Patent application number | Description | Published |
20090069802 | ELECTROSURGICAL ELECTRODE AND METHOD FOR USE - An electrosurgical electrode for use in a surgical procedure includes an elongated body in the shape of a Freer elevator having a working end portion in the shape of a spoon at a distal end thereof. The working end portion is an active electrosurgical end capable of supplying electrosurgical currents when the electrode is operatively connected to an electrosurgical apparatus and the later is activated. An opposite proximal end of the body includes a means, such as a connector, for operatively connecting the electrode to the electrosurgical apparatus for supplying the electrosurgical currents to the working end portion. | 03-12-2009 |
20140114135 | Tissue Retractor - A tissue retractor device for retracting tissue includes a base and a plurality of blades connected to and distributed around said base. Each of the blades is outwardly movable from the base and includes a respective sloped portion on an interior region of the blades. The tissue retractor includes a pusher engaged to the base. A portion of said pusher abuts the sloped portion of each of the blades. Movement of the pusher in a longitudinal direction engages a portion of the pusher against said sloped portion of each of the blades to move the blades and angularly displace the blades between a respective closed position and an open position. | 04-24-2014 |
20140114136 | Tissue Retractor - A tissue retractor device for retracting tissue is disclosed. The device includes a base connected to a plurality of blades distributed around the base. Each of the blades is outwardly movable from the base. A pusher is engaged to the base. The pusher is movable in a longitudinal direction to move the blades to angularly displace each of the blades from a respective closed position to an open position. At least one biasing device is engaged with the base that biases the respective ones of the blades toward a closed position. The closed position is where the blades are relatively close together with respect to the open position. | 04-24-2014 |
20140114140 | Tissue Retractor - A tissue retractor device suitable for spinal surgery. The device includes base apparatus to which three blades are circumferentially hinged, the blades closing upon each other in default position from spring bias. A pusher mechanism is threadably connected to the base which spreads the blades by rotating the pusher in its threads relative to the base, which converts rotational motion to translational motion to angular motion of the blades about their respective hinges. One blade is longer than the others to present a multipurpose tip to the user of the device, such a tip being useful in avoiding nerve roots or other anatomy obstructing the surgical path. A dilator is threadably connected to the pusher, the dilator having a long hollow tube connected to a hollow tip extending beyond the blades to slide over guide-wire and initially position the device at the operative site, prior to using the pusher to retract patient's tissue. | 04-24-2014 |
20140276757 | FIXED POSITION RF ELECTRODE - In one aspect, a fixed position RF electrode for conducting surgical procedures, includes a main device body detachably connectable to an RF generating system, a first polarized conductor and a second oppositely polarized conductor, a bipolar electrical conduit passing through the main device body that passes RF energy from the RF generating system to the first polarized conductor and the second oppositely polarized conductor, and a bipolar electrode for contacting a surgically operative material. | 09-18-2014 |
20140276770 | Electrosurgical Handpiece - One embodiment of the present invention is a electrosurgical tool which includes a electrically powered handpiece with a detachable electrode at one end and a power connection at the other. The handpiece includes a feedback controller incorporated in tool to adjust operational characteristics of the electrosurgical tool. | 09-18-2014 |
Patent application number | Description | Published |
20080287947 | RF intervertebral electrosurgical probe - An electrosurgical instrument for spinal procedures comprises an elongated tubular member configured to fit within and be extended down a standard sized cannula. The instrument comprises a proximal end including a handle for the surgeon and supplied with fittings for connection to a source of irrigation fluid and a source of suction. The distal end of the instrument has an active end comprising a slightly-flexible curved wire electrode that extends in the plane of the tubular member. Beyond the wire electrode is an exit port for irrigation fluid, and in front of the electrode is a receiving port for suction. The wire electrode is thus flanked in front by the exiting irrigation fluid and behind by the suction, with the result that fluid flow is drawn by the suction across the wire electrode creating pressure forces that direct removed tissue to the suction entrance and its removal from the surgical site. | 11-20-2008 |
20080294160 | RF endoscopic electrosurgical instrument - A unipolar electrosurgical electrode or probe that is configured for use in MIS electrosurgical procedures. The electrosurgical electrode comprises an elongated tubular member configured to cooperate with the small cannula of a mini-endoscope to reach interior tissue. The active end comprises a pair of jaws that can be normally closed and operative by the surgeon to open and close down on and grasp tissue to excise same. When energized, a unipolar discharge is generated at the working end of the electrode. | 11-27-2008 |
20090062786 | Tri-frequency electrosurgical instrument - An electrosurgical instrument that is capable of generating high-quality RF energy carriers at one of three different frequencies and combining any of the three carriers with any one of four electrosurgical mode waveform modulations and selectively supplying the modulated carriers to either a monopolar or a bipolar handpiece. In a preferred embodiment, the first carrier frequency is in the range of about 3.8-4.0 MHz, the second carrier frequency is in the range of about 1.7-2.0 MHz, and the third carrier frequency is in the range of about 400-600 KHz. | 03-05-2009 |
20100023006 | RF intervertebral disc surgical system - A spinal surgical system comprising a plurality of surgical components for cooperating with a electrosurgical handpiece comprising an elongated tubular member housing an electrode, with the tubular member configured to fit within and be extended down a standard sized cannula in a MIS procedure. The system components comprise one or more cannulas, straight or beveled; one or more guide wires, with and without pointed ends for piercing tissue; a tapered dilator; a trephine; and one or more depth control stops for mounting on the cannula for monitoring its depth. The system is especially useful for performing a discectomy. | 01-28-2010 |
20100042096 | MIS electrosurgical handpiece - An electrosurgical handpiece comprising a squeezable handle connected to extend and retract bipolar electrodes from a rigid tubular member. The bipolar electrodes comprise active separable distal ends and connecting links configured such that when the handle is unsqueezed, the active distal ends protrude from the distal end of the first tubular member and are adjacent one another, and when the handle is fully squeezed, the active distal ends are fully extended outwardly from the first tubular member and separate, and when the handle is relaxed but still partially squeezed, the active distal ends come together and touch first at their extreme ends and then touch over a broader area in a position to grasp tissue for receiving electrosurgical currents. | 02-18-2010 |
20110054462 | Electrosurgical instrument with multi-function handpiece - An electrosurgical instrument with which a single handpiece can be connected that can be used for cutting and for coagulation without touching the instrument after the front panel settings have been made. The handpiece, of the extendable electrode type, comprises essentially two cables one terminating in a male connector configured to mate to the bipolar output connector of the electrosurgical unit, and a second terminating in a male connector configured to mate with the monopolar output connector of the electrosurgical unit. The output connectors can be selectively activated. | 03-03-2011 |