Megadyne Medical Products, Inc.

Chi Lin Technology Co., Ltd.

Paul R Borgmeier

Darcy W Greep

James D Isaacson

Chad S Frampton

Michael D Ehninger

Richard P Fleenor

Roger Millis

David B Kieda

Melissa K Fischer

William A Miller

Shawn K Horner

Brian J Walter

Tremayne Paul Mikalauski

Mark D Glassett

Ryan D Lewis

Treymayne Paul Mikalauski

Michael J Criddle

A self-limiting electrosurgical return electrode for use with electrosurgical procedures is disclosed. The return electrode includes a conductive element and pads disposed on opposing sides of the conductive element. The conductive element, optionally in combination with the pads, is configured to limit the density of electrical current that passes from a patient to the return electrode. The conductive element and the pads can cooperate to define two separate working surfaces on opposing sides of the return electrode. The return electrode can also be safely used with patients of substantially any size and without requiring adjustments to the power settings of an electrosurgical generator.

Universal self-limiting electrosurgical return electrode

A portable, battery powered electrosurgical wave generator is usable in performing electrically driven medical procedures. The wave generator can be small and lightweight to enable a user to carry and use the wave generator in non-operating room type settings. The wave generator can include a control unit that generates output signals in each of a cutting mode, coagulation mode, and a bipolar mode. The control unit can use a single circuit structure to generate the output signals for the cutting, coagulation, and bipolar modes. The output signals can be generated solely from a voltage produced by an incorporated battery within the generator.

Electrosurgical wave generator

Embodiments of the present invention relate to the field of pressurized fluid delivery devices for use in medical procedures. In particular, a fluid delivery pump comprises at least one compressive member configured to apply a force to a fluid reservoir. The at least one compressive member is associated with a flexible envelope, such that the flexible envelope may move the compressive member. The flexible envelope may be substantially air-tight so that it may be pressurized. When a negative pressure is created inside the flexible envelope, the flexible envelope may change volume, applying a force to the at least one compressive member. The at least one compressive member may then apply a force to the fluid reservoir and the fluid is forced out of the reservoir.

Vacuum assisted irrigation pump

Cable connection systems allow for an electrosurgical return electrode to be simultaneously connected to multiple ESUs. The cable connection systems can include individual return cables for simultaneous connection to each of the ESUs. The cable connection system can also include a junction that joins, connects, or associates the return cables in a manner that allows for the multiple ESU cables to be electrically connected to the return electrode at a single connection point on the return electrode.

Cable connection systems for electrosurgical systems

Extension attachments selectively couple to any of a variety of hand held instruments. The extension attachments may include smoke evacuation shafts and electrosurgical electrodes. The extension attachments may extend the functional capabilities of the hand held instruments, such as electrosurgical and smoke capture capabilities.

Electrosurgical instrument extension attachment

An electrosurgical return electrode configured for operable association with a transponder detection unit. The return electrode includes a conductive element having an aperture array configured to allow passage of a magnetic, electric, or electromagnetic interrogation signal from the transponder detection unit through the conductive element and through the return electrode. The return electrode is positionable over a transponder detection unit such that the return electrode may be placed upon the transponder detection unit and a patient may be positioned upon the return electrode. The return electrode enables the detection of a transponder located on, within, and/or near the patient without the need for repositioning the patient relative to the return electrode and without the need for positioning an ancillary transponder reader or transmitter above the patient.

Electrosurgical return electrode and RFID system

An electrosurgical electrode comprises an elongated body having a cross-sectional area and longitudinal side edges forming longitudinal cutting edges adapted for electrosurgical dissection along a plane. The body has a configuration, wherein: the thickness of the side edge is greater than 0.01&#x2033;, forming two or more cutting edges, and the cross-sectional area-to-number of cutting edges ratio is less than or equal to 0.0004 inper cutting edge; the thickness of the side edge is less than or equal to 0.01&#x2033;, forming only one cutting edge, and the cross-sectional area-to-number of cutting edges ratio is less than or equal to 0.000150 inper cutting edge; or the thickness of a first side edge is greater than 0.01&#x2033; and the thickness of a second side edge is less than or equal to 0.01&#x2033;, and the cross-sectional area-to-number of cutting edges ratio is less than or equal to 0.001 per cutting edge.

Precision blade electrosurgical instrument

An electrosurgical electrode comprises an elongated body having a cross-sectional area and longitudinal side edges forming longitudinal cutting edges adapted for electrosurgical dissection along a plane. The body has a configuration, wherein: the thickness of the side edge is less than or equal to 0.01&#x2033;, forming only one cutting edge, and the cross-sectional area-to-number of cutting edges ratio is less than or equal to 0.000150 inper cutting edge; or the thickness of a first side edge is greater than 0.01&#x2033; and the thickness of a second side edge is less than or equal to 0.01&#x2033;, and the cross-sectional area-to-number of cutting edges ratio is less than or equal to 0.001 inper cutting edge.

Tapered precision blade electrosurgical instrument

An electrosurgical instrument that reduces the amount of fatigue experienced by a physician performing electrosurgery includes a hand piece with a utility conduit connected to the hand piece. The utility conduit can include an electrical cable and a smoke/fluid evacuation hose. The location at which the utility conduit exits the hand piece is selectively adjustable to reduce the resistance to the movement of the electrosurgical instrument created by the weight of the utility conduit. An electrosurgical instrument may also include an extendable shaft that allows for selective adjustment of the reach of the operational capabilities of the instrument.

Electrosurgical instrument

Systems, methods, and instruments associated with controlling the operating modes of an electrosurgical instrument using control signals delivered in a wireless manner from the electrosurgical instrument to an electrosurgical generator. The electrosurgical instrument transmits wireless control signals to the electrosurgical generator to initiate delivery of electrosurgical energy. The control signals are delivered to the electrosurgical generator without the need for a conductive cord extending between the electrosurgical generator and the electrosurgical instrument. The energy is delivered to the electrosurgical instrument, in response to the wireless control signals, along a path through an electrode and the physician utilizing the electrosurgical instrument and/or a conductive path external to the physician. The electrode upon which the physician rests provides a path for the electrosurgical energy and optionally prevents burning of the physician during an electrosurgical procedure.

Methods, systems and devices for performing electrosurgical procedures

An electrosurgical instrument that reduces the amount of fatigue experienced by a physician performing electrosurgery includes a hand piece with a utility conduit connected to the hand piece at a central portion of the hand piece. The utility conduit can include an electrical cable and a smoke/fluid evacuation hose. The hand piece can include a channel system that receives a portion of the utility conduit therein and allows a physician to adjust the location on the hand piece at which the utility conduit exits the hand piece. Adjusting the location on the hand piece at which the utility conduit exits the hand piece can reduce the resistance to the movement of the electrosurgical instrument created by the weight of the utility conduit, which leads to less fatigue in a physician's hand during electrosurgery.

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Salt Lake City, UT, United States of America

Paul R Borgmeier