Radioactive particle chain connected by controllable and fast degradable magnesium and magnesium alloy
A technology of radioactive particles and rapid degradation, applied in the field of medical devices, can solve the problems of uneven particle dose distribution, affecting the overall curative effect of clinical radioactive particles in brachytherapy, and difficulty in maintaining the distance between particles in a straight line, achieving uniform distribution and excellent Mechanical properties, effect of good compatibility
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[0027] Taking the most commonly used 6711 iodine-125 particles in clinical practice as an example, its sealed shell is a miniature titanium tube with a diameter of 0.8 mm and a length of 4.5 mm (such as figure 2 shown). Clean the titanium tube sealed with radionuclide and the magnesium or magnesium alloy wire with a diameter of ≤0.8mm and a length of 5mm, and polish the surface of the magnesium and magnesium alloy wire with metallographic sandpaper. Iodine-125 particles ( figure 1 -②) and magnesium and magnesium alloy wire ( figure 1 -①) Welded end to end to form a radioactive particle chain of a certain length. The length of the particle chain depends on the number of particles. Particle chains of a certain length can be made in batches in advance, and intercepted according to needs before surgery, or particle chains of various lengths can be made according to the treatment plan. During the operation, the prepared particle chains are loaded into a matching implant gun, an...
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