发明名称 Rocker mechanism
摘要 An orthopedic instrument designed to engage a rod within a fixation element during a surgical procedure is described. The present invention has a distal end portion designed to hold a fixation element such as a pedicle screw while the rod is positioned within the fixation element. The instrument comprises a series of arms which form the grasping and handle portions of the device.
申请公布号 US8777953(B1) 申请公布日期 2014.07.15
申请号 US201113267049 申请日期 2011.10.06
申请人 Greatbatch Ltd. 发明人 Khalili Farid B.
分类号 A61B17/70 主分类号 A61B17/70
代理机构 代理人 Winn Steven W.
主权项 1. An orthopedic instrument, comprising: a) a left arm having a left arm proximal end spaced from a left arm distal end, a right arm having a right arm proximal end spaced from a right arm distal end, and an intermediary arm having an intermediary arm proximal end spaced from an intermediary arm distal arm, wherein the intermediary arm proximal end is connected to the left arm with the right arm distal end contacting an intermediary arm outer surface distal the connection of the intermediary arm to the left arm, thereby providing a fulcrum point between the right and intermediary arms; b) a grasping portion comprised of opposing first and second prongs, the first prong extending from the distal end of the left arm and the second prong extending from the distal end of the intermediary arm; c) a handle portion formed by the proximal ends of the left and right arms; and d) wherein when the proximal ends of the opposing left and right arms are brought towards each other, the right arm distal end contacts the intermediary arm outer surface at the fulcrum point, the distal end of the intermediary arm movable toward the opposing distal end of the left arm, thus the opposing first and second prongs at the distal ends of the respective left and intermediary arms are movable from a first prong position spaced from each other to a second prong position closer than the first position.
地址 Clarence NY US