Abstract: A particle includes a ferromagnetic material, a radiopaque material, and/or an MRI-visible material.

Abstract: Embolization, as well as related particles, compositions, and methods, are disclosed.

Abstract: A particle includes a ferromagnetic material, a radiopaque material, and/or an MRI-visible material.

Abstract: Embolization, as well as related particles, compositions, and methods, are disclosed.

Abstract: A particle includes a ferromagnetic material, a radiopaque material, and/or an MRI-visible material.

Abstract: The present invention provides a sectional crimped graft that allows graft flexibility where required and limits the overall longitudinal extension. The present invention overcomes the disadvantage of fully crimped grafts by controlling the number of crimps per unit length, crimp height, crimp geometry and their location along the graft wall, dependent on the particular end-use application. In so doing, flexibility and elongation can be controllably tailored only in areas where significant anatomical angulation is present. It may also be useful in applications other than stent grafts such as surgical grafts for aortic and peripheral areas. Limiting the overall graft longitudinal extension also facilitates the deployment of the stent-graft into the blood vessel.

Abstract: Embolization, as well as related particles, compositions, and methods, are disclosed.

Abstract: A magnetically steerable catheter system and method of using the system is provided. The system comprises an outer elongated, flexible member having a proximal and distal end, an inner elongated, flexible, member having a proximal end and a distal end, the inner member slidably disposed within the outer member. The system further comprises an electromagnet disposed on the distal end of one of the outer member and inner member, and a magnetically attractive element disposed on the distal end of another of the outer member and inner member. The magnetically attractive element is configured for magnetically interacting with the electromagnet to deflect the distal end of the inner member.

Abstract: Embolization, as well as related particles, compositions, and methods, are disclosed.

Abstract: A particle includes a ferromagnetic material, a radiopaque material, and/or an MRI-visible material.

Abstract: Embolization, as well as related particles, compositions, and methods, are disclosed.

Abstract: A particle includes a ferromagnetic material, a radiopaque material, and/or an MRI-visible material.

Abstract: A valve may include (a) a housing defining a valve lumen adapted for fluid connection with a lumen of a catheter; (b) a substantially conical valve member coupled to the housing and extending across the valve lumen to control flow therethrough; (c) a plurality of slits extending through the valve member and separated from one another circumferentially around the valve member; and (d) a ramp formed within a distal end of the valve lumen extending proximally from a distal tip of the valve member toward a ramp vertex separated from the distal tip by a predetermined distance.

Abstract: A particle includes a ferromagnetic material, a radiopaque material, and/or an MRI-visible material.

Abstract: A valve may include (a) a housing defining a valve lumen adapted for fluid connection with a lumen of a catheter; (b) a substantially conical valve member coupled to the housing and extending across the valve lumen to control flow therethrough; (c) a plurality of slits extending through the valve member and separated from one another circumferentially around the valve member; and (d) a ramp formed within a distal end of the valve lumen extending proximally from a distal tip of the valve member toward a ramp vertex separated from the distal tip by a predetermined distance.

Abstract: A central venous catheter is provided having an outer tubular member and an inner tubular member that are preferably formed as a single integrated tube containing polymer material of different durometer and varying amounts of radiopaque filler material. The polymer durometer of the inner tubular member is higher than the polymer durometer of the outer tubular member. The percentage by weight of the filler material contained in the inner tubular member is higher than that of the outer tubular member. The combination of the higher durometer inner tubular member and the lower durometer outer tubular member along the length of the tube provides the desired tensile strength, hardness, chemical resistance and fatigue resistance and at the same time provides the desired flexibility and radiopacity.

Abstract: Ferromagnetic particles and methods are disclosed.

Abstract: Embolization, as well as related particles and methods, are described.

Abstract: Embolic compositions and methods of delivering the compositions are disclosed. In some embodiments, the embolic compositions include a shape memory material.

Abstract: A composition includes a plurality of particles. At least some of the plurality of particles include cross-linked polyvinyl alcohol and have a diameter of about 500 microns or less. The particles have a first average pore size in an interior region, and a second average pore size at a surface region. The first average pore size being greater than the second average pore size. The composition also includes a carrier fluid. The plurality of particles being in the carrier fluid.