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    Implantable filter
    1.
    发明授权
    Implantable filter 失效
    可植入式过滤器

    公开(公告)号：US4817600A

    公开(公告)日：1989-04-04

    申请号：US53354

    申请日：1987-05-22

    申请人： James K. Herms ,  Gaillard R. Nolan ,  Jonathan McGrath ,  Mark J Tolkoff

    发明人： James K. Herms ,  Gaillard R. Nolan ,  Jonathan McGrath ,  Mark J Tolkoff

    IPC分类号： A61M1/36 ,  A61F2/00 ,  A61F2/01 ,  A61B17/00

    CPC分类号： A61F2/01 ,  A61F2002/011 ,  A61F2002/016 ,  A61F2230/005 ,  A61F2230/0067

    摘要： A blood clot filtration device, for implantation percutaneously, for preventing movement of blood clots within a blood vessel. The device has a head and a plurality of legs extending therefrom. The legs include a first linear leg portion of predetermined length emanating distally from the head generally parallel to the axis of the device; a second multi-angled leg portion of relatively greater length extending generally outwardly from the distal end of the first linear leg portion at an acute angle to the axis, to form, with other second leg portions, a conical aspect, the second leg portion having a series of discrete linear segments arrayed generally tangent to a cone defined by the second leg portions of the set of legs; and a hook portion at the distal end of each the leg extending outwardly, away from the axis in a manner for engaging the blood vessel to fix the position of the device therewithin. The configuration of the legs, including the first linear portion, and the use of a high strength titanium alloy for the head, formed by fusing, and legs produces a filter which is able to tolerate severe compression for introduction percutaneously through a small sheath without yielding. Preferably a central wire segment is disposed axially, with the first linear leg portions of the filter disposed closely thereabout.

    BIOERODIBLE WRAPS AND USES THEREFOR
    2.
    发明申请
    BIOERODIBLE WRAPS AND USES THEREFOR 有权
    生物不便的威胁及其用途

    公开(公告)号：US20120330437A1

    公开(公告)日：2012-12-27

    申请号：US13502759

    申请日：2010-10-28

    申请人： Mohammed El-Kurdi ,  J. Christopher Flaherty ,  Yi Hong ,  Jonathan McGrath ,  Lorenzo Soletti ,  John Stankus ,  David Vorp ,  William Wagner

    发明人： Mohammed El-Kurdi ,  J. Christopher Flaherty ,  Yi Hong ,  Jonathan McGrath ,  Lorenzo Soletti ,  John Stankus ,  David Vorp ,  William Wagner

    IPC分类号： A61F2/04

    CPC分类号： A61F2/06 ,  A61F2/04 ,  A61F2/062 ,  A61F2002/072

    摘要： A tubular tissue graft device is provided comprising a tubular member and a restrictive fiber matrix of a bioerodible polymer about a circumference of the tubular tissue. The matrix may be electrospun onto the tubular tissue. In one embodiment, the tubular tissue is from a vein, such as a saphenous vein, useful as an arterial graft, for example and without limitation, in a coronary artery bypass procedure. 5 Also provided is method of preparing a tubular graft comprising depositing a fiber matrix of a bioerodible polymer about a perimeter of a tubular tissue to produce a tubular tissue graft device. A cardiac bypass method comprising bypassing a coronary artery with a tubular tissue graft device comprising a vein and a restrictive fiber matrix of a bioerodible polymer about a circumference of the vein also is provided.

    摘要翻译： 提供了一种管状组织移植装置，其包括围绕管状组织的圆周的生物可蚀解聚合物的管状构件和限制性纤维基质。 基质可以电纺到管状组织上。 在一个实施例中，管状组织来自静脉，例如隐静脉，可用作动脉移植物，例如但不限于冠状动脉旁路手术。 还提供了制备管状移植物的方法，其包括围绕管状组织的周边沉积生物可蚀解聚合物的纤维基质以产生管状组织移植装置。 还提供了一种包括绕管冠状动脉的心脏旁路方法，所述管状组织移植装置包括围绕静脉周围的静脉和生物可蚀解聚合物的限制性纤维基质。