Patents by Inventor Nathan Lockwood

Nathan Lockwood 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: 20160175489
    Abstract: Embodiments of the disclosure include lubricious coatings. In an embodiment the disclosure includes a lubricious coating for a medical device including first and second coated layers. The first coated layer is between the second coated layer and the device surface and includes a vinyl pyrrolidone polymer and a photo reactive group. The second coated layer is in direct contact with the first coated layer and is a top coating that includes an acrylic acid polymer. The second coated layer can optionally include photoreactive groups. The coating was found to have a very low number of particulates (e.g., 10 ?m or greater) which is very desirable for in vivo use.
    Type: Application
    Filed: February 29, 2016
    Publication date: June 23, 2016
    Inventors: David E. Babcock, Timothy M. Kloke, Joseph S. McGonigle, Nathan Lockwood, Bruce Jelle
  • Publication number: 20160089480
    Abstract: Embodiments of the invention include medical device elements formed from polymers with lubricious properties. In an embodiment, a method of forming a medical device element is included. The method can include mixing a first polymeric component and a second polymeric component to form a polymer mixture. The method can further include forming the polymer mixture into the medical device element. The method can also include treating the polymer mixture with at least one of an acid or a base. In an embodiment, a medical device is included. The medical device can include a lubricious element, the lubricious element comprising a mixture of a first polymeric component and a second polymeric component. The second polymeric component can include a polymer that is treated with at least one of an acid or a base after formation of the element. Other embodiments are also included herein.
    Type: Application
    Filed: September 21, 2015
    Publication date: March 31, 2016
    Inventors: Ralph A. Chappa, Nathan A. Lockwood, Joseph Schmidt McGonigle
  • Publication number: 20160022502
    Abstract: Embodiments of the invention include wound packing devices and methods of making and using the same. In an embodiment, the invention includes a wound packing device including a plurality of spacing elements capable of absorbing exudate, wherein the surface of the spacing elements resist colonization by microorganisms. The wound packing device can also include a connector connecting the plurality of spacing elements to one another. Other embodiments are also included herein.
    Type: Application
    Filed: August 6, 2015
    Publication date: January 28, 2016
    Inventors: Shawn Fuller, Bryan A. Claseman, Joram Slager, Jeffrey J. Missling, Gary Maharaj, Gary W. Opperman, Nathan A. Lockwood, Robert W. Hergenrother, Charles Olson
  • Patent number: 9177084
    Abstract: Methods, systems, and apparatus, including computer programs encoded on a system, for generating an analytical energy model from a conceptual representation or a mass form model.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: November 3, 2015
    Assignee: Autodesk, Inc.
    Inventors: Kyle Bernhardt, Lillian M. Smith, Jack Conrad Gray, Nathan Lockwood
  • Patent number: 9155671
    Abstract: Embodiments of the invention include wound packing devices and methods of making and using the same. In an embodiment, the invention includes a wound packing device including a plurality of spacing elements capable of absorbing exudate, wherein the surface of the spacing elements resist colonization by microorganisms. The wound packing device can also include a connector connecting the plurality of spacing elements to one another. Other embodiments are also included herein.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: October 13, 2015
    Assignee: SurModics, Inc.
    Inventors: Shawn Fuller, Bryan A. Claseman, Joram Slager, Jeffrey J. Missling, Gary Maharaj, Gary W. Opperman, Nathan Lockwood, Robert W. Hergenrother, Charles Olson
  • Publication number: 20150196497
    Abstract: A biocompatible polymeric controlled release matrix barrier structure for delivery of one or more bioactive agents from an implantable medical device is described. In an embodiment, a biocompatible polymeric controlled release matrix barrier structure is included. The biocompatible polymeric controlled release matrix can include a body structure formed of a compliant material comprising one or more compliant biocompatible polymers and one or more bioactive agents. The body structure can define a central aperture through which a subcutaneous element of an implantable medical device passes. Other embodiments are included herein.
    Type: Application
    Filed: March 26, 2015
    Publication date: July 16, 2015
    Inventors: Joseph Schmidt McGonigle, Aleksey V. Kurdyumov, Jeffrey J. Missling, Nathan A. Lockwood, Kevin W. Burton, Beth A. Petersen
  • Patent number: 8956682
    Abstract: The invention is directed to medical device coatings, such as coated guidewires and catheters, containing a visualization moiety providing color to the coating in ambient or applied light. The coating allows for visual or machine inspection of coating properties such as uniformity of coverage. In some embodiments the coatings include the visualization moiety and an activated UV photogroup, which is used to provide covalent bonding in the coating. The visualization moiety can be in particulate form and entrained in the coating, or can be covalently bonded to the hydrophilic polymer backbone. In other embodiments the visualization moiety includes a stilbene chemical group. Exemplary coatings include a hydrophilic vinyl pyrrolidone polymer, which can provide lubricity to the device surface, along with the colored properties.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: February 17, 2015
    Assignee: Surmodics, Inc.
    Inventors: Nathan A. Lockwood, Bruce M. Jelle, Aleksey V. Kurdyumov
  • Patent number: 8802121
    Abstract: Silane-functionalized hydrophobic ?(1?4)glucopyranose polymers and polymeric matrices are described. Biodegradable matrices can be formed from hydrophobic ?(1?4)glucopyranose polymers with reactive pendent silyl ether groups. Reaction of the silyl ether groups provides improved matrix formation through bonding to a device surface of a device, polymer-polymer crosslinking, or both. Biodegradable matrices can be used for the preparation of implantable and injectable medical devices, including those that release a bioactive agent.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: August 12, 2014
    Assignee: Surmodics, Inc.
    Inventors: Aleksey V. Kurdyumov, Nathan A. Lockwood, Joram Slager, Dale G. Swan, Robert Hergenrother
  • Publication number: 20140200411
    Abstract: Disclosed herein are activatable conductive compositions and methods of making and using activatable conductive compositions. In particular, activatable conductive monomers polymers are described and electrically conductive coatings that include activatable conductive polymers.
    Type: Application
    Filed: January 10, 2014
    Publication date: July 17, 2014
    Applicant: SurModics, Inc.
    Inventors: Bruce M. Jelle, Aleksey V. Kurdyumov, Joseph Schmidt McGonigle, Robert W. Hergenrother, Nathan A. Lockwood, Joseph Ventura, Sean M. Stucke
  • Publication number: 20140180229
    Abstract: Embodiments of the invention include wound packing devices and methods of making and using the same. In an embodiment, the invention includes a wound packing device including a plurality of spacing elements capable of absorbing exudate, wherein the surface of the spacing elements resist colonization by microorganisms. The wound packing device can also include a connector connecting the plurality of spacing elements to one another. Other embodiments are also included herein.
    Type: Application
    Filed: October 16, 2013
    Publication date: June 26, 2014
    Inventors: Shawn Fuller, Bryan A. Claseman, Joram Slager, Jeffrey J. Missling, Gary Maharaj, Gary W. Opperman, Nathan Lockwood, Robert W. Hergenrother, Charles Olson
  • Publication number: 20140162083
    Abstract: The invention is directed to latent reactive and polymerizable derivatives of fluorescent stilbene-based compounds. The compounds can be used to provide articles with a fluorescence property, such as medical devices (e.g., catheters). The fluorescent compounds can be used in association with polymers, or can be incorporated into polymers, and the polymers used in a coating composition on the article surface. The compounds allow for visual or machine inspection of coating properties such as uniformity of coverage.
    Type: Application
    Filed: December 12, 2013
    Publication date: June 12, 2014
    Applicant: SurModics, Inc.
    Inventors: Aleksey V. Kurdyumov, Dale G. Swan, Nathan A. Lockwood, Bruce M. Jelle
  • Patent number: 8697106
    Abstract: A wound spacer device comprising multiple beads connected by non-absorbable suture material is disclosed. The device can be applied, for example, by a first responder to an injured individual, or can be applied by a trauma treatment facility, such as a Level 2 medical unit. In typical embodiments the device allows for site-specific controlled elution of an antimicrobial agent, such as Tobramycin, including defined elution over a period of time, such as 48 or 72 hours.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: April 15, 2014
    Assignee: SurModics, Inc.
    Inventors: Tim M. Kloke, Steven J. Keough, Nathan Lockwood, Margaret R. Gardner, Robert W. Hergenrother, Ralph A. Chappa
  • Patent number: 8685421
    Abstract: A wound spacer device comprising multiple beads connected by non-absorbable suture material is disclosed. The device can be applied, for example, by a first responder to an injured individual, or can be applied by a trauma treatment facility, such as a Level 2 medical unit. In typical embodiments the device allows for site-specific controlled elution of an antimicrobial agent, such as Tobramycin, including defined elution over a period of time, such as 48 or 72 hours.
    Type: Grant
    Filed: July 6, 2007
    Date of Patent: April 1, 2014
    Assignee: SurModics, Inc.
    Inventors: Tim M. Kloke, Steven J. Keough, Nathan Lockwood, Margaret R. Gardner, Robert W. Hergenrother, Ralph A. Chappa
  • Publication number: 20130261566
    Abstract: The invention is directed to medical device coatings, such as coated guidewires and catheters, containing a visualization moiety providing color to the coating in ambient or applied light. The coating allows for visual or machine inspection of coating properties such as uniformity of coverage. In some embodiments the coatings include the visualization moiety and an activated UV photogroup, which is used to provide covalent bonding in the coating. The visualization moiety can be in particulate form and entrained in the coating, or can be covalently bonded to the hydrophilic polymer backbone. In other embodiments the visualization moiety includes a stilbene chemical group. Exemplary coatings include a hydrophilic vinyl pyrrolidone polymer, which can provide lubricity to the device surface, along with the colored properties.
    Type: Application
    Filed: April 2, 2013
    Publication date: October 3, 2013
    Applicant: SurModics, Inc.
    Inventors: Nathan A. Lockwood, Bruce M. Jelle, Aleksey V. Kurdyumov
  • Publication number: 20130085718
    Abstract: Methods, systems, and apparatus, including computer programs encoded on a system, for generating an analytical energy model from a conceptual representation or a mass form model.
    Type: Application
    Filed: September 30, 2011
    Publication date: April 4, 2013
    Inventors: Kyle Bernhardt, Lillian M. Smith, Jack Conrad Gray, Nathan Lockwood
  • Publication number: 20120021038
    Abstract: A wound spacer device comprising multiple beads connected by non-absorbable suture material is disclosed. The device can be applied, for example, by a first responder to an injured individual, or can be applied by a trauma treatment facility, such as a Level 2 medical unit. In typical embodiments the device allows for site-specific controlled elution of an antimicrobial agent, such as Tobramycin, including defined elution over a period of time, such as 48 or 72 hours.
    Type: Application
    Filed: September 23, 2011
    Publication date: January 26, 2012
    Applicant: Surmodics, Inc.
    Inventors: Tim M. Kloke, Steven J. Keough, Nathan Lockwood, Margaret R. Gardner, Robert W. Hergenrother, Ralph A. Chappa
  • Patent number: 8097457
    Abstract: The present invention is directed to liquid crystalline substrates useful in the culture of cells and methods of their use. In certain embodiments, the invention provides methods and devices for imaging changes (e.g., reorganization) of extracellular matrix components by living cells.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: January 17, 2012
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Nicholas L. Abbott, Jeffrey C. Mohr, Christopher J. Murphy, Elise Huang, Juan J. DePablo, Nathan A. Lockwood, Sean P. Palecek
  • Patent number: 8062853
    Abstract: The present invention is directed to methods for providing a polyelectrolyte multilayer film at a liquid-liquid interface. Such methods include steps of sequentially-depositing layers of cationic and anionic polyelectrolytes at a liquid-liquid interface that is formed between immiscible first and second liquids whereby a polyelectrolyte multilayer film is provided at the liquid-liquid interface. In certain preferred embodiments, the first liquid is an aqueous solution and the second liquid is a liquid crystal. In alternative embodiments, the first liquid is an aqueous solution and the second liquid is an oil. The invention further encompasses polyelectrolyte multilayer films provided by the disclosed methods as well as applications utilizing such materials.
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: November 22, 2011
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Nicholas Abbott, Nathan A. Lockwood, Katie D. Cadwell, Frank Caruso, Elvira Tjipto
  • Publication number: 20110195498
    Abstract: The present invention is directed to liquid crystalline substrates useful in the culture of cells and methods of their use. In certain embodiments, the invention provides methods and devices for imaging changes (e.g., reorganization) of extracellular matrix components by living cells.
    Type: Application
    Filed: April 13, 2011
    Publication date: August 11, 2011
    Applicant: Wisconsin Alumni Research Foundation
    Inventors: Nicholas L. Abbott, Jeffrey C. Mohr, Christopher J. Murphy, Elise Huang, Juan J. De Pablo, Sean P. Palecek, Nathan A. Lockwood
  • Publication number: 20110159072
    Abstract: A biocompatible polymeric controlled release matrix for delivery of one or more bioactive agents from an implantable medical device is described. In one embodiment, the polymeric controlled release matrix is a complaint film that includes one or more compliant biocompatible polymers and one or more bioactive agents. In another embodiment, the polymeric controlled release matrix is an elastomeric collar that includes one or more elastomeric biocompatible polymers and one or more bioactive agents.
    Type: Application
    Filed: December 29, 2010
    Publication date: June 30, 2011
    Applicant: SurModics, Inc.
    Inventors: Jeffrey J. Missling, Nathan Lockwood, Kevin W. Burton, Beth A. Petersen