Patents by Inventor Lukasz NAGRABA

Lukasz NAGRABA 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).

  • Method of manufacturing intramedullary nails made of chitosan for long bones fractures treatment
    Patent number: 10702633
    Abstract: The method, characterized in that, the powdered chitosan is dissolved in water to obtain a 5% solution, into which a 70-90% acetic acid is added and after the formation of the blank intramedullary nail and carrying a coagulating bath and neutralization bath it is subjected to a crosslinking bath in a solution formed from 0.5 to 2% of sodium tri-polyphosphate and 0.5% to 3% Na3PO4 for 24 to 48 hours in temperature of 50° C. to 140° C. and then it is subjected to the drying process, for a period of 6 to 10 days, and finally the surface of the blank is treated to form the intramedullary nail. The surface treatment is carried out until the surface of the intramedullary nail contains at least 20%-40% of the pore of the depth of 0.1 mm to 1 mm.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: July 7, 2020
    Assignee: WARSZAWSKI UNIWERSYTET MEDYCZNY
    Inventors: Tomasz Ciach, Jaroslaw Deszczyński, Jaroslaw Michal Deszczyński, Tomasz Mitek, Lukasz Nagraba, Artur Stolarczyk
  • METHOD OF MANUFACTURING INTRAMEDULLARY NAILS MADE OF CHITOSAN FOR LONG BONES FRACTURES TREATMENT
    Publication number: 20170354766
    Abstract: The method, characterized in that, the powdered chitosan is dissolved in water to obtain a 5% solution, into which a 70-90% acetic acid is added and after the formation of the blank intramedullary nail and carrying a coagulating bath and neutralization bath it is subjected to a crosslinking bath in a solution formed from 0.5 to 2% of sodium tri-polyphosphate and 0.5% to 3% Na3PO4 for 24 to 48 hours in temperature of 50° C. to 140° C. and then it is subjected to the drying process, for a period of 6 to 10 days, and finally the surface of the blank is treated to form the intramedullary nail. The surface treatment is carried out until the surface of the intramedullary nail contains at least 20%-40% of the pore of the depth of 0.1 mm to 1 mm.
    Type: Application
    Filed: June 26, 2017
    Publication date: December 14, 2017
    Inventors: Tomasz CIACH, Jaroslaw DESZCZYNSKI, Jaroslaw Michal DESZCZYNSKI, Tomasz MITEK, Lukasz NAGRABA, Artur STOLARCZYK