Patent ID: 7742811
Filing Date: 2010-06-22
Classification: A61K,A61N

Abstract:
1. A medical device for the treatment of abnormal tissue growth in a patient's body comprising: a power source; circuitry coupled to said power source; at least one electrode operably coupled to said circuitry wherein said circuitry delivers direct current electrical therapy involving multiple voltages to said at least one electrode continuously for a period of time not less than 1 minute for the treatment of abnormal tissue growths; a catheter operatively implanted into the patient's body and into contact with the abnormal tissue growth for delivering a therapeutic agent to the abnormal tissue growth, said catheter having a central lumen open at a proximal end and a distal end, the distal end positioned at or near the abnormal tissue growth and the proximal end positioned external to the body and away from the abnormal tissue growth; a porous drug absorbing material coupled to the distal end of the catheter, said porous material in contact with a surface portion of the abnormal tissue growth; and an electrode array comprising a plurality of electrodes coupled to the circuitry and configured to steer the therapeutic agent along a predetermined path from the catheter distal end, said array comprising a plurality of point electrodes configured on the porous material.