Patents by Inventor Nadya Belcheva

Nadya Belcheva 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: 20100174299
    Abstract: A method of gastric reduction is disclosed that includes the steps of: inserting an oral-gastric device into the interior volume of the stomach of a subject; and inserting through the esophagus at least one barbed suture in proximity to the muscularis of the stomach of a subject. The barbed suture has a first end having a pointed configuration, and a second end. The muscularis comprise at least first and second surfaces that are in at least partially interfacing relationship to one another in the interior volume. The method also includes inserting the first and/or the second end of the barbed suture through the muscularis to form at least first and second pull regions; and pulling the ends to cause the first pull region to move the first surface towards the interior volume and to cause the second pull region to move the second surface towards the interior volume.
    Type: Application
    Filed: December 9, 2009
    Publication date: July 8, 2010
    Inventors: Frank Viola, Nadya Belcheva
  • 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: 20100092530
    Abstract: Novel silver-triclosan salts are provided which have antimicrobial properties and may be used as pharmaceutical compositions or to treat articles such as medical devices, packaging materials, and textiles.
    Type: Application
    Filed: September 20, 2007
    Publication date: April 15, 2010
    Inventors: Joshua B. Stopek, Brian Cuevas, Nadya Belcheva
  • 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
  • Publication number: 20100010159
    Abstract: The present disclosure relates to crosslinked polymer compositions comprising an inclusion complex functionalized with one or more reactive groups and a polymer functionalized with one or more complimentary reactive groups.
    Type: Application
    Filed: June 29, 2009
    Publication date: January 14, 2010
    Inventor: Nadya Belcheva
  • Publication number: 20100004471
    Abstract: The present disclosure provides methods for purifying p-dioxanone. In embodiments, crude p-dioxanone may be contacted with at least one isocyanate-functionalized scavenger. The at least one isocyanate-functionalized scavenger may react with hydroxyl compounds present with the crude p-dioxanone to form reaction products, in embodiments polyurethanes and/or polyureas, which may then be removed. The p-dioxanone thus obtained is of greater purity than the starting crude p-dioxanone.
    Type: Application
    Filed: June 9, 2009
    Publication date: January 7, 2010
    Inventors: Nadya Belcheva, Trang Huynh, Darlene Nebinger, Ronald Rutka
  • Publication number: 20090312572
    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: December 17, 2009
    Inventors: Ahmad R. Hadba, Walter Skalla, Nadya Belcheva
  • Publication number: 20090247651
    Abstract: The present disclosure provides compositions which may be utilized as adhesives or sealants in medical and surgical applications. The compositions may, in embodiments, be formed from the cycloaddition reaction of a first component possessing at least one azide group with a second component possessing at least one alkyne group.
    Type: Application
    Filed: February 10, 2009
    Publication date: October 1, 2009
    Inventors: Mbiya Kapiamba, Nadya Belcheva
  • Publication number: 20090177226
    Abstract: Compounds are provided which can form bioabsorbable compositions useful as adhesives or sealants for medical/surgical applications.
    Type: Application
    Filed: January 9, 2009
    Publication date: July 9, 2009
    Inventors: Jon Reinprecht, Nadya Belcheva, Ahmad Robert Hadba, Ferass Abuzaina
  • Publication number: 20090127195
    Abstract: Methods are provided for isolating and purifying components useful, either alone or in combination with other components, as adhesives or sealants for medical/surgical applications.
    Type: Application
    Filed: October 30, 2008
    Publication date: May 21, 2009
    Inventors: Allison Foss Calabrese, Walter Skalla, Nadya Belcheva
  • Publication number: 20090118658
    Abstract: A kit for storing and applying an adhesive removing device comprising an enclosure which includes a base portion and a removable top layer releasably secured to the base portion; an adhesive removing device including at least one wiping mechanism which includes at least one absorbent portion; and a biocompatible composition including a solvent and a moisturizing agent embedded in the absorbent portion of the wiping mechanism. A method for storing and applying an adhesive removing device comprises a series of steps for using the adhesive removing device to remove an adhesive from a surface.
    Type: Application
    Filed: June 29, 2007
    Publication date: May 7, 2009
    Inventors: Danyel J. Tarinelli, Ahmad R. Hadba, Nadya Belcheva
  • Publication number: 20080279807
    Abstract: Novel biodegradable phosphoester polyamines are disclosed. The biodegradable phosphoester polyamines may be utilized as cross-linkers for sprayable compositions which may be used as tissue adhesives or sealants.
    Type: Application
    Filed: February 22, 2007
    Publication date: November 13, 2008
    Inventors: Nadya Belcheva, Ahmad R. Hadba
  • Publication number: 20070224162
    Abstract: The present disclosure is directed to polymers having hydroxyl containing bioactive agents incorporated into the backbone of the polymer or attached thereto by pendant linkages. Hydroxyl containing bioactive agents which may be attached to these polymers include antimicrobial agents such as triclosan. The polymers may be utilized to form medical devices or coatings for such devices. The hydroxyl containing bioactive agent may be released from the polymer upon hydrolysis of the polymeric backbone or pendant linkage in vivo.
    Type: Application
    Filed: February 28, 2007
    Publication date: September 27, 2007
    Inventors: Mark Roby, John Kennedy, Joshua Stopek, Brian Cuevas, Nadya Belcheva
  • Publication number: 20070207189
    Abstract: Antimicrobial medical devices are prepared with a complexed antimicrobial agent which enhances the adherence of the antimicrobial agent to the medical device.
    Type: Application
    Filed: February 28, 2007
    Publication date: September 6, 2007
    Inventors: Nadya Belcheva, John Kennedy
  • Publication number: 20070135566
    Abstract: The present disclosure provides sprayable compositions having reduced viscosity which may be used as adhesives or tissue sealants.
    Type: Application
    Filed: December 8, 2006
    Publication date: June 14, 2007
    Inventors: Nadya Belcheva, Ahmad Hadba
  • Publication number: 20070135606
    Abstract: Biocompatible compositions are provided including a first polymer component including an isocyanate-functional polyalkylene oxide combined with at least one multi-isocyanate functional polyether-polyurethane, and a second component including at least one diamine.
    Type: Application
    Filed: December 8, 2006
    Publication date: June 14, 2007
    Inventors: Nadya Belcheva, Ahmad Hadba
  • Publication number: 20070135605
    Abstract: Biocompatible macromer compositions are provided including an isocyanate-functional polyalkylene oxide combined with at least one multi-functional isocyanate as a first component, and a multi-amino functional compound possessing multiple primary amines as a second component. The isocyanate-functional polyalkylene oxide has pendant polyalkylene oxide groups. The resulting biocompatible macromer composition can be employed as an adhesive or sealant for medical/surgical uses.
    Type: Application
    Filed: December 8, 2006
    Publication date: June 14, 2007
    Inventors: Ahmad Hadba, Nadya Belcheva
  • Publication number: 20070128154
    Abstract: Bioabsorbable macromer compositions are provided including a diisocyanate-functional bioabsorbable polymer. In some embodiments, the diisocyanate-functional bioabsorbable polymer can be combined with a functionalized polyol. The resulting bioabsorbable macromer composition can be employed as an adhesive or sealant for medical/surgical uses.
    Type: Application
    Filed: December 6, 2006
    Publication date: June 7, 2007
    Inventors: Ahmad Hadba, Nadya Belcheva
  • Publication number: 20070128152
    Abstract: The disclosure relates to compositions for medical/surgical synthetic adhesives and sealants. Adhesive compositions include a functionalized triol and functionalized diol, while sealant compositions further include a multifunctionalized polyol and at least one amine cross linker.
    Type: Application
    Filed: December 6, 2006
    Publication date: June 7, 2007
    Inventors: Ahmad Hadba, Nadya Belcheva
  • Publication number: 20070129505
    Abstract: Flowable bioabsorbable compounds are provided which are useful in producing surgical adhesive or sealant compositions.
    Type: Application
    Filed: December 6, 2006
    Publication date: June 7, 2007
    Inventors: Ahmad Hadba, John Kennedy, Nadya Belcheva, Jon Reinprecht, Sajida Faroogi