CT \mri \angio syringes , use for medical imaging diagnostic radiology . also have another name . such as contrast injectors , ct ontrast media injectors syringes , CT contrast medium injectors syringes , CT high pressure syringes, CT power injectors syringes, CT high pressure angiographic syringes , major brand have bayer medrad , mallinkcrodt Liebel flarsheim , bracco Empower , Medrad Imaxeon , Medtron , Nemoto ,seacrown , anke , sinomdt.