Radioactive biliary drainage device

Used in internal radiotherapy for patients with malignant biliary obstruction. Allows simultaneous bile drainage and radiotherapy.

The device is easy to operate. Seeds can be placed into the drainage tube outside the body and then implanted, allowing simultaneous drainage and radiotherapy. The device has multiple seed channels, ensuring a uniform radiation dose field. Seed loading sites can be selected based on the tumor size and location for precise internal radiotherapy.
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