A radiotherapy tungsten needle usually refers to a slender tool used during radiotherapy, and its material is tungsten or tungsten alloy. These tungsten needles are designed to locate and release radioactive isotopes within the patient’s body to deliver localized, targeted radiation therapy.
Here are some key features and applications of tungsten needles for radiation therapy:
1. High Density: The high density of tungsten gives the tungsten needle a clear edge in imaging and treatment planning, helping to pinpoint the location of radioactive isotopes.
2. Directional and penetrating power: Radiation therapy tungsten needles are designed to penetrate the patient’s tissue and release radioactive isotopes to precisely irradiate tumor tissue. Its shape and design help direct and control radiation dose.
3. High melting point: Due to the higher temperatures involved in radiation therapy, tungsten’s high melting point enables it to maintain structural stability under these conditions.
4. Punctureability: Radiation therapy tungsten needles can be designed to puncture tumor tissue, allowing radioactive isotopes to be released directly into the tumor site.
5. Tumor treatment: Radiation therapy tungsten needles are mainly used for tumor treatment. By inserting these tungsten needles into tumor tissue, radiation can be released locally to kill tumor cells to reduce or control tumor growth.
Radiotherapy tungsten needles play an important role in some radiotherapy techniques, such as internal irradiation therapy (brachytherapy). In these techniques, radiotherapy tungsten needles are placed within or near tumor tissue to deliver localized high doses of radiation to minimize damage to surrounding healthy tissue.
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