| 摘要 |
<p>A catheter of rubber, polyvinyl chloride, or a metal, has a coating on its inner and outer surfaces of a cured elastomeric silicone material. Suitable rubbers, metals, and silicone materials, are exemplified and the bond between the catheter and the coating may be improved by the use of an exemplified primer. The bond may also be improved by treating the catheter with ultra-violet or X-ray radiation. The silicone material may contain silica as a filler and is applied by dipping the catheter into a solution of the silicone and then slowly withdrawing the catheter. The catheter may be dipped in the coating solution more than once and the silicone material cured at room temperature or by the application of heat. The coatings on the inner and outer surfaces of the catheter may be of different thicknesses. The catheter may be a balloon catheter.</p> |
