Tungsten alloy shielding needle tube, made of tungsten alloy, is a medical instrument used for medical injection of radioactive medicine.

Nuclear medicine is a new comprehensive interdisciplinary to research and diagnose of the life sciences and basic medical through radionuclides and nuclear technology. Its examination and treatment projects are more and more popular, which has penetrated into clinical subjects. In the process of radiopharmaceutical preparation, packaging and injection, the staff would receive the radiation, which is affected by external irradiation from radioactive drugs, radioactive drugs activity, size and dose of radiation source distance, the residence time and the degree of shielding.

 

 

Radiopharmaceutical is a kind of special medicine containing radioactive nuclide for medical diagnosis and treatment. It’s a radioactive nuclide labeled compound or biological agent used for medical diagnosis or treatment in the body, such as the emission of pure beta radiation therapy drugs 32P, 89Sr, 90Y, etc.

 

Tungsten alloy density up to 16.5-19.0g/cm3, which has good shielding effectiveness on radioactive particles. In order to protect patients, doctors, nurses and others from radiation damage, the source must be isolated and shielded. Radioactive material must be controlled at a sufficiently low level of radioactivity so as not to cause harmful ionizing radiation that would cause lung cancer, skin cancer and other cancers. Tungsten alloy shield is selected as shielding material because tungsten alloy has excellent radiation absorption ability, high density (density is two times higher than lead), and good corrosion resistance.