Instrument for access to the spinal area, for surgery, has a trocar sleeve which can be fixed in human tissue made of plastics invisible to nuclear spin radiology and metal which can be seen, for use with minimal invasion

摘要

The instrument to give access with minimal invasion into the spinal zone, for magnetic resonance (MR) compatible instruments, is aligned and positioned under MR control. The instrument is of plastics, which is invisible on a nuclear spin radiology view, with a metal which can be seen. The trocar sleeve (1) can be fixed in human tissue (2).