Patent ID: 6442822
Filing Date: 2002-09-03
Classification: A61N,Y10T

Abstract:
A process for manufacturing a radioactive source wire for irradiating diseased tissue, said process comprising the steps of:providing a thin, flexible tube, said tube having a wall thickness, an interior surface, an exterior surface, a distal end, a proximal end, and a lumen; enlarging the lumen of said proximal end of said tube to form a modified segment, wherein a wall thickness of said modified segment is thinner than a wall thickness of an unmodified section adjoining the modified segment; inserting a plug into said tube, wherein a portion of said plug is located in the lumen of said unmodified section; inserting a radioactive core into the modified segment of said tube; and sealing said distal end and said proximal end of said tube; said tube, plug, and radioactive core forming a composite source wire for performing radiation treatment.