Patents by Inventor David M. Wrightson

David M. Wrightson 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).

  • Multi-dose syringe driver
    Patent number: 5954695
    Abstract: A syringe driver device is able to effect the controlled, parenteral infusion of a medical fluid using an available disposable syringe. The driver device includes a frame heaving a movable carriage, which houses a force applying element, mounted thereto. A disposable syringe mounts upon the frame and a lengthy microbore tubing attaches to the outlet tip of the syringe. As a force is applied to the syringe plunger, fluid is expelled from the syringe, but its flow rate is dependent upon the diameter of the microbore tubing. The driver device enables the delivery of multiple, sequential doses of fluid.
    Type: Grant
    Filed: February 25, 1998
    Date of Patent: September 21, 1999
    Assignee: The General Hospital Corporation
    Inventors: Nathaniel M. Sims, Michael H. Wollowitz, David M. Wrightson
  • Multi-dose syringe driver
    Patent number: 5722956
    Abstract: A syringe driver device is able to effect the controlled, parenteral infusion of a medical fluid using an available disposable syringe. The driver device includes a frame heaving a movable carriage, which houses a force applying element, mounted thereto. A disposable syringe mounts upon the frame and a lengthy microbore tubing attaches to the outlet tip of the syringe. As a force is applied to the syringe plunger, fluid is expelled from the syringe, but its flow rate is dependent upon the diameter of the microbore tubing. The driver device enables the delivery of multiple, sequential doses of fluid.
    Type: Grant
    Filed: August 14, 1996
    Date of Patent: March 3, 1998
    Assignee: The General Hospital Corporation
    Inventors: Nathaniel M. Sims, Michael H. Wollowitz, David M. Wrightson