Abstract: RF connection cable 2 for interconnecting an RF coil and an RF processing apparatus in an RF system of a medical MRI apparatus. The connection cable 2 is comprised of an outer sleeve 6 enclosing an inner cable comprising RF conductors 24, an inner sleeve 20 and a shield 22. Between the inner sleeve 20 and the outer sleeve 6 a plurality of spacers in the form of large beads 12-i alternating with small beads 14-i are provided. In this way, a very flexible cable is obtained having comparatively low dielectric losses and a low capacitive coupling with the patient.

Abstract: RF connection cable 2 for interconnecting an RF coil and an RF processing apparatus in an RF system of a medical MRI apparatus. The connection cable 2 is comprised of an outer sleeve 6 enclosing an inner cable comprising RF conductors 24, an inner sleeve 20 and a shield 22. Between the inner sleeve 20 and the outer sleeve 6 a plurality of spacers in the form of large beads 12-i alternating with small beads 14-i are provided. In this way, a very flexible cable is obtained having comparatively low dielectric losses and a low capacitive coupling with the patient.

Abstract: A printing device in which a roll having a plurality of characters disposed thereon is displaceable with respect to at least one printing hammer. The printing hammer cooperates with a coil which, when excited, generates a field which by cooperation with a stationary field, puts the hammer into motion and drives it against the character on the roll to be printed. The hammer is arranged to be movable in the device so that the distance between the hammer and the roll is adjustable. A control device is provided which measures the hammer flying time and compares this time with a nominal flying time and which, in the case of a difference, displaces the hammer relative to the roll and also changes the driving force of the hammer.