Patents by Inventor Christopher Hobot

Christopher Hobot 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: 9549920
    Abstract: The present invention is directed to an implantable drug depot useful for reducing, preventing or treating post-operative pain in a patient in need of such treatment, the implantable drug depot comprising a polymer and a therapeutically effective amount of a local anesthetic or pharmaceutically acceptable salt thereof, wherein the drug depot is implantable at a site beneath the skin to reduce, prevent or treat post-operative pain, and the drug depot is capable of releasing (i) a bolus dose of the local anesthetic or pharmaceutically acceptable salt thereof at a site beneath the skin and (ii) a sustained release dose of an effective amount of the local anesthetic or pharmaceutically acceptable salt thereof over a period of at least 4 days.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: January 24, 2017
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: Amira Wohabrebbi, William F. McKay, Vanja Margareta King, Danielle L. Biggs, Katara Shaw, Christopher Hobot, Phillip Edward McDonald
  • Publication number: 20150018390
    Abstract: The present invention is directed to an implantable drug depot useful for reducing, preventing or treating post-operative pain in a patient in need of such treatment, the implantable drug depot comprising a polymer and a therapeutically effective amount of a local anesthetic or pharmaceutically acceptable salt thereof, wherein the drug depot is implantable at a site beneath the skin to reduce, prevent or treat post-operative pain, and the drug depot is capable of releasing (i) a bolus dose of the local anesthetic or pharmaceutically acceptable salt thereof at a site beneath the skin and (ii) a sustained release dose of an effective amount of the local anesthetic or pharmaceutically acceptable salt thereof over a period of at least 4 days.
    Type: Application
    Filed: September 29, 2014
    Publication date: January 15, 2015
    Inventors: Amira Wohabrebbi, William F. McKay, Vanja Margareta King, Danielle L. Biggs, Katara Shaw, Christopher Hobot, Phillip Edward McDonald
  • Patent number: 8801918
    Abstract: Methods and devices for point of care determination of heparin concentration in blood are described. Cartridges including protamine ion sensitive electrodes (ISEs) and reference electrodes and systems for automatically determining heparin concentration in the cartridges are provided. Some systems add blood to a protamine bolus sufficient to bind all heparin, leaving excess protamine. The excess protamine concentration can be determined by measuring the initial slope of the electrode potential rate of change, and comparing the slope to known protamine concentration slope values In some cartridges, an oscillating pressure source moves the blood-protamine mixture back and forth across the protamine ISE. Some systems also use a second blood sample having the heparin removed or degraded to create a blank reference sample. Protamine ISEs can include polyurethane polymer, DNNS ionophore, and NPOE plasticizer.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: August 12, 2014
    Assignee: Medtronic, Inc.
    Inventors: Wei Qin, Daniel S. Cheek, Christopher Hobot, Kelvin Bonnema, Randy Meyer, Douglas Dean Nippoldt, Vitally G. Sitko, Qingshan (Sam) Ye, Narayanan Ramamurthy
  • Publication number: 20100181210
    Abstract: Methods and devices for point of care determination of heparin concentration in blood are described. Cartridges including protamine ion sensitive electrodes (ISEs) and reference electrodes and systems for automatically determining heparin concentration in the cartridges are provided. Some systems add blood to a protamine bolus sufficient to bind all heparin, leaving excess protamine. The excess protamine concentration can be determined by measuring the initial slope of the electrode potential rate of change, and comparing the slope to known protamine concentration slope values In some cartridges, an oscillating pressure source moves the blood-protamine mixture back and forth across the protamine ISE. Some systems also use a second blood sample having the heparin removed or degraded to create a blank reference sample. Protamine ISEs can include polyurethane polymer, DNNS ionophore, and NPOE plasticizer.
    Type: Application
    Filed: March 29, 2010
    Publication date: July 22, 2010
    Inventors: Wei Qin, Daniel S. Cheek, Christopher Hobot, Kelvin Bonnema, Randy Meyer, Douglas Dean Nippoldt, Vitally G. Sitko, Qingsham (Sam) Ye, Narayanan Ramamurthy
  • Patent number: 7699966
    Abstract: Methods and devices for point of care determination of heparin concentration in blood are described. Cartridges including protamine ion sensitive electrodes (ISEs) and reference electrodes and systems for automatically determining heparin concentration in the cartridges are provided. Some systems add blood to a protamine bolus sufficient to bind all heparin, leaving excess protamine. The excess protamine concentration can be determined by measuring the initial slope of the electrode potential rate of change, and comparing the slope to known protamine concentration slope values In some cartridges, an oscillating pressure source moves the blood-protamine mixture back and forth across the protamine ISE. Some systems also use a second blood sample having the heparin removed or degraded to create a blank reference sample. Protamine ISEs can include polyurethane polymer, DNNS ionophore, and NPOE plasticizer.
    Type: Grant
    Filed: May 11, 2005
    Date of Patent: April 20, 2010
    Assignee: Medtronic, Inc.
    Inventors: Wei Qin, Daniel S. Cheek, Christopher Hobot, Kelvin Bonnema, Randy Meyer, Douglas Dean Nippoldt, Vitally G. Sitko, Qingshan (Sam) Ye, Narayanan Ramamurthy
  • Publication number: 20080064845
    Abstract: Compounds that include diorgano groups having quaternary carbons and optionally urethane groups, urea groups, or combinations thereof (i.e., polyurethanes, polyureas, or polyurethane-ureas), as well as materials and methods for making such compounds.
    Type: Application
    Filed: July 11, 2006
    Publication date: March 13, 2008
    Applicant: Medtronic, Inc.
    Inventors: Michael Benz, Edward DiDomenico, Christopher Hobot, Randall Sparer, Kenneth Wagener, John Schwendeman
  • Publication number: 20070276504
    Abstract: Polymer-coated medical devices having improved structural integrity and drug elution profile, and related methods. Treatment of a polymeric undercoat layer to reflow the undercoat polymer results in a substrate/coating interface with improved adhesion.
    Type: Application
    Filed: August 6, 2007
    Publication date: November 29, 2007
    Applicant: Medtronic, Inc.
    Inventors: Randall Sparer, Christopher Hobot, SuPing Lyu
  • Publication number: 20060252905
    Abstract: Compounds that include diorgano groups having quaternary carbons and optionally urethane groups, urea groups, or combinations thereof (i.e., polyurethanes, polyureas, or polyurethane-ureas), as well as materials and methods for making such compounds.
    Type: Application
    Filed: July 11, 2006
    Publication date: November 9, 2006
    Applicant: Medtronic, Inc.
    Inventors: Michael Benz, Edward DiDomenico, Christopher Hobot, Randall Sparer, Kenneth Wagener, John Schwendeman
  • Publication number: 20060016701
    Abstract: Methods and devices for point of care determination of heparin concentration in blood are described. Cartridges including protamine ion sensitive electrodes (ISEs) and reference electrodes and systems for automatically determining heparin concentration in the cartridges are provided. Some systems add blood to a protamine bolus sufficient to bind all heparin, leaving excess protamine. The excess protamine concentration can be determined by measuring the initial slope of the electrode potential rate of change, and comparing the slope to known protamine concentration slope values In some cartridges, an oscillating pressure source moves the blood-protamine mixture back and forth across the protamine ISE. Some systems also use a second blood sample having the heparin removed or degraded to create a blank reference sample. Protamine ISEs can include polyurethane polymer, DNNS ionophore, and NPOE plasticizer.
    Type: Application
    Filed: May 11, 2005
    Publication date: January 26, 2006
    Inventors: Wei Qin, Daniel Cheek, Christopher Hobot, Kelvin Bonnema, Randy Meyer, Douglas Nippoldt, Vitally Sitko, Qingshan (Sam) Ye, Narayanan Ramamurthy
  • Publication number: 20060009806
    Abstract: Implantable medical devices (IMDS) having anti-infective properties are described. Anti-infective agents are disposed in, on, or about at least a portion of a surface of the medical device. The anti-infective agents are disposed in or on a vehicle, which may be in the form of a coating layer or covering. The vehicle may be biodegradable so that, over time, the anti-infective agent is removed from a tissue location into which the device is implanted, reducing the likelihood that microorganisms resistant to the anti-infective agent will develop. IMDs having an anti-infective agent and an anti-activity agent disposed therein, thereabout, or thereon are also described. The anti-activity agent interferes with the activity of the anti-infective agent, may be released from a surface at the IMD at a time when activity of the anti-infective agent is no longer desired, and may reduce the likelihood that microorganisms resistant to the anti-infective agent will develop.
    Type: Application
    Filed: December 9, 2004
    Publication date: January 12, 2006
    Applicant: MEDTRONIC INC
    Inventors: Kenneth Heruth, Christopher Hobot, William Hooper, Mark Lent, Ruchika Singhal, Robert Skime, Randall Sparer, Maura Donovan, William Bertrand
  • Publication number: 20050267543
    Abstract: An anti-infective covering for an implantable medical device is described. The covering may be a polymeric boot that comprises an anti-infective agent in an amount effective to prevent an infection when implanted in a pocket of a patient. The boot is configured to snuggly engage at least a portion of the implantable medical device. The boot may contain a side hole that allows a housing of the implantable medical device to serve as a return electrode. The boot may be placed about the implantable medical device to render the device anti-infective.
    Type: Application
    Filed: December 9, 2004
    Publication date: December 1, 2005
    Applicant: MEDTRONIC INC
    Inventors: Kenneth Heruth, Christopher Hobot, William Hooper, Mark Lent, Ruchika Singhal, Robert Skime, Randall Sparer, Maura Donovan, Richard Ries, Kenneth Cobian
  • Publication number: 20050228161
    Abstract: Compounds that include silicon-containing groups, and optionally urethane groups, urea groups, or combinations thereof (i.e., polyurethanes, polyureas, or polyurethane-ureas), as well as materials and methods for making such compounds.
    Type: Application
    Filed: May 20, 2005
    Publication date: October 13, 2005
    Applicant: Medtronic, Inc.
    Inventors: Michael Benz, Christopher Hobot, David Miller, David Pearson, Mark Tapsak, Edward DiDomenico, Randall Sparer
  • Publication number: 20050064038
    Abstract: An active agent delivery system that includes two or more active agents in a layer of a miscible polymer blend having at least two miscible polymers; wherein delivery of at least one of the active agents occurs predominantly under permeation control; and further wherein the permeability of the active agent that is to be released faster is greater than the permeability of the other one or more active agents.
    Type: Application
    Filed: August 11, 2004
    Publication date: March 24, 2005
    Inventors: Thomas Dinh, Randall Sparer, SuPing Lyu, Kiem Dang, Christopher Hobot
  • Publication number: 20050064005
    Abstract: An active agent delivery system that includes two or more active agents and two or more layers of polymers; wherein at least one layer includes miscible polymer blend comprising two or more miscible polymers; and further wherein delivery of at least one active agent occurs predominantly under permeation control.
    Type: Application
    Filed: August 11, 2004
    Publication date: March 24, 2005
    Inventors: Thomas Dinh, Randall Sparer, SuPing Lyu, Kiem Dang, Christopher Hobot