Abstract: A system for delivering a stent into a body lumen includes an inner tubular member configured to advance through an access site in a wall of a body lumen for delivering a stent into the body lumen and an electrode configured to create the access site in the wall of the body lumen. A tubular sleeve is disposed coaxially over the distal end portion of the inner tubular member and is configured to thermally insulate at least a portion of the inner tubular member.

Abstract: Methods, apparatuses, and systems are described for stent delivery and positioning for transluminal application. The method may include positioning the stent in an undeployed configuration through an access site in a wall of a first body lumen. In some cases, the method may include retracting an outer sheath proximally and past an anchoring component disposed at a distal portion of an inner tubular member based on positioning the stent. A distal portion of the stent may be disposed between the anchoring component and the outer sheath while the stent is in the undeployed configuration. The method may further include deploying the distal portion of the stent from the outer sheath and within the first body lumen and expanding a proximal portion of the stent from within the outer sheath such that upon fully exiting the outer sheath, the proximal portion expands to a deployed configuration within a second body lumen.

Abstract: Methods, apparatuses, and systems are described for stent delivery and positioning for transluminal application. The system may include a stent that is disposed coaxially onto an inner tubular member. In some cases, the system may include an outer sheath disposed coaxially along at least a portion of the inner tubular member. The system may include a distal cutting element coupled with a distal end of the inner tubular member and an anchoring component disposed at a distal portion of the inner tubular member. The anchoring component may be configured to retain a distal portion of the stent in place along the inner tubular member as the outer sheath is retracted proximally to deploy the stent, wherein upon retraction of the outer sheath, the stent releases from the anchoring component and expands into a deployed configuration within the body lumen.

Abstract: A tissue ablation system including numerous components and methods is described herein for encircling target tissue and generating tissue ablation volumes in various biological tissues. The biological tissue includes tissue of a variety of organs of the human body including the liver, spleen, kidney, lung, breast and other organs, but is not so limited. The tissue ablation device comprises an energy source and at least one trocar coupled to the energy source, the trocar having a body, a proximal end, and a distal end. The trocar carries an electrode array that comprises a plurality of electrodes, each electrode of the plurality of electrodes is configured to extend from the trocar when moved from a retracted state to a deployed state, and to have at least one radius of curvature in the deployed state so that the electrode array forms a series of shaped electrodes in the deployed state.

Abstract: A tissue ablation system including numerous components and methods is described herein for encircling target tissue and generating tissue ablation volumes in various biological tissues. The biological tissue includes tissue of a variety of organs of the human body including the liver, spleen, kidney, lung, breast and other organs, but is not so limited. The tissue ablation device comprises an energy source and at least one trocar coupled to the energy source, the trocar having a body, a proximal end, and a distal end. The trocar carries an electrode array that comprises a plurality of electrodes, each electrode of the plurality of electrodes is configured to extend from the trocar when moved from a retracted state to a deployed state, and to have at least one radius of curvature in the deployed state so that the electrode array forms a series of shaped electrodes in the deployed state.

Abstract: A tissue ablation device and method for tissue ablation are described. The tissue ablation device comprises an energy source and an introducer coupled to the energy source, the introducer having a body, a proximal end, and a distal end. The introducer carries an electrode array that comprises a plurality of electrodes, each electrode of the plurality of electrodes is configured to extend from the body of the introducer when moved from a retracted state to a deployed state. The electrode array is designed to encircle a portion of a target tissue when the electrodes are extended into the deployed state and to form a relatively spherical shaped ablation pattern in a tissue volume surrounding the target tissue when energized by the energy source.

Abstract: A tissue ablation system including numerous components and methods is described herein for encircling target tissue and generating tissue ablation volumes in various biological tissues. The biological tissue includes tissue of a variety of organs of the human body including the liver, spleen, kidney, lung, breast and other organs, but is not so limited. The tissue ablation device comprises an energy source and at least one trocar coupled to the energy source, the trocar having a body, a proximal end, and a distal end. The trocar carries an electrode array that comprises a plurality of electrodes, each electrode of the plurality of electrodes is configured to extend from the trocar when moved from a retracted state to a deployed state, and to have at least one radius of curvature in the deployed state so that the electrode array forms a series of shaped electrodes in the deployed state.