Abstract: A layer-sintered valve seat ring is disclosed. The layer-sintered valve seat ring includes at least two materials including a function material for a tribological contact with an opposite runner and a support material for the function material. The support material includes: C: 0.5 to 1.8% by weight; Cr: 3 to 16% by weight; Mo: 1 to 5% by weight; W: 0.5 to 5.5% by weight; V: 0.4 to 4.0% by weight; Cu: 12 to 25% by weight; Fe: 41.3 to 82.6% by weight; Mn: up to 0.6% by weight; Si: up to 1.8% by weight; and a remainder of production-related contamination in the form of at least one of Ni, Co, Ca, P, and S that are present in contents of <0.3% by weight each.

Abstract: In an operating table system for the computer tomography assisted performance of operations on patients, including an operating table 10 with a subframe 14 and a patient support surface 12 releasably connected with the subframe, the patient support surface means 12 has a frame 16 connected with the subframe 14 and an x-ray permeable patient support plate 20 longitudinally slidably carried in the frame 16, with a support frame 44 intended for the reception of the support plate in a computer tomography system 40 having coupled with it a coupling station 46 for the transfer of the support plate from the operating table 10 to the support frame 44 and vice versa.