An electrode device for use in delivery of electrical pulses to a desired tissue of a mammal. The electrode device comprises a handle portion comprising first second electrode connections, and first and second needle electrodes comprising a respective first and second attachment end. Each one of the first and second electrode connections is configured with an inner electrode position and an outer electrode position, wherein the inner and outer electrode positions are electrically conducting. Further, each one of the first and second attachment ends is configured with an insulating part configured to electrically insulate one out of the inner electrode position and the outer electrode position when located therein, and configured with an electrically conducting part configured to conduct current supplied to the other one out of the inner electrode position or the outer electrode position when located therein.

A method and device for electroporating adipocytes in the adipose layer of tissue, where the device includes a frame, a first electrode coupled to the frame having a first contact surface, a second electrode coupled to the frame having a second contact surface, and where the first contact surf ace and the second contact surface define a treatment zone therebetween. The method including positioning a fold of tissue between the first and second electrodes such that the treatment zone formed between the two electrodes includes an adipose layer of tissue and no skeletal muscle.

The invention is within the general field of electroporation. In particular, the invention is within the general field of endoscopic electroporation and relates to a bipolar electrode suitable for endoscopic use, i.e. an electrode assembly that can be inserted in a resectoscope and deployed so as to treat e.g. internal organs tumors, such as bladder, rectum or esophagus.

High-frequency irreversible electroporation (H-FIRE) is a tissue ablation modality employing bursts of electrical pulses in a positive phase-interphase delay-negative phase-interpulse delay pattern. Despite accumulating evidence suggesting the significance of these delays, their effects on therapeutic outcomes from clinically-relevant H-FIRE waveforms have not been studied extensively. The present invention provides methods of pulse delivery, including delays, that mitigate bubble formation and/or minimize the risk of arcing, such as due to the presence of bubbles, and/or minimize muscle stimulation are described herein.

A method and device for electroporating adipocytes in the adipose layer of tissue, where the device includes a frame, a first electrode coupled to the frame having a first contact surface, a second electrode coupled to the frame having a second contact surface, and where the first contact surface and the second contact surface define a treatment zone therebetween. The method including positioning a fold of tissue between the first and second electrodes such that the treatment zone formed between the two electrodes includes an adipose layer of tissue and no skeletal muscle.

An implantable device for controllably stimulating a neural target. The device configured to electrically couple to a paddle electrode assembly, the paddle electrode assembly comprising a plurality of electrodes including a first group of one or more electrodes arranged on a ventral surface of a paddle body, and a second group of one or more electrodes arranged on a dorsal surface of the paddle body. The implantable device comprises stimulation circuitry, configured to provide stimulation energy to one or more electrodes of the paddle electrode assembly, measurement circuitry, configured to measure a response evoked from the neural target by the stimulation energy and sensed by one or more electrodes of the paddle electrode assembly, and an electrode selection module. The electrode selection module is configured to select at least one first electrode from the plurality of electrodes of the paddle electrode assembly and electrically couple the first electrode to the stimulation circuitry, and select at least one second electrode from the plurality of electrodes of the paddle electrode assembly and electrically couple the second electrode to the measurement circuitry.

A locator assembly (100) for determining a location of an arrhythmogenic foci (632) in or near a heart (101). The locator assembly (100) includes a device body (112) and a plurality of electrodes (102). The plurality of electrodes (102) receive electrical signals from the heart (101) to determine the location of the arrhythmogenic foci (632). The plurality of electrodes (102) can be coupled to the device body (112). At least two of the plurality of electrodes (102) can positioned circumferentially about the device body (112). The plurality of electrodes (102) can be positionable so that the plurality of electrodes (102) are in electrical communication with the heart (101).

A method for determining a location of an arrhythmogenic foci (632) in or near a heart (101) includes the steps of positioning a locator assembly (100) within the heart (101), the locator assembly (100) including a plurality of electrodes (102) that receive electrical signals from the heart (101), generating a first signal array (733) from the electrical signals received by the plurality of electrodes (102) to determine an actual location of the arrhythmogenic foci (632), artificially stimulating the heart (101) based on the actual location determined by the first signal array (733) to generate a second signal array (733), and confirming the actual location of the arrhythmogenic foci (632) by comparing the first signal array (733) with the second signal array (735). In some embodiments, the locator assembly (100) includes a plurality of bipolar electrodes (102).

An adapter includes a first connector, a second connector, and a circuit that reverses a polarity of a signal received at the first connector. Moreover, a lead includes a connector including a cathode terminal and an anode terminal, an electrode including a tip and a ring, and a circuit that connects the anode terminal of the connector to the tip of the electrode and that connects the cathode terminal of the connector to the ring of the electrode.

This document describes methods and materials for improving treatment of hypertension. For example, this document describes methods and devices for electroporation of nerves in the renal area to treat hypertension.