A New Teflon Catheter for Percutaneous Catheterization and Contrast Material Injection

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Abstract
A new type of radiopaque catheter made of Teflon has been described. Its small end-hole makes possible its sliding over the spring guide and gaining access to a superficial vessel, utilizing the Seldinger technic. Many large side-holes minimize recoil, facilitate instantaneous mixing of contrast material with blood, and avoid massive injection of small vessels because of accidental wedging of the tip. Our conclusion, based on extensive experimental and clinical trials, is that the many features of this new instrument make it especially suited to percutaneous introduction and contrast visualization of the cardiovascular system.

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