Patents by Inventor Randall V. Sparer

Randall V. Sparer 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: 8691258
    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: Grant
    Filed: December 9, 2004
    Date of Patent: April 8, 2014
    Assignee: Medtronic, Inc.
    Inventors: Kenneth T. Heruth, Christopher M. Hobot, William J. Hooper, Mark S. Lent, Ruchika Singhal, Robert M. Skime, Randall V. Sparer, Maura G. Donovan, William J. Bertrand
  • Patent number: 8637064
    Abstract: A process for making an implantable material comprising a composite of a biocompatible polymer and a bioactive agent. The composite combines desirable mechanical properties of polymers and the bioactivity of tissue or one or more component of tissue. More particularly, but not exclusively, the invention relates to methods for the manufacture of implantable materials, devices and components via a powder molding process.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: January 28, 2014
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: SuPing Lyu, Christopher M. Hobot, Sean M. Haddock, Brian A. Loy, Randall V. Sparer, K. Matthew Kinnane, Jeffrey M. Gross
  • Publication number: 20120149864
    Abstract: Poly(orthoester) polymers, and methods of making and using such poly(orthoester) polymers are provided. The poly(orthoester) polymers can be useful for applications including, for example, medical devices and pharmaceutical compositions. In a preferred embodiment, the poly(orthoester) polymers are biodegradable.
    Type: Application
    Filed: February 14, 2012
    Publication date: June 14, 2012
    Applicant: Medtronics, Inc.
    Inventors: Julie A. Alkatout, Michael Eric Benz, Randall V. Sparer
  • Patent number: 8133968
    Abstract: Poly(orthoester) polymers, and methods of making and using such poly(orthoester) polymers are provided. The poly(orthoester) polymers can be useful for applications including, for example, medical devices and pharmaceutical compositions. In a preferred embodiment, the poly(orthoester) polymers are biodegradable.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: March 13, 2012
    Assignee: Medtronic, Inc.
    Inventors: Julie A. Alkatout, Michael Eric Benz, Randall V. Sparer
  • Publication number: 20110269720
    Abstract: Methods and kits for treating infection associated with implantation of a medical device use of minocycline and rifampin microparticles. The microparticles, in a suitable medium, can be injected in a patient in proximity to the device. The drugs may be configured to be released from the polymer matrix in a controlled manner by manipulation of the properties of the polymer forming the microparticle. By injecting the drugs in the form of microparticles, the drugs can be distributed in a manner so that the entire pocket is protected without affecting device function. The microparticles can be produced aseptically without affecting the manufacturing of the device.
    Type: Application
    Filed: April 28, 2010
    Publication date: November 3, 2011
    Applicant: MEDTRONIC, INC.
    Inventors: Christopher M. Hobot, Randall V. Sparer, Mark E. Hughes, William Ferris
  • Publication number: 20110082275
    Abstract: Poly(orthoester) polymers, and methods of making and using such poly(orthoester) polymers are provided. The poly(orthoester) polymers can be useful for applications including, for example, medical devices and pharmaceutical compositions. In a preferred embodiment, the poly(orthoester) polymers are biodegradable.
    Type: Application
    Filed: December 14, 2010
    Publication date: April 7, 2011
    Applicant: Medtronic, Inc.
    Inventors: Julie A. Alkatout, Michael Eric Benz, Randall V. Sparer
  • Patent number: 7875697
    Abstract: Poly(orthoester) polymers, and methods of making and using such poly(orthoester) polymers are provided. The poly(orthoester) polymers can be useful for applications including, for example, medical devices and pharmaceutical compositions. In a preferred embodiment, the poly(orthoester) polymers are biodegradable.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: January 25, 2011
    Assignee: Medtronic, Inc.
    Inventors: Julie A. Alkatout, Michael Eric Benz, Randall V. Sparer
  • Patent number: 7658727
    Abstract: An implantable medical device comprising a drug-loaded polymer overlaid with a fabric that promotes tissue ingrowth is useful in a wide variety of tissue engineering applications. The invention includes, for example, prosthetic heart valves, annuloplasty rings, and grafts, having enhanced biocompatibility and biostability. Methods of making and using the implantable medical devices of the invention are also included.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: February 9, 2010
    Assignee: Medtronic, Inc
    Inventors: Brian C. A. Fernandes, Maura G. Donovan, Randall V. Sparer, Jesus W. Casas-Bejar, Mark W. Torrianni
  • Patent number: 7365134
    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: Grant
    Filed: May 20, 2005
    Date of Patent: April 29, 2008
    Assignee: Medtronic, Inc
    Inventors: Michael Eric Benz, Christopher M. Hobot, David L. Miller, David A. Pearson, Mark A. Tapsak, Edward DiDomenico, Randall V. Sparer
  • Publication number: 20080069856
    Abstract: A process for making an implantable material comprising a composite of a biocompatible polymer and a bioactive agent. The composite combines desirable mechanical properties of polymers and the bioactivity of tissue or one or more component of tissue. More particularly, but not exclusively, the invention relates to methods for the manufacture of implantable materials, devices and components via a powder molding process.
    Type: Application
    Filed: September 20, 2006
    Publication date: March 20, 2008
    Inventors: SuPing Lyu, Christopher M. Hobot, Sean M. Haddock, Brian Loy, Randall V. Sparer, K. Matthew Kinnane, Jeffrey M. Gross
  • Publication number: 20070249754
    Abstract: Methods of modifying polyurethanes using surface treated clay are disclosed herein. Such methods can be useful for controlling the surface concentration of one or more additives in the polyurethane, which can be useful for fabricating medical devices therefrom.
    Type: Application
    Filed: April 24, 2007
    Publication date: October 25, 2007
    Applicant: Medtronic, Inc.
    Inventors: SuPing Lyu, Thomas P. Grailer, James Louis Schley, Christopher M. Hobot, Christopher A. Deegan, Randall V. Sparer
  • Patent number: 7101956
    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: Grant
    Filed: November 13, 2002
    Date of Patent: September 5, 2006
    Assignee: Medtronic, Inc.
    Inventors: Michael Eric Benz, Edward DiDomenico, Christopher M. Hobot, Randall V. Sparer, Kenneth B. Wagener, John E. Schwendeman
  • Patent number: 6984700
    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: Grant
    Filed: September 17, 2002
    Date of Patent: January 10, 2006
    Assignee: Medtronic, Inc.
    Inventors: Michael Eric Benz, Christopher M. Hobot, David L. Miller, David A. Pearson, Mark A. Tapsak, Edward DiDomenico, Randall V. Sparer
  • Patent number: 6879861
    Abstract: A novel polymeric electrically insulating material that includes a linked voltage stabilizing agent. Also provided are methods of making the novel material and articles and devices that incorporate the novel material, particularly implantable medical devices.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: April 12, 2005
    Assignee: Medtronic, Inc.
    Inventors: Michael E. Benz, Mark A. Tapsak, Angela Pratt, Randall V. Sparer
  • Publication number: 20040127978
    Abstract: The present invention provides active agent delivery systems for use in medical devices, wherein the active agent delivery systems include an active agent and a hydrophilic miscible polymer blend that includes an active agent and a miscible polymer blend comprising a hydrophilic polymer (preferably, a polyurethane) and a second polymer having a different swellability in water at 37° C.
    Type: Application
    Filed: August 13, 2003
    Publication date: July 1, 2004
    Applicant: Medtronic, Inc.
    Inventors: Randall V. Sparer, Christopher M. Hobot, SuPing Lyu, Kiem Dang
  • Publication number: 20040115273
    Abstract: The present invention provides active agent delivery systems for use in medical devices, wherein the active agent delivery systems include an active agent and a miscible polymer blend that includes a hydrophobic cellulose derivative and a polyvinyl homopolymer or copolymer selected from the group consisting of a polyvinyl alkylate homopolymer or copolymer, a polyvinyl alkyl ether homopolymer or copolymer, a polyvinyl acetal homopolymer or copolymer, and combinations thereof.
    Type: Application
    Filed: August 13, 2003
    Publication date: June 17, 2004
    Applicant: Medtronic, Inc.
    Inventors: Randall V. Sparer, Christopher M. Hobot, SuPing Lyu, Kiem Dang, Peiwen Cheng
  • Publication number: 20040086569
    Abstract: The present invention provides active agent delivery systems for use in medical devices, wherein the active agent delivery systems include an active agent and a miscible polymer blend.
    Type: Application
    Filed: August 13, 2003
    Publication date: May 6, 2004
    Applicant: Medtronic, Inc.
    Inventors: Randall V. Sparer, Christopher M. Hobot, SuPing Lyu, Kishore Udipi
  • Publication number: 20040054113
    Abstract: Polymers that include silane-containing groups in soft segments, and optionally urethane groups, as well as medical devices and methods for making such compounds.
    Type: Application
    Filed: September 16, 2003
    Publication date: March 18, 2004
    Applicant: Medtronic, Inc.
    Inventors: Michael E. Benz, Christopher M. Hobot, Kelvin Bonnema, Randall V. Sparer
  • Publication number: 20040054080
    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: September 17, 2002
    Publication date: March 18, 2004
    Inventors: Michael Eric Benz, Christopher M. Hobot, David L. Miller, David A. Pearson, Mark A. Tapsak, Edward DiDomenico, Randall V. Sparer
  • Publication number: 20040054210
    Abstract: Compounds that include diorgano groups having quaternary carbons, 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: September 16, 2003
    Publication date: March 18, 2004
    Applicant: Medtronic, Inc.
    Inventors: Michael E. Benz, Christopher M. Hobot, Randall V. Sparer