One-piece biocompatible absorbable rivet and pin for use in surgical procedures
    22.
    发明授权
    One-piece biocompatible absorbable rivet and pin for use in surgical procedures 失效
    一体式生物相容性可吸收铆钉和针脚用于外科手术

    公开(公告)号:US06846313B1

    公开(公告)日:2005-01-25

    申请号:US09667729

    申请日:2000-09-22

    IPC分类号: A61B17/58 A61B17/68 A61B17/56

    CPC分类号: A61B17/68

    摘要: A bioabsorbable rivet and pin fastener is formed as an elongated unit that may be used for anchoring, or for attachment of a fixation plate. The rivet has a head mechanically connected to two or more legs that extend generally distally from the head and may flex outwardly from a central rivet axis. The pin is integral with the rivet and oriented along the central axis by a connection such as a web or a plurality of braces, forming an integral, aligned, one-piece assembly that may, for example, be molded as a single piece. The connection breaks under force as the pin is driven into the rivet, so that the pin contacts internal surfaces of the legs and pushes the legs outward into frictional engagement with the surrounding bone. The one-piece assembly may be formed in a gated mold having a central pin with a relief passage that defines the braces between upper and lower portions of the rivet. The braces so formed at the weld line readily part from the mold, and are easily sheared when the pin is advanced during installation of the rivet.

    摘要翻译: 生物可吸收的铆钉和销紧固件形成为可用于锚定或用于附接固定板的细长单元。 铆钉具有机械连接到两个或更多个腿的头部,该两个或多个腿部从头部大致向远侧延伸并且可以从中心铆钉轴线向外弯曲。 该销与铆钉成一体并且通过诸如幅材或多个支架的连接件沿着中心轴线定向,形成整体的,对齐的整体式组件,其可以例如被模制成单件。 当销被驱动到铆钉中时,连接断裂,使得销接触腿的内表面并向外推动腿与周围的骨摩擦接合。 一体式组件可以形成在具有中心销的门控模具中,该中心销具有在铆钉的上部和下部之间限定支架的释放通道。 在焊接线处形成的支架容易地与模具成一部分,并且在铆钉安装期间当销前进时容易剪切。

    Wedge shaped suture anchor and method of implementation
    23.
    发明授权
    Wedge shaped suture anchor and method of implementation 有权
    楔形缝线锚及其实施方法

    公开(公告)号:US06726707B2

    公开(公告)日:2004-04-27

    申请号:US09923996

    申请日:2001-08-07

    IPC分类号: A61B1704

    摘要: A suture anchor is described which in one form may be easily fabricated from extruded material by angular cuts and bore holes which provide an offset pulling force to the suture. In an alternate and preferred embodiment the suture anchor is injection molded having an annular displaced corner and abutment wall which act to seat the suture anchor firmly within a bore hole. Novel application means are also disclosed which hold the suture anchor on a frangible shaft for insertion and upon completion of the insertion permit fracture of the frangible portion and removal of the instrument. In another form of the invention, the suture anchor comprises a substantially wedge-shaped body having a smaller distal end and a larger proximal end, means thereon for retaining a suture, and means thereon for releasable connection to an inserter shaft; a boundary surface and a plow surface of the body intersecting to form a biting edge at the proximal end of the body; and the boundary surface and an abutment surface of the body intersecting to form a cam surface at the proximal end of the body; and the biting edge being adapted to be in engagement with a first wall portion of a bore in a bone and the cam surface being adapted to be in engagement with a second wall portion of the bore opposed to the first wall portion; wherein tension on the inserter shaft is operable to move the cam portion along the bore second wall portion and rotate the body in the bore such that the biting edge bites into the bore first wall portion to lock the body in the bore.

    摘要翻译: 描述了一种缝合锚,其以一种形式可以通过角切口和钻孔轻松地由挤压材料制造,所述角切口和钻孔向缝合线提供偏移拉力。 在替代和优选实施例中,缝合锚固件被注塑成型,其具有环形移位的角部和邻接壁,其用于将缝合锚固件牢固地安置在钻孔内。 还公开了新颖的施加装置,其将缝合锚定件保持在易断裂的轴上用于插入,并且在完成易碎部分的插入允许断裂和器械的移除之后。 在本发明的另一形式中,缝合锚固件包括具有较小远端和较大近端的基本楔形体,用于保持缝合线的装置及其上的装置用于可释放地连接到插入器轴; 主体的边界表面和犁面相交,以在主体的近端形成咬合边缘; 并且所述主体的边界表面和邻接表面相交以在所述主体的近端处形成凸轮表面; 并且所述咬合边缘适于与骨中的孔的第一壁部分接合,并且所述凸轮表面适于与所述孔的与所述第一壁部相对的第二壁部分接合; 其中所述插入器轴上的张力可操作以沿着所述孔第二壁部分移动所述凸轮部分并且使所述主体在所述孔中旋转,使得所述咬合边缘咬入所述孔第一壁部分中以将所述主体锁定在所述孔中。