A method and apparatus for local infusion of a variety of biological
response modifiers (BRMs) and chemotherapeutic agents including tumor
necrosis factors (TNF) is described. In one embodiment, the device
contains a synthetic pouch compartmentalized into three or more chambers,
and an electronic apparatus controlling and modulating the delivery of
the agents to the site of the tumor, so as to achieve a desired regimen
in support of the elimination of a tumor burden. In one embodiment, an
electronic system provides tailored and controlled regulation of the
administration of such agents, using sensors to monitor the progress of
the treatment. Desired dosing and scheduling of anti-tumor agents in a
local setting is provided. In one embodiment, active control and
regulation of the administration of medicating agents is attached to a
synthetic pouch and with the aid of a piezoelectric valve and pump
actuating mechanism. The apparatus provides the desired dose, duration
and timing of dose delivery.