公开(公告)号：US07563275B2

公开(公告)日：2009-07-21

申请号：US10973524

申请日：2004-10-26

申请人： Mark H. Falahee ,  Leonel Dominguez ,  John R. Pepper ,  Ian McDermott ,  K. Arjun Joseph ,  James Hooper

发明人： Mark H. Falahee ,  Leonel Dominguez ,  John R. Pepper ,  Ian McDermott ,  K. Arjun Joseph ,  James Hooper

IPC分类号： A61B17/84 ,  A61F2/08 ,  A61B17/60

CPC分类号： A61B17/7064 ,  A61B17/1757 ,  A61B17/8665 ,  A61B17/8695

摘要： A system for performing bone arthrodesis includes an implant for bone arthrodesis and a bone fastening device. The implant includes a fastener with an elongated shaft having a head at one end and a bone-piercing point at the opposite end. A first washer has structure for engaging the head of the shaft so as to be polyaxially pivotable with respect to the head. A locking member has structure for engaging the shaft. The locking member can have a second washer pivotally engaged thereto. The bone fastening device can include an elongated cannula with a collet for detachably engaging the first washer and for advancing the first washer. Structure is provided for engaging the fastener and for advancing and rotating the fastener through the collet and through the first washer. The bone arthrodesis device further includes a lower end portion extending from the cannula. The lower end portion has structure for detachably engaging the locking member. The fastener, first washer, and locking member are aligned such that the advancing fastener will advance through the first washer, drill through the bone, and move into the locking member. A method for performing bone arthrodesis is also disclosed.

摘要翻译： 用于执行骨关节固定术的系统包括用于骨关节固定术的植入物和骨固定装置。 植入物包括具有细长轴的紧固件，其在一端具有头部，在相对端具有骨刺穿点。 第一垫圈具有用于接合轴的头部以便相对于头部进行多轴转动的结构。 锁定构件具有用于接合轴的结构。 锁定构件可以具有与其枢转接合的第二垫圈。 骨固定装置可以包括细长插管，其具有用于可拆卸地接合第一垫圈并用于推进第一垫圈的夹头。 提供用于接合紧固件并且用于使紧固件前进和旋转通过夹头并通过第一垫圈的结构。 骨关节固定术装置还包括从套管延伸的下端部分。 下端部具有用于可拆卸地接合锁定构件的结构。 紧固件，第一垫圈和锁定构件对准，使得前进紧固件将前进通过第一垫圈，钻通过骨头并移动到锁定构件中。 还公开了一种执行骨关节融合的方法。