Patents by Inventor Rebecca Shult

Rebecca Shult 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).

  • Impedance monitoring for detecting pulmonary edema and thoracic congestion
    Patent number: 8131356
    Abstract: An implantable medical device includes a housing for the implantable device that is sized for implantation in a chest region of a patient and includes a housing electrode. A left ventricular lead port is connectable to a proximal end of a lead having first and second insulated conductors that extend from the proximal end of the lead to corresponding first and second electrodes near a distal end of the lead. An electrical impedance measurement circuit is electrically connected to the left ventricular lead port and the housing electrode. The circuit may inject current between the first lead electrode and the housing electrode, and measure a voltage potential, created by the current injection, between the second lead electrode and the housing electrode. The ratio of the measured voltage to injected current may be used for assessing pulmonary edema. The lead electrodes may be located in a left ventricular coronary vein.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: March 6, 2012
    Assignee: Regents of the University of Minnesota
    Inventors: Andres Belalcazar, Robert Patterson, Rebecca Shult
  • Impedance Monitoring For Detecting Pulmonary Edema And Thoracic Congestion
    Publication number: 20080125826
    Abstract: An implantable medical device includes a housing for the implantable device that is sized for implantation in a chest region of a patient and includes a housing electrode. A left ventricular lead port is connectable to a proximal end of a lead having first and second insulated conductors that extend from the proximal end of the lead to corresponding first and second electrodes near a distal end of the lead. An electrical impedance measurement circuit is electrically connected to the left ventricular lead port and the housing electrode. The circuit may inject current between the first lead electrode and the housing electrode, and measure a voltage potential, created by the current injection, between the second lead electrode and the housing electrode. The ratio of the measured voltage to injected current may be used for assessing pulmonary edema. The lead electrodes may be located in a left ventricular coronary vein.
    Type: Application
    Filed: November 7, 2007
    Publication date: May 29, 2008
    Inventors: Andres Belalcazar, Robert Patterson, Rebecca Shult
  • Impedance monitoring for detecting pulmonary edema and thoracic congestion
    Patent number: 7313434
    Abstract: An implantable medical device includes a housing for the implantable device that is sized for implantation in a chest region of a patient and includes a housing electrode. A left ventricular lead port is connectable to a proximal end of a lead having first and second insulated conductors that extend from the proximal end of the lead to corresponding first and second electrodes near a distal end of the lead. An electrical impedance measurement circuit is electrically connected to the left ventricular lead port and the housing electrode. The circuit may inject current between the first lead electrode and the housing electrode, and measure a voltage potential, created by the current injection, between the second lead electrode and the housing electrode. The ratio of the measured voltage to injected current may be used for assessing pulmonary edema. The lead electrodes may be located in a left ventricular coronary vein.
    Type: Grant
    Filed: November 25, 2002
    Date of Patent: December 25, 2007
    Assignee: Regents of the University of Minnesota
    Inventors: Andres Belalcazar, Robert Patterson, Rebecca Shult
  • Impedance monitoring for detecting pulmonary edema and thoracic congestion
    Publication number: 20040102712
    Abstract: An implantable medical device includes a housing for the implantable device that is sized for implantation in a chest region of a patient and includes a housing electrode. A left ventricular lead port is connectable to a proximal end of a lead having first and second insulated conductors that extend from the proximal end of the lead to corresponding first and second electrodes near a distal end of the lead. An electrical impedance measurement circuit is electrically connected to the left ventricular lead port and the housing electrode. The circuit may inject current between the first lead electrode and the housing electrode, and measure a voltage potential, created by the current injection, between the second lead electrode and the housing electrode. The ratio of the measured voltage to injected current may be used for assessing pulmonary edema. The lead electrodes may be located in a left ventricular coronary vein.
    Type: Application
    Filed: November 25, 2002
    Publication date: May 27, 2004
    Inventors: Andres Belalcazar, Robert Patterson, Rebecca Shult