Patent ID: 7070582

Claim:
A therapeutic delivery system comprising: a first lumen having a proximal end and a distal therapeutic delivery end; and a second lumen having a proximal end and a distal orifice, the first lumen slidable relative to the second lumen, the second lumen slidable relative to the first lumen, the distal therapeutic delivery end of the first lumen extendible past the distal orifice of the second lumen, the distal orifice of the second lumen in fluid communication with an outside surface of the first lumen, the distal therapeutic delivery end of the first lumen having a piercing portion wherein a tissue sealing gasket is coupled to a surface of the first lumen and wherein the tissue sealing gasket has a tapered cross-section, a smaller portion of the tapered cross section being closer to the piercing portion than a larger portion of the tapered cross section.