| http://www.w3.org/ns/prov#value | - The distal end of dye conduit 17 is sealingly connected in fluid communication with opening 22 of tip portion 16, facilitating the discharge of radiopaque dye or other fluids into the occupied blood vessel for determining with the aid of x-ray photography the position of the catheter tip portion and of the occlusion sought to be opened.
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