Importance

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Abstract

A radioactive pellet injection apparatus includes a console (30) to be disposed beside a bed on which a patient is to be laid. The console (30) and the bed have brackets. An arm (39) is detachably coupled to the bracket of either one of the console (30) and the bed. The arm (39) is movable in either the horizontal or the vertical direction. A rotary driving unit (46) is mounted at a distal end of the arm (39) in such a manner that the tilt angle thereof can be adjusted about a horizontal axis (44) in response to a control signal. The rotary driving unit (46) carries a protective container (48) enclosing a capsule (60) with minute, spherical radioactive pellets enclosed therein, and a radiation detector (49) facing a catheter connecting section (50) extending from the capsule (60). A pump unit (32a) for supplying a carrier fluid for carrying radioactive pellets to the capsule (60) through a tube (51), a control circuit (32b) supplying a control signal to the rotary driving unit (46), and a detector circuit (32c) for processing a detection signal from the radiation detector (49) are disposed in the console (30).

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First Claim