Patents by Inventor Patrick Hovis

Patrick Hovis 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
  • Occlusion detection method and system for ambulatory drug infusion pump
    Publication number: 20030069559
    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: Application
    Filed: December 9, 2002
    Publication date: April 10, 2003
    Inventors: Michael Platt, Ralph LaBedz, Patrick Hovis, Ronald H. Spang
  • Air in-line sensor for ambulatory drug infusion pump
    Publication number: 20030004458
    Abstract: An air in-line sensor 10 for detecting air bubbles in a therapeutic solution flowing through a tube 12 utilizes a unitary type sensor having a channel 16 for receiving the tube 12. The channel 16 has a tube loading section 18. A signal emitting member 20 is positioned on one side of the tube 12 and a signal receiving member 22 is positioned on an opposite side of the tube 12. A first air baffle 24 is positioned between the signal emitting 20 and signal receiving members 22.
    Type: Application
    Filed: September 4, 2002
    Publication date: January 2, 2003
    Inventors: Michael Platt, Ralph LaBedz, Patrick Hovis
  • Air in-line sensor for ambulatory drug infusion pump
    Patent number: 6489896
    Abstract: An air in-line sensor for detecting air bubbles in a therapeutic solution flowing through a tube utilizes a unitary type sensor having a channel for receiving the tube. The channel has a tube loading section. A signal emitting member is positioned on one side of the tube and a signal receiving member is positioned on an opposite side of the tube. A first air baffle is positioned between the signal emitting and signal receiving members.
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: December 3, 2002
    Assignee: Baxter International Inc.
    Inventors: Michael Platt, Ralph LaBedz, Patrick Hovis