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Inventor:
Hopper; Donald L.
Address:
Maple Grove, MN
No. of patents:
16
Patents:












Patent Number Title Of Patent Date Issued
8588910 Non-linear dynamic AV delay November 19, 2013
A non-linear dynamic specified AV delay can be used, such as to help maintain cardiac resynchronization therapy, such as in patients with one or more symptoms of congestive heart failure.
8249715 Implantable medical device configured as a pedometer August 21, 2012
A system includes an implantable medical device. The implantable medical device includes a control circuit and a motion sensing device. The motion sensing device is coupled to the control circuit, and the motion sensing device is configured to transmit signals to the control circuit. The
8116869 Cardiopulmonary functional status assessment via metabolic response detection by implantable car February 14, 2012
An implantable cardiac device is configured and programmed to assess a patient's cardiopulmonary function by evaluating the patient's minute ventilation response. Such evaluation may be performed by computing a minute ventilation response slope, defined as the ratio of an incremental
8103343 Automatic modulation of pacing timing intervals using beat to beat measures January 24, 2012
Methods and systems to modulate timing intervals for pacing therapy are described. For each cardiac cycle, one or both of an atrioventricular (A-V) timing interval and an atrial (A-A) timing interval are modulated to oppose beat-to-beat ventricular (V-V) timing variability. Pacing th
8065010 Method and apparatus for monitoring heart failure patients with cardiopulmonary comorbidities November 22, 2011
A system receives signals indicative of cardiopulmonary conditions sensed by a plurality of sensors and provides for monitoring and automated differential diagnosis of the cardiopulmonary conditions based on the signals. Cardiogenic pulmonary edema is detected based on one or more si
8019418 Self-calibrating rate-adaptive pacemaker September 13, 2011
A system and method for automatically adjusting the operating parameters of a rate-adaptive cardiac pacemaker. In accordance with the method, maximum exertion levels attained by the patient are measured at periodic intervals and stored. The stored maximum exertion levels may then be used
7904156 Modulation of AV delay to control ventricular interval variability March 8, 2011
System and methods provide pacing therapy that modulates the atrioventricular (AV) delay to control ventricular interval variability. A base AV delay is determined as a function of heart rate. For each cardiac cycle, the base AV delay is modulated to reduce beat-to-beat variability o
7844336 Implantable medical device configured as a pedometer November 30, 2010
This document discusses, among other things, a system including an implantable medical device. The implantable medical device includes a control circuit and a motion sensing device. The motion sensing device is coupled to the control circuit, and the motion sensing device is configur
7833164 System and method for monitoring autonomic balance and physical activity November 16, 2010
An implantable device monitors the balance between sympathetic tone and parasympathetic tone as a function of an activity level. Cardio-neurological healthy users exhibit a generally sympathetic tone in conjunction with heavy activity level and a generally parasympathetic tone in con
7680534 Implantable cardiac device with dyspnea measurement March 16, 2010
Cardiac monitoring and/or stimulation methods and systems employing dyspnea measurement. An implantable cardiac device may sense transthoracic impedance and determine a patient activity level. An index indicative of pulmonary function is implantably computed to detect an episode of d
7599741 Systems and methods for improving heart rate kinetics in heart failure patients October 6, 2009
Adaptive rate pacing for improving heart rate kinetics in heart failure patients involves determining onset and sustaining of patient activity. The patient's heart rate response to the sustained activity is evaluated during a time window defined between onset of the activity and a st
7488290 System and method for assessing cardiac performance through transcardiac impedance monitoring February 10, 2009
A system and method for assessing cardiac performance through transcardiac impedance monitoring is described. Intracardiac impedance measures are directly collected through an implantable medical device. The intracardiac impedance measures are correlated to cardiac dimensional measur
6459929 Implantable cardiac rhythm management device for assessing status of CHF patients October 1, 2002
A method and apparatus for providing congestive heart failure therapy status. An electronic device, preferably a cardiac rhythm management device, capable of measuring transthoracic impedance and for sensing a level of physical activity is implanted in a patient. The transthoracic im
6411850 Method of determining a ventilatory threshold breakpoint for an adaptive rate pacemaker June 25, 2002
A method for automatically determining the ventilatory (or "anaerobic") threshold breakpoint for adaptive rate pacing without the need for directly measuring anaerobic threshold or ventilatory threshold comprises: (a) positioning a first sensing electrode in the heart or superior vena
6275727 Implantable cardiac rhythm management device for assessing status of CHF patients August 14, 2001
A method and apparatus for providing congestive heart failure therapy status. An electronic device, preferably a cardiac rhythm management device, capable of measuring transthoracic impedance and for sensing a level of physical activity is implanted in a patient. The transthoracic im
6273856 Apparatus and methods for METS measurement by accelerometer and minute ventilation sensors August 14, 2001
Exertion levels of a patient are measured by monitoring signals from adaptive-rate sensors such as an accelerometer and or a minute ventilation sensor; sensor data is collected for conversion into metabolic equivalent measurements. The data obtained can be used to evaluate patient physic










 
 
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