Abstract: The present disclosure relates to an electrosurgical apparatus to generate a dual plasma stream to perform electrosurgery on a surgical site on a patient. The apparatus and method of the present disclosure generates a hot gas jet to a surgical site by generating two plasma beams that are electrically up to 180 degrees out of phase from each other. Since each beam uses the other beam to establish plasma currents at a load, the combined dual plasma stream can be used on non-conductive surfaces, e.g., a tissue at the surgical site. Furthermore, by applying different flow rates to the plasma beams, various scanning effects by the hot gas jet can be achieved.

Abstract: The present disclosure relates to an electrosurgical apparatus to generate a dual plasma stream to perform electrosurgery on a surgical site on a patient. The apparatus and method of the present disclosure generates a hot gas jet to a surgical site by generating two plasma beams that are electrically up to 180 degrees out of phase from each other. Since each beam uses the other beam to establish plasma currents at a load, the combined dual plasma stream can be used on non-conductive surfaces, e.g., a tissue at the surgical site. Furthermore, by applying different flow rates to the plasma beams, various scanning effects by the hot gas jet can be achieved.

Abstract: Systems and methods for discriminating between various gases, e.g., argon and helium, for enhanced safety of medical devices are provided. The present disclosure may take the form of a dedicated-use embodiment where a specific gas, helium for example, is expected, and an enabling or “Go” signal is issued when that gas is detected, or an inhibitory or “No-Go” signal when a gas is present that is not identified as helium. Alternately, a control line or input command can be used to select between helium and argon as the expected gas and then issue the appropriate “Go/No-Go” signal, depending on which gas is identified.

Abstract: A multi-mode electrosurgical apparatus for use in cold plasma applications, electrosurgical cutting, electrosurgical coagulation and mechanical cutting is provided. The electrosurgical apparatus includes a housing having a passage extending therethough, an electrically conducting tube being disposed in the passage of the housing; an insulating outer tube disposed around the electrically conducting tube coupled to the housing, the electrically conducting tube being movable along a longitudal axis of the housing and outer tube; an electrically conducting blade coupled to the distal end of the electrically conducting tube, and a transformer assembly disposed on a proximal end of the housing, the transformer assembly including a first transformer and a first switch for selectively coupling the first transformer and an external second transformer to the electrically conducting tube for providing electrosurgical energy thereto.

Abstract: An apparatus for use with an endoscopic applicator. The apparatus including a support member configured to be removably coupled to a shaft of the applicator; a first sensor disposed on the distal end of the support member and for outputting a first signal indicative of current measured at the distal end of an active electrode supported in the shaft; and a second sensor disposed on the proximal end of the support member and for outputting a second signal indicative of current measured at the proximal end of the active electrode, wherein a difference value of the first and second signal is indicative of leakage of current within the shaft. In one embodiment, the first and second sensors are magnetic sensors for contactlessly sensing parameters of the active electrode.

Abstract: The present disclosure relates to an electrosurgical apparatus to generate a dual plasma stream to perform electrosurgery on a surgical site on a patient. The apparatus and method of the present disclosure generates a hot gas jet to a surgical site by generating two plasma beams that are electrically up to 180 degrees out of phase from each other. Since each beam uses the other beam to establish plasma currents at a load, the combined dual plasma stream can be used on non-conductive surfaces, e.g., a tissue at the surgical site. Furthermore, by applying different flow rates to the plasma beams, various scanning effects by the hot gas jet can be achieved.

Abstract: An electrosurgical system to generate a pulsed plasma stream and method thereof are provided. The system includes an electrosurgical generator coupled to an electrical power source to supply power for the electrosurgical system; a plasma generator including a noble gas conduit and an electrode disposed with the noble gas conduit, the electrode operatively coupled to the electrosurgical generator to selectively receive electrical energy therefrom such that the electrode at least partially ionizes a carrier gas feed to the noble gas conduit to create a plasma discharge; and a flow controller coupled to the noble gas conduit to pulse the flow of the carrier gas from a gas source to the noble gas conduit such that when the electrode is energized pulses of plasma discharge are generated at the surgical site.

Abstract: A novel suture removal instrument, kit and technique are described herein. The invention utilizes a newly designed thermal filament to allow the tip of the suture removal instrument to be slipped under the stitch in order to heat and cut the stitch. Current suture removal techniques utilize scissors, forceps, and/or scalpels. These techniques, which are well known in the art, are problematic because they exert tension on the stitch and are associated with patient discomfort. Small stitches add to the difficulty of suture removal because they have less suture laxity for scissor insertion. The present invention therefore allows for more rapid suture removal with less patient discomfort and at a competitive or lower cost.