Patents by Inventor David W. Kelly

David W. Kelly 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: 11219434
    Abstract: A method of surgical dissection of tissue with a dissector comprising: an elongate shaft comprising a proximal portion and a distal portion, wherein the distal portion comprises a plurality of segments that articulate with respect to one another and the plurality of segments includes a distal segment having a distal end; and a handle attached to the proximal portion of the shaft, wherein the handle comprises controls for articulating the plurality of segments of the distal portion of the shaft with respect to one another, comprising the steps of: positioning the distal end of the dissector in a body; advancing the distal end through the body to dissect tissue; and simultaneously articulating the plurality of segments with respect to one another. A method of surgical dissection of tissue and guiding a second device to a desired physiological location with a first device.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: January 11, 2022
    Assignee: Medtronic, Inc.
    Inventors: Mark Thompson, Darrin Dickerson, Brett S. Bowman, Christopher F. Kelly, William W. Malecki, David Francischelli, Mark Stewart, Thomas Daigle, Douglas Gubbin, David Kim, Paul Rothstein, Adam Podbelski, Christopher Plott, Benjamin K. Yaffe
  • Publication number: 20210402146
    Abstract: A catheter (700) includes a tubular member (702) having a lumen and an outer surface, a sleeve (704) configured to be positioned in the lumen in a retracted configuration and to evert over at least a portion of the outer surface in an everted configuration, and a filament (700) configured to retract the sleeve (702) into the retracted configuration. The catheter includes an aperture (774) proximal of a distal end, where the filament (770) extends through the aperture (774) from the lumen. A pull member (772) may be on a distal end of the filament (770). The filament (770) may be looped, coiled, and/or bunched in the catheter (700) when the sleeve (704) is in the retracted configuration. A shuttle (718) may be attached to a distal end of the sleeve (704), where the shuttle (718) includes a tubular member configured to maintain patency of the sleeve (704), and the filament (770) engages the shuttle (718) to retract the sleeve (704) into the lumen.
    Type: Application
    Filed: November 13, 2018
    Publication date: December 30, 2021
    Inventors: Morgan TIERNEY, Ronald John KELLY, David SCULLY, Aleksejus FOMINAS, David ROWE, Rodney W. DENLINGER, Adrian MOHAN
  • Publication number: 20210148848
    Abstract: Embodiments herein relate to systems and devices for measuring analyte presence on graphene varactors, which can be used for analyte sensing in physiological gas samples. In an embodiment, a system for measuring analyte presence on a graphene varactor is included having a capacitance to digital converter (CDC) and a graphene varactor. The CDC can be in electrical communication with the graphene varactor and can be configured to measure the capacitance of the graphene varactor in response to an excitation signal over a plurality of DC bias voltages. Other embodiments are also included herein.
    Type: Application
    Filed: November 23, 2020
    Publication date: May 20, 2021
    Inventors: David W. Kelly, Gregory J. Sherwood, Justin Theodore Nelson
  • Patent number: 10852264
    Abstract: Embodiments herein relate to systems and devices for measuring analyte presence on graphene varactors, which can be used for analyte sensing in physiological gas samples. In an embodiment, a system for measuring analyte presence on a graphene varactor is included having a capacitance to digital converter (CDC) and a graphene varactor. The CDC can be in electrical communication with the graphene varactor and can be configured to measure the capacitance of the graphene varactor in response to an excitation signal over a plurality of DC bias voltages. Other embodiments are also included herein.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: December 1, 2020
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: David W. Kelly, Gregory J. Sherwood, Justin Theodore Nelson
  • Publication number: 20190025237
    Abstract: Embodiments herein relate to systems and devices for measuring analyte presence on graphene varactors, which can be used for analyte sensing in physiological gas samples. In an embodiment, a system for measuring analyte presence on a graphene varactor is included having a capacitance to digital converter (CDC) and a graphene varactor. The CDC can be in electrical communication with the graphene varactor and can be configured to measure the capacitance of the graphene varactor in response to an excitation signal over a plurality of DC bias voltages. Other embodiments are also included herein.
    Type: Application
    Filed: July 17, 2018
    Publication date: January 24, 2019
    Inventors: David W. Kelly, Gregory J. Sherwood, Justin Theodore Nelson
  • Publication number: 20180306763
    Abstract: Methods and systems for endpoint detection of lyophilization processes are provided. A method for detecting an endpoint in a lyophilization process includes monitoring a total pressure of gases within a chamber containing a sample undergoing lyophilization and controlling a mass rate of flow of inert gas delivered to the chamber to replace water vapor removed from the chamber. The method further includes determining that sufficient water has been removed from the chamber based on total pressure and mass flow rate of inert gas being delivered.
    Type: Application
    Filed: April 13, 2018
    Publication date: October 25, 2018
    Inventors: Gerardo A. Brucker, David W. Kelly, Philip D. Acomb
  • Publication number: 20180220926
    Abstract: A sensing apparatus includes a magneto-resistive (MR) sensing element for sensing magnetic fields and semiconductor circuitry including an output circuit coupled to the MR sensing element. The output circuit generates a sensing signal proportional to the sensed magnetic fields to be combined with a bias signal to the MR sensing element.
    Type: Application
    Filed: February 5, 2018
    Publication date: August 9, 2018
    Inventors: David W. Kelly, Matthew Hein
  • Publication number: 20180220927
    Abstract: A sensing apparatus includes a magneto-resistive sensing element and a coil element formed on a first chip, and semiconductor circuitry formed on a second chip. The magneto-resistive sensing element senses magnetic fields, while the coil element is used to reset a magnetic orientation of the magneto-resistive sensing element. The semiconductor circuitry includes a reset circuit that controls the coil element and an amplifier circuit coupled to the magneto-resistive sensing element. The amplifier circuit operates to generate a sensing signal that is proportional to the sensed magnetic fields. The sensing signal is then used to activate the reset circuit.
    Type: Application
    Filed: February 5, 2018
    Publication date: August 9, 2018
    Inventors: David W. Kelly, Mathew Hein
  • Publication number: 20180224508
    Abstract: A method uses an electromagnetic navigation system, including a number of field transmitters and at least one receiver. The method includes receiving a field signal from the at least one receiver, and the field signal includes a number of different frequencies corresponding to each of the field transmitters. The received field signal is multiplied by a synchronization signal using a frequency-division multiplexing scheme, and the received field signal is integrated over a predetermined sampling interval and converted into an integrated signal having only a desired signal based on the synchronization signal. The integrated signal is outputted for subsequent processing of the electromagnetic navigation system.
    Type: Application
    Filed: February 5, 2018
    Publication date: August 9, 2018
    Inventors: David W. Kelly, Eric P. Bailey
  • Patent number: 9430148
    Abstract: A method is provided, for example, to implement multiplexed communication between a controller and a preamplifier in a storage device. For example, multiplexed communication is implemented by controlling a bidirectional serial data line of a digital bus to selectively transmit digital signals in either a first direction from the controller to the preamplifier or a second direction from the preamplifier to the controller, in response to a direction control signal, and concurrently transmitting a synchronous clock signal over a clock signal line of the digital bus from the controller to the preamplifier to synchronize transfer and processing of the digital signals transmitted on the bidirectional serial data line of the digital bus. The direction control signal is transmitted from the controller to the preamplifier on one of the bidirectional serial data line and the clock signal line of the digital bus.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: August 30, 2016
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Ross S. Wilson, David W. Kelly, Daniel J. Dolan, Richard Rauschmayer
  • Patent number: 9401174
    Abstract: Systems and method relating generally to data processing, and more particularly to systems and methods for utilizing multiple data streams for data recovery from a storage device.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: July 26, 2016
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: James P. Howley, Suharli Tedja, Adam Lipsey, Daniel James Dolan, Jr., David W. Kelly
  • Publication number: 20160155464
    Abstract: Systems and method relating generally to data processing, and more particularly to systems and methods for utilizing multiple data streams for data recovery from a storage device.
    Type: Application
    Filed: December 1, 2014
    Publication date: June 2, 2016
    Inventors: James P. Howley, Suharli Tedja, Adam Lipsey, Daniel James Dolan, JR., David W. Kelly
  • Patent number: 9343103
    Abstract: A method is provided to enable communication between a controller and a preamplifier in a storage device. For example, the method includes implementing a serial port which is configured to transmit digital signals between the controller and the preamplifier over a single bidirectional serial data line. The serial port is controlled to selectively transmit digital signals over the bidirectional serial data line in either a first direction from the controller to the preamplifier or a second direction from the preamplifier to the controller.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: May 17, 2016
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Ross S. Wilson, Daniel J. Dolan, David W. Kelly, Richard Rauschmayer
  • Patent number: 9281005
    Abstract: A method is provided, for example, to implement multiplexed communication on an analog bus between a recording channel and a preamplifier in a storage device. A first input of read data circuitry within the recording channel is switchably connected to a first analog line of the analog bus to receive read data transmitted from the preamplifier to the recording channel over the first analog line during a read operation. In addition, a write data output of write data circuitry within the recording channel is switchably connected to the first analog line of the analog bus to transmit write data from the recording channel to the preamplifier over the first analog line during a write operation.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: March 8, 2016
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Ross S. Wilson, David W. Kelly, Daniel J. Dolan, Richard Rauschmayer
  • Publication number: 20160012846
    Abstract: A method is provided to enable communication between a controller and a preamplifier in a storage device. For example, the method includes implementing a serial port which is configured to transmit digital signals between the controller and the preamplifier over a single bidirectional serial data line. The serial port is controlled to selectively transmit digital signals over the bidirectional serial data line in either a first direction from the controller to the preamplifier or a second direction from the preamplifier to the controller.
    Type: Application
    Filed: July 11, 2014
    Publication date: January 14, 2016
    Inventors: Ross S. Wilson, Daniel J. Dolan, David W. Kelly, Richard Rauschmayer
  • Publication number: 20150318030
    Abstract: A method is provided, for example, to implement multiplexed communication between a controller and a preamplifier in a storage device. For example, multiplexed communication is implemented by controlling a bidirectional serial data line of a digital bus to selectively transmit digital signals in either a first direction from the controller to the preamplifier or a second direction from the preamplifier to the controller, in response to a direction control signal, and concurrently transmitting a synchronous clock signal over a clock signal line of the digital bus from the controller to the preamplifier to synchronize transfer and processing of the digital signals transmitted on the bidirectional serial data line of the digital bus. The direction control signal is transmitted from the controller to the preamplifier on one of the bidirectional serial data line and the clock signal line of the digital bus.
    Type: Application
    Filed: May 1, 2014
    Publication date: November 5, 2015
    Applicant: LSI Corporation
    Inventors: Ross S. Wilson, David W. Kelly, Daniel J. Dolan, Richard Rauschmayer
  • Publication number: 20150318014
    Abstract: A method is provided, for example, to implement multiplexed communication on an analog bus between a recording channel and a preamplifier in a storage device. A first input of read data circuitry within the recording channel is switchably connected to a first analog line of the analog bus to receive read data transmitted from the preamplifier to the recording channel over the first analog line during a read operation. In addition, a write data output of write data circuitry within the recording channel is switchably connected to the first analog line of the analog bus to transmit write data from the recording channel to the preamplifier over the first analog line during a write operation.
    Type: Application
    Filed: May 1, 2014
    Publication date: November 5, 2015
    Applicant: LSI Corporation
    Inventors: Ross S. Wilson, David W. Kelly, Daniel J. Dolan, Richard Rauschmayer
  • Publication number: 20150302887
    Abstract: An apparatus for measuring cross-talk in an array reader magnetic storage system includes an array reader with multiple read heads operable to read data from a magnetic storage medium, a first preamplifier connected to a first read head, a second preamplifier connected to a second read head, and a cross-talk measurement circuit connected to the first preamplifier and to the second preamplifier, operable to measure cross-talk between a first signal from the first read head and a second signal from the second read head.
    Type: Application
    Filed: April 23, 2014
    Publication date: October 22, 2015
    Applicant: LSI Corporation
    Inventors: Travis Oenning, Ross S. Wilson, David W. Kelly, Jason S. Goldberg
  • Patent number: 9153249
    Abstract: An apparatus for measuring cross-talk in an array reader magnetic storage system includes an array reader with multiple read heads operable to read data from a magnetic storage medium, a first preamplifier connected to a first read head, a second preamplifier connected to a second read head, and a cross-talk measurement circuit connected to the first preamplifier and to the second preamplifier, operable to measure cross-talk between a first signal from the first read head and a second signal from the second read head.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: October 6, 2015
    Assignee: LSI Corporation
    Inventors: Travis Oenning, Ross S. Wilson, David W. Kelly, Jason S. Goldberg
  • Patent number: 9064539
    Abstract: The present inventions are related to systems and methods for data processing, and more particularly to systems and methods for synchronizing operations in a data storage system.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: June 23, 2015
    Assignee: LSI Corporation
    Inventors: Scott M. O'Brien, Jason P. Brenden, Cameron C. Rabe, Peter J. Windler, Joseph D. Stenger, David W. Kelly