Patent ID: 9038639
Filing Date: 2015-05-26
Classification: A61B,A61L,A61M

Abstract:
1. A cylindrical composite body comprising a multiplicity of rod-shaped bodies used for manufacturing a magnetic resonance tomography (MRT)-compatible medical instrument, wherein each of the rod-shaped bodies is comprised of one or more non-metallic filaments, a non-ferromagnetic matrix material, wherein the non-ferromagnetic matrix material encloses and/or agglutinates the one or more filaments and maintains the diameter of the rod-shaped bodies before and after placement in a subject and during removal, and doping particles included in the non-ferromagnetic matrix material, wherein the doping particles generate magnetic resonance tomography (MRT) artefacts thereby forming a doped matrix material and wherein each of the doping particles has a mass in the range of micrograms to nanograms, wherein the multiplicity of rod-shaped bodies have the same diameters or different diameters or a first rod-shaped body of the multiplicity of rod-shaped bodies is surrounded by several secondary rod-shaped bodies of smaller diameters, and wherein the multiplicity of rod-shaped bodies is surrounded by a non-doped matrix material.