US Patent No: 5,593,431

Number of patents in Portfolio can not be more than 2000

Medical service employing multiple DC accelerometers for patient activity and posture sensing and method

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Abstract

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A method of and apparatus for determining the physical posture of a patient's body, having a superior-inferior body axis, an anterior-posterior body axis and a lateral-medial body axis, in relation to earth's gravitational field. A medical device having first, second and, optionally, third DC accelerometers having sensitive axes mounted orthogonally within an implantable housing is adapted to be implanted with the sensitive axes generally aligned with the patient's body axes. Each DC accelerometer generates DC accelerometer signals having characteristic magnitudes and polarities on alignment of the sensitive axis with, against or normal to earth's gravitational field and DC accelerometer signals of varying magnitudes and polarities when not so aligned. Body position may be determined through comparison of the magnitudes and polarities of the DC accelerometer signals with the characteristic magnitudes and polarities. A patient activity signal may also be determined from the frequency of body movements recurring over a time unit effecting magnitude changes in the DC accelerometer signals within a certain range of magnitude and frequency. The activity and body position signals may be stored and/or used to monitor and effect the delivery of a therapy to the patient, e.g. by controlling the pacing rate of a rate responsive pacemaker.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
MEDTRONIC, INC.MINNEAPOLIS, MN5492

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sheldon, Todd J North Oaks, MN 121 1841

Cited Art Landscape

Patent Info (Count) # Cites Year
 
MEDTRONIC, INC. (8)
4,374,382 Marker channel telemetry system for a medical device 244 1981
4,428,378 Rate adaptive pacer 324 1981
4,556,063 Telemetry system for a medical device 401 1984
5,031,618 Position-responsive neuro stimulator 200 1990
5,226,413 Rate responsive pacemaker and method for automatically initializing the same 74 1990
5,233,984 Implantable multi-axis position and activity sensor 113 1991
5,127,404 Telemetry format for implanted medical device 340 1991
5,318,596 Activity sensing pacemaker 26 1991
 
ADVANCED MEDICAL DEVICES, S.A. (1)
5,354,317 Apparatus and method for cardiac pacing responsive to patient position 106 1992
 
ALT, ECKHARD (1)
5,342,404 Implantable medical interventional device 62 1992
 
ELA MEDICAL S.A. (1)
5,330,510 Pacemaker with patient effort-controlled frequency 13 1992
 
MED REL, INC. (1)
4,257,423 Medical device 39 1978
 
PACESETTER AB (1)
4,869,251 Implantable heart pacemaker with a sensor for inertial and/or rotational movements of the user 23 1988
 
PACESETTER, INC. (1)
5,010,893 Motion sensor for implanted medical device 77 1988

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
MEDTRONIC, INC. (117)
6,120,467 Spinal cord simulation systems with patient activity monitoring and therapy adjustments 134 1998
6,044,297 Posture and device orientation and calibration for implantable medical devices 251 1998
6,440,090 Spinal cord simulation systems with patient activity monitoring and therapy adjustments 138 2000
6,731,976 Device and method to measure and communicate body parameters 322 2001
7,010,344 Method and apparatus for delaying a ventricular tachycardia therapy 9 2002
8,396,565 Automatic therapy adjustments 0 2003
6,964,641 Implantable medical device with sleep disordered breathing monitoring 107 2003
7,717,848 Collecting sleep quality information via a medical device 53 2004
7,491,181 Collecting activity and sleep quality information via a medical device 45 2004
7,395,113 Collecting activity information to evaluate therapy 57 2004
7,366,572 Controlling therapy based on sleep quality 50 2004
7,330,760 Collecting posture information to evaluate therapy 51 2004
7,775,993 Detecting sleep 11 2005
7,590,455 Controlling therapy based on sleep quality 33 2005
7,542,803 Sensitivity analysis for selecting therapy parameter sets 48 2005
7,447,545 Collecting posture information to evaluate therapy 48 2005
7,167,743 Collecting activity information to evaluate therapy 95 2005
7,313,440 Collecting posture and activity information to evaluate therapy 97 2005
7,406,351 Activity sensing for stimulator control 38 2005
7,389,147 Therapy delivery mode selection 49 2005
7,519,409 Implantable cell/tissue-based biosensing device 0 2005
8,478,399 Method and apparatus for controlling arrhythmia detection and treatment based on patient posture 0 2006
7,496,409 Implantable medical device system and method with signal quality monitoring and response 18 2006
8,021,299 Correlating a non-polysomnographic physiological parameter set with sleep states 10 2006
8,435,185 Method and apparatus for detecting arrhythmias in a medical device 0 2006
8,160,684 Method and apparatus for detecting arrhythmias in a medical device 0 2006
8,016,776 Wearable ambulatory data recorder 4 2006
7,962,202 Method and apparatus for verifying a determined cardiac event in a medical device based on detected variation in hemodynamic status 0 2006
7,907,993 Method and apparatus for detecting arrhythmias in a medical device 13 2006
7,853,322 Closed-loop therapy adjustment 3 2006
7,769,452 Method and apparatus for detecting arrhythmias in a medical device 0 2006
7,761,142 Method and apparatus for detecting arrhythmias in a medical device 16 2006
7,742,812 Method and apparatus for detecting arrhythmias in a medical device 2 2006
7,734,333 Method and apparatus for detecting arrhythmias in a medical device 1 2006
7,647,095 Method and apparatus for verifying a determined cardiac event in a medical device based on detected variation in hemodynamic status 3 2006
7,623,919 Distributed lead functionality testing 33 2006
7,991,471 Method and apparatus for detecting arrhythmias in a subcutaneous medical device 1 2006
8,725,244 Determination of sleep quality for neurological disorders 0 2006
7,941,214 Method and apparatus for detecting arrhythmias in a subcutaneous medical device 0 2006
7,957,797 Closed-loop therapy adjustment 4 2006
7,957,809 Closed-loop therapy adjustment 10 2006
7,894,894 Method and apparatus for detecting arrhythmias in a subcutaneous medical device 14 2007
7,647,121 Therapy delivery mode selection 13 2007
8,744,587 Collecting gait information for evaluation and control of therapy 0 2007
8,308,661 Collecting activity and sleep quality information via a medical device 1 2007
8,135,473 Collecting posture and activity information to evaluate therapy 2 2007
8,055,348 Detecting sleep to evaluate therapy 6 2007
8,032,224 Sensitivity analysis for selecting therapy parameter sets 6 2007
7,881,798 Controlling therapy based on sleep quality 4 2007
7,805,196 Collecting activity information to evaluate therapy 6 2007
7,792,583 Collecting posture information to evaluate therapy 43 2007
7,590,453 Collecting activity information to evaluate incontinence therapy 44 2007
8,095,206 Method and apparatus for detecting arrhythmias in a medical device 0 2007
8,068,901 Method and apparatus for adjusting a sensing parameter 1 2007
7,937,135 Method and apparatus for adjusting a sensing parameter 3 2007
7,774,049 Method and apparatus for determining oversensing in a medical device 14 2007
8,103,351 Therapy control using relative motion between sensors 2 2007
8,204,597 Evaluating patient incontinence 0 2007
7,908,013 Collecting activity information to evaluate therapy 2 2008
8,688,201 System and method to monitor ejection time and QT interval to alert patients before syncopal events 0 2008
7,996,070 Template matching method for monitoring of ECG morphology changes 2 2008
8,155,753 Activity sensing for stimulator control 1 2008
8,150,530 Activity sensing for stimulator control 1 2008
8,337,431 Collecting activity and sleep quality information via a medical device 1 2009
8,755,901 Patient assignment of therapy parameter to posture state 0 2009
8,751,011 Defining therapy parameter values for posture states 0 2009
8,708,934 Reorientation of patient posture states for posture-responsive therapy 0 2009
8,688,225 Posture state detection using selectable system control parameters 0 2009
8,644,945 Patient interaction with posture-responsive therapy 0 2009
8,583,252 Patient interaction with posture-responsive therapy 0 2009
8,515,549 Associating therapy adjustments with intended patient posture states 0 2009
8,515,550 Assignment of therapy parameter to multiple posture states 1 2009
8,447,411 Patient interaction with posture-responsive therapy 0 2009
8,437,861 Posture state redefinition based on posture data and therapy adjustments 0 2009
8,401,666 Modification profiles for posture-responsive therapy 2 2009
8,332,041 Patient interaction with posture-responsive therapy 1 2009
8,323,218 Generation of proportional posture information over multiple time intervals 3 2009
8,326,420 Associating therapy adjustments with posture states using stability timers 0 2009
8,315,710 Associating therapy adjustments with patient posture states 0 2009
8,282,580 Data rejection for posture state analysis 1 2009
8,249,718 Programming posture state-responsive therapy with nominal therapy parameters 0 2009
8,231,555 Therapy system including multiple posture sensors 2 2009
8,231,556 Obtaining baseline patient information 0 2009
8,219,206 Dwell time adjustments for posture state-responsive therapy 2 2009
8,209,028 Objectification of posture state-responsive therapy based on patient therapy adjustments 14 2009
8,200,340 Guided programming for posture-state responsive therapy 2 2009
8,175,720 Posture-responsive therapy control based on patient input 0 2009
8,150,531 Associating therapy adjustments with patient posture states 1 2009
8,190,253 Collecting activity information to evaluate incontinence therapy 0 2009
8,335,568 Controlling therapy based on sleep quality 0 2009
8,280,517 Automatic validation techniques for validating operation of medical devices 0 2009
8,355,783 Distributed lead functionality testing 0 2009
8,521,245 Method and apparatus for post-shock evaluation using tissue oxygenation measurements 0 2009
8,758,242 Collecting sleep quality information via a medical device 0 2010
8,306,618 Method and apparatus for detecting arrhythmias in a medical device 0 2010
8,758,274 Automated adjustment of posture state definitions for a medical device 0 2010
8,388,555 Posture state classification for a medical device 0 2010
8,666,466 Device and method for monitoring of absolute oxygen saturation and tissue hemoglobin concentration 0 2010
8,634,890 Device and method for monitoring of absolute oxygen saturation and tissue hemoglobin concentration 0 2010
8,571,620 Tissue oxygenation monitoring in heart failure 0 2010
8,515,537 Tissue oxygenation monitoring in heart failure 0 2010
8,463,345 Device and method for monitoring of absolute oxygen saturation and total hemoglobin concentration 0 2010
8,463,346 Absolute calibrated tissue oxygen saturation and total hemoglobin volume fraction 1 2010
8,391,979 Shock reduction using absolute calibrated tissue oxygen saturation and total hemoglobin volume fraction 0 2010
8,352,008 Active noise cancellation in an optical sensor signal 0 2010
8,346,332 Absolute calibrated tissue oxygen saturation and total hemoglobin volume fraction 1 2010
8,630,708 Method and apparatus for post-shock evaluation using tissue oxygenation measurements 0 2010
8,447,401 Collecting posture information to evaluate therapy 0 2010
8,579,834 Display of detected patient posture state 0 2011
8,731,656 Closed-loop therapy adjustment 0 2011
8,444,578 Wearable ambulatory data recorder 0 2011
8,332,038 Detecting sleep to evaluate therapy 0 2011
8,457,750 Therapy control using relative motion between sensors 0 2012
8,396,554 Collecting posture information to evaluate therapy 0 2012
8,688,221 Collecting posture and activity information to evaluate therapy 0 2012
8,483,839 Activity sensing for stimulator control 0 2012
8,504,150 Associating therapy adjustments with posture states using a stability timer 0 2012
 
Cardiac Pacemakers, Inc. (63)
6,539,249 Method and apparatus for assessing patient well-being 99 1999
7,226,422 Detection of congestion from monitoring patient response to a recumbent position 29 2002
7,400,928 Methods and devices for detection of context when addressing a medical condition of a patient 61 2002
7,972,275 Method and apparatus for monitoring of diastolic hemodynamics 6 2002
8,192,376 Sleep state classification 4 2003
8,002,553 Sleep quality data collection and evaluation 1 2003
7,248,923 Dual-use sensor for rate responsive pacing and heart sound monitoring 63 2003
7,510,531 System and method for discrimination of central and obstructive disordered breathing events 9 2004
7,559,901 Determining a patient's posture from mechanical vibrations of the heart 50 2004
8,606,356 Autonomic arousal detection system and method 0 2004
7,668,591 Automatic activation of medical processes 3 2004
8,251,061 Methods and systems for control of gas therapy 0 2004
7,970,470 Diagnosis and/or therapy using blood chemistry/expired gas parameter analysis 5 2004
7,591,265 Coordinated use of respiratory and cardiac therapies for sleep disordered breathing 49 2004
7,575,553 Methods and systems for assessing pulmonary disease 4 2004
7,887,493 Implantable device employing movement sensing for detecting sleep-related disorders 4 2004
7,757,690 System and method for moderating a therapy delivered during sleep using physiologic data acquired during non-sleep 1 2004
7,610,094 Synergistic use of medical devices for detecting medical disorders 28 2004
7,967,756 Respiratory therapy control based on cardiac cycle 0 2004
7,664,546 Posture detection system and method 35 2004
7,787,946 Patient monitoring, diagnosis, and/or therapy systems and methods 34 2004
7,662,104 Method for correction of posture dependence on heart sounds 15 2005
7,424,321 Systems and methods for multi-axis cardiac vibration measurements 24 2005
7,922,669 Ischemia detection using a heart sound sensor 16 2005
7,775,983 Rapid shallow breathing detection for use in congestive heart failure status determination 1 2005
8,366,641 Posture detector calibration and use 0 2005
7,471,290 Posture detection system 40 2005
8,108,034 Systems and methods for valvular regurgitation detection 9 2005
7,766,840 Method and system for heart failure status evaluation based on a disordered breathing index 1 2005
7,848,811 Posture sensor 0 2005
7,567,836 ECG signal power vector detection of ischemia or infarction 10 2006
7,780,606 Hemodynamic stability assessment based on heart sounds 14 2006
8,343,049 Physiological response to posture change 1 2006
7,384,395 Detection of congestion from monitoring patient response to a recumbent position 9 2007
7,736,319 Ischemia detection using heart sound timing 16 2007
8,535,222 Sleep detection using an adjustable threshold 0 2007
7,844,336 Implantable medical device configured as a pedometer 4 2007
7,422,560 Detection of congestion from monitoring patient response to a recumbent position 10 2007
7,986,998 Methods and devices for detection of context when addressing a medical condition of a patient 1 2008
7,819,804 Detection of congestion from monitoring patient response to a recumbent position 4 2008
8,165,840 Posture sensor automatic calibration 0 2009
8,012,098 Determining a patient's posture from mechanical vibrations of the heart 2 2009
8,034,000 Ischemia detection using a heart sound sensor 4 2009
8,104,470 Coordinated use of respiratory and cardiac therapies for sleep disordered breathing 0 2009
7,881,781 Thoracic impedance detection with blood resistivity compensation 2 2009
7,951,087 Method for correction of posture dependence on heart sounds 6 2009
8,380,296 Automatic activation of medical processes 0 2009
8,221,327 Therapy control based on cardiopulmonary status 0 2010
8,496,596 Systems and methods for determining respiration metrics 0 2010
8,321,022 Adaptive therapy for disordered breathing 2010
7,938,781 Hemodynamic stability assessment based on heart sounds 6 2010
8,696,589 Method and system for heart failure status evaluation based on a disordered breathing index 0 2010
8,475,388 Detection of disordered breathing 0 2010
7,993,280 Rapid shallow breathing detection for use in congestive heart failure status determination 0 2010
8,249,715 Implantable medical device configured as a pedometer 0 2010
8,636,669 Method and apparatus for monitoring of diastolic hemodynamics 1 2011
8,657,756 Implantable device employing movement sensing for detecting sleep-related disorders 0 2011
8,483,818 Enhancements to the detection of pulmonary edema when using transthoracic impedance 0 2011
8,676,336 Methods and devices for detection of context when addressing a medical condition of a patient 0 2011
8,758,260 Ischemia detection using a heart sound sensor 0 2011
8,522,779 Coordinated use of respiratory and cardiac therapies for sleep disordered breathing 0 2012
8,753,276 Physiological response to posture change 0 2012
8,600,502 Sleep state classification 0 2012
 
SOTERA WIRELESS, INC. (17)
8,738,118 Cable system for generating signals for detecting motion and measuring vital signs 0 2009
8,672,854 System for calibrating a PTT-based blood pressure measurement using arm height 0 2009
8,475,370 Method for measuring patient motion, activity level, and posture along with PTT-based blood pressure 0 2009
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8,554,297 Body-worn pulse oximeter 0 2009
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8,437,824 Body-worn pulse oximeter 0 2009
8,527,038 Body-worn vital sign monitor 0 2009
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8,602,997 Body-worn system for measuring continuous non-invasive blood pressure (cNIBP) 0 2009
8,747,330 Body-worn monitor for measuring respiratory rate 0 2010
8,727,977 Body-worn vital sign monitor 0 2010
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8,594,776 Alarm system that processes both motion and vital signs using specific heuristic rules and thresholds 0 2012
 
DP TECHNOLOGIES, INC. (12)
7,653,508 Human activity monitoring device 25 2006
8,620,353 Automatic sharing and publication of multimedia from a mobile device 0 2007
7,753,861 Chest strap having human activity monitoring device 15 2007
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7,647,196 Human activity monitoring device with distance calculation 22 2007
8,320,578 Headset 3 2008
8,187,182 Sensor fusion for activity identification 5 2008
7,788,059 Rotational insensitivity using gravity-based adjustments 5 2008
8,285,344 Method and apparatus for adjusting audio for a user environment 0 2009
7,881,902 Human activity monitoring device 19 2010
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8,568,310 Sensor fusion for activity identification 0 2012
 
PACESETTER, INC. (12)
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7,225,023 System and method for modulating the pacing rate based on patient activity and position 2 2001
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6,937,900 AC/DC multi-axis accelerometer for determining patient activity and body position 79 2002
7,054,687 Method and apparatus for position and motion sensing 33 2002
7,149,579 System and method for determining patient posture based on 3-D trajectory using an implantable medical device 49 2002
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7,949,400 Devices and methods for cardiovascular reflex control via coupled electrodes 6 2009
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8,718,789 Electrode structures and methods for their use in cardiovascular reflex control 0 2010
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THE INVENTION SCIENCE FUND I, LLC (7)
8,409,132 implant information 0 2007
8,636,670 Circulatory monitoring systems and methods 0 2008
8,403,881 Circulatory monitoring systems and methods 0 2008
8,317,776 Circulatory monitoring systems and methods 0 2008
8,439,896 Device, system, and method for targeted delivery of anti-inflammatory medicaments to a mammalian subject 0 2009
8,444,622 Device, system, and method for targeted delivery of anti-inflammatory medicaments to a mammalian subject 0 2010
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KERSH RISK MANAGEMENT, INC. (2)
7,717,866 Portable device comprising an acceleration sensor and method of generating instructions or advice 6 2002
7,676,332 System and method for processing raw activity energy expenditure data 0 2007
 
KERSH RISK MANAGEMENT, L.L.C. (2)
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7,712,365 Accelerometer for data collection and communication 0 2008
 
BOSTON SCIENTIFIC NEUROMODULATION CORPORATION (1)
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6,259,948 Medical device 81 1998
 
Intravascular Research Limited (1)
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LOCKHEED MARTIN CORPORATION (1)
6,909,985 Method and apparatus for recording changes associated with acceleration of a structure 2 2002
 
LORD CORPORATION (1)
7,698,830 Posture and body movement measuring system 35 2007
 
MEDIACELL LICENSING CORP (1)
7,819,816 Periodic disordered breathing detection 0 2006
 
MICOSOSTRAIN, INC. (1)
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PACESETTER AB (1)
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SEAGATE TECHNOLOGY LLC (1)
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ULTIMATE BALANCE, INC. (1)
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Other [Check patent profile for assignment information] (3)
8,788,055 Multi-location posture sensing 0 2007
8,747,336 Personal emergency response (PER) system 0 2013
8,784,309 Sensor fusion for activity identification 0 2013

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