Patents by Inventor Isidoro Mazzara

Isidoro Mazzara 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 needle safety syringe
    Patent number: 7717876
    Abstract: The invention relates to a perfected retractable needle safety syringe comprising a hollow cylinder, a needle holder, a needle and a piston with an operating stem, said stem exhibiting an axial hole wherein there are seated a retraction pre-loaded spring and an extractor element. The extractor element exhibits a recess or seat intended for interacting with the needle holder, and at the side opposite the needle holder, a projection or annular rib.
    Type: Grant
    Filed: November 24, 2005
    Date of Patent: May 18, 2010
    Inventor: Isidoro Mazzara
  • Retractable Needle Safety Syringe
    Publication number: 20080033355
    Abstract: The invention relates to a perfected retractable needle safety syringe comprising a hollow cylinder, a needle holder, a needle and a piston with an operating stem, said stem exhibiting an axial hole wherein there are seated a retraction pre-loaded spring and an extractor element. The extractor element exhibits a recess or seat intended for interacting with the needle holder, and at the side opposite the needle holder, a projection or annular rib.
    Type: Application
    Filed: November 24, 2005
    Publication date: February 7, 2008
    Inventor: Isidoro Mazzara
  • Selflocking syringe
    Patent number: 5222943
    Abstract: The invention regards a selflocking syringe. The syringe rod (13) is equipped with an extractor (15) which, when the syringe plunger (12) is pushed to the end of the stroke, hooks (15b) the needle (11) and withdraws it by means of a preloaded spring (16) to the inside of the rod (13), into a protected and inaccessible position, thus making the syringe unserviceable already after its first use.
    Type: Grant
    Filed: March 16, 1992
    Date of Patent: June 29, 1993
    Assignee: Profarm S.p.A.
    Inventor: Isidoro Mazzara