Patents by Inventor David G. Zabel

David G. Zabel 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).

  • Shuttle pump with controlled geometry
    Patent number: 8382447
    Abstract: An infusion pump uses an improved shuttle mechanism to more reliably pump liquids in low volumes for medical and other purposes. The improved shuttle uses linear translation and wider, symmetric jaws to grasp infusate tubing and pump liquid infusate through the tubing. Adjustment of the linear motion allows a user to also adjust a pumping volume of the infusion pump. Other shuttles with wider jaws may also pump infusate using a rotary motion. In addition, more than one shuttle, such as two or three shuttles, may be used to approximate continuous pumping. A series of several smaller linear shuttles with sequential actuation may be used as a linear peristaltic pump for general peristaltic pump applications.
    Type: Grant
    Filed: December 31, 2009
    Date of Patent: February 26, 2013
    Assignees: Baxter International, Inc., Baxter Healthcare S.A.
    Inventors: Zhengyan Wang, Surya Pratap Rai, Ronald H. Spang, Jr., Peter Bojan, David G. Zabel, Joseph Allen Carmichael, Ralph LaBedz
  • SHUTTLE PUMP WITH CONTROLLED GEOMETRY
    Publication number: 20110158823
    Abstract: An infusion pump uses an improved shuttle mechanism to more reliably pump liquids in low volumes for medical and other purposes. The improved shuttle uses linear translation and wider, symmetric jaws to grasp infusate tubing and pump liquid infusate through the tubing. Adjustment of the linear motion allows a user to also adjust a pumping volume of the infusion pump. Other shuttles with wider jaws may also pump infusate using a rotary motion. In addition, more than one shuttle, such as two or three shuttles, may be used to approximate continuous pumping. A series of several smaller linear shuttles with sequential actuation may be used as a linear peristaltic pump for general peristaltic pump applications.
    Type: Application
    Filed: December 31, 2009
    Publication date: June 30, 2011
    Applicants: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.
    Inventors: Zhengyan Wang, Surya Pratap Rai, Ronald H. Spang, JR., Peter Bojan, David G. Zabel, Joseph Allen Carmichael, Ralph LaBedz