公开(公告)号：US4247285A

公开(公告)日：1981-01-27

申请号：US32265

申请日：1979-04-23

申请人： Jose L. Roig-Greene

发明人： Jose L. Roig-Greene

IPC分类号： A61C5/02 ,  A61C3/00

CPC分类号： A61C5/026

摘要： A method of removing an endodontic instrument fragment from a root canal, and a retrieving assembly for practicing the method. A wire is formed into a loop having two free ends opposite the loop. The free ends of the wire are passed through an elongated tube so that the loop extends from one side of the tube and the free ends extend from the opposite side of the tube. The loop is bent so that it makes a positive angle with respect to the tube, and the loop and a portion of the tube are inserted into the root canal alongside the fragment. The loop is slid passed the fragment so that the closed portion of the loop is on the opposite side of the fragment than the tube, and then the free ends of the wire are gripped with a hemostat and the hemostat is rotated about an axis perpendicular to the direction of elongation of the tube, to cause the loop and tube to tightly hold the fragment. Then the tube and loop, with tightly held fragment, are withdrawn from the root canal.

摘要翻译： 从根管中去除牙根管器械碎片的方法，以及用于实施该方法的检索组件。 线形成为具有与环相对的两个自由端的环。 线的自由端通过细长管，使得环从管的一侧延伸，自由端从管的相对侧延伸。 弯曲环，使得其相对于管形成正角度，并且环和管的一部分沿着片段插入根管中。 该环被滑过片段，使得环的封闭部分在与片断相反的一侧，然后电线的自由端用止血钳夹紧，止血器围绕垂直于 管的伸长方向，使环和管紧紧夹住碎片。 然后将带有紧紧保持的片段的管和环从根管中取出。