Abstract: An electrosurgical generator is presented for controlling a surgical instrument. The electrosurgical generator includes a controller programmed to generate a first carrier wave signal and a second carrier wave signal based on an algorithm employing real-time current values of tissue at a tissue site to determine tissue impedance at a distal end of the surgical instrument, the first carrier wave signal having a first oscillating waveform and the second carrier wave signal having a second oscillating waveform, a multistage variable gain amplifier for amplifying the first and second oscillating waveforms to generate a first output signal for a first mode of operation and a second output signal for a second mode of operation, and an electrosurgical connector for transmitting the first and second output signals. The controller concurrently runs the first and second oscillating waveforms while switching between the first mode of operation and the second mode of operation.

Abstract: A device for generating RF power for an electrosurgical instrument is provided that includes a controller programmed to generate an electrical signal having an oscillating waveform and to modulate the oscillating waveform between a plurality of ON and OFF states to create discrete packets of the oscillating waveform in the plurality of the ON states. The device further has an amplifier in communication with the electrical waveform that amplifies the waveform to create an output signal and an electrosurgical connector configured to receive an electrosurgical instrument and to pass the electrical signal to the electrosurgical instrument.

Abstract: A device for generating RF power for an electrosurgical instrument is provided that includes a controller programmed to generate an electrical signal having an oscillating waveform and to modulate the oscillating waveform between a plurality of ON and OFF states to create discrete packets of the oscillating waveform in the plurality of the ON states. The device further has an amplifier in communication with the electrical waveform that amplifies the waveform to create an output signal and an electrosurgical connector configured to receive an electrosurgical instrument and to pass the electrical signal to the electrosurgical instrument.

Abstract: An electrosurgical device that has a head having a face. A handle connectable to an RF generator. The device has a plurality of teeth extending from the face. At least one of the plurality of teeth as a first electrical charge. A second of the plurality of teeth has a second electrical charge.

Abstract: A device for generating RF power for an electrosurgical instrument including a controller programmed to generate an electrical signal having an oscillating waveform and to modulate said oscillating waveform between a plurality of ON and OFF states to create discrete packets of the waveform in the plurality of the ON states. The device further has an amplifier in communication with said electrical waveform that amplifies said waveform to create an output signal and an electrosurgical connector configured to receive an electrosurgical instrument and to pass said electrical signal to said electrosurgical instrument. The controller further modulates the discrete packets to form sub-discrete packets and a second level of sub-discrete packets. A feedback circuit in continuous communication with sensing circuits positioned in the electrosurgical instrument receives electrical power usage data from the operative field and determines adjustments to power supply based on power usage data.

Abstract: An electrosurgical device that has a head having a face. A handle connectable to an RF generator. The device has a plurality of teeth extending from the face. At least one of the plurality of teeth as a first electrical charge. A second of the plurality of teeth has a second electrical charge.

Abstract: An electrosurgical device can have a housing and an electrode defining an energizable surface at least partially positioned externally of the housing. Such a device can have a first circuit and a second circuit. The housing can define a handpiece. The first circuit can be configured to selectively direct energy to a power element. The power element can be configured to selectively electrically couple to the electrode. The second circuit can have a selectively operable handpiece accessory. The handpiece can also have a device configured to direct suitable energy from the first circuit to the second circuit to power the second circuit. In some embodiments, the second circuit can be configured to selectively interrupt the first circuit. For example, the second circuit can interrupt the first circuit when a cumulative duration of operation of the second circuit exceeds an upper threshold duration. Methods of operating such handpieces are also disclosed.

Abstract: A water resistant enclosure providing protection to electrical or electronic equipment contained therein includes a three-sided removable cover pivotally coupled to a wall mounting bracket that includes a back panel-base plate combination. The three-sided removable cover further includes an enclosure door that covers the front opening. The three-sided removable cover also includes features to provide for water resistance. These features include an overhang extension from the top side wall of the three-sided removable cover extending to partially cover the front opening and in particular to cover the seam created between the enclosure door and the removable cover, and a gutter surrounding the front opening to divert water therefrom. In addition, the three-sided removable cover and the wall mounting bracket include elements to provide for the proper alignment and orientation thereof when being mated together.