Patents Assigned to Medtech Group, Inc.
  • Disposable hypodermic syringe
    Patent number: 5171300
    Abstract: A syringe and needle assembly having a piston that is formed to engage and retract the needle assembly into the syringe barrel. The piston includes a spring member that is elastically deformed by the attachment of the piston to the needle assembly. The spring member causes the needle assembly to be spring biased into a canted position so that, once retracted into the syringe barrel, the needle assembly cants to an inoperable position.
    Type: Grant
    Filed: April 16, 1992
    Date of Patent: December 15, 1992
    Assignee: Medtech Group, Inc.
    Inventors: Joseph W. Blake, III, Thomas E. Sloane, Jr.