Patent ID: 11944760
Assignee: BARD PERIPHERAL VASCULAR, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 21:
22. A catheter system, comprising:
a hemodialysis catheter including a hub coupled to a catheter tube having at least one lumen; and
a refreshing stylet configured to fit within the at least one lumen of the hemodialysis catheter including an elongated hollow body comprising:
a proximal portion coupled to a needleless connector;
a distal portion ending in a distal tip;
an interior surface;

an exterior surface coated with a sustained-release formulation including one or more anti-thrombotic agents configured to contact a luminal surface of the hemodialysis catheter and prevent thrombus formation on the luminal surface of the hemodialysis catheter, wherein the sustained-release formulation is configured for timely release over a range of 24-72 hours into the at least one lumen of the hemodialysis catheter; and
a side hole through the elongated hollow body connecting the interior surface with the exterior surface, the side hole configured to provide a locking solution to the at least one lumen of the hemodialysis catheter for locking the hemodialysis catheter between uses.