Patents Assigned to Megadyne Medical Products, Inc.
  • Patent number: 10478533
    Abstract: 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.
    Type: Grant
    Filed: June 24, 2017
    Date of Patent: November 19, 2019
    Assignee: Megadyne Medical Products, Inc.
    Inventors: Paul R. Borgmeier, Darcy W. Greep, Shawn K. Horner, Chad S. Frampton
  • Patent number: 10478250
    Abstract: 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.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: November 19, 2019
    Assignee: Megadyne Medical Products, Inc.
    Inventors: Michael D. Ehninger, Paul R. Borgmeier, Darcy W. Greep
  • Patent number: 10433899
    Abstract: 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?, 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 in2 per cutting edge; the thickness of the side edge is less than or equal to 0.01?, forming only one cutting edge, and the cross-sectional area-to-number of cutting edges ratio is less than or equal to 0.000150 in2 per cutting edge; or the thickness of a first side edge is greater than 0.01? and the thickness of a second side edge is less than or equal to 0.01?, and the cross-sectional area-to-number of cutting edges ratio is less than or equal to 0.001 per cutting edge.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: October 8, 2019
    Assignee: Megadyne Medical Products, Inc.
    Inventors: Paul R. Borgmeier, Brian J. Walter, Darcy W. Greep
  • Patent number: 10433898
    Abstract: 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?, forming only one cutting edge, and the cross-sectional area-to-number of cutting edges ratio is less than or equal to 0.000150 in2 per cutting edge; or the thickness of a first side edge is greater than 0.01? and the thickness of a second side edge is less than or equal to 0.01?, and the cross-sectional area-to-number of cutting edges ratio is less than or equal to 0.001 in2 per cutting edge.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: October 8, 2019
    Assignee: Megadyne Medical Products, Inc.
    Inventors: Paul R. Borgmeier, Brian J. Walter, Darcy W. Greep
  • Patent number: 10085791
    Abstract: 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.
    Type: Grant
    Filed: December 26, 2014
    Date of Patent: October 2, 2018
    Assignee: Megadyne Medical Products, Inc.
    Inventors: Michael D. Ehninger, Paul R. Borgmeier, Darcy W. Greep, Roger Millis, Melissa K. Fischer
  • Patent number: 9867650
    Abstract: 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.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: January 16, 2018
    Assignee: Megadyne Medical Products, Inc.
    Inventors: Michael D. Ehninger, Paul R. Borgmeier, Melissa K. Fischer
  • Patent number: 9463060
    Abstract: Embodiments are directed to various monopolar and bipolar electrosurgical scissor instruments. An electrosurgical scissor instrument includes at least one scissor blade that has an electrically conductive tapered edge, where the tapered edge is insufficiently sharp to shear or otherwise mechanically cut tissue. The scissors also include another scissor blade movably mounted to the first scissor blade. The second scissor blade includes a flat contact surface that is aligned with the tapered edge of the first scissor blade. The scissors further include a scissor body that transfers electrical energy from an energy source to at least one of the scissor blades to electrically cut interlaying tissue located between the blades. In a monopolar embodiment, only one blade is conductive; whereas, in a bipolar embodiment, both blades are conductive.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: October 11, 2016
    Assignee: Megadyne Medical Products, Inc.
    Inventor: Darcy W. Greep
  • Patent number: 9375253
    Abstract: 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.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: June 28, 2016
    Assignee: Megadyne Medical Products, Inc.
    Inventors: Darcy W. Greep, Paul R. Borgmeier, Chad S. Frampton
  • Patent number: 9259260
    Abstract: A fluid evacuation device is attachable to a hand-held instrument to provide the hand-held instrument with fluid evacuation capabilities. The fluid evacuation device includes a nozzle, a hose mount, and an evacuation hose. The nozzle has a receptacle that receives a portion of a hand-held instrument therein. The distal end of the nozzle has an opening therein through which fluid may be drawn into the nozzle. The fluid can pass through a flow region in the nozzle. The hose mount extends from the nozzle and connects the hose to the nozzle. The hose mount includes a passageway through which the fluid can pass from the flow region into the evacuation hose.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: February 16, 2016
    Assignee: Megadyne Medical Products, Inc.
    Inventors: Darcy W. Greep, Chad S. Frampton
  • Patent number: 9168092
    Abstract: An electrode tip for use in performing electrosurgical operative procedures is disclosed. The electrode tip includes a main body that can receive electrical energy from an electrosurgical generator. The main body includes a working surface that communicates the electrical energy to patient tissue during the operative procedure. An insulative sheath is disposed around a portion of the electrode tip to prevent electrical energy from being communicated from the covered portions of the electrode tip to patient tissue. The insulative sheath has a leading edge that is shaped to minimize resistance to the movement of the electrode tip through patient tissue. The leading edge can be arcuately shaped or angled relative to a longitudinal axis of the electrode tip to provide the resistance reducing characteristics.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: October 27, 2015
    Assignee: Megadyne Medical Products, Inc.
    Inventors: Shawn K. Horner, Ryan D. Lewis
  • Patent number: 9084606
    Abstract: Embodiments are directed to various monopolar and bipolar electrosurgical scissor instruments. A monopolar electrosurgical scissor instrument includes one scissor blade that has an electrically conductive tapered edge, where the tapered edge is insufficiently sharp to shear or otherwise mechanically cut tissue. The scissors also include another electrically insulated scissor blade movably mounted to the first scissor blade. The second scissor blade includes a flat contact surface that is aligned with the tapered edge of the first scissor blade. The scissors further include a scissor body that includes a conductor that transfers electrical energy from an energy source to the tapered edge of the first electrically conductive scissor blade to electrically cut interlaying tissue located between the first electrically conductive scissor blade and the second electrically insulated scissor blade.
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: July 21, 2015
    Assignee: Megadyne Medical Products, Inc.
    Inventor: Darcy W. Greep
  • Publication number: 20150182278
    Abstract: 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.
    Type: Application
    Filed: December 26, 2013
    Publication date: July 2, 2015
    Applicant: Megadyne Medical Products, Inc.
    Inventors: Michael D. Ehninger, Paul R. Borgmeier, Melissa K. Fischer
  • Patent number: 8932280
    Abstract: 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.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: January 13, 2015
    Assignee: Megadyne Medical Products, Inc.
    Inventors: James D. Isaacson, Paul R. Borgmeier, Tremayne Paul Mikalauski
  • Patent number: 8882768
    Abstract: 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.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: November 11, 2014
    Assignee: Megadyne Medical Products, Inc.
    Inventors: Darcy W. Greep, Paul R. Borgmeier, Chad S. Frampton
  • Patent number: 8882767
    Abstract: 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.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: November 11, 2014
    Assignee: Megadyne Medical Products, Inc.
    Inventors: Darcy W. Greep, Paul R. Borgmeier, Chad S. Frampton
  • Patent number: 8876812
    Abstract: A self-limiting electrosurgical electrode for use with electrosurgery and various other surgical procedures is disclosed. The electrode includes a heating element for generating heat to warm a patient resting upon the electrode. The electrode can also include one or more pads to prevent the creation of pressure sores or decubitus ulcers on a patient resting upon the electrode. The electrode has an effective bulk impedance equal to or greater than about 4,000 ?·cm, which arises from resistive components, capacitive components, inductive components, or combinations thereof. Through the selection of the impedance characteristics for the electrode materials, and through tailoring of electrode geometries, the electrode of the present invention is self-regulating and self-limiting as to current density and temperature rise so as to prevent patient trauma.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: November 4, 2014
    Assignee: Megadyne Medical Products, Inc.
    Inventor: Thomas F. Aramayo
  • Publication number: 20140276763
    Abstract: 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.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: Megadyne Medical Products, Inc.
    Inventors: Darcy W. Greep, Paul R. Borgmeier, Chad S. Frampton
  • Publication number: 20140276469
    Abstract: A fluid evacuation device is attachable to a hand-held instrument to provide the hand-held instrument with fluid evacuation capabilities. The fluid evacuation device includes a nozzle, a hose mount, and an evacuation hose. The nozzle has a receptacle that receives a portion of a hand-held instrument therein. The distal end of the nozzle has an opening therein through which fluid may be drawn into the nozzle. The fluid can pass through a flow region in the nozzle. The hose mount extends from the nozzle and connects the hose to the nozzle. The hose mount includes a passageway through which the fluid can pass from the flow region into the evacuation hose.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: Megadyne Medical Products, Inc.
    Inventors: Darcy W. Greep, Chad S. Frampton
  • Patent number: D709196
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: July 15, 2014
    Assignee: Megadyne Medical Products, Inc.
    Inventors: Darcy W. Greep, Chad S. Frampton, Paul R. Borgmeier, Mark Glassett
  • Patent number: D709205
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: July 15, 2014
    Assignee: Megadyne Medical Products, Inc.
    Inventors: Michael D. Ehninger, Melissa K. Fischer