Abstract:
The invention is a tissue ablation system including an ablation device having an electrode array configured for the ablation of tissue, wherein the electrode array includes a plurality of conductive wires electrically isolated and independent from one another and configured to receive electrical current from a source and emit radiofrequency (RF) energy in response. The ablation system further includes a controller configured to control an emission pattern from the electrode array, either by independently controlling activation of one or more conductive wires or by actively blocking emission of energy from a selected one or more conductive wires or by adjusting flow of a conductive fluid for carrying RF energy emitted in a virtual electrode arrangement. Accordingly, the system provides a user with custom ablation shaping including custom, user-defined ablation geometries or profiles for RF emission in a desired shape or pattern so as to deliver targeted treatment to marginal tissue.
Abstract:
An electrosurgical generator for supplying radio frequency (RF) power to an electrosurgical instrument that has been introduced to the surgical site for cutting or vaporizing tissue immersed in a saline medium is disclosed.
Abstract:
A treatment device and method for delivering electrical pulses capable of creating irreversible electroporation. The system may include a bipolar probe with open or closed perfusion with the purpose of controlling the electrical conductivity rise to eliminate electrical arcing, without significantly altering the electric field distribution and treatment zone. This invention may include perfusion together with the delivery of specific or customized pulse parameters to achieve clinically acceptable ablation sizes using a bipolar probe with while reducing the overall risk of arcing or system failure.
Abstract:
Medical apparatus comprising at least one electrode (100) for generating cold plasma, said electrode (100) comprising a tail (120) and a head (110) and being covered with isolating and biocompatible mineral material, said tail (120) being the electrode portion to be connected with the corresponding handpiece (18) and said head (110) being the electrode portion (100) to be faced towards the skin of the patient, said apparatus comprising at least one electrode (100) comprising a head (110) including a spherical end (130) and/or at least one electrode (100) comprising a head (110) shaped to form a corkscrew -like element (140).
Abstract:
Devices, systems, and methods for the selective positioning of an intravascular ultrasound neuromodulation device are disclosed herein. One aspect of the present technology is directed to positioning systems for focused ultrasound devices. Some embodiments, for example, are directed to dual-balloon positioning systems. Such systems can include, for example, an elongated shaft and a therapeutic assembly and a balloon assembly carried by a distal portion of the elongated shaft. The therapeutic assembly is configured for delivery within a blood vessel. The balloon assembly can include a first balloon and a second balloon circumferentially offset from the first balloon about the elongated shaft. The first and second balloons can be selectively inflated to position an ultrasound transducer of the therapeutic assembly at a precise location within the blood vessel.
Abstract:
The present embodiments enable the length and/or diameter of the heating segment (15) of a medical treatment device (10) to be adjusted on the fly during a treatment procedure, without a need to interrupt the procedure, thus allowing a single catheter (12) to be used at different locations in a hollow anatomical structure.
Abstract:
Systems, methods and computer-accessible mediums can be provided that can establish particular parameters for electric pulses based on a characteristic(s) of the tissue(s), and control an application of the electric pulses to tissue(s) for a plurality of automatically controlled and separated time periods to ablate the tissue(s) through mediation of membrane potential and through inducing the cells through a plurality of charge - discharge cycles such that an electroporation of a majority of the tissue(s) is prevented or reduced.