Spring coils refer to medical devices used to treat arterial stenosis. They are mainly made of platinum. An appropriate amount of tungsten is added to platinum to form the material used to produce spring coils.
The production technology of this kind of spring coil is in the hands of a few people, and it mainly involves the molding of materials and the most important post-processing of the spring coil. This kind of spring coiling and molding requires special shaping treatment, and welding process is carried out after shaping. The finished spring coil is not a simple spring. It is welded to another object. This object will melt immediately after being energized and return the spring to its original shape.