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

8 Status Updates

Stats

ATTORNEY / AGENT: (SPONSORED)
 

Importance

Loading Importance Indicators... loading....

Abstract

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.

Loading the Abstract Image... loading....

First Claim

Related Publications

Loading Related Publications... loading....

Patent Owner(s)

Patent OwnerAddressTotal Patents
MEDTRONIC, INC.MINNEAPOLIS, MN4903

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sheldon, Todd J North Oaks, MN 97 1322

Cited Art

Patent Info (Count) # Cites Year
 
MEDTRONIC, INC. (8)
4,374,382 Marker channel telemetry system for a medical device 195 1981
4,428,378 Rate adaptive pacer 282 1981
4,556,063 Telemetry system for a medical device 380 1984
5,031,618 Position-responsive neuro stimulator 166 1990
5,226,413 Rate responsive pacemaker and method for automatically initializing the same 64 1990
5,233,984 Implantable multi-axis position and activity sensor 95 1991
5,127,404 Telemetry format for implanted medical device 319 1991
5,318,596 Activity sensing pacemaker 20 1991
 
ADVANCED MEDICAL DEVICES, S.A. (1)
5,354,317 Apparatus and method for cardiac pacing responsive to patient position 86 1992
 
ALT, ECKHARD (1)
5,342,404 Implantable medical interventional device 58 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 35 1978
 
PACESETTER AB (1)
4,869,251 Implantable heart pacemaker with a sensor for inertial and/or rotational movements of the user 21 1988
 
PACESETTER, INC. (1)
5,010,893 Motion sensor for implanted medical device 70 1988

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
MEDTRONIC, INC. (86)
6,120,467 Spinal cord simulation systems with patient activity monitoring and therapy adjustments 107 1998
6,044,297 Posture and device orientation and calibration for implantable medical devices 190 1998
6,440,090 Spinal cord simulation systems with patient activity monitoring and therapy adjustments 100 2000
6,731,976 Device and method to measure and communicate body parameters 219 2001
7,010,344 Method and apparatus for delaying a ventricular tachycardia therapy 7 2002
8,396,565 Automatic therapy adjustments 0 2003
6,964,641 Implantable medical device with sleep disordered breathing monitoring 81 2003
7,717,848 Collecting sleep quality information via a medical device 28 2004
7,491,181 Collecting activity and sleep quality information via a medical device 24 2004
7,395,113 Collecting activity information to evaluate therapy 30 2004
7,366,572 Controlling therapy based on sleep quality 27 2004
7,330,760 Collecting posture information to evaluate therapy 26 2004
7,775,993 Detecting sleep 4 2005
7,590,455 Controlling therapy based on sleep quality 19 2005
7,542,803 Sensitivity analysis for selecting therapy parameter sets 28 2005
7,447,545 Collecting posture information to evaluate therapy 24 2005
7,167,743 Collecting activity information to evaluate therapy 60 2005
7,313,440 Collecting posture and activity information to evaluate therapy 49 2005
7,406,351 Activity sensing for stimulator control 23 2005
7,389,147 Therapy delivery mode selection 21 2005
7,519,409 Implantable cell/tissue-based biosensing device 0 2005
7,496,409 Implantable medical device system and method with signal quality monitoring and response 7 2006
8,021,299 Correlating a non-polysomnographic physiological parameter set with sleep states 2 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 3 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 4 2006
7,853,322 Closed-loop therapy adjustment 2 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 5 2006
7,742,812 Method and apparatus for detecting arrhythmias in a medical device 1 2006
7,734,333 Method and apparatus for detecting arrhythmias in a medical device 0 2006
7,647,095 Method and apparatus for verifying a determined cardiac event in a medical device based on detected variation in hemodynamic status 2 2006
7,623,919 Distributed lead functionality testing 19 2006
7,991,471 Method and apparatus for detecting arrhythmias in a subcutaneous medical device 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 0 2006
7,957,809 Closed-loop therapy adjustment 2 2006
7,894,894 Method and apparatus for detecting arrhythmias in a subcutaneous medical device 5 2007
7,647,121 Therapy delivery mode selection 2 2007
8,308,661 Collecting activity and sleep quality information via a medical device 0 2007
8,135,473 Collecting posture and activity information to evaluate therapy 0 2007
8,055,348 Detecting sleep to evaluate therapy 2 2007
8,032,224 Sensitivity analysis for selecting therapy parameter sets 1 2007
7,881,798 Controlling therapy based on sleep quality 1 2007
7,805,196 Collecting activity information to evaluate therapy 3 2007
7,792,583 Collecting posture information to evaluate therapy 25 2007
7,590,453 Collecting activity information to evaluate incontinence therapy 23 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 1 2007
7,774,049 Method and apparatus for determining oversensing in a medical device 5 2007
8,103,351 Therapy control using relative motion between sensors 0 2007
8,204,597 Evaluating patient incontinence 0 2007
7,908,013 Collecting activity information to evaluate therapy 2 2008
7,996,070 Template matching method for monitoring of ECG morphology changes 2 2008
8,155,753 Activity sensing for stimulator control 0 2008
8,150,530 Activity sensing for stimulator control 0 2008
8,337,431 Collecting activity and sleep quality information via a medical device 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 0 2009
8,332,041 Patient interaction with posture-responsive therapy 0 2009
8,323,218 Generation of proportional posture information over multiple time intervals 0 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 0 2009
8,249,718 Programming posture state-responsive therapy with nominal therapy parameters 0 2009
8,231,555 Therapy system including multiple posture sensors 0 2009
8,231,556 Obtaining baseline patient information 0 2009
8,219,206 Dwell time adjustments for posture state-responsive therapy 0 2009
8,209,028 Objectification of posture state-responsive therapy based on patient therapy adjustments 1 2009
8,200,340 Guided programming for posture-state responsive therapy 0 2009
8,175,720 Posture-responsive therapy control based on patient input 0 2009
8,150,531 Associating therapy adjustments with patient posture states 0 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
8,306,618 Method and apparatus for detecting arrhythmias in a medical device 0 2010
8,388,555 Posture state classification for a medical device 0 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 0 2010
8,332,038 Detecting sleep to evaluate therapy 0 2011
8,396,554 Collecting posture information to evaluate therapy 0 2012
 
CARDIAC PACEMAKERS, INC. (50)
6,539,249 Method and apparatus for assessing patient well-being 77 1999
7,226,422 Detection of congestion from monitoring patient response to a recumbent position 22 2002
7,400,928 Methods and devices for detection of context when addressing a medical condition of a patient 46 2002
7,972,275 Method and apparatus for monitoring of diastolic hemodynamics 1 2002
8,192,376 Sleep state classification 0 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 40 2003
7,510,531 System and method for discrimination of central and obstructive disordered breathing events 8 2004
7,559,901 Determining a patient's posture from mechanical vibrations of the heart 32 2004
7,668,591 Automatic activation of medical processes 1 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 2 2004
7,591,265 Coordinated use of respiratory and cardiac therapies for sleep disordered breathing 26 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 3 2004
7,757,690 System and method for moderating a therapy delivered during sleep using physiologic data acquired during non-sleep 0 2004
7,610,094 Synergistic use of medical devices for detecting medical disorders 15 2004
7,967,756 Respiratory therapy control based on cardiac cycle 0 2004
7,664,546 Posture detection system and method 23 2004
7,787,946 Patient monitoring, diagnosis, and/or therapy systems and methods 11 2004
7,662,104 Method for correction of posture dependence on heart sounds 9 2005
7,424,321 Systems and methods for multi-axis cardiac vibration measurements 14 2005
7,922,669 Ischemia detection using a heart sound sensor 8 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 27 2005
8,108,034 Systems and methods for valvular regurgitation detection 3 2005
7,766,840 Method and system for heart failure status evaluation based on a disordered breathing index 0 2005
7,848,811 Posture sensor 0 2005
7,567,836 ECG signal power vector detection of ischemia or infarction 7 2006
7,780,606 Hemodynamic stability assessment based on heart sounds 7 2006
8,343,049 Physiological response to posture change 0 2006
7,384,395 Detection of congestion from monitoring patient response to a recumbent position 5 2007
7,736,319 Ischemia detection using heart sound timing 9 2007
7,844,336 Implantable medical device configured as a pedometer 3 2007
7,422,560 Detection of congestion from monitoring patient response to a recumbent position 8 2007
7,986,998 Methods and devices for detection of context when addressing a medical condition of a patient 0 2008
7,819,804 Detection of congestion from monitoring patient response to a recumbent position 2 2008
8,165,840 Posture sensor automatic calibration 0 2009
8,012,098 Determining a patient's posture from mechanical vibrations of the heart 0 2009
8,034,000 Ischemia detection using a heart sound sensor 2 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 1 2009
7,951,087 Method for correction of posture dependence on heart sounds 0 2009
8,380,296 Automatic activation of medical processes 0 2009
8,221,327 Therapy control based on cardiopulmonary status 0 2010
8,321,022 Adaptive therapy for disordered breathing 2010
7,938,781 Hemodynamic stability assessment based on heart sounds 2 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
 
PACESETTER, INC. (11)
6,351,672 System and method for modulating the pacing rate based on patient activity and position 75 1999
6,477,421 Method and apparatus for position and motion sensing 13 2000
7,225,023 System and method for modulating the pacing rate based on patient activity and position 2 2001
6,968,232 Method and apparatus for using a rest mode indicator to automatically adjust control parameters of an implantable cardiac stimulation device 0 2002
7,117,036 Using activity-based rest disturbance as a metric of sleep apnea 54 2002
6,937,900 AC/DC multi-axis accelerometer for determining patient activity and body position 56 2002
7,054,687 Method and apparatus for position and motion sensing 22 2002
7,149,579 System and method for determining patient posture based on 3-D trajectory using an implantable medical device 32 2002
7,149,584 System and method for determining patient posture based on 3-D trajectory using an implantable medical device 24 2002
7,130,689 Methods and systems for optimizing cardiac pacing intervals for various physiologic factors 30 2004
7,756,580 Methods and systems for optimizing cardiac pacing intervals for various physiologic factors 0 2006
 
DP TECHNOLOGIES, INC. (8)
7,653,508 Human activity monitoring device 8 2006
7,753,861 Chest strap having human activity monitoring device 7 2007
7,647,196 Human activity monitoring device with distance calculation 8 2007
8,320,578 Headset 1 2008
8,187,182 Sensor fusion for activity identification 0 2008
7,788,059 Rotational insensitivity using gravity-based adjustments 1 2008
8,285,344 Method and apparatus for adjusting audio for a user environment 0 2009
7,881,902 Human activity monitoring device 5 2010
 
CVRX, INC. (6)
8,086,314 Devices and methods for cardiovascular reflex control 1 2002
7,840,271 Stimulus regimens for cardiovascular reflex control 20 2005
8,290,595 Method and apparatus for stimulation of baroreceptors in pulmonary artery 0 2006
8,060,206 Baroreflex modulation to gradually decrease blood pressure 1 2006
7,813,812 Baroreflex stimulator with integrated pressure sensor 1 2006
7,949,400 Devices and methods for cardiovascular reflex control via coupled electrodes 1 2009
 
THE INVENTION SCIENCE FUND I, LLC (4)
8,409,132 implant information 0 2007
8,403,881 Circulatory monitoring systems and methods 0 2008
8,317,776 Circulatory monitoring systems and methods 0 2008
8,419,707 Device, system, and method for targeted delivery of anti-inflammatory medicaments to a mammalian subject 0 2010
 
SOTERA WIRELESS, INC. (3)
8,437,824 Body-worn pulse oximeter 0 2009
8,364,250 Body-worn vital sign monitor 0 2009
8,321,004 Body-worn vital sign monitor 2009
 
KERSH RISK MANAGEMENT, INC. (2)
7,717,866 Portable device comprising an acceleration sensor and method of generating instructions or advice 3 2002
7,676,332 System and method for processing raw activity energy expenditure data 0 2007
 
CAIS, INC. {50%} (1)
6,259,948 Medical device 64 1998
 
INTRAVASCULAR RESEARCH LIMITED (1)
6,275,724 Medical ultrasonic imaging 26 1998
 
JAMES, TERRY L. (1)
7,712,365 Accelerometer for data collection and communication 0 2008
 
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 13 2007
 
MEDIACELL LICENSING CORP (1)
7,819,816 Periodic disordered breathing detection 0 2006
 
MICOSOSTRAIN, INC. (1)
6,834,436 Posture and body movement measuring system 76 2002
 
PACESETTER AB (1)
5,865,760 System for detecting changes in body posture 45 1997
 
SALASOFT, INC. (1)
6,516,749 Apparatus for the delivery to an animal of a beneficial agent 24 1999
 
SEAGATE TECHNOLOGY LLC (1)
6,318,176 Rotational inductive accelerometer 9 2000
 
ULTIMATE BALANCE, INC. (1)
7,634,379 Newtonian physical activity monitor 21 2008
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (6)
7,373,820 Accelerometer for data collection and communication 21 2004
8,447,411 Patient interaction with posture-responsive therapy 0 2009
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
8,447,401 Collecting posture information to evaluate therapy 0 2010
8,444,578 Wearable ambulatory data recorder 0 2011