Patents by Inventor Sasa Andjelic

Sasa Andjelic 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: 20130236499
    Abstract: Novel semi-crystalline, segmented copolymers of lactide and epsilon-caprolactone exhibiting long term absorption characteristics are disclosed. The novel polymer compositions are useful for long term absorbable meshes, surgical sutures, especially monofilament sutures, and other medical devices.
    Type: Application
    Filed: March 12, 2012
    Publication date: September 12, 2013
    Inventors: Sasa Andjelic, Dennis D. Jamiolkowski
  • Patent number: 8455418
    Abstract: Provided are compositions comprising one or more compounds having a structure comprising a node structure with from four to twelve carbon atoms, one or more (poly)glyceryl groups, and one or more hydrophobic moieties, wherein each of the one or more (poly)glyceryl groups is linked to the node structure by a first primary linking group, the one or more hydrophobic moieties are each independently linked either to the node structure by a primary linking group or to one of the (poly)glyceryl groups by a secondary linking group, and wherein the polyglyceryl thickener has an average degree of glyceryl polymerization of from greater than 3 to less than about 11 and an average number of hydrophobic groups per primary linking group of about 0.35 or greater. Also provided are polyglyceryl compounds, compositions comprising water, a surfactant, and a polyglyceryl thickener, as well as, methods of making polyglyceryl compounds and compositions of the present invention.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: June 4, 2013
    Assignee: Johnson & Johnson Consumer Companies, Inc.
    Inventors: Sasa Andjelic, Modesto Erneta, Michael J. Fevola, Frank C. Sun
  • Patent number: 8450431
    Abstract: A bimodal bioabsorbable polymer composition. The composition includes a first amount of a bioabsorbable polymer polymerized so as to have a first molecular weight distribution; a second amount of said bioabsorbable polymer polymerized so as to have a second molecular weight distribution having a weight average molecular weight between about 10,000 to about 50,000 Daltons, the weight average molecular weight ratio of said first molecular weight distribution to said second molecular weight distribution is at least about two to one; wherein a substantially homogeneous blend of said first and second amounts of said bioabsorbable polymer is formed in a ratio of between about 50/50 to about 95/5 weight/weight percent. Also disclosed are a medical device, a method of making a medical device and a method of melt blowing a semi-crystalline polymer blend.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: May 28, 2013
    Assignee: Ethicon, Inc.
    Inventors: Sasa Andjelic, Benjamin D. Fitz
  • Patent number: 8440215
    Abstract: A co-polyester which includes the reaction product of a polycondensation polyester and epsilon-caprolactone, wherein the polycondensation polyester comprises the reaction product of diglycolic acid and/or a derivative thereof and a diol. The co-polyester is injectable and absorbable into animal, such as human, tissue and can be used for facial cosmetic or reconstructive surgery of soft tissue. Another embodiment is directed to a method for preventing adhesion using a co-polyester comprising the reaction product of a polycondensation polyester and epsilon-caprolactone, wherein the polycondensation polyester comprises the reaction product of diglycolic acid and/or a derivative thereof and a diol, and the co-polyester comprises about 40 to 50% by weight of the polycondensation polyester based on the total weight of the co-polyester.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: May 14, 2013
    Assignee: Ethicon, Inc.
    Inventors: Sasa Andjelic, Tara Zabrosky
  • Patent number: 8394755
    Abstract: Provided are compositions comprising one or more compounds having a structure comprising a node structure with from four to twelve carbon atoms, one or more (poly)glyceryl groups, and one or more hydrophobic moieties, wherein each of the one or more (poly)glyceryl groups is linked to the node structure by a first primary linking group, the one or more hydrophobic moieties are each independently linked either to the node structure by a primary linking group or to one of the (poly)glyceryl groups by a secondary linking group, and wherein the polyglyceryl thickener has an average degree of glyceryl polymerization of from greater than 3 to less than about 11 and an average number of hydrophobic groups per primary linking group of about 0.35 or greater. Also provided are polyglyceryl compounds, compositions comprising water, a surfactant, and a polyglyceryl thickener, as well as, methods of making polyglyceryl compounds and compositions of the present invention.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: March 12, 2013
    Assignee: Johnson & Johnson Consumer Companies, Inc.
    Inventors: Sasa Andjelic, Modesto Erneta, Michael J. Fevola, Frank C. Sun
  • Patent number: 8349354
    Abstract: The present invention is directed to a hemostatic composite structure having a bioabsorbable fabric or non-woven substrate having at least two major oppositely facing surface areas and a continuous non-porous polymer-based film that is laminated on one major surface of said substrate. The bioabsorbable fabric substrate can be an oxidized polysaccharide and/or the non-woven substrate can be made from bioabsorbable, non-cellulosic derived polymers. The continuous non-porous polymer based film can be a bioabsorbable polymer. The present invention also relates to a method for providing hemostasis by applying a composite structure described herein onto a wound site in need of a hemostatic device wherein a major surface of the substrate without the film layer is applied onto the wound site.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: January 8, 2013
    Assignee: Ethicon, Inc.
    Inventor: Sasa Andjelic
  • Publication number: 20130006349
    Abstract: Compositions and methods of using tissue engineered blood vessels to repair and regenerate blood vessels of patients with vascular disease are disclosed.
    Type: Application
    Filed: June 30, 2011
    Publication date: January 3, 2013
    Inventors: Iksoo Chun, Ziwei Wang, Kevin Cooper, Dennis Jamiolkowski, Modesto Erneta, Sasa Andjelic, Jianguo Jack Zhou
  • Publication number: 20130005829
    Abstract: Novel semi-crystalline, epsilon-caprolactone-rich block copolymers of epsilon-caprolactone and p-dioxanone for long term absorbable medical applications are disclosed. The novel polymer compositions are useful for long term absorbable surgical sutures, and other medical devices. Also disclosed are compositions and methods of using tissue engineered blood vessels to repair and regenerate blood vessels of patients with vascular disease.
    Type: Application
    Filed: October 14, 2011
    Publication date: January 3, 2013
    Applicant: Advanced Technologies and Regenerative Medicine, LLC.
    Inventors: Dennis D. Jamiolkowski, Sasa Andjelic, Modesto Erneta
  • Publication number: 20120302528
    Abstract: A bimodal bioabsorbable polymer composition. The composition includes a first amount of a bioabsorbable polymer polymerized so as to have a first molecular weight distribution; a second amount of said bioabsorbable polymer polymerized so as to have a second molecular weight distribution having a weight average molecular weight between about 10,000 to about 50,000 Daltons, the weight average molecular weight ratio of said first molecular weight distribution to said second molecular weight distribution is at least about two to one; wherein a substantially homogeneous blend of said first and second amounts of said bioabsorbable polymer is formed in a ratio of between about 50/50 to about 95/5 weight/weight percent. Also disclosed are a medical device, a method of making a medical device and a method of melt blowing a semi-crystalline polymer blend.
    Type: Application
    Filed: August 6, 2012
    Publication date: November 29, 2012
    Applicant: ETHICON, INC.
    Inventors: Sasa ANDJELIC, Benjamin D. FITZ, Jianguo Jack ZHOU
  • Patent number: 8278409
    Abstract: Copolymers exhibiting the following combinations of properties, including without limitation, ?-caprolactone in an amount ranging from about 12 to about 70 mole percent, glycolide in an amount ranging from about 30 to about 88 mole percent, crystallinity ranging from about 10 to about 50% as measured by WAXD or about 10 to about 50 J/g as measured by DSC, and an inherent viscosity ranging from about 0.5 to about 1.45 dL/g as measured in a 0.1 g/dl solution of HFIP at 25° C.; a method for melt blowing such copolymers and nonwoven constructs produced therefrom are described herein.
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: October 2, 2012
    Assignee: Ethicon, Inc.
    Inventors: Modesto Erneta, Dennis D. Jamiolkowski, Jianguo Jack Zhou, Sasa Andjelic
  • Patent number: 8236904
    Abstract: A bimodal bioabsorbable polymer composition. The composition includes a first amount of a bioabsorbable polymer polymerized so as to have a first molecular weight distribution; a second amount of said bioabsorbable polymer polymerized so as to have a second molecular weight distribution having a weight average molecular weight between about 10,000 to about 50,000 Daltons, the weight average molecular weight ratio of said first molecular weight distribution to said second molecular weight distribution is at least about two to one; wherein a substantially homogeneous blend of said first and second amounts of said bioabsorbable polymer is formed in a ratio of between about 50/50 to about 95/5 weight/weight percent. Also disclosed are a medical device, a method of making a medical device and a method of melt blowing a semi-crystalline polymer blend.
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: August 7, 2012
    Assignee: Ethicon, Inc.
    Inventors: Sasa Andjelic, Benjamin D. Fitz, Jianguo Jack Zhou
  • Patent number: 8211850
    Abstract: Provided are compositions comprising one or more compounds having a structure comprising a node structure with from four to twelve carbon atoms, one or more (poly)glyceryl groups, and one or more hydrophobic moieties, wherein each of the one or more (poly)glyceryl groups is linked to the node structure by a first primary linking group, the one or more hydrophobic moieties are each independently linked either to the node structure by a primary linking group or to one of the (poly)glyceryl groups by a secondary linking group, and wherein the polyglyceryl thickener has an average degree of glyceryl polymerization of from greater than 3 to less than about 11 and an average number of hydrophobic groups per primary linking group of about 0.35 or greater. Also provided are polyglyceryl compounds, compositions comprising water, a surfactant, and a polyglyceryl thickener, as well as, methods of making polyglyceryl compounds and compositions of the present invention.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: July 3, 2012
    Assignee: Johnson & Johnson Consumer Companies, Inc.
    Inventors: Sasa Andjelic, Modesto Erneta, Michael J. Fevola, Frank C. Sun
  • Publication number: 20120123104
    Abstract: Provided are compositions comprising one or more compounds having a structure comprising a node structure with from four to twelve carbon atoms, one or more (poly)glyceryl groups, and one or more hydrophobic moieties, wherein each of the one or more (poly)glyceryl groups is linked to the node structure by a first primary linking group, the one or more hydrophobic moieties are each independently linked either to the node structure by a primary linking group or to one of the (poly)glyceryl groups by a secondary linking group, and wherein the polyglyceryl thickener has an average degree of glyceryl polymerization of from greater than 3 to less than about 11 and an average number of hydrophobic groups per primary linking group of about 0.35 or greater. Also provided are polyglyceryl compounds, compositions comprising water, a surfactant, and a polyglyceryl thickener, as well as, methods of making polyglyceryl compounds and compositions of the present invention.
    Type: Application
    Filed: March 30, 2011
    Publication date: May 17, 2012
    Inventors: Sasa Andjelic, Modesto Erneta, Michael J. Fevola, Frank C. Sun
  • Publication number: 20120122755
    Abstract: Provided are compositions comprising one or more compounds having a structure comprising a node structure with from four to twelve carbon atoms, one or more (poly)glyceryl groups, and one or more hydrophobic moieties, wherein each of the one or more (poly)glyceryl groups is linked to the node structure by a first primary linking group, the one or more hydrophobic moieties are each independently linked either to the node structure by a primary linking group or to one of the (poly)glyceryl groups by a secondary linking group, and wherein the polyglyceryl thickener has an average degree of glyceryl polymerization of from greater than 3 to less than about 11 and an average number of hydrophobic groups per primary linking group of about 0.35 or greater. Also provided are polyglyceryl compounds, compositions comprising water, a surfactant, and a polyglyceryl thickener, as well as, methods of making polyglyceryl compounds and compositions of the present invention.
    Type: Application
    Filed: March 30, 2011
    Publication date: May 17, 2012
    Inventors: Sasa Andjelic, Modesto Erneta, Michael J. Fevola, Frank C. Sun
  • Publication number: 20120122758
    Abstract: Provided are compositions comprising one or more compounds having a structure comprising a node structure with from four to twelve carbon atoms, one or more (poly)glyceryl groups, and one or more hydrophobic moieties, wherein each of the one or more (poly)glyceryl groups is linked to the node structure by a first primary linking group, the one or more hydrophobic moieties are each independently linked either to the node structure by a primary linking group or to one of the (poly)glyceryl groups by a secondary linking group, and wherein the polyglyceryl thickener has an average degree of glyceryl polymerization of from greater than 3 to less than about 11 and an average number of hydrophobic groups per primary linking group of about 0.35 or greater. Also provided are polyglyceryl compounds, compositions comprising water, a surfactant, and a polyglyceryl thickener, as well as, methods of making polyglyceryl compounds and compositions of the present invention.
    Type: Application
    Filed: March 30, 2011
    Publication date: May 17, 2012
    Inventors: Sasa Andjelic, Modesto Erneta, Michael J. Fevola, Frank C. Sun
  • Publication number: 20120123103
    Abstract: Provided are compositions comprising one or more compounds having a structure comprising a node structure with from four to twelve carbon atoms, one or more (poly)glyceryl groups, and one or more hydrophobic moieties, wherein each of the one or more (poly)glyceryl groups is linked to the node structure by a first primary linking group, the one or more hydrophobic moieties are each independently linked either to the node structure by a primary linking group or to one of the (poly)glyceryl groups by a secondary linking group, and wherein the polyglyceryl thickener has an average degree of glyceryl polymerization of from greater than 3 to less than about 11 and an average number of hydrophobic groups per primary linking group of about 0.35 or greater. Also provided are polyglyceryl compounds, compositions comprising water, a surfactant, and a polyglyceryl thickener, as well as, methods of making polyglyceryl compounds and compositions of the present invention.
    Type: Application
    Filed: March 30, 2011
    Publication date: May 17, 2012
    Inventors: Sasa Andjelic, Modesto Erneta, Michael J. Fevola, Frank C. Sun
  • Patent number: 7968656
    Abstract: A semi-crystalline, absorbable copolyester composition comprising the reaction product of a polycondensation polyester and at least one lactone, wherein the polycondensation polyester comprises the reaction product of diglycolic acid and/or a derivative thereof and diethylene glycol; and the copolyester comprises about 30 to 60% by weight of the polycondensation polyester based on the total weight of the copolyester. Also medical devices such as absorbable sutures comprising such copolyesters and absorbable microspheres comprising such copolyesters and methods of making of such absorbable microspheres. Additionally, a method of melt blowing an absorbable copolyester composition and a nonwoven construct are disclosed.
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: June 28, 2011
    Assignee: Ethicon, Inc.
    Inventors: Sasa Andjelic, Jiango Jack Zhou, Modesto Erneta, Michel Gensini
  • Publication number: 20110104227
    Abstract: The present invention is directed to absorbable polyether esters that have been found to reduce bacterial adhesion to materials such as medical devices and implants. More specifically, the invention is directed to novel amorphous co-polymers comprising polyethylene diglycolate (PEDG) copolymerized with lactide-rich monomers.
    Type: Application
    Filed: October 30, 2009
    Publication date: May 5, 2011
    Inventors: Sasa Andjelic, Joerg Priewe
  • Publication number: 20110070288
    Abstract: The present invention is directed to a hemostatic composite structure having a bioabsorbable fabric or non-woven substrate having at least two major oppositely facing surface areas and a continuous non-porous polymer-based film that is laminated on one major surface of said substrate. The bioabsorbable fabric substrate can be an oxidized polysaccharide and/or the non-woven substrate can be made from bioabsorbable, non-cellulosic derived polymers. The continuous non-porous polymer based film can be a bioabsorbable polymer. The present invention also relates to a method for providing hemostasis by applying a composite structure described herein onto a wound site in need of a hemostatic device wherein a major surface of the substrate without the film layer is applied onto the wound site.
    Type: Application
    Filed: September 22, 2009
    Publication date: March 24, 2011
    Inventor: SASA ANDJELIC
  • Publication number: 20110034567
    Abstract: The present invention relates to a composition comprising a semi-crystalline, absorbable copolymer formulation wherein the first component is hydroxy-capped polycondensation product of diglycolic acid and a mixture of two idols, diethylene glycol (DEG) and ethylene glycol (EG), with DEG added in larger molar amount, and wherein the second component, glycolide is incorporated during the subsequent ring-opening polymerization. The resulting hydrophilic resin has low crystallinity level, glass transition temperature, Tg, slightly below room temperature, and may be particularly useful for making monofilaments, multifilaments, microspheres, or melt blown nonwoven constructs or other medical devices where fast hydrolysis rates and superior mechanical properties are desirable.
    Type: Application
    Filed: August 10, 2009
    Publication date: February 10, 2011
    Inventor: Sasa Andjelic