Patent ID: 8814892
Filing Date: 2014-08-26
Classification: A61B,A61F

Abstract:
1. An acute stroke treatment device comprising a flexible delivery wire and a fiber-based clot engagement element that comprises at least one bundle of unwoven fibers, a first attachment element extending around the circumference of the flexible delivery wire wherein each fiber of the bundle is secured at one end to the first attachment element and wherein the bundle of fibers have a first low profile delivery configuration and a second extended, deployed configuration with a portion of the fibers flaring outward relative to the flexible delivery wire to have dimensions suitable to conform to the changing inner perimeter of a blood vessel, and an actuation tool that slides over the flexible delivery wire wherein the actuation tool is configured to engage the bundle to transition the fibers to the extended deployed configuration, wherein the first attachment element either comprises a slide that can translate over the delivery wire or an anchor that is secured at a fixed position around the circumference of the delivery wire, and wherein if the first attachment element has an anchor fixed to the delivery wire, the other end of the fibers are unsecured or are secured in a bundle at a second attachment element without fixed attachment to the actuation tool, and wherein if the first attachment element comprises a slide that can translate over the delivery wire, the other end of the fibers are unsecured or are attached to a second attachment element that can slide over the delivery wire.