Patents by Inventor Peter Sylvest Nielsen

Peter Sylvest Nielsen 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: 8877223
    Abstract: The present application discloses biodegradable polymers, to porous and other materials comprising such polymers, and to various medical uses of such materials, including use as a scaffold for supporting cell adhesion or the in-growth for regeneration of tissue. The polymer is of the formula A-O—(CHR1CHR2O)n—B wherein A is a poly(lactide-co-glycolide) residue, the molar ratio of (i) lactide units [—CH(CH3)—COO—] and (ii) glycolide units [—CH2—COO—] in the poly(lactide-co-glycolide) residue being in the range of 80:20 to 10:90, B is either a poly(lactide-co-glycolide) residue or hydrogen, C1-6-alkyl or hydroxy protecting groups, one of R1 and R2 is hydrogen or methyl, and the other is hydrogen, n is 10-1000, the molar ratio of (iii) polyalkylene glycol units [—(CHR1CHR2O)—] to the combined amount of (i) lactide units and (ii) glycolide units in the poly(lactide-co-glycolide) residue(s) is at the most 14:86, and the molecular weight of the copolymer is at least 20,000 g/mol.
    Type: Grant
    Filed: March 7, 2007
    Date of Patent: November 4, 2014
    Assignee: Coloplast A/S
    Inventors: Jakob Vange, Khadija Schwach-Abdellaoui, Hanne Everland, Peter Sylvest Nielsen, Brian Nielsen, Lene Karin Jespersen, Lene Feldskov Nielsen
  • Patent number: 8053559
    Abstract: We add discontinuous regions of Extra Cellular Matrix (ECM) to a biodegradable scaffold. Hereby it is possible to combine the range of physical properties the scaffold can offer with the reconstructive properties of the ECM. The optimal amount of discrete ECM material for each application is disclosed and this concentration is equally distributed in the dressing hence avoiding unnecessary high concentrations of ECM. In addition to the effect of the ECM, the porous structure of the base material provides the cells with a structure for in-growth.
    Type: Grant
    Filed: October 26, 2006
    Date of Patent: November 8, 2011
    Assignee: Coloplast A/S
    Inventors: Peter Sylvest Nielsen, Brian Nielsen, Lene Karin Jespersen, Hanne Everland, Lene Feldskov Nielsen
  • Publication number: 20090280154
    Abstract: We add discontinuous regions of Extra Cellular Matrix (ECM) to a biodegradable scaffold. Hereby it is possible to combine the range of physical properties the scaffold can offer with the reconstructive properties of the ECM. The optimal amount of discrete ECM material for each application is disclosed and this concentration is equally distributed in the dressing hence avoiding unnecessary high concentrations of ECM. In addition to the effect of the ECM, the porous structure of the base material provides the cells with a structure for in-growth.
    Type: Application
    Filed: October 26, 2006
    Publication date: November 12, 2009
    Inventors: Peter Sylvest Nielsen, Brian Nielsen, Lene Karin Jespersen, Hanne Everland, Lene Feldskov Nielsen
  • Publication number: 20090047322
    Abstract: The present application discloses biodegradable polymers, to porous and other materials comprising such polymers, and to various medical uses of such materials, including use as a scaffold for supporting cell adhesion or the in-growth for regeneration of tissue. The polymer is of the formula A—O—(CHR1CHR2O)n-B wherein A is a poly(lactide-co-glycolide) residue, the molar ratio of (i) lactide units [—CH(CH3)—COO—] and (ii) glycolide units [—CH2—COO—] in the poly(lactide-co-glycolide) residue being in the range of 80:20 to 10:90, B is either a poly(lactide-co-glycolide) residue or hydrogen, C1-6-alkyl or hydroxy protecting groups, one of R1 and R2 is hydrogen or methyl, and the other is hydrogen, n is 10-1000, the molar ratio of (iii) polyalkylene glycol units [-(CHR1CHR2O)—] to the combined amount of (i) lactide units and (ii) glycolide units in the poly(lactide-co-glycolide) residue(s) is at the most 14:86, and the molecular weight of the copolymer is at least 20,000 g/mol.
    Type: Application
    Filed: March 7, 2007
    Publication date: February 19, 2009
    Inventors: Jakob Vange, Khadija Schwach-Abdellaoui, Hanne Everland, Peter Sylvest Nielsen, Brian Nielsen, Lene Karin Jespersen, Lene Feldskov Nielsen
  • Patent number: 6326030
    Abstract: A method for preparing a non-fibrous porous material essentially consisting of one or more hydrophilic polymers and/or pharmaceutical medicaments comprising forming an aqueous solution, sol or gel comprising one or more hydrophilic polymers and/or pharmaceutical medicaments, freezing the solution, sol or gel and extracting the frozen water selectively using a hydrophilic organic solvent being miscible with water at a temperature below 5° C. at which temperature the solvent is not able to dissolve the frozen solutes, leaving the non-fibrous material in a solid, porous form.
    Type: Grant
    Filed: June 19, 1998
    Date of Patent: December 4, 2001
    Assignee: Colorplast A/S
    Inventors: Lars Schoenfeldt, Peter Sylvest Nielsen
  • Patent number: 6201164
    Abstract: A hydrocolloid gel composition, especially a wound gel composition, which comprises: a) a water insoluble, water swellable cross-linked cellulose derivative; b) an alginate; and c) distilled water in a sufficient amount to make up the difference between the amount of ingredients a)+b) and 100% and wherein the gel comprises from 0.05 to 5.00% by weight of alginate, shows better absorption capacity than known gels, accelerates the healing by serving as a slow-release system for active ingredients promoting wound healing.
    Type: Grant
    Filed: January 11, 1999
    Date of Patent: March 13, 2001
    Assignee: Coloplast A/S
    Inventors: Trine Wulff, Sven Per Magnus Aagren, Peter Sylvest Nielsen
  • Patent number: 5738860
    Abstract: The invention concerns a porous material essentially consisting of one or more hydrophilic polymers and/or pharmaceutical water-soluble medicaments as well as optionally reinforcing elements and/or additives. The material has a structure essentially in the form of elongate leaf-like formations, which essentially extend in the same vertical direction, and which are united in longitudinal areas to provide vertically elongate pores located therebetween. The invention additionally concerns a wound dressing comprising such a material, and a method of making the material.
    Type: Grant
    Filed: March 29, 1996
    Date of Patent: April 14, 1998
    Assignee: Coloplast A/S
    Inventors: Lars Sch.o slashed.nfeldt, Peter Sylvest Nielsen, Peter Boman Samuelsen
  • Patent number: D398838
    Type: Grant
    Filed: August 21, 1997
    Date of Patent: September 29, 1998
    Assignee: Coloplast A/S
    Inventor: Peter Sylvest Nielsen