Patent ID: 8518064

Claim:
A method for occluding an artery in a patient to block or reduce blood flow to a neoplastic tissue or tumor comprising: a. puncturing an artery wall in an artery of a patient at a proximal artery entry site; b. extending a hollow needle through the proximal entry site into the artery lumen; c. extending the needle through the artery lumen; d. puncturing the artery wall at a distal artery exit site; e. ejecting an expandable biocompatible plug material through the distal end of the needle into the extravascular space surrounding the distal artery exit site; f. continuing to eject the expandable biocompatible plug material while retracting the needle back though the distal artery exit site into the artery lumen; g. continuing to eject the expandable biocompatible plug material in the artery lumen, such that the plug material continuously extends between the extravascular space surrounding the distal artery exit site into the artery lumen; h. allowing the plug material to expand in the extravascular space, in the distal artery exit site, and in the artery lumen, anchoring the plug material to the artery wall, wherein the patient has a neoplastic condition, and wherein expansion of the plug material forms an occluding plug in the artery lumen blocking or reducing blood flow between the artery and a neoplastic tissue or tumor in the patient.