The present application discloses a balloon stent, comprising a drug balloon and a stent assembly, each having a contracted state and an expanded state, wherein the stent assembly includes at least two stents sleeved around a periphery of the drug balloon and disposed at an interval along its axial direction. The stent assembly adopts a design of at least two stents disposed at an interval, which can effectively reduce coverage of the stents and volume of implant, and reduce the probability of restenosis. When restenosis occurs, the stent can be re-implanted for treatment in the interval between two adjacent stents. The newly implanted stent will not overlap with the original stent, so as to effectively suppress the occurrence of in-stent restenosis and ensure long-term treatment effect.

A stent in a radially compressed configuration includes a plurality of first outer crowns and a plurality of second outer crowns, each of the first outer crowns and the second outer crowns connected by a strut of a plurality of struts. The plurality of first outer crowns and the plurality of second outer crowns are disposed at a crown angle in the range of about 15 degrees to about 35 degrees, the crown angle being defined by a line extending through a midpoint of a crown of the plurality of first outer crowns or the plurality of second outer crowns through a center of radius of the crown with respect to a line that is parallel to a central longitudinal axis of the stent.

A continuous wire stent includes a wire bent into a waveform and spirally wrapped into a helix having a plurality of bands that form a hollow cylindrical shape. The waveform includes a plurality of waves, each wave including a first outer crown including a first intrados, a second outer crown including a second intrados facing the first intrados, a first mid-crown disposed between the first outer crown and the second outer crown, a second mid-crown disposed between the second outer crown and an outer crown of a next wave of the waveform, a first strut connecting the first outer crown to the first mid-crown, a second strut connecting the first mid-crown to the second outer crown, a third strut connecting the second outer crown to the second mid-crown, and a fourth strut connecting the second mid-crown to the outer crown in the next wave of the waveform.

A stent incorporating flexible, preferably polymeric, connecting elements into the stent wherein these elements connect adjacent, spaced-apart stent elements. Preferably the spaced-apart adjacent stent elements are the result of forming the stent from a helically wound serpentine wire having space provided between adjacent windings. Other stent forms such as multiple, individual spaced-apart ring-shaped or interconnected stent elements may also be used. The connecting elements are typically web-shaped and result from creating slits or apertures in a covering of graft material applied to the stent and then, for example, applying heat to cause the slits or apertures to enlarge. The remaining graft material forms the interconnecting webs between the adjacent stent elements.

Methods of implanting a device in the lumen of a blood vessel are described. The method includes providing a microcatheter and a device. The device includes a first hub, a second hub, a support structure including a plurality of struts disposed between the first hub and the second hub, and a layer of material disposed over the plurality of struts. The support structure has a low profile, radially constrained state with an elongated tubular configuration suitable for delivery from a microcatheter. The support structure also has an expanded state, a smooth outer surface, and has an axially shortened configuration relative to the radially constrained state. The microcatheter is advanced to a region of interest within the blood vessel. The support structure is advanced through the lumen of and out the distal end of the microcatheter where it expands to the expanded state.

Apparatus and methods are provided for treating patients exhibiting symptoms of hypertension, isolated systolic hypertension, heart failure with preserved ejection fraction, May-Thuner Syndrome or dyspnea by diagnosing and reducing narrowing of a patient's iliac vein caused by extrinsic localized compression using a stent having circumferential differential radial stiffness and delivery catheter for aligning and deploying such stents.

According to various aspects and embodiments, a growth adaptive expandable stent is provided. The expandable stent includes a stent structure having a cylindrical shape that is self-expanding in a radial direction and includes a plurality of cylindrical rings disposed along a longitudinal axis of the stent structure. The stent structure is configured to exert a continuous outward radial force over time when implanted such that a diameter of the stent structure expands from a first value to a second value that is at least about 1.5 times the first value.

This invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more links. A Y-shaped member is comprised of a U-shaped member and a link having a curved portion and a straight portion to improve the flexibility and thereby improve the fatigue performance of the Y-link junction.

A flow diverter including a self-expanding tubular member having a plurality of expandable cells, each of the expandable cells having interconnected struts and bridges. The tubular member has a constrained configuration having a first outer diameter of at least 1.0 mm sized for delivery using a flow diverter delivery system and an expanded configuration having a second outer diameter larger than the first outer diameter. The tubular member has a proximal end zone, a distal end zone, and a middle zone located between the proximal end zone and the distal end zone. At least the middle zone of the tubular member is laser-cut to have a material coverage of at least 25% when the tubular member is in the expanded configuration. Related devices, systems, and methods of treating disease, particularly intracranial and cerebral aneurysms by deploying implantable expandable devices, are provided.

A percutaneous transluminal angioplasty device includes a catheter defining one or more lumens. A filter is coupled to the catheter adjacent a distal end of the catheter, and the filter is movable between an unexpanded and expanded configuration via a filter activation wire that extends through a lumen. An expandable balloon is coupled to the catheter proximally of the filter, and a stent is disposed over at least a portion of the balloon. To deploy the stent to a target site, the filter is first moved into its expanded position via the filter activation wire. Then, the stent is expanded, and the balloon is inflated to expand the stent further radially. The balloon is then deflated, the filter is contracted, and the catheter, balloon, and filter are removed from the body.