continuous lumen between the first conduit and the second conduit. Methods of deploying the vascular access system within the body of a mammal, more particularly, a human patient are disclosed. Methods of bypassing a section of vasculature of a mammal, more particularly, a human patient are disclosed. The vascular access system, when implanted and assembled, may be a fully subcutaneous surgical implant.