Patents by Inventor Jean M. Payrat

Jean M. Payrat 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 and apparatus for collection of platelets
    Patent number: 5614106
    Abstract: Methods and apparatus are disclosed for separating and collecting blood fractions or components such as platelets. A first anticoagulant solution is added to whole blood, which is then separated into platelet-rich plasma and red cells. A second anticoagulant is added to the platelet rich plasma, which is then separated into platelet-poor plasma and platelet concentrate. The rate of red cell sedimentation is increased and the time of the separation/collection procedure may be reduced when the pH of the first anticoagulant is greater than approximately 6.0.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: March 25, 1997
    Assignee: Baxter International Inc.
    Inventors: Jean M. Payrat, Donald W. Schoendorfer