Patent ID: 7998130

Claim:
A system for delivery of therapeutic agent from a source of therapeutic agent through a lumen, the system adapted for connection to the source, the system comprising: a hub having a proximal portion and a distal portion, the proximal portion adapted to be connected into fluid communication with the source of therapeutic agent; a delivery tube having a lumen, the delivery tube having a proximal end secured within the distal portion of the hub and a distal end that is remote from the hub; and a tubular lining extending within the lumen of the delivery tube, the tubular lining compatible with the therapeutic agent; wherein the system further comprises a collar permanently attached to the proximal end of the delivery tube, the collar being secured within the hub to provide a seal between the proximal portion and the distal portion of the hub, wherein the collar allows therapeutic agent delivered from the source to flow into the tubular lining, the collar and tubular lining configured to shield therapeutic agent from contacting materials that are not compatible with the therapeutic agent as the therapeutic agent enters the delivery tube.