Patents by Inventor Ronald P. Spang

Ronald P. Spang 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).

  • Occlusion detection method and system for ambulatory drug infusion pump
    Patent number: 6648861
    Abstract: A method of detecting an occlusion within a flexible infusion tube by measuring samples indicative of pressures relative to instances in time. Difference values for the samples are created. The difference values are compared to percentages of other difference values. When appropriate, an occlusion signal is generated in response to a comparison of a difference value to a percentage of another difference value.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: November 18, 2003
    Assignee: Baxter International Inc.
    Inventors: Michael Platt, Ralph LaBedz, Patrick Hovis, Ronald P. Spang
  • Occlusion detection method and system for ambulatory drug infusion pump
    Patent number: 6572604
    Abstract: A method of detecting an occlusion within a flexible infusion tube by measuring samples indicative of pressures relative to instances in time. Difference values for the samples are created. The difference values are compared to percentages of other difference values. When appropriate, an occlusion signal is generated in response to a comparison of a difference value to a percentage of another difference value.
    Type: Grant
    Filed: November 7, 2000
    Date of Patent: June 3, 2003
    Assignee: Baxter International Inc.
    Inventors: Michael Platt, Ralph LaBedz, Patrick Hovis, Ronald P. Spang