Patents by Inventor Michelle A. Schwinghammer

Michelle A. Schwinghammer 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 of producing combination ion selective sensing electrode
    Patent number: 4565666
    Abstract: A combination ion sensing and reference electrode and a method for producing it. The electrode is formed of bi-lumen plastic tubing using one lumen as sensing chamber and the other as a reference chamber. A portion of the sensing chamber extends distally relative to the reference chamber, and is permeated with an ion selective material by soaking that portion in a solution containing the ion selective material. The method of manufacture is thereby simplified and sealing of the chambers is improved.
    Type: Grant
    Filed: July 18, 1984
    Date of Patent: January 21, 1986
    Assignee: Medtronic, Inc.
    Inventors: Patrick T. Cahalan, Michelle A. Schwinghammer
  • Combination ion selective sensing electrode
    Patent number: 4486290
    Abstract: A combination ion sensing and reference electrode and a method for producing it. The electrode is formed of bi-lumen plastic tubing using one lumen as sensing chamber and the other as a reference chamber. A portion of the sensing chamber extends distally relative to the reference chamber, and is permeated with an ion selective material by soaking that portion in a solution containing the ion selective material. The method of manufacture is thereby simplified and sealing of the chambers is improved.
    Type: Grant
    Filed: August 3, 1983
    Date of Patent: December 4, 1984
    Assignee: Medtronic, Inc.
    Inventors: Patrick T. Cahalan, Michelle A. Schwinghammer