| 摘要 |
A flexible source wire (10) is provided containing a radioactive source (160) that is capable of maneuvering through a tortuous narrow passage to a treatment site within the body. This source wire (10) includes an elongated flexible housing tube (120) with its proximal end (140) (i.e., the treatment end) modified to receive a radioactive core (160). The preferred embodiment of the source wire (10) is constructed from a material exhibiting little or no memory retention when bent such as certain nickel/titanium alloys. Both ends (140, 150) of the source wire (10) are sealed and the proximal end (140) of the source wire (10) is rounded to allow ease of movement as it travels through the bends and turns in the body. |
