Device for loading hollow implantation needles with radiation sources from rows of seeds for interstitial brachytherapy of tissue

摘要

The needle filling apparatus consists of a rotary magazine (10) carrying a rolled chain of radio sources (1), a drive for transferring the chain through a guide (12) to a hollow needle (9) connected to it, and a cutter (8) to divide the chain at a set point. The needle filling apparatus consists of a rotary magazine (10) carrying a rolled chain of radio sources (1), a drive for transferring the chain through a guide (12) to a hollow needle (9) connected to it, and a cutter (8) to divide the chain at a set point. It also has a control unit to prevent damage to the radio source chain cover, and all the essential components of the apparatus are enclosed in a radiation absorbent housing. The magazine drive can be in the form of a friction roller or a toothed gear or rack.