Abstract: Medical appliances may be formed of multilayered constructs. The layers of the constructs may be configured with various physical properties or characteristics. The disposition and arrangement of each layer may be configured to create an overall construct with a combination of the individual properties of the layers. Constructs may be used to create vascular prostheses or other medical devices.

Abstract: Medical devices, including covered or coated stents and stent grafts are disclosed. In some embodiments, one or more layers of a covering may be bent, folded, inverted, everted, or otherwise disposed to cover and couple to a stent.

Abstract: Devices used to restrict flow within a blood vessel are disclosed. Devices within the scope of this disclosure include a braided lattice of nitinol wires that form self-expanding enclosures of an embolic structure. The devices may further include embolic particles disposed within the enclosures. Methods of deploying the devices with the embolic particles are disclosed. Methods of manufacturing the devices with the embolic particles disposed within the enclosures are disclosed.

Abstract: Medical balloons and methods used to retain and expand a stent within a stenosis or stricture of a bodily passage are disclosed. The balloons include a base material layer and a friction enhancing feature coupled to an exterior surface of the base material layer. The friction enhancing feature includes a second material layer disposed over the exterior surface to form a laminar formed balloon. The second material layer is more compressible than the base material layer to provide an increased static stent holding force.

Abstract: Sheets of material used in medical devices and filters are disclosed. The sheets may include a fibrous mat including a plurality of microfibers. The microfibers may include a polymer matrix and a plurality of additive particles. The additive particles may include carbon material particles, therapeutic micro particles, and any combination thereof. Medical devices and filters that use the sheets are disclosed. Methods of producing the sheets are also disclosed.

Abstract: Medical appliances may be formed of multilayered constructs. The layers of the constructs may be configured with various physical properties or characteristics. The disposition and arrangement of each layer may be configured to create an overall construct with a combination of the individual properties of the layers. Constructs may be used to create vascular prostheses or other medical devices.

Abstract: Medical appliances may be formed of multilayered constructs. The layers of the constructs may be configured with various physical properties or characteristics. The disposition and arrangement of each layer may be configured to create an overall construct with a combination of the individual properties of the layers. Constructs may be used to create vascular prostheses or other medical devices.

Abstract: Endovascular prostheses used to treat diseased blood vessels, such as arteries, are disclosed. In some embodiments, the endovascular prosthesis is configured to be implanted within the diseased blood vessels adjacent a diseased section. The endovascular prosthesis may include a selectively openable internal duct configured to sealingly receive an expandable endovascular prosthesis that extends into a side branch vessel of the diseased blood vessel.

Abstract: Devices used to restrict flow within a blood vessel are disclosed. Devices within the scope of this disclosure include a braided lattice of nitinol wires that form self-expanding enclosures of an embolic structure. The devices may further include embolic particles disposed within the enclosures. Methods of deploying the devices with the embolic particles are disclosed. Methods of manufacturing the devices with the embolic particles disposed within the enclosures are disclosed.

Abstract: Medical appliances may be formed of multilayered constructs. The layers of the constructs may be configured with various physical properties or characteristics. The disposition and arrangement of each layer may be configured to create an overall construct with a combination of the individual properties of the layers. Constructs may be used to create vascular prostheses or other medical devices.

Abstract: Sheets of material used in medical devices and filters are disclosed. The sheets may include a fibrous mat including a plurality of microfibers. The microfibers may include a polymer matrix and a plurality of additive particles. The additive particles may include carbon material particles, therapeutic micro particles, and any combination thereof. Medical devices and filters that use the sheets are disclosed. Methods of producing the sheets are also disclosed.

Abstract: A vascular prosthesis deployment device and related methods are disclosed. In some embodiments the deployment device may include a delivery catheter assembly. The delivery catheter assembly may include a pliant member, wherein the pliant member is configured receive a vascular prosthesis. The pliant member may also be configured to aid in incrementally deploying a vascular prosthesis.

Abstract: Endovascular prostheses used to treat diseased blood vessels, such as arteries, are disclosed. In some embodiments, the endovascular prosthesis is configured to be implanted within the diseased blood vessels adjacent a diseased section. The endovascular prosthesis may include a selectively openable internal duct configured to sealingly receive an expandable endovascular prosthesis that extends into a side branch vessel of the diseased blood vessel.

Abstract: Endovascular prostheses used to treat diseased blood vessels, such as arteries, are disclosed. In some embodiments, an endovascular prosthesis is configured to be implanted within a diseased blood vessel adjacent a diseased section. The endovascular prosthesis may include a fenestration tube through which a guidewire extends in a sealed configuration. The fenestration tube can be selectively openable and configured to sealingly receive an expandable endovascular prosthesis that extends into a side branch vessel of the diseased blood vessel.

Abstract: Endovascular prostheses used to treat diseased blood vessels, such as arteries, are disclosed. In some embodiments, an endovascular prosthesis is configured to be implanted within a diseased blood vessel adjacent a diseased section. The endovascular prosthesis may include a fenestration tube through which a guidewire extends in a sealed configuration. The fenestration tube can be selectively openable and configured to sealingly receive an expandable endovascular prosthesis that extends into a side branch vessel of the diseased blood vessel.

Abstract: Endovascular prostheses used to treat diseased blood vessels, such as arteries, are disclosed. In some embodiments, an endovascular prosthesis is configured to be implanted within a diseased blood vessel adjacent a diseased section. The endovascular prosthesis may include a fenestration tube through which a guidewire extends in a sealed configuration. The fenestration tube can be selectively openable and configured to sealingly receive an expandable endovascular prosthesis that extends into a side branch vessel of the diseased blood vessel.

Abstract: A vascular prosthesis deployment device and related methods are disclosed. In some embodiments the deployment device may include a delivery catheter assembly. The delivery catheter assembly may include an outer sheath, an intermediate sheath, and an inner sheath. One or more of the outer sheath, the intermediate sheath, and the inner sheath may be reinforced with a braided structure to prevent elongation and ovalization of the sheaths. The braided structure may include one or more yarn members imbedded in a material and formed from a plurality of twisted singles. The twisted singles may be formed from an aromatic polyamide material.

Abstract: Vascular access assemblies for facilitating hemodialysis of a patient. The vascular access assembly may include a first tubular conduit and a bifurcated stent disposed in the superior vena cava. The vascular access assembly may further include a second tubular conduit that connects that couples an arm of the bifurcated stent to the first tubular conduit to create a blood flow pathway between two locations of a vasculature of a patient.

Abstract: Hybrid stent prosthesis and related methods for their use are described herein. A hybrid stent prosthesis may include a self-expanding stent frame, a balloon-expandable stent frame, and a cover integrating the self-expanding stent frame and the balloon-expandable stent frame. In some cases, the hybrid stent prosthesis may further include a transition zone and/or one or more markers. In some circumstances, the hybrid stent prosthesis may be advanced through the anatomy of a patient by a delivery catheter system and deployed at a deployment site by a deployment system of the delivery catheter system. A balloon inflation corresponding to the balloon-expandable stent frame may anchor the hybrid stent prosthesis. After anchoring, the self-expanding stent frame may be allowed to expand to its deployed configuration. The distal end of the balloon-expandable stent frame may then be further expanded to match anatomy. In cases, the hybrid stent prosthesis deploys with/in a parent prosthesis.

Abstract: Expandable branching stent prostheses and methods of deployment for the same are discussed herein. An expandable branching stent prosthesis may include a trunk portion, a first branching portion, and a second branching portion that are for deployment at, respectively, a trunk, a first branch, and a second branch of a branching implant site of an anatomical system. Methods for deploying the expandable branching stent prostheses include delivering a deployment system including the expandable branding stent prostheses, a balloon, a distal end of a floss wire, and in some cases a sock to the branching implant site; connecting, to the floss wire, a distal end of a snare wire delivered to the branching implant site via the second branch, and using the two floss wires to manipulate the deployment system to effectuate the deployment. In some cases, the sock may be pulled down over the balloon after the deployment.