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).

  • Patent number: 8754564
    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 31, 2011
    Date of Patent: June 17, 2014
    Assignee: Covidien LP
    Inventors: Steven Bennett, Nathaniel Mast, Kevin Lavigne, Walter Skalla, Timothy Sargeant, Joshua Stopek
  • Patent number: 8748558
    Abstract: Methods for producing biocompatible compositions are provided. The biocompatible compositions include an aliphatic polyester macromer produced without the use of solvents or catalysts. The resulting aliphatic polyester macromer may be reacted with a polyisocyanate to form an end-capped aliphatic polyester macromer which, in turn, may be reacted with a polyol to produce a polyurethane. The polyurethane, in turn, may be reacted with a second polyisocyanate to produce an isocyanate-functional polyurethane. The compositions prepared by the methods of the present disclosure may be used as adhesives or sealants for medical/surgical uses.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: June 10, 2014
    Assignee: Covidien LP
    Inventors: Walter Skalla, Allison Calabrese, Ahmad R. Hadba, Nadya Belcheva
  • Patent number: 8734930
    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 31, 2011
    Date of Patent: May 27, 2014
    Assignee: Covidien LP
    Inventors: Steven Bennett, Nathaniel Mast, Kevin Lavigne, Walter Skalla, Timothy Sargeant, Joshua Stopek, Saumya Banerjee, Arpan Desai
  • Patent number: 8734824
    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: May 27, 2014
    Assignee: Covidien LLP
    Inventors: Steven Bennett, Nathaniel Mast, Kevin Lavigne, Walter Skalla
  • Patent number: 8591929
    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 26, 2013
    Assignee: Covidien LP
    Inventors: Steven Bennett, Nathaniel Mast, Kevin Lavigne, Walter Skalla
  • Patent number: 8591950
    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 26, 2013
    Assignee: Covidien LP
    Inventors: Steven Bennett, Nathaniel Mast, Kevin Lavigne, Walter Skalla, Timothy Sargeant, Joshua Stopek
  • Patent number: 8470355
    Abstract: The present disclosure relates to implants including a porous substrate, a first hydrogel precursor, a second hydrogel precursor and a mesh. The first and second hydrogel precursors are applied to the porous substrate. The mesh has a first portion in contact with the porous substrate and a second portion exposed for tissue contact.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: June 25, 2013
    Assignee: Covidien LP
    Inventors: Walter Skalla, Nathaniel Mast
  • Publication number: 20120064299
    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 31, 2011
    Publication date: March 15, 2012
    Inventors: Steven Bennett, Nathaniel Mast, Kevin Lavigne, Walter Skalla, Timothy Sargeant, Joshua Stopek
  • Publication number: 20120049689
    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 31, 2011
    Publication date: March 1, 2012
    Inventors: Steven Bennett, Nathaniel Mast, Kevin Lavigne, Walter Skalla, Timothy Sargeant, Joshua Stopek, Saumya Banerjee, Arpan Desai
  • Publication number: 20110293688
    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 24, 2011
    Publication date: December 1, 2011
    Inventors: Steven Bennett, Nathaniel Mast, Kevin Lavigne, Walter Skalla
  • Publication number: 20110293692
    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 24, 2011
    Publication date: December 1, 2011
    Inventors: Steven Bennett, Nathaniel Mast, Kevin Lavigne, Walter Skalla
  • Publication number: 20110293699
    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 24, 2011
    Publication date: December 1, 2011
    Inventors: Steven Bennett, Nathaniel Mast, Kevin Lavigne, Walter Skalla, Timothy Sargeant, Joshua Stopek
  • Publication number: 20110293687
    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 24, 2011
    Publication date: December 1, 2011
    Inventors: Steven Bennett, Nathaniel Mast, Kevin Lavigne, Walter Skalla, Saumya Banerjee, Timothy Sargeant, Joshua Stopek
  • Publication number: 20110293669
    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 24, 2011
    Publication date: December 1, 2011
    Inventors: Steven Bennett, Nathaniel Mast, Kevin Lavigne, Walter Skalla
  • Patent number: 8044234
    Abstract: Compounds are provided which can form bioabsorbable compositions useful as adhesives or sealants for medical/surgical applications. In embodiments, suitable compositions may possess various functional groups, including groups derived from multifunctional compounds, aliphatic or aromatic groups, groups derived from aliphatic diacids, groups derived from a dihydroxy compound, and combinations thereof. Methods for forming these compositions, as well as uses thereof, are also provided.
    Type: Grant
    Filed: May 5, 2005
    Date of Patent: October 25, 2011
    Assignee: Tyco Healthcare Group LP
    Inventors: Ahmad R. Hadba, Walter Skalla, Nadya Belcheva
  • Publication number: 20110081397
    Abstract: The present disclosure relates to implants including a porous substrate, a first hydrogel precursor, a second hydrogel precursor and a mesh. The first and second hydrogel precursors are applied to the porous substrate. The mesh has a first portion in contact with the porous substrate and a second portion exposed for tissue contact.
    Type: Application
    Filed: September 22, 2010
    Publication date: April 7, 2011
    Applicant: TYCO HEALTHCARE GROUP LP
    Inventors: Walter Skalla, Nathaniel Mast
  • Publication number: 20100298870
    Abstract: The present disclosure provides absorbable surgical fasteners.
    Type: Application
    Filed: August 2, 2010
    Publication date: November 25, 2010
    Applicant: TYCO HEALTHCARE GROUP LP
    Inventors: Ahmad R. Hadba, Walter Skalla
  • Publication number: 20100130717
    Abstract: Methods for producing biocompatible compositions are provided. The biocompatible compositions include an aliphatic polyester macromer produced without the use of solvents or catalysts. The resulting aliphatic polyester macromer may be reacted with a polyisocyanate to form an end-capped aliphatic polyester macromer which, in turn, may be reacted with a polyol to produce a polyurethane. The polyurethane, in turn, may be reacted with a second polyisocyanate to produce an isocyanate-functional polyurethane. The compositions prepared by the methods of the present disclosure may be used as adhesives or sealants for medical/surgical uses.
    Type: Application
    Filed: April 21, 2008
    Publication date: May 27, 2010
    Inventors: Walter Skalla, Allison Calabrese, Ahmad R. Hadba, Nadya Belcheva
  • Publication number: 20100100124
    Abstract: Compounds are provided which can form bioabsorbable compositions useful as adhesives and/or sealants for medical/surgical applications.
    Type: Application
    Filed: October 20, 2009
    Publication date: April 22, 2010
    Applicant: TYCO HEALTHCARE GROUP LP
    Inventors: Allison Calabrese, Walter Skalla
  • Publication number: 20100048946
    Abstract: Compounds are provided which can form bioabsorbable compositions useful as adhesives or sealants for medical/surgical applications.
    Type: Application
    Filed: August 20, 2009
    Publication date: February 25, 2010
    Inventors: Ahmad R. Hadba, Walter Skalla, Nadya Belcheva