Patent ID: 8529550

Claim:
A catheter system comprising: a catheter having a proximal end and a distal end; a drug delivery structure disposed on the distal end of the catheter, where the structure is a hollow structure with one or more apertures communicating from the interior to the exterior of said hollow structure, and a reservoir of a therapeutic agent within said drug delivery structure, said therapeutic agent comprising one of antagonists to angiogenic agents, cytotoxic agents, anti-Her-2, and anti CD20, and tumor necrosis factors; said drug delivery structure being disengageable from the distal end of the catheter; a mechanism at the proximal end of the catheter for disengaging said drug delivery structure from the distal end of the catheter; and a fixation means on said drug delivery structure that may be used within a body of a patient to implant the drug delivery structure to a depth within an intended tissue within the body of a patient.