Measurement device for external fixation frame

摘要

A protractor for use with an external fixation frame is provided. The protractor may include a face having angle designations thereon and a set of opposed and extending flanges projecting from said face. The flanges may connect to a portion of an external fixation frame, such as a ring (or other component) of the frame. The face may also include a post member to which a rotatable dial is mounted. An elongate member may be pivotally connected to a portion of the post member and may include a clamp. The clamp may be used to connect to an alternate portion of an external fixation frame, such as a strut of the frame. Thus, the protractor may be connected to two points on an external fixation frame so as to measure the angle between such points. Related methods of using the aforementioned protractor are also disclosed.

主权项

1. An instrument for determining an angle between a first portion and a second portion of an external fixation device comprising:
a face having a connector for engaging the face to the first portion of the external fixation device; a rotatable dial mounted to the face; an elongate member coupled to the rotatable dial, wherein the elongate member is pivotable relative to the face within a first plane and rotatable relative to the face within a second, different plane; and a coupling engaged to the elongate member for connecting to the second portion of the external fixation device, wherein the first portion of the external fixation device is rotatably connected to the second portion of the external fixation device.