Abstract:
Medical devices that include a tubular member with a plurality of braided filaments, each filament crossing another of the filaments at a respective crossing point forming sidewall and a plurality of pores in the sidewall that are sized to inhibit flow of blood through the sidewall into an aneurysm to a degree sufficient to lead to thrombosis and healing of the aneurysm when the tubular member is positioned in a blood vessel and adjacent to the aneurysm, the pores have an average pore size that is less than or equal to about 500 microns when the tubular member is in an expanded state, the filaments possessing antithrombogenic surfaces to increase antithrombogenicity of the medical device with pores substantially free of webs formed by antithrombogenic material, such that fewer than 5% of the crossing points have webs formed by antithrombogenic material thereby permitting the pores to be substantially free of webs.
Abstract:
A device for intravascular intervention can comprise an intervention element and an elongate manipulation member. The elongate member can comprise a hooked portion extending about a proximal portion of the intervention element. The hooked portion can have a first segment, a second segment, and a bend between the first and second segments, with the first segment and the second segment located on different sides of the intervention element. At least one of the first segment or the second segment can have an extending portion that extends into a region that is (i) between a top side and a bottom side of the intervention element, and (ii) distal to a proximal part of the intervention element. The extending portion and the proximal part can be aligned such that a line extending in a proximal-distal direction intersects the extending portion and the proximal part.
Abstract:
A medical device is provided. The medical device includes a vessel-engaging member attached to a distal end of a delivery wire via a connection mechanism. The vessel-engaging member includes a plurality of rows and a plurality of bridges positioned between each adjacent row, each of the bridges connecting a vertex of a first row with a corresponding vertex of a second row. The vessel-engaging member further includes first and second tapered sections coupled to the connection mechanism, each of the tapered sections projecting from a proximal row and tapering in a direction from the proximal row toward the connection mechanism, each of the tapered sections having a length measured along a longitudinal axis, wherein the length of the first tapered section is less than the length of the second tapered section.
Abstract:
Methods for forming an expandable tubular body having a plurality of braided filaments including a first filament including platinum or platinum alloy and a second filament including cobalt-chromium alloy. The methods include applying a first phosphorylcholine material directly on the platinum or platinum alloy of the first filament and applying a silane material on the second filament followed by a second phosphorylcholine material on the silane material on the second filament. The first and second phosphorylcholine materials each define a thickness of less than 100 nanometers.
Abstract:
A device for intravascular intervention can comprise an intervention element, an elongate manipulation member, and a joining element. The elongate member can comprise a hooked portion extending about a proximal portion of the intervention element. The joining element can substantially permanently attach the hooked portion to the intervention element.