Patents by Inventor Richard Purvis

Richard Purvis 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).

  • Publication number: 20190269850
    Abstract: In various embodiments, a drug pump includes a housing and, within the housing, an expandable drug reservoir at least part of which is exposed to a pressurized propellant. The propellant exerts a substantially constant pressure on the drug reservoir. A flow restrictor significantly limits outflow from the pump, and preferably has both a small diameter and a long path length, which acts to control the outflow from the drug reservoir. As a result, the pump produces a substantially constant outflow.
    Type: Application
    Filed: March 1, 2019
    Publication date: September 5, 2019
    Inventors: Jason Shih, Gregory Harbers, Richard Purvis, Miho Matsuoka, Andrew Urazaki, Mark Humayun, William Andrew Brandt, Atoosa Lotfi, Didier Sagan, Andrew Dunn
  • Publication number: 20080064943
    Abstract: A system is provided for sensing blood glucose data of a patient. The system includes a sensor, user interface, and an optional auxiliary device. If the connection between the sensor and user interface is by a wire, the sensor remains powered when the wire is disconnected. The communication between the sensor and the user interface may be wireless. The auxiliary device can be a patient monitor or other display or signal device, which displays information about the blood glucose data collected by the sensor. The sensor is connected to sensor electronics, which include a sensor power supply, a voltage regulator, and optionally a memory and processor.
    Type: Application
    Filed: October 30, 2007
    Publication date: March 13, 2008
    Inventors: Cary Talbot, John Mastrototaro, Rajiv Shah, Edward Chernoff, John Mueller, Varaz Shahmirian, Richard Purvis, Wayne Morgan, Rebecca Gottlieb
  • Publication number: 20080057779
    Abstract: Methods and apparatuses for electrically connecting a medical glucose monitor to a glucose sensor set, as well as for testing the operation of the glucose monitor, monitor cable and glucose sensor set are provided. In one embodiment, an electric cable comprises a cable member, a first connector and a second connector. The cable member in turn comprises at least one insulated conductor, a conductive shielding layer disposed around the at least one insulated conductor; and an insulating layer disposed around the conductive shielding layer. A glucose monitoring system test plug provides for a releasable electrical connection with the electric cable. In one embodiment, the test plug comprises a housing and a fitting affixed thereto which is adapted to electrically couple the test plug with the electric cable.
    Type: Application
    Filed: August 28, 2007
    Publication date: March 6, 2008
    Applicant: Medtronic MiniMed, Inc.
    Inventors: John Mastrototaro, Richard Purvis, Edgardo Halili, Eric Johnson
  • Publication number: 20080030369
    Abstract: A telemetered characteristic monitor system includes a remotely located data receiving device, a sensor for producing signal indicative of a characteristic of a user, and a transmitter device. The transmitter device includes a housing, a sensor connector, a processor, and a transmitter. The transmitter receives the signals from the sensor and wirelessly transmits the processed signals to the remotely located data receiving device. The processor coupled to the sensor processes the signals from the sensor for transmission to the remotely located data receiving device. The data receiving device may be a characteristic monitor, a data receiver that provides data to another device, an RF programmer for a medical device, a medication delivery device (such as an infusion pump), or the like.
    Type: Application
    Filed: October 2, 2007
    Publication date: February 7, 2008
    Inventors: Alfred Mann, Richard Purvis, John Mastrototaro, James Causey, James Henke, Peter Hong, John Livingston, Clifford Hague, Brad Hite
  • Patent number: 7305779
    Abstract: An apparatus includes a shaft that has proximal and distal end portions. The shaft includes spaced grip covers conjoined about an outer surface thereof and is provided with a centrally registered sleeve formed therein. An arcuately shaped plow section is affixed to the distal end portion and includes a heel support that has an arcuately shaped top surface for assisting to maintain the plow section registered along a horizontal plane. The plow section further includes fastening members spaced along the bottom edge for removing the bottom edge to be sharpened or replaced. The apparatus further includes a mechanism for pivoting the plow section between alternate radial paths during operating conditions. A mechanism is included for automatically biasing the plow section to an equilibrium position after the plow section is biased to a pivoted position.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: December 11, 2007
    Inventor: Richard A. Purvis
  • Publication number: 20070244383
    Abstract: A system is provided for sensing blood glucose data of a patient. The system includes a sensor, user interface, and an optional auxiliary device. If the connection between the sensor and user interface is by a wire, the sensor remains powered when the wire is disconnected. The communication between the sensor and the user interface may be wireless. The auxiliary device can be a patient monitor or other display or signal device, which displays information about the blood glucose data collected by the sensor. The sensor is connected to sensor electronics, which include a sensor power supply, a voltage regulator, and optionally a memory and processor.
    Type: Application
    Filed: May 7, 2007
    Publication date: October 18, 2007
    Applicant: Medtronic Minimed, Inc.
    Inventors: Cary Talbot, John Mastrototaro, Rajiv Shah, Edward Chernoff, John Mueller, Varaz Shahimirian, Richard Purvis, Wayne Morgan, Rebecca Gottlieb
  • Publication number: 20070156033
    Abstract: A medical device module for use in a system with a remote programmer and/or a personal data assistant (PDA) with at least one medical device includes a housing, at least one medical device and a processor. The housing is adapted to couple with the PDA. The at least one medical device interface is coupled to the housing for interfacing with the at least one medical device. The processor is coupled to the at least one medical device interface to process data from the at least one medical device. The processor is also capable of interfacing with the PDA.
    Type: Application
    Filed: March 12, 2007
    Publication date: July 5, 2007
    Applicant: Medtronic, Inc.
    Inventors: James Causey, III, Richard Purvis, James Henke
  • Publication number: 20070100283
    Abstract: An external infusion device that infuses a fluid into an individual's body includes a housing, a reservoir, a drive system, a power supply, electrical elements, and a tab. The reservoir contains the fluid, and the drive system forces the fluid from the reservoir. The electrical elements control the power to the drive system to regulate the rate that fluid is forced from the reservoir. The tab mates with the housing, and contains at least one electrical element. The tab is removable, and may be replaced with a different tab. The different tab may change the rate fluid is forced from the reservoir. A tab may be removed from one external infusion device and installed in a different external infusion device. The tab may be limited to use in a predetermined number of external infusion devices and may include a power supply.
    Type: Application
    Filed: November 6, 2006
    Publication date: May 3, 2007
    Inventors: James Causey, William Stutz, Clyde Nason, Sheldon Moberg, Jay Yonemoto, Richard Purvis, Cary Talbot
  • Publication number: 20070087633
    Abstract: Methods and apparatuses for electrically connecting a medical glucose monitor to a glucose sensor set, as well as for testing the operation of the glucose monitor, monitor cable and glucose sensor set are provided. In one embodiment, an electric cable comprises a cable member, a first connector and a second connector. The cable member in turn comprises at least one insulated conductor, a conductive shielding layer disposed around the at least one insulated conductor; and an insulating layer disposed around the conductive shielding layer. A glucose monitoring system test plug provides for a releasable electrical connection with the electric cable. In one embodiment, the test plug comprises a housing and a fitting affixed thereto which is adapted to electrically couple the test plug with the electric cable.
    Type: Application
    Filed: December 12, 2006
    Publication date: April 19, 2007
    Applicant: MINIMED INC.
    Inventors: John Mastrototaro, Richard Purvis, Edgardo Halili, Eric Johnson
  • Publication number: 20060202859
    Abstract: A telemetered characteristic monitor system includes a remotely located data receiving device, a sensor for producing signal indicative of a characteristic of a user, and a transmitter device. The transmitter device includes a housing, a sensor connector, a processor, and a transmitter. The transmitter receives the signals from the sensor and wirelessly transmits the processed signals to the remotely located data receiving device. The processor coupled to the sensor processes the signals from the sensor for transmission to the remotely located data receiving device. The data receiving device may be a characteristic monitor, a data receiver that provides data to another device, an RF programmer for a medical device, a medication delivery device (such as an infusion pump), or the like.
    Type: Application
    Filed: December 30, 2005
    Publication date: September 14, 2006
    Inventors: John Mastrototaro, Edward Chernoff, David Choy, James Henke, Richard Purvis, Peter Hong
  • Publication number: 20060025663
    Abstract: A system is provided for sensing blood glucose data of a patient. The system includes a sensor, user interface, and an optional auxiliary device. If the connection between the sensor and user interface is by a wire, the sensor remains powered when the wire is disconnected. The communication between the sensor and the user interface may be wireless. The auxiliary device can be a patient monitor or other display or signal device, which displays information about the blood glucose data collected by the sensor. The sensor is connected to sensor electronics, which include a sensor power supply, a voltage regulator, and optionally a memory and processor.
    Type: Application
    Filed: July 27, 2004
    Publication date: February 2, 2006
    Inventors: Cary Talbot, John Mastrototaro, Rajiv Shah, Edward Chernoff, John Mueller, Varaz Shahmirian, Richard Purvis, Wayne Morgan, Rebecca Gottlieb
  • Publication number: 20060007017
    Abstract: A telemetered characteristic monitor system includes a remotely located data receiving device, a sensor for producing signal indicative of a characteristic of a user, and a transmitter device. The transmitter device includes a housing, a sensor connector, a processor, and a transmitter. The transmitter receives the signals from the sensor and Tirelessly transmits the processed signals to the remotely located data receiving device. The processor coupled to the sensor processes the signals from the sensor for transmission to the remotely located data receiving device. The data receiving device may be a characteristic monitor, a data receiver that provides data to another device, an RF programmer for a medical device, a medication delivery device (such as an infusion pump), or the like.
    Type: Application
    Filed: September 12, 2005
    Publication date: January 12, 2006
    Inventors: Alfred Mann, Richard Purvis, John Mastrototaro, James Causey, James Henke, Peter Hong, John Livingston, Clifford Hague, Brad Hite
  • Publication number: 20060001550
    Abstract: A telemetered characteristic monitor system includes a remotely located data receiving device, a sensor for producing signal indicative of a characteristic of a user, and a transmitter device. The transmitter device includes a housing, a sensor connector, a processor, and a transmitter. The transmitter receives the signals from the sensor and Tirelessly transmits the processed signals to the remotely located data receiving device. The processor coupled to the sensor processes the signals from the sensor for transmission to the remotely located data receiving device. The data receiving device may be a characteristic monitor, a data receiver that provides data to another device, an RF programmer for a medical device, a medication delivery device (such as an infusion pump), or the like.
    Type: Application
    Filed: September 12, 2005
    Publication date: January 5, 2006
    Inventors: Alfred Mann, Richard Purvis, John Mastrototaro, James Causey, James Henke, Peter Hong, John Livingston, Clifford Hague, Brad Hite