Patent ID: 7914478

Claim:
An intrapelvic cancer therapeutic agent perfusion method for therapy of a cancer tissue site occurring within the pelvis of a patient, said method comprising: percutaneously inserting a tip of a first sheath, which is a tubular body, into the femoral artery of the patient; percutaneously inserting a tip of a second sheath, which is a tubular body, into the femoral vein of the patient; percutaneously inserting a first balloon catheter, having an inflatable first balloon at the tip of a flexible tubular body, into a predetermined site within the aorta of the patient through the femoral artery; percutaneously inserting a second balloon catheter, having an inflatable second balloon at the tip of a flexible tubular body, into a predetermined site within the vena cava of the patient through the femoral vein; blocking the blood flow at a lower limb side arterial site, lower than the predetermined site within the aorta; blocking the blood flow at a lower limb side venous site, lower than the predetermined site within the vena cava; inflating the first balloon to thereby form an intraarterial closed region between the predetermined site within the aorta and the lower limb side arterial site; inflating the second balloon to thereby form an intravenous closed region between the predetermined site within the vena cava and the lower limb side venous site; administering a body fluid containing a cancer therapeutic agent to the intraarterial closed region, through the first sheath; and recovering a body fluid containing the cancer therapeutic agent from the intravenous closed region through the second sheath at a first rate, said first rate being 10 ml/min-40 ml/min greater than a second rate at which the body fluid containing the cancer therapeutic agent is administered through the first sheath.