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In Brazil, prostate cancer is the kind of cancer that affects the major quantity of male population worldwide, the second most incident, only affecting less people than the nonmelanoma skin cancer which is the most frequently occurring in the population. There are several procedures for the treatment of prostate cancer, including brachytherapy using Iodine-125 seeds. This method is performed by inserting seed with radioactive iodine in the prostate of the patient. The seeds are composed of a titanium capsule measuring 0.8 mm in diameter and 4.5 mm in length with a silver wire measuring 0.5 mm in diameter and 3.0 mm in length adsorbed Iodine-125, which it is sealed by laser welding. The technology used in the iodine-125 seeds production processes are protected by patents and obtaining the production rights presents a high cost. The objective of this work is to develop the design of a device for counting the titanium tubes and silver wires used in making the seeds of iodine-125, this goal was achieved by establishing a methodology for the placement of silver wires and the movement for the counting process. Thus, it was designed, built and used a new device that is now fully operational. Stepper motors, and optical sensors were used to assist in the automation of the assembly process.

Projeto e desenvolvimento de um dispositivo automático de controle e alimentação de tubos de titânio e fios de prata para a produção de sementes de Iodo - 125