Patents by Inventor Matthew S. Mazur

Matthew S. Mazur 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).

  • Retractable syringe with a closed barrel
    Patent number: 5401246
    Abstract: A retractable syringe that pulls the needle and holder from a fluid sealed releasable connection in the open forward end of the syringe barrel to a position enclosed within the barrel. A clip may lock the holder to the barrel to prevent release. The piston shaft may then be broken off at the piston and the free end of the shaft inserted through the now open forward end of the syringe barrel, enclosing and sealing the needle holder and the remaining fluid in the barrel, with the shaft holding the needle from longitudinal movement within the barrel. The syringe can then be disposed of without allowing access to the needle or having fluid leakage.
    Type: Grant
    Filed: December 14, 1993
    Date of Patent: March 28, 1995
    Assignee: U.S. Medical Instruments, Inc.
    Inventors: Matthew S. Mazur, Carlos H. Manjarrez
  • Retractable syringe with a closed barrel
    Patent number: 5308329
    Abstract: A retractable syringe that pulls the needle and holder from a fluid sealed releasable connection in the open forward end of the syringe barrel to a position enclosed within the barrel, with the piston shaft then being broken off at the piston and the free end of the shaft inserted through the now open forward end of the syringe barrel, enclosing and sealing the needle holder and the remaining fluid in the barrel, with the shaft holding the needle from longitudinal movement within the barrel. The syringe can then be disposed of without allowing access to the needle or having fluid leakage.
    Type: Grant
    Filed: September 2, 1992
    Date of Patent: May 3, 1994
    Assignee: U.S. Medical Instruments, Inc.
    Inventors: Matthew S. Mazur, Carlos H. Manjarrez
  • Retractable syringe with a closed barrel
    Patent number: 5205824
    Abstract: A retractable syringe that pulls the needle and holder from a fluid sealed releasable connection in the open forward end of the syringe barrel to a position enclosed within the barrel, with the piston shaft then being broken off at the piston and the free end of the shaft inserted through the now open forward end of the syringe barrel, enclosing and sealing the needle holder and the remaining fluid in the barrel, with the shaft holding the needle from longitudinal movement within the barrel. The syringe can then be disposed of without allowing access to the needle or having fluid leakage.
    Type: Grant
    Filed: June 13, 1991
    Date of Patent: April 27, 1993
    Inventor: Matthew S. Mazur