Device for manipulating a bone or bone fragment or a surgical instrument, tool or implant and a method for positioning such a device

摘要

A device and a method for guiding an instrument, tool or implant with respect to a three-dimensional body. The device includes a rod shaped member with a central axis, a rear end, a front end and a length L2. A first targeting element is fixed to the rod shaped member coaxially to the central axis. The first targeting element has a first center, and is arranged on the rod shaped member with the first center at a distance A1>0 from the rear end. A second targeting element with a second center is fixed to the rod shaped member coaxially to the central axis with the second center at a distance A2

主权项

1. A device for guiding an instrument, tool or implant with respect to a three-dimensional body, the device comprising:
a rod shaped member with a central axis, a rear end, a front end and a length L2; a radiopaque first targeting element having a first center, wherein said first targeting element is affixed directly on said rod shaped member coaxially to said central axis with said first center at a distance A1>0 from said rear end; and a radiopaque second targeting element having a second center, wherein said second targeting element is fixed with respect to said rod shaped member coaxially to said central axis with said second center at a distance A2DK, said circular central line lying in a plane perpendicular to said central axis, said second targeting element being arranged in such manner that its circular central line is concentric with said central axis; and said second targeting element is fixedly attached to said rod shaped member by a radiolucent structure.