Surgery is performed on a patient with a novel device by:excising tissue from tissue mass within a patient to create a cavity within the tissue massinserting a novel device of this invention into the cavityshaping a flexible expandable component of the device to adjust dimensions on the flexible expandable componentproviding a liquid into the component through the liquid input port andcontrolling pressure or flow rate of the liquid in the component to move the liquid through the multiple openings and into the cavity.The device has a liquid inlet port, an exterior surface having length, width and depth, and multiple openings in the surface distributed throughout the length, width and depth to act as liquid delivery portsthe exterior surface of the liquid delivery device being shapeable by internal pneumatic pressure or hydraulic pressure to better fit inside dimensions of a surgical cavity the multiple openings deliver the liquid through the multiple openings.