Patents by Inventor Guido Ragazzi

Guido Ragazzi 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).

  • Sampling and infusion connector for an extracorporeal blood circulation line
    Patent number: 5306265
    Abstract: A connector includes a body having a tubular cavity connected to two ducts and includes an infusion aperture for infusing a liquid into the line and a sampling aperture for sampling blood. A constriction having a diameter progressively decreasing towards the inlet aperture is disposed in the cavity between the two apertures and produces a Venturi tube effect, preventing the sampled blood from being affected by the infused liquid.
    Type: Grant
    Filed: December 11, 1992
    Date of Patent: April 26, 1994
    Assignee: Hospal, Ltd.
    Inventor: Guido Ragazzi