Percutaneous vascular access portal and catheter

A double-lumen catheter for insertion into a blood vessel through an implanted access portal secured thereto, said catheter comprising

• a shaft forming a snug fit within said portal and having a tapered distal end and having a centrally-located axial lumen and a separate lumen parallel to the first,
• each lumen extending from an access opening adjacent the proximal end of said catheter to an opening adjacent its distal end,
• said distal opening each being located respectively at opposite sides of said distal end of said shaft, and
• a radially outwardly extending catheter flange secured to said shaft and spaced from its distal end in position to engage the proximal end of said access portal upon insertion of said catheter into said portal and to position the distal end of said catheter together with the adjacent lumen distal openings within said blood vessel.

A method for percutaneously accessing a patient's blood vessel comprising

• implanting an access portal within a patient,
• said portal having a cannula, a skirt secured to a distal end of said cannula, and a proximal end,
• said skirt being sutured to a wall of said blood vessel,
• said proximal end extending outwardly through the skin of said patient,
• inserting into said cannula a catheter with a conically-pointed trocar removably mounted in and extending from a distal opening of a centrally-located axial lumen thereof,
• to puncture said wall, and to position said distal opening within said blood vessel, and
• withdrawing said trocar to allow access to said blood vessel via said lumen.

A kit for providing percutaneous blood-vessel access comprising

• (1) a portal for implantation in a patient for an extended period of time including
• a cannula having a distal end forming an acute angle with respect to the main axis of the cannula,
• a skirt secured to said cannula and extending generally radially outwardly from said distal end,
• said skirt being adapted to be secured to the wall of a blood vessel with the proximal end of said cannula extending outwardly through the skin and with the axis of said cannula forming an acute angle with the axis of said blood vessel, and
• (2) a removable obturator forming a snug fit within the pasage of said cannula adapted to seal said passage,
• the distal end of said obturator forming an acute angle with respect to the main axis of the obturator matching the angularity of the cannula distal end,
• said obturator having adjacent its proximal end a radially outwardly extending flange overlying the margin of said portal cannula proximal end and serving as a stop to locate the distal end of said obturator in registration with the distal end of said cannula, and
• (3) a double lumen catheter interchangeable with said obturator for insertion into a blood vessel through said portal, comprising
• a shaft forming a snug fit within said portal and having a tapered distal end and having a centrally-located axial lumen and a separate lumen parallel to the first,
• each lumen extending from an access opening adjacent the proximal end of said catheter to an opening adjacent its distal end,
• said distal openings each being located respectively at opposite sides of said distal end of said shaft, and
• a radially outwardly extending catheter flange secured to said shaft and spaced from its distal end in position to engage the proximal end of said access portal upon insertion of said catheter into said portal and to position the distal end of said catheter together with the adjacent lumen distal openings within said blood vessel.