Patents by Inventor Shawn L. Simpson

Shawn L. Simpson 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).

  • Apparatus for sampling blood
    Patent number: 5265621
    Abstract: An apparatus for taking a blood sample after a catheter has been inserted into a patient including a syringe-type apparatus provided with a control collar which cooperates with radially extending portions of the plunger to selectably fix the axial position of the plunger. Retainer means is provided to prevent total withdrawal of the plunger from the syringe body. The plunger of the syringe may be provided with a center bore to permit flow of saline solution through the syringe to the patient.
    Type: Grant
    Filed: March 31, 1992
    Date of Patent: November 30, 1993
    Inventors: Shawn L. Simpson, Steven E. Young
  • Blood sampling apparatus
    Patent number: 5002066
    Abstract: In blood pressure monitoring apparatus, apparatus for withdrawing blood from a tube connected to a patient's blood vessel. A stopcock is connected to the tube. A T-connector is connected to one port of the stopcock. A storage syringe is connected to one branch of the T-connector and a latex self-sealing cap covers the other port to provide an IV site suitable for penetration with a syringe needle to withdraw a blood sample through the IV site. The storage syringe brings blood to the T-connector so that it can be withdrawn through the IV site.
    Type: Grant
    Filed: December 22, 1988
    Date of Patent: March 26, 1991
    Assignee: Medex, Inc.
    Inventors: Shawn L. Simpson, Steven E. Young, David G. Musgrove