NANOSECOND PULSED ELECTRIC FIELD PARAMETERS FOR DESTROYING TUMORS WITH A SINGLE TREATMENT

摘要

Nanosecond pulsed electric field (nsPEF) parameters for destroying tumors with a single treatment are described. A nsPEF generator may be used with an electrode assembly to apply the pulses to one or more tumors where the parameters for the nsPEF are optimized for treating such tumors. The system may also be used to treat tumors on or within internal organs by using an expandable bipolar electrode assembly that can be imaged by ultrasound and can penetrate, e.g., the stomach, intestine or bowel wall, etc. and be positioned in or around the tumor on an internal organ while being guided by an operator who visualizes its position with ultrasound imaging. It utilizes an electrode assembly that extends down an internal cavity in the endoscope to allow the operator to spread the electrodes for pulse delivery of a nanosecond pulsed electric field (nsPEF) to the tumor.