Abstract

Electric field delivery and ablation of target tissue regions, including cancerous cells and solid tumors. Methods and systems include delivering an electric field to a target tissue, and may include positioning a first electrode or plurality to at least partially define a first treatment volume in the target tissue; positioning a second electrode or plurality to at least partially define a second treatment volume, the first volume is disposed in the second volume; and establishing a first current flow extending through the first volume and a second current flow extending through the second volume.

IPC Classes  ?

• A61B 18/14 - Probes or electrodes therefor

Abstract

The present invention provides devices and systems, as well as methods, of electric field delivery and non-thermal or mild hyperthermia, and preferential or selective ablation of cancerous cells of target tissue regions. A method can include, for example, advancing a probe comprising a plurality of electrodes to a target tissue region comprising cancerous cells, and deploying the plurality of electrodes from a distal portion of a probe, and applying an alternating current so as to provide one or more electric fields extending through the volume and selectively or preferentially destroy cancerous cells within the volume.

IPC Classes  ?

• A61B 18/00 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body

Abstract

Transurethral systems and methods for delivering electrical energy and controlled, mild heating to a prostate tissue of a patient for destruction of cancerous and/or hyperplastic tissue. A method includes positioning an elongate urethral probe having an expandable member with electrode elements at a target location in the patient's urethra, and inflating or expanding at the target location. Secondary electrodes are positioned within or adjacent to the prostate tissue and spaced from the electrode elements of the expandable member, and an alternating electrical current flow is established between the electrode elements of the expandable member and the one or more secondary electrodes. Current delivery can be selected so as to destroy or ablate cancerous cells of the prostate tissue.

IPC Classes  ?

• A63H 18/00 - Highways or trackways for toysPropulsion by special interaction between vehicle and track

Abstract

Methods and systems for delivering electrical energy and controlled, mild hyperthermia to a prostate tissue of a patient for destruction of cancerous and/or hyperplastic tissue. A method includes positioning a plurality of electrodes in a target tissue region comprising the prostate tissue, and establishing an alternating electrical current flow through a volume of the prostate tissue to induce mild heating and destruction of cancerous cells in the volume.

IPC Classes  ?

• A61B 18/04 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
• A61N 1/00 - ElectrotherapyCircuits therefor

Abstract

Methods and systems for delivering electrical energy and controlled, mild hyperthermia to a prostate tissue of a patient for destruction of cancerous and/or hyperplastic tissue. A method includes positioning a plurality of electrodes in a target tissue region comprising the prostate tissue, and establishing an alternating electrical current flow through a volume of the prostate tissue to induce mild heating and destruction of cancerous cells in the volume.

IPC Classes  ?

• A61N 1/00 - ElectrotherapyCircuits therefor
• A61B 18/04 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating

Abstract

The present invention provides devices and systems, as well as methods, of electric field delivery and ablation (e.g., non-thermal ablation) of target tissues, including cancerous cells and solid tumors. A method of the present invention can include applying an alternating current to a target tissue and removing ablated or liquefied tissue from the target tissue region.

IPC Classes  ?

• A61B 18/18 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves

Abstract

The present invention provides systems, devices and related methods for applying electric fields for cancerous cell destruction and tissue ablation. A method can include advancing an ablation probe into a patient; deploying a guide from the delivery member along a guide tissue penetration path, deploying an electrode from the guide along an electrode tissue penetration path, and establishing current flow within the target tissue.

IPC Classes  ?

• A61B 18/14 - Probes or electrodes therefor

Abstract

The present invention provides devices and systems, as well as methods, of electric field delivery and non-thermal or selective ablation of target tissue regions, including selective ablation of cancerous cells and solid tumors. A method of the present invention includes delivering an electric field to a tissue, including positioning an electrode within a target tissue region comprising cancerous cells, and applying an alternating electrical current to the target tissue so as to non-thermally ablate cancerous cells of the target tissue region around the electrodes.

IPC Classes  ?

• A61B 18/18 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves