Patents by Inventor Darcy W. Greep

Darcy W. Greep has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • 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
  • Publication number: 20190201594
    Abstract: Surgical systems are disclosed. Surgical systems can include evacuation systems for evacuating smoke, fluid, and/or particulates from a surgical site. A surgical evacuation system can be intelligent and may include one or more sensors for detecting one or more properties of the surgical system, evacuation system, surgical procedure, surgical site, and/or patient tissue, for example.
    Type: Application
    Filed: December 4, 2018
    Publication date: July 4, 2019
    Inventors: Frederick E. Shelton, IV, David C. Yates, Jason L. Harris, Shawn K. Horner, Darcy W. Greep
  • Publication number: 20190201082
    Abstract: Surgical systems can include evacuation systems for evacuating smoke, fluid, and/or particulates from a surgical site. A surgical evacuation system can be intelligent and may include one or more sensors for detecting one or more properties of the surgical system, evacuation system, surgical procedure, surgical site, and/or patient tissue, for example.
    Type: Application
    Filed: June 29, 2018
    Publication date: July 4, 2019
    Inventors: Frederick E. Shelton, IV, David C. Yates, Darcy W. Greep, Jason L. Harris
  • Publication number: 20190160409
    Abstract: A fluid trap for minimizing the escape of contaminated fluids from the fluid trap when an orientation of the fluid trap changes during removal or transport includes a front cover, a rear cover coupled to the front cover, and an interior chamber defined by the front and rear covers. The front cover defines an inlet port extending a first distance into an interior chamber of the fluid trap. The rear cover defines an exhaust port extending a second distance away from the rear cover of the fluid trap and positioned above the inlet port when the fluid trap is in an upright position. The interior chamber has a maximum fluid volume defined as the lesser of a fluid reservoir volume, a front cover volume, and a rear cover volume.
    Type: Application
    Filed: November 29, 2017
    Publication date: May 30, 2019
    Inventors: Shawn K. Horner, Benjamin Danziger, Chad S. Frampton, Mark D. Glassett, Darcy W. Greep, Jason Harris, Frederick Shelton, David Yates
  • Publication number: 20190159830
    Abstract: 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.
    Type: Application
    Filed: November 29, 2017
    Publication date: May 30, 2019
    Inventors: Shawn K. Horner, Jason Harris, Frederick Shelton, Chad S. Frampton, Steven D. Andrews, Benjamin Danziger, Mark D. Glassett, Darcy W. Greep, Roger Millis, David Yates
  • Publication number: 20190162186
    Abstract: 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.
    Type: Application
    Filed: November 29, 2017
    Publication date: May 30, 2019
    Inventors: Chad S. Frampton, Shawn K. Horner, Darcy W. Greep, Frederick Shelton, Jason Harris, David Yates, Roger Millis
  • Publication number: 20190125432
    Abstract: A surgical instrument comprising a jaw assembly is disclosed. The surgical instrument further comprises a motor-driven drive system configured to manipulate the jaw assembly. The surgical instrument also comprises a control system configured to control the drive system and, also, control a power supply system configured to supply electrical power to electrodes defined in the jaw assembly. In use, the surgical instrument can be used to apply mechanical energy and electrical energy to the tissue of a patient at the same time, or at different times. In certain embodiments, the user controls when the mechanical and electrical energies are applied. In some embodiments, the control system controls when the mechanical and electrical energies are applied.
    Type: Application
    Filed: August 24, 2018
    Publication date: May 2, 2019
    Inventors: Frederick E. Shelton, IV, David C. Yates, Darcy W. Greep, Jason L. Harris
  • Publication number: 20190125431
    Abstract: A surgical instrument comprising a jaw assembly is disclosed. The surgical instrument further comprises a motor-driven drive system configured to open the jaw assembly. The surgical instrument also comprises a control system configured to control the drive system and, also, control a power supply system configured to supply electrical power to electrodes defined in the outer surface, or outer surfaces, of the jaw assembly. In use, the surgical instrument can be used to apply mechanical energy and electrical energy to the tissue of a patient at the same time, or at different times. In certain embodiments, the user controls when the mechanical and electrical energies are applied. In some embodiments, the control system controls when the mechanical and electrical energies are applied.
    Type: Application
    Filed: August 24, 2018
    Publication date: May 2, 2019
    Inventors: Frederick E. Shelton, IV, David C. Yates, Darcy W. Greep, Jason L. Harris
  • Publication number: 20190125459
    Abstract: A method for adjusting the operation of a surgical suturing instrument using machine learning in a surgical suite is disclosed. The method comprises gathering data during surgical procedures, wherein the surgical procedures include the use of a surgical suturing instrument comprising a suturing needle configured to be mechanically advanced through a suturing stroke, analyzing the gathered data to determine an appropriate operational adjustment of the surgical suturing instrument, and adjusting the operation of the surgical suturing instrument to improve the operation of the surgical suturing instrument.
    Type: Application
    Filed: October 26, 2018
    Publication date: May 2, 2019
    Inventors: Frederick E. Shelton, IV, David C. Yates, Darcy W. Greep, Jason L. Harris, Jerome R. Morgan, Chester O. Baxter, III, Gregory J. Bakos, Christopher J. Hess
  • Publication number: 20190029655
    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: Application
    Filed: September 28, 2018
    Publication date: January 31, 2019
    Inventor: Darcy W. Greep
  • Publication number: 20180368908
    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: August 14, 2018
    Publication date: December 27, 2018
    Inventors: Michael D. Ehninger, Paul R. Borgmeier, Darcy W. Greep, Roger Millis, Melissa K. Fischer
  • Publication number: 20180369457
    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: Application
    Filed: June 24, 2017
    Publication date: December 27, 2018
    Inventors: Paul R. Borgmeier, Darcy W. Greep, Shawn K. Horner, Chad S. Frampton
  • Publication number: 20180333194
    Abstract: An electrical instrument includes a proximal section, a distal section, and a flex circuit. The distal section is coupled to the proximal section at a swivel interface to enable rotational independence of the distal section relative to the proximal section. The flex circuit spans the swivel interface between the proximal section and the distal section and provides electrical communication between the proximal section and the distal section even when one of the proximal section and the distal section is rotated relative to the other.
    Type: Application
    Filed: May 16, 2017
    Publication date: November 22, 2018
    Inventors: Darcy W. Greep, Chad S. Frampton
  • Publication number: 20180333193
    Abstract: An instrument includes a body having an interior conduit. A shaft extends distally out of the body and is movable between a retracted position and an extended position. A locking mechanism that selectively secures the shaft in the retracted and extended positions includes grooves in the body and a locking nut having pins that travel through the grooves to move the locking nut between a locked position and an unlocked position. The locking mechanism also includes compression flanges that flex towards and apply pressure/friction to the shaft when the locking nut is in the locked position and release/reduce the pressure/friction from the shaft when the locking nut is in the unlocked position. The compression flanges restrict the movement of the shaft when the compression flanges are flexed towards, and apply pressure to the shaft.
    Type: Application
    Filed: May 16, 2017
    Publication date: November 22, 2018
    Inventors: Darcy W. Greep, Chad S. Frampton
  • Publication number: 20180333191
    Abstract: An instrument includes a body having an interior conduit. A shaft extends distally out of the body and is movable between a retracted position and an extended position. A locking mechanism that selectively secures the shaft in the retracted and extended positions includes grooves in the body and a locking nut having pins that travel through the grooves to move the locking nut between a locked position and an unlocked position. The locking mechanism also includes compression flanges that flex towards and apply pressure/friction to the shaft when the locking nut is in the locked position and release/reduce the pressure/friction from the shaft when the locking nut is in the unlocked position. The compression flanges restrict the movement of the shaft when the compression flanges are flexed towards, and apply pressure to the shaft.
    Type: Application
    Filed: May 9, 2018
    Publication date: November 22, 2018
    Inventors: Darcy W. Greep, Chad S. Frampton
  • Publication number: 20180333201
    Abstract: 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.
    Type: Application
    Filed: May 16, 2017
    Publication date: November 22, 2018
    Inventors: Darcy W. Greep, Paul R. Borgmeier, Chad S. Frampton
  • Publication number: 20180333195
    Abstract: A hand-held instrument has a distal section and a proximal section joined by an attachment piece. The attachment piece enables the distal section to be swiveled/rotated independent of the proximal section. A tip, such as an electrode tip, is coupled to the distal end of the distal section and rotates with the distal section, enabling a user to adjust the rotational orientation of the tip during use.
    Type: Application
    Filed: May 18, 2017
    Publication date: November 22, 2018
    Inventors: Darcy W. Greep, Chad S. Frampton