Patents by Inventor John S. Buan

John S. Buan 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).

  • Patent number: 7331343
    Abstract: Methods and systems for supplying supplemental oxygen to patients for use in sub-acute care which maintains healthy blood oxygen content in the patients by controlled dosing of oxygen with a measured response to the patient's actual blood oxygen content are disclosed. The dosing can be provided by simple ON/OFF control over the delivery of oxygen or the amount of oxygen delivered to the patient with each inhalation can be varied in response to the patient's need as determined by a more sophisticated control scheme, such as a PID loop control algorithm, that utilizes the difference between the patient's actual blood oxygen content and a target blood oxygen content and/or trends in the blood oxygen content. The systems and methods are particularly directed at patients receiving supplemental oxygen in a sub-acute care environment.
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: February 19, 2008
    Assignee: Minnesota Innovative Technologies & Instruments Corporation (MITI)
    Inventors: Matthew F. Schmidt, John S. Buan, Catherine A. Nordman
  • Publication number: 20040159323
    Abstract: Methods and systems for supplying respiratory oxygen to users when the users are inhaling are disclosed. The methods and systems may rely on delivery devices that are selectively placed in fluid communication with either a respiration sensor or a source of oxygen. The methods and systems may actively monitor for exhalations, as well as monitor for oxygen in the oxygen source. The respiration sensor may preferably be a flow sensor.
    Type: Application
    Filed: October 28, 2003
    Publication date: August 19, 2004
    Applicant: Minnesota Innovative Technologies and Instruments
    Inventors: Matthew F. Schmidt, John S. Buan, Catherine A. Nordman
  • Publication number: 20030145852
    Abstract: Methods and systems for supplying supplemental oxygen to patients for use in sub-acute care which maintains healthy blood oxygen content in the patients by controlled dosing of oxygen with a measured response to the patient's actual blood oxygen content are disclosed. The dosing can be provided by simple ON/OFF control over the delivery of oxygen or the amount of oxygen delivered to the patient with each inhalation can be varied in response to the patient's need as determined by a more sophisticated control scheme, such as a PID loop control algorithm, that utilizes the difference between the patient's actual blood oxygen content and a target blood oxygen content and/or trends in the blood oxygen content. The systems and methods are particularly directed at patients receiving supplemental oxygen in a sub-acute care environment.
    Type: Application
    Filed: February 20, 2003
    Publication date: August 7, 2003
    Applicant: Minnesota Innovative Technologies and Instruments
    Inventors: Matthew F. Schmidt, John S. Buan, Catherine A. Nordman
  • Patent number: 6561187
    Abstract: Methods and systems for supplying supplemental oxygen to patients for use in sub-acute care which maintains healthy blood oxygen content in the patients by controlled dosing of oxygen with a measured response to the patient's actual blood oxygen content are disclosed. The dosing can be provided by simple ON/OFF control over the delivery of oxygen or the amount of oxygen delivered to the patient with each inhalation can be varied in response to the patient's need as determined by a more sophisticated control scheme, such as a PID loop control algorithm, that utilizes the difference between the patient's actual blood oxygen content and a target blood oxygen content and/or trends in the blood oxygen content. The systems and methods are particularly directed at patients receiving supplemental oxygen in a sub-acute care environment.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: May 13, 2003
    Assignee: Minnesota Innovative Technologies & Instruments Corporation
    Inventors: Matthew F. Schmidt, John S. Buan, Catherine A. Nordman
  • Patent number: 6532958
    Abstract: Methods and systems for supplying supplemental oxygen to patients for use in sub-acute care which maintains healthy blood oxygen content in the patients by controlled dosing of oxygen with a measured response to the patient's actual blood oxygen content are disclosed. The dosing can be provided by simple ON/OFF control over the delivery of oxygen or the amount of oxygen delivered to the patient with each inhalation can be varied in response to the patient's need as determined by a more sophisticated control scheme, such as a PID loop control algorithm, that utilizes the difference between the patient's actual blood oxygen content and a target blood oxygen content and/or trends in the blood oxygen content. The systems and methods are particularly directed at patients receiving supplemental oxygen in a sub-acute care environment.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: March 18, 2003
    Assignee: Minnesota Innovative Technologies & Instruments Corporation
    Inventors: John S. Buan, Matthew F. Schmidt, Catherine A. Nordman
  • Publication number: 20020112726
    Abstract: Methods and systems for supplying supplemental oxygen to patients for use in sub-acute care which maintains healthy blood oxygen content in the patients by controlled dosing of oxygen with a measured response to the patient's actual blood oxygen content are disclosed. The dosing can be provided by simple ON/OFF control over the delivery of oxygen or the amount of oxygen delivered to the patient with each inhalation can be varied in response to the patient's need as determined by a more sophisticated control scheme, such as a PID loop control algorithm, that utilizes the difference between the patient's actual blood oxygen content and a target blood oxygen content and/or trends in the blood oxygen content. The systems and methods are particularly directed at patients receiving supplemental oxygen in a sub-acute care environment.
    Type: Application
    Filed: February 14, 2002
    Publication date: August 22, 2002
    Applicant: Minnesota Innovative Technologies and Instruments Corporation
    Inventors: Matthew F. Schmidt, John S. Buan, Catherine A. Nordman
  • Patent number: 6371114
    Abstract: Methods and systems for supplying supplemental oxygen to patients for use in sub-acute care which maintains healthy blood oxygen content in the patients by controlled dosing of oxygen with a measured response to the patient's actual blood oxygen content are disclosed. The dosing can be provided by simple ON/OFF control over the delivery of oxygen or the amount of oxygen delivered to the patient with each inhalation can be varied in response to the patient's need as determined by a more sophisticated control scheme, such as a PID loop control algorithm, that utilizes the difference between the patient's actual blood oxygen content and a target blood oxygen content and/or trends in the blood oxygen content. The systems and methods are particularly directed at patients receiving supplemental oxygen in a sub-acute care environment.
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: April 16, 2002
    Assignee: Minnesota Innovative Technologies & Instruments Corporation
    Inventors: Matthew F. Schmidt, John S. Buan, Catherine A. Nordman
  • Patent number: 6186142
    Abstract: Methods and systems for supplying respiratory oxygen to patients when the patients are inhaling are disclosed. The methods and systems may rely on delivery devices that are selectively placed in fluid communication with either a respiration sensor or a source of oxygen. The methods and systems may actively monitor for exhalations, as well as monitor for oxygen in the oxygen source. The respiration sensor may preferably be a flow sensor.
    Type: Grant
    Filed: November 13, 1998
    Date of Patent: February 13, 2001
    Assignee: Minnesota Innovative Technologies & Instruments Corporation (MITI)
    Inventors: Matthew F. Schmidt, John S. Buan, Catherine A. Nordman