A split-tip catheter for placement within the vasculature of a patient and for use in hemodialysis or other suitable procedures is disclosed. The electrical wires respectively include a section which is to form part of a water-sealed portion. The pin includes a front part which is directed obliquely forward relative to a rear part thereof and towards front parts of a second wall surface close to a guide surface of the sleeve when the pin is located in a ready position in said sleeve. And dummy rows and columns generate replica delay signals which guarantee timing margin and reduce cycle time.