FIBER BASED EMBOLISM PROTECTION DEVICE
First Claim
1. An embolism protection device comprising a. at least about 50 biocompatible surface capillary polymer fibers, b. a wire, c. a hypotube having a distal end and a proximal end, and d. a distal coil, wherein the fibers are distally bound and proximally bound with relative movement of the wire and the hypotube changing the distance between the distally bound end and the proximally bound end of the fibers, wherein the wire extends through a lumen of the hypotube, wherein the distal coil covers the w/e at its distal end, wherein the fibers have a first configuration in which the fibers are confined within a narrow profile configuration and a second configuration in which ends of the fibers are constrained while the remaining portion of the fiber is unconstrained with respect to the narrow profile, wherein the first configuration has substantially aligned fibers and the second configuration has the center of the fibers projecting outward to form a filtration matrix that conforms to a geometry of a surrounding vessel, and wherein relative movement of the wire and the hypotube transitions the fibers from the narrow profile configuration to the second configuration.
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Accused Products
Abstract
Improved embolism protection devices comprises fibers that can have one configuration for delivery of the device and a second configuration in which the device is deployed for filtering of flow within a vessel. In some embodiments, the fibers can be connected to a fiber support, which is connected to an actuating element. The actuating element controls the transition from the delivery configuration to the deployed configuration. The embolism protection device can comprise a guidewire. The fibers can be attached at one end to a fiber support structure and at another end to the guidewire. A hypotube can be attached to the proximal end of the fibers while the guidewire is attached at the distal end of the fibers with the guidewire extending within a central channel of the hypotube. The hypotube can be used to guide the delivery of treatment structures, such as a balloon and/or a stent.
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Citations
12 Claims
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1. An embolism protection device comprising
a. at least about 50 biocompatible surface capillary polymer fibers, b. a wire, c. a hypotube having a distal end and a proximal end, and d. a distal coil, wherein the fibers are distally bound and proximally bound with relative movement of the wire and the hypotube changing the distance between the distally bound end and the proximally bound end of the fibers, wherein the wire extends through a lumen of the hypotube, wherein the distal coil covers the w/e at its distal end, wherein the fibers have a first configuration in which the fibers are confined within a narrow profile configuration and a second configuration in which ends of the fibers are constrained while the remaining portion of the fiber is unconstrained with respect to the narrow profile, wherein the first configuration has substantially aligned fibers and the second configuration has the center of the fibers projecting outward to form a filtration matrix that conforms to a geometry of a surrounding vessel, and wherein relative movement of the wire and the hypotube transitions the fibers from the narrow profile configuration to the second configuration.
Specification
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- Resources
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Current AssigneeMedtronic Incorporated (Medtronic Plc)
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Original AssigneeLumen Biomedical, Inc.
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InventorsHinnenkamp, Thomas, Pokorney, Jim, Galdonik, Jason, Ogle, Matthew
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Granted Patent
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Time in Patent OfficeDays
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Field of Search
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US Class Current623/23.72
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CPC Class CodesA61F 2/01 Filters implantable into bl...A61F 2230/0006 circularA61F 2230/005 Rosette-shaped, e.g. star-s...A61M 2025/09175 having specific characteris...A61M 25/09 Guide wiresB33Y 80/00 Products made by additive m...
