Patents by Inventor Walter Skalla

Walter Skalla 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: 20230028641
    Abstract: A biodegradable triblock copolymer comprising: an A-B-A? structure wherein the A and A? blocks each include polylactide, the B block includes from about 55 to about 100 mole percent of polytrimethylene carbonate and 0 to about 45 mole percent polylactide, and the biodegradable triblock copolymer overall includes from about 15 to about 25 mole percent of the polytrimethylene carbonate and from about 75 to about 85 mole percent of the polylactide. Also provided are compositions and implantable medical devices made therefrom.
    Type: Application
    Filed: September 20, 2022
    Publication date: January 26, 2023
    Inventors: Walter Skalla, Jonathan Thomas, Thierry Brune, Darlene P. Nebinger, Seth S. Gleiman, Robert Vestberg
  • Patent number: 11447602
    Abstract: A biodegradable triblock copolymer comprising: an A-B-A? structure wherein the A and A? blocks each include polylactide, the B block includes from about 55 to about 100 mole percent of polytrimethylene carbonate and 0 to about 45 mole percent polylactide, and the biodegradable triblock copolymer overall includes from about 15 to about 25 mole percent of the polytrimethylene carbonate and from about 75 to about 85 mole percent of the polylactide. Also provided are compositions and implantable medical devices made therefrom.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: September 20, 2022
    Assignees: SOFRADIM PRODUCTION, COVIDIEN LP
    Inventors: Walter Skalla, Jonathan Thomas, Thierry Brune, Darlene P. Nebinger, Seth S. Gleiman, Robert Vestberg
  • Patent number: 11382731
    Abstract: The present disclosure relates to a medical device and methods of using the same. In embodiments, the medical device may be a buttress formed of nucleophilic buttress components and electrophilic buttress components which react to both form the buttress and provide the buttress with self-sealing capabilities after a staple or some other fixation device is placed therethrough, thereby enhancing its hemostatic properties. In other embodiments, the medical device is a hernia patch formed of a fibrous substrate, nucleophilic precursor components and electrophilic precursor components.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: July 12, 2022
    Assignee: Covidien LP
    Inventors: Walter Skalla, Lauren Vernlund
  • Publication number: 20200095374
    Abstract: A biodegradable triblock copolymer comprising: an A-B-A? structure wherein the A and A? blocks each include polylactide, the B block includes from about 55 to about 100 mole percent of polytrimethylene carbonate and 0 to about 45 mole percent polylactide, and the biodegradable triblock copolymer overall includes from about 15 to about 25 mole percent of the polytrimethylene carbonate and from about 75 to about 85 mole percent of the polylactide. Also provided are compositions and implantable medical devices made therefrom.
    Type: Application
    Filed: September 25, 2019
    Publication date: March 26, 2020
    Inventors: Walter Skalla, Jonathan Thomas, Thierry Brune, Darlene P. Nebinger, Seth S. Gleiman, Robert Vestberg
  • Patent number: 9872935
    Abstract: The present disclosure relates to a hydrogel composition and methods of using the same. The hydrogel composition may include precursors that react with each other upon contact as well as precursors that react upon contact with an initiator. In embodiments, the resulting hydrogels may have varying levels of crosslinking with both denser and less dense regions.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: January 23, 2018
    Assignee: Covidien LP
    Inventors: Steven Bennett, Nathaniel Mast, Kevin Lavigne, Walter Skalla
  • Patent number: 9707315
    Abstract: The present disclosure relates to a hydrogel composition and methods of using the same. The hydrogel composition may include precursors that react with each other upon contact as well as precursors that react upon contact with an initiator. In embodiments, the resulting hydrogels may have varying levels of crosslinking with both denser and less dense regions.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: July 18, 2017
    Assignee: Covidien LP
    Inventors: Steven Bennett, Nathaniel Mast, Kevin Lavigne, Walter Skalla, Saumya Banerjee, Timothy Sargeant, Joshua Stopek
  • Publication number: 20160310633
    Abstract: The present disclosure relates to compositions suitable for use as medical devices and/or coatings thereon. In embodiments, the compositions may be used to adhere and/or seal tissue. In other embodiments, coatings may be used to at least temporarily affix a medical device to tissue. The coatings may affix a medical device to tissue without the need for additional fixation devices or, in embodiments, may be used with other fixation devices to affix a medical device to tissue.
    Type: Application
    Filed: March 17, 2016
    Publication date: October 27, 2016
    Inventors: Lauren Vernlund, Walter Skalla, Nathaniel Mast, Steven L. Bennett
  • Patent number: 9468684
    Abstract: The present disclosure relates to a hydrogel composition and methods of using the same. The hydrogel composition may include precursors that react with each other upon contact as well as precursors that react upon contact with an initiator. In embodiments, the resulting hydrogels may have varying levels of crosslinking with both denser and less dense regions.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: October 18, 2016
    Assignee: Covidien LP
    Inventors: Steven Bennett, Nathaniel Mast, Kevin Lavigne, Walter Skalla
  • Publication number: 20160250013
    Abstract: The present disclosure relates to a medical device and methods of using the same. In embodiments, the medical device may be a buttress formed of nucleophilic buttress components and electrophilic buttress components which react to both form the buttress and provide the buttress with self-sealing capabilities after a staple or some other fixation device is placed therethrough, thereby enhancing its hemostatic properties. In other embodiments, the medical device is a hernia patch formed of a fibrous substrate, nucleophilic precursor components and electrophilic precursor components.
    Type: Application
    Filed: February 19, 2016
    Publication date: September 1, 2016
    Inventors: Walter Skalla, Lauren Vernlund
  • Publication number: 20160089472
    Abstract: The present disclosure relates to a hydrogel composition and methods of using the same. The hydrogel composition may include precursors that react with each other upon contact as well as precursors that react upon contact with an initiator. In embodiments, the resulting hydrogels may have varying levels of crosslinking with both denser and less dense regions.
    Type: Application
    Filed: December 7, 2015
    Publication date: March 31, 2016
    Inventors: Steven Bennett, Nathaniel Mast, Kevin Lavigne, Walter Skalla
  • Patent number: 9265828
    Abstract: The present disclosure relates to a hydrogel composition and methods of using the same. The hydrogel composition may include precursors that react with each other upon contact as well as precursors that react upon contact with an initiator. In embodiments, the resulting hydrogels may have varying levels of crosslinking with both denser and less dense regions.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: February 23, 2016
    Assignee: Covidien LP
    Inventors: Steven Bennett, Nathaniel Mast, Kevin Lavigne, Walter Skalla, Timothy Sargeant, Joshua Stopek
  • Publication number: 20150359927
    Abstract: The present disclosure relates to a hydrogel composition and methods of using the same. The hydrogel composition may include precursors that react with each other upon contact as well as precursors that react upon contact with an initiator. In embodiments, the resulting hydrogels may have varying levels of crosslinking with both denser and less dense regions.
    Type: Application
    Filed: August 26, 2015
    Publication date: December 17, 2015
    Inventors: Steven Bennett, Nathaniel Mast, Kevin Lavigne, Walter Skalla, Saumya Banerjee, Timothy Sargeant, Joshua Stopek
  • Patent number: 9144611
    Abstract: The present disclosure relates to a hydrogel composition and methods of using the same. The hydrogel composition may include precursors that react with each other upon contact as well as precursors that react upon contact with an initiator. In embodiments, the resulting hydrogels may have varying levels of crosslinking with both denser and less dense regions.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: September 29, 2015
    Assignee: Covidien LP
    Inventors: Steven Bennett, Nathaniel Mast, Kevin Lavigne, Walter Skalla, Saumya Banerjee, Timothy Sargeant, Joshua Stopek
  • Publication number: 20150150977
    Abstract: The present disclosure relates to a hydrogel composition and methods of using the same. The hydrogel composition may include precursors that react with each other upon contact as well as precursors that react upon contact with an initiator. In embodiments, the resulting hydrogels may have varying levels of crosslinking with both denser and less dense regions.
    Type: Application
    Filed: February 5, 2015
    Publication date: June 4, 2015
    Inventors: Steven Bennett, Nathaniel Mast, Kevin Lavigne, Walter Skalla
  • Patent number: 8968783
    Abstract: The present disclosure relates to a hydrogel composition and methods of using the same. The hydrogel composition may include precursors that react with each other upon contact as well as precursors that react upon contact with an initiator. In embodiments, the resulting hydrogels may have varying levels of crosslinking with both denser and less dense regions.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: March 3, 2015
    Assignee: Covidien LP
    Inventors: Steven Bennett, Nathaniel Mast, Kevin Lavigne, Walter Skalla
  • Publication number: 20150024022
    Abstract: The present disclosure relates to a hydrogel composition and methods of using the same. The hydrogel composition may include precursors that react with each other upon contact as well as precursors that react upon contact with an initiator. In embodiments, the resulting hydrogels may have varying levels of crosslinking with both denser and less dense regions.
    Type: Application
    Filed: October 7, 2014
    Publication date: January 22, 2015
    Inventors: Steven Bennett, Nathaniel Mast, Kevin Lavigne, Walter Skalla, Saumya Banerjee, Timothy Sargeant, Joshua Stopek
  • Patent number: 8883185
    Abstract: The present disclosure relates to a hydrogel composition and methods of using the same. The hydrogel composition may include precursors that react with each other upon contact as well as precursors that react upon contact with an initiator. In embodiments, the resulting hydrogels may have varying levels of crosslinking with both denser and less dense regions.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: November 11, 2014
    Assignee: Covidien LP
    Inventors: Steven Bennett, Nathaniel Mast, Kevin Lavigne, Walter Skalla, Saumya Banerjee, Timothy Sargeant, Joshua Stopek
  • Publication number: 20140242024
    Abstract: The present disclosure relates to a hydrogel composition and methods of using the same. The hydrogel composition may include precursors that react with each other upon contact as well as precursors that react upon contact with an initiator. In embodiments, the resulting hydrogels may have varying levels of crosslinking with both denser and less dense regions.
    Type: Application
    Filed: May 8, 2014
    Publication date: August 28, 2014
    Applicant: Covidien LP
    Inventors: Steven Bennett, Nathaniel Mast, Kevin Lavigne, Walter Skalla, Timothy Sargeant, Joshua Stopek
  • Publication number: 20140228453
    Abstract: The present disclosure relates to a hydrogel composition and methods of using the same. The hydrogel composition may include precursors that react with each other upon contact as well as precursors that react upon contact with an initiator. In embodiments, the resulting hydrogels may have varying levels of crosslinking with both denser and less dense regions.
    Type: Application
    Filed: April 16, 2014
    Publication date: August 14, 2014
    Applicant: Covidien LP
    Inventors: Steven Bennett, Nathaniel Mast, Kevin Lavigne, Walter Skalla
  • Publication number: 20140209658
    Abstract: A surgical stapling apparatus includes a cartridge assembly, an anvil assembly, a surgical buttress, and a low molecular weight bioabsorbable adhesive. The cartridge assembly includes a plurality of staples and a tissue contacting surface defining staple retaining slots. The anvil assembly includes a tissue contacting surface defining staple pockets for forming staples expelled from the staple retaining slots of the cartridge assembly. The surgical buttress is disposed on at least one of the tissue contacting surfaces of the cartridge assembly and the anvil assembly. The low molecular weight bioabsorbable adhesive releasably retains the surgical buttress on the at least one of the tissue contacting surfaces of the cartridge assembly and the anvil assembly.
    Type: Application
    Filed: December 19, 2013
    Publication date: July 31, 2014
    Applicant: Covidien LP
    Inventors: Walter Skalla, Steven L. Bennett, Danyel Racenet