Abstract: An implantable device for venous or peritoneal access including a housing including a void having distal a proximal openings; an insert for insertion through the proximal opening comprising a venous or peritoneal catheter; a valve element mounted in a cylindrical recess of the insert; an extracorporeal coupling member of which a terminal portion can be inserted into a proximal recess of the valve element; one or two conduits extending from the catheter to the proximal end of the coupling member via the valve element and the insert for providing fluid communication, which can be interrupted by rotating the coupling member. The coupling member can be extracted from the recess only in a state of interrupted communication.

Abstract: A transcutaneous portal arrangement including a portal body having a bottom wall with a through-passing opening or transit for accommodating a catheter. A tubular element that fits in the portal body includes an end-portion which is inserted into the end-portion of the catheter. A clamping structure clamps the end-portion of the tubular element against the bottom wall around the through-passing opening so as to sealingly clamp the outer wall and the inner wall of the catheter around the edge of the opening and around the periphery of the tubular element, respectively.