Megadyne Medical Products, Inc.

Zevek, Inc.

Zevex, Inc.

Organ Recovery Systems, Inc.

Roger Millis

Darcy W Greep

Chad S Frampton

Frederick E Shelton, IV

Jason L Harris

David C Yates

Paul R Borgmeier

Shawn K Horner

John Paul Foley

Mark Stringham

David H Blaine

Michael D Ehninger

Melissa K Fischer

Benjamin J Danziger

Mark D Glassett

Steven D Andrews

John Brassil

Douglas A Schein

David Blaine

Ryan D Lewis

Doug Schein

John Foley

A smoke evacuation device that evacuates smoke from a surgical site and filters the smoke from the air. The smoke evacuation device can include a fluid trap for removing moisture from the smoke. The smoke evacuation device can also include a filter with a compression mechanism for compressing a filter medium. The smoke evacuation device can also include features for controlling flow parameters, noise, and vibrations of the device. A remote activation device can also be used to activate the smoke evacuation device upon detection of certain system parameters.

Smoke evacuation device

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 system for noise and vibration management of a smoke evacuation system includes a pump that compresses air and produces a pressure differential within an airflow path. The pump may be a sealed, positive displacement pump. The system includes vibration absorption mechanisms disposed between inner and outer housings, as well as on the outside surface of the outer housing. Methods of controlling and regulating a motor of the system to preserve the lifespan of the motor and maintain consistent airflow rates throughout the smoke evacuation system include varying a supply of electrical current to the motor so that it can operate at variable performance levels. Orifices are opened and closed in order to relieve resistance pressures within the airflow path due to clogging and blockages.

Noise and vibration management for smoke evacuation system

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

Air bubbles may be characterized by an air bubble detector by choosing an optimum set of frequencies and then comparing a return signal from a sensor receiving those frequencies against an internal reference. The number of pulses that exceed the internal reference represents a width and may be counted. The width, as counted, may be correlated to bubble characteristics including volume.

Air bubble detector

A method for controlling a pump for delivery of liquid to an organ over a series of fixed-length time intervals f, each interval f comprising a time tand a time twherein t+tequals the length of interval f. The method comprises allowing output pressure of the pump to decrease over time t, increasing output pressure of the pump over time t, comparing achieved pump output pressure to a predetermined pressure at about the end of interval f, and at least one of (i) adjusting tand tif necessary so the predetermined pressure is approximated by the output pressure at the end of the next interval f, and (ii) adjusting a rate of change of the output pressure during at least one of tand tif necessary so the predetermined pressure is approximated by the output pressure at the end of the next interval f.

Method and apparatus for pressure control for maintaining viability of organs

Growing community of inventors

West Jordan, UT, United States of America

Roger Millis