DEVICE FOR INTRAOPERATIVE RADIATION THERAPY WITH SHAFT WITH TWO-TAIL SWIVEL COUPLING

摘要

Electromedical apparatus for intraoperative radiotherapy by means of a linac. It includes an arm (A) in which an oscillator is assembled, at an extremity of it, which generates electromagnetic waves, and which supports, at an opposite extremity thereof, a radiating head (2) in which a linac (20) is assembled, emitting at its output (20') an electron beam, supplied by the oscillator through a guiding structure (6). The apparatus includes a first (4) and a second (5) rotary couplings, respectively including a fixed portion (41, 51) and a mobile portion (42, 52), endowed with sensors of the angular position of the mobile portions, which support the radiating head on the arm in roll and pitch motion. The guiding structure includes three separate rigid waveguides, of which one (61) at the output of the oscillator and one (62) of input (23) to the linac (20), and an intermediate one (63) therebetween, which connects them, with the heads of which they are respectively connected through the first and the second rotary couplings (4, 5).