1
Michael S Klicek: Impedance and temperature generator control. Valleylab, Peter C Richardson, Lawrence C Akers, Aaron Passman, March 5, 1996: US05496312 (1013 worldwide citation)

A control responds to impedance and temperature between active and return electrodes of the electrosurgical generator during tissue desiccation. Tissue contacts separately and independently provide high frequency power to effect tissue electrosurgically. An instantaneous impedance monitor between ea ...


2
David G Wuchinich: Endoscopic electrosurgical apparatus. Valleylab, Pennie & Edmonds, August 2, 1994: US05334183 (757 worldwide citation)

This invention relates to a surgical apparatus having four general embodiments: (1) the use of an ultrasonic vibrator and a radio frequency generator to simultaneously cut and cauterize tissue, (2) the use of an ultrasonic vibrator to cut tissue coupled with the independent use of a radio frequency ...


3
Louis Delahuerga, Robert B Stoddard, Michael S Klicek: Enhanced electrosurgical apparatus. Valleylab, Peter C Richardson, Lawrence C Akers, Mark Dryer, June 8, 1993: US05217457 (644 worldwide citation)

A device for enhancing the safety and efficiency of a hand-operated electrosurgical pencil having an exposed electrode with a distal end defining a tip for cutting biological tissue, which device comprises a nose piece adapted to be mounted about said electrode and defining at least one pathway for ...


4
David Lee Gines: Electrosurgical generator with adaptive power control. Valleylab, March 7, 2000: US06033399 (633 worldwide citation)

An electrosurgical generator has an output power control system that causes the impedance of tissue to rise and fall in a cyclic pattern until the tissue is desiccated. The advantage of the power control system is that thermal spread and charring are reduced. In addition, the power control system of ...


5
David A Zieve, Michael S Klicek: Electrosurgical and ultrasonic surgical system. Valleylab, Peter C Richardson, Lawrence C Akers, Mark Dryer, March 2, 1993: US05190517 (586 worldwide citation)

An electrical circuit system which provides electrical energy to a surgical apparatus having ultrasonic fragmentation, aspiration and electrosurgical coagulation capabilities, which system also includes an impedance sensing network and automatic feedback power output control to reduce RF power outpu ...


6
Steven P Buysse, Jenifer S Kennedy, S Wade Lukianow, Thomas P Ryan: Energy delivery system for vessel sealing. Valleylab, October 27, 1998: US05827271 (560 worldwide citation)

Electrosurgical energy is used in combination with a surgical tool to seal vessels and vascular tissue of a patient. One of the important advances of the present system is that it can effectively seal vessels of a patient without leaving any foreign material in the body of the patient. The present s ...


7
Charles F Morrison Jr: Electrosurgical devices having sesquipolar electrode structures incorporated therein. Valleylab, Gerald J Ferguson Jr, Joseph J Baker, August 23, 1977: US04043342 (556 worldwide citation)

An electrosurgical device adapted for connection to an electrical generator having active and return output terminals, the device being used to cut, coagulate, or otherwise treat organic tissue or the like, the device comprising: an insulative support connectors; an active electrode responsive to th ...


8
Michael S Klicek: Electrosurgical bipolar treating apparatus. Valleylab, Peter C Richardson, Lawrence C Akers, Mark Dryer, January 25, 1994: US05281216 (554 worldwide citation)

An electrosurgical bipolar treating apparatus comprising a handpiece to which is connected a first active electrode and a second return electrode having exposed distal ends which define a bipolar tip for electrosurgically treating tissue at an operational site on a patient, which tip is structured s ...


9
Charles F Morrison Jr: Electrosurgical instrument. Valleylab, Gerald J Ferguson Jr, Joseph J Baker, February 21, 1978: US04074718 (535 worldwide citation)

An electrosurgical instrument comprising a support member; at least one electrode mounted on the support, the electrode consisting essentially of a material having a figure of merit of at least 0.15 at room temperature where the figure of merit is the product of the thermal conductivity, the heat ca ...


10
Steven P Buysse, Jenifer S Kennedy, Michael J Lands, Donald R Loeffler, S Wade Lukianow, Thomas P Ryan: Vascular tissue sealing pressure control. Valleylab, July 7, 1998: US05776130 (534 worldwide citation)

A clamping force mechanism for use with electrosurgery allow a user to seal and/or join patient's particular vascular tissue; the mechanism is elongate with user and patient ends. An actuator is at the user end and the effectors are at the patient end. Each effector has a face of an area to contact ...



Click the thumbnails below to visualize the patent trend.