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    • 1. 发明申请
    • SELF-TAPPING BIOCOMPATIBLE INTERFERENCE BONE SCREW
    • 自攻生物相容性干涉骨螺钉
    • WO2009099963A3
    • 2009-12-30
    • PCT/US2009032704
    • 2009-01-30
    • CAYENNE MEDICAL INCHOOF JORDAN ABAIRD KEVIN NHARPER DEREK J
    • HOOF JORDAN ABAIRD KEVIN NHARPER DEREK J
    • A61B17/86
    • A61B17/864A61B17/8605A61B17/861A61B17/8615A61B17/8635A61B17/888A61F2/0811A61F2002/0858A61F2002/0882
    • A biocompatible interference screw for soft tissue or bone-to-bone fixation comprises a screw body extending from a screw head to a distal tip of the screw. The screw body has an outer surface, and comprises polyether-ether-ketone (PEEK) material. Advantageously, the body outer surface has a textured surface finish for substantially improving pull-out strength of the interference screw. The textured surface finish is textured, in preferred embodiments, with a minimum of approximately 16 micro inches of surface roughness. The screw head comprises a tapered square keyhole for receiving a distal end of a driver instrument. The screw comprises a series of threads, which have a relatively smooth profile, in order to prevent graft tissue laceration as the screw is being inserted. The distal tip of the screw body comprises a narrow tip, and a distal end of the screw body is angled inwardly toward the narrow distal tip.
    • 用于软组织或骨与骨固定的生物相容干涉螺钉包括从螺钉头部延伸到螺钉的远端尖端的螺钉主体。 螺钉体具有外表面,并且包括聚醚醚酮(PEEK)材料。 有利地,本体外表面具有纹理化表面涂层,用于显着提高干涉螺钉的拉出强度。 在优选实施例中,纹理化表面处理被纹理化,具有最小约16微英寸的表面粗糙度。 螺钉头包括用于接纳驾驶员器械的远端的锥形方形钥匙孔。 螺钉包括一系列具有相对平滑轮廓的螺纹,以便在螺钉插入时防止移植组织撕裂。 螺钉主体的远侧末端包括窄的末端,并且螺钉主体的远侧末端向着窄的远侧末端向内倾斜。