Patents by Inventor Andrea E. Hafeman

Andrea E. Hafeman 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).

  • INJECTABLE DUAL DELIVERY ALLOGRAPH BONE/POLYMER COMPOSITE FOR TREATMENT OF OPEN FRACTURES
    Publication number: 20110236501
    Abstract: A biodegradable polyurethane scaffold, comprising at least one polyisocyante, polyisocyanate prepolymer, or both, at least one polyester polyol, at least one catalyst, wherein the density of said scaffold is from about 50 to about 250 kg m-3 and the porosity of the scaffold is greater than about 70 (vol %) and at least 50% of the pores are interconnected with another pore, and wherein the scaffold incorporates at least one biologically active component in powder form.
    Type: Application
    Filed: January 12, 2011
    Publication date: September 29, 2011
    Inventors: Scott A. Guelcher, Bing Li, Andrea E. Hafeman, Joseph C. Wenke, Kate V. Brown
  • RELEASE OF ANTIBIOTIC FROM INJECTABLE, BIODEGRADABLE POLYURETHANE SCAFFOLDS FOR ENHANCED BONE FRACTURE HEALING
    Publication number: 20110038946
    Abstract: A biodegradable polyurethane scaffold, comprising at least one polyisocyante, polyisocyanate prepolymer, or both, at least one polyester polyol, at least one catalyst, wherein the density of said scaffold is from about 50 to about 250 kg m-3 and the porosity of the scaffold is greater than about 70 (vol %) and at least 50% of the pores are interconnected with another pore, and wherein the scaffold incorporates at least one biologically active component in powder form.
    Type: Application
    Filed: September 5, 2008
    Publication date: February 17, 2011
    Inventors: Scott A. Guelcher, Andrea E. Hafeman
  • INJECTABLE BONE/POLYMER COMPOSITE BONE VOID FILLERS
    Publication number: 20100068171
    Abstract: A biodegradable polyurethane scaffold that includes a HDI trimer polyisocyanate and at least one polyol; wherein the density of said scaffold is from about 50 to about 250 kg m?3 and the porosity of the scaffold is greater than about 70 (vol %) and at least 50% of the pores are interconnected with another pore. The scaffolds of the present invention are injectable as polyurethane foams, and are useful in the field of tissue engineering.
    Type: Application
    Filed: May 27, 2009
    Publication date: March 18, 2010
    Inventors: Scott A. Guelcher, Andrea E. Hafeman, Michelle B. Brouner
  • POLY (ESTER URETHANE) UREA FOAMS WITH ENHANCED MECHANICAL AND BIOLOGICAL PROPERTIES
    Publication number: 20090130174
    Abstract: A biodegradable polyurethane scaffold that includes a HDI trimer polyisocyanate and at least one polyol; wherein the density of said scaffold is from about 50 to about 250 kg m-3 and the porosity of the scaffold is greater than about 70 (vol %) and at least 50% of the pores are interconnected with another pore. The scaffolds of the present invention are injectable as polyurethane foams, and are useful in the field of tissue engineering.
    Type: Application
    Filed: August 20, 2008
    Publication date: May 21, 2009
    Inventors: Scott A. Guelcher, Andrea E, Hafeman, Lance I. Hochhauser