Medical guidewires and structural parts therefor; IVR, namely, interventional radiology medical guidewires; PTCA, namely, percutaneous transluminal coronary angioplasty medical guidewires; medical spring guidewires, medical plastic clad guidewires; medical catheters and structural parts therefor; PTCA, namely, percutaneous transluminal coronary angioplasty guiding catheters; PTCA, namely, percutaneous transluminal coronary angioplasty balloon catheters; angiographic catheters; micro catheters...