US Patent No: 7,454,240

Number of patents in Portfolio can not be more than 2000

Signal processing apparatus

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Abstract

The present invention involves a method and an apparatus for analyzing measured signals, including the determination of a measurement of correlation in the measured signals during a calculation of a physiological parameter of a monitored patient. Use of this invention is described in particular detail with respect to blood oximetry measurements.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
MASIMO CORPORATIONIRVINE, CA267

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Diab, Mohamed K Laguna Niguel, CA 135 12464
Elfadel, Ibrahim M Laguna Niguel, CA 91 3873
Kiani-Azarbayjany, Esmaiel Laguna Niguel, CA 68 8138
McCarthy, Rex J Mission Viejo, CA 43 3805
Smith, Robert A Corona, CA 200 6869
Weber, Walter M Los Angeles, CA 101 7797

Cited Art

Patent Info (Count) # Cites Year
 
MASIMO CORPORATION (125)
4,960,128 Method and apparatus for continuously and non-invasively measuring the blood pressure of a patient 188 1988
5,163,438 Method and apparatus for continuously and noninvasively measuring the blood pressure of a patient 193 1990
5,431,170 Pulse responsive device 385 1992
5,494,043 Arterial sensor 247 1993
5,337,744 Low noise finger cot probe 328 1993
5,490,505 Signal processing apparatus 412 1993
5,533,511 Apparatus and method for noninvasive blood pressure measurement 261 1994
5,590,649 Apparatus and method for measuring an induced perturbation to determine blood pressure 202 1994
D361840 Stethoscope head 126 1994
D362063 Stethoscope headset 123 1994
D363120 Stethoscope ear tip 128 1994
5,482,036 Signal processing apparatus and method 377 1994
5,452,717 Finger-cot probe 315 1994
5,632,272 Signal processing apparatus 388 1994
5,638,818 Low noise optical probe 304 1994
5,758,644 Manual and automatic probe calibration 384 1995
5,769,785 Signal processing apparatus and method 317 1995
5,645,440 Patient cable connector 288 1995
D393830 Patient cable connector 276 1995
5,782,757 Low-noise optical probes 337 1995
5,810,734 Apparatus and method for measuring an induced perturbation to determine a physiological parameter 184 1995
5,830,131 Apparatus and method for measuring an induced perturbation to determine a physical condition of the human arterial system 205 1995
5,833,618 Apparatus and method for measuring an induced perturbation to determine a physiological parameter 192 1995
5,685,299 Signal processing apparatus 313 1995
5,904,654 Exciter-detector unit for measuring physiological parameters 192 1996
5,785,659 Automatically activated blood pressure measurement device 179 1996
5,823,950 Manual and automatic probe calibration 276 1996
6,088,607 Low noise optical probe 336 1997
5,934,925 Patient cable connector 280 1997
6,002,952 Signal processing apparatus and method 353 1997
6,157,850 Signal processing apparatus 309 1997
5,890,929 Shielded medical connector 273 1997
6,081,735 Signal processing apparatus 421 1997
6,263,222 Signal processing apparatus 324 1997
6,184,521 Photodiode detector with integrated noise shielding 278 1998
5,919,134 Method and apparatus for demodulating signals in a pulse oximetry system 296 1998
6,011,986 Manual and automatic probe calibration 325 1998
5,995,855 Pulse oximetry sensor adapter 316 1998
6,525,386 Non-protruding optoelectronic lens 285 1998
5,997,343 Patient cable sensor switch 267 1998
6,229,856 Method and apparatus for demodulating signals in a pulse oximetry system 273 1998
6,067,462 Signal processing apparatus and method 311 1998
6,256,523 Low-noise optical probes 324 1998
6,036,642 Signal processing apparatus and method 301 1998
7,328,053 Signal processing apparatus 91 1998
6,236,872 Signal processing apparatus 291 1998
6,144,868 Reusable pulse oximeter probe and disposable bandage apparatus 229 1999
6,334,065 Stereo pulse oximeter 307 1999
6,285,896 Fetal pulse oximetry sensor 272 1999
6,321,100 Reusable pulse oximeter probe with disposable liner 218 1999
6,349,228 Pulse oximetry sensor adapter 281 1999
6,632,181 Rapid non-invasive blood pressure measuring device 233 1999
6,343,224 Reusable pulse oximeter probe and disposable bandage apparatus 220 1999
6,580,086 Shielded optical probe and method 307 1999
6,943,348 System for detecting injection holding material 141 1999
6,206,830 Signal processing apparatus and method 285 1999
6,165,005 Patient cable sensor switch 262 1999
6,377,829 Resposable pulse oximetry sensor 297 1999
6,152,754 Circuit board based cable connector 287 1999
6,463,311 Plethysmograph pulse recognition processor 263 1999
6,606,511 Pulse oximetry pulse indicator 289 2000
6,515,273 System for indicating the expiration of the useful operating life of a pulse oximetry sensor 280 2000
6,584,336 Universal/upgrading pulse oximeter 299 2000
6,360,114 Pulse oximeter probe-off detector 296 2000
6,699,194 Signal processing apparatus and method 287 2000
6,430,525 Variable mode averager 266 2000
6,526,300 Pulse oximeter probe-off detection system 260 2000
6,470,199 Elastic sock for positioning an optical probe 273 2000
6,697,656 Pulse oximetry sensor compatible with multiple pulse oximetry systems 258 2000
6,770,028 Dual-mode pulse oximeter 269 2000
6,519,487 Reusable pulse oximeter probe and disposable bandage apparatus 220 2000
6,280,213 Patient cable connector 278 2000
6,542,764 Pulse oximeter monitor for expressing the urgency of the patient's condition 266 2000
6,643,530 Method and apparatus for demodulating signals in a pulse oximetry system 262 2000
6,501,975 Signal processing apparatus and method 312 2001
6,684,091 Reusable pulse oximeter probe and disposable bandage method 213 2001
6,541,756 Shielded optical probe having an electrical connector 275 2001
6,388,240 Shielded optical probe and method having a longevity indication 292 2001
6,684,090 Pulse oximetry data confidence indicator 299 2001
6,792,300 Low-noise optical probes for reducing light piping 254 2001
6,595,316 Tension-adjustable mechanism for stethoscope earpieces 132 2001
6,721,585 Universal modular pulse oximeter probe for use with reusable and disposable patient attachment devices 212 2001
6,597,933 Pulse oximetry sensor adapter 270 2001
6,678,543 Optical probe and positioning wrap 319 2001
6,745,060 Signal processing apparatus 269 2001
6,650,917 Signal processing apparatus 299 2001
6,671,531 Sensor wrap including foldable applicator 286 2001
6,654,624 Pulse oximeter probe-off detector 287 2001
6,760,607 Ribbon cable substrate pulse oximetry sensor 243 2001
6,714,804 Stereo pulse oximeter 272 2001
6,852,083 System and method of determining whether to recalibrate a blood pressure monitor 166 2002
6,658,276 Pulse oximeter user interface 279 2002
RE38492 Signal processing apparatus and method 261 2002
6,725,075 Resposable pulse oximetry sensor 268 2002
6,985,764 Flex circuit shielded optical sensor 222 2002
6,697,658 Low power pulse oximeter 283 2002
6,661,161 Piezoelectric biological sound monitor with printed circuit board 143 2002
RE38476 Signal processing apparatus 257 2002
6,999,904 Variable indication estimator 140 2002
6,735,459 Reusable pulse oximeter probe and disposable bandage apparatus 214 2002
6,813,511 Low-noise optical probes for reducing ambient noise 262 2002
6,816,741 Plethysmograph pulse recognition processor 249 2002
6,934,570 Physiological sensor combination 237 2002
6,826,419 Signal processing apparatus and method 248 2002
6,830,711 Mold tool for an optoelectronic element 245 2003
6,822,564 Parallel measurement alarm processor 252 2003
6,950,687 Isolation and communication element for a resposable pulse oximetry sensor 234 2003
7,015,451 Power supply rail controller 130 2003
6,861,639 Systems and methods for indicating an amount of use of a sensor 246 2003
6,771,994 Pulse oximeter probe-off detection system 256 2003
6,850,788 Physiological measurement communications adapter 240 2003
6,993,371 Pulse oximetry sensor adaptor 243 2003
6,898,452 Stereo pulse oximeter 231 2003
7,254,433 Signal processing apparatus 174 2003
6,939,305 Rapid non-invasive blood pressure measuring device 139 2003
7,003,339 Method and apparatus for demodulating signals in a pulse oximetry system 210 2003
6,996,427 Pulse oximetry data confidence indicator 247 2003
7,039,449 Resposable pulse oximetry sensor 215 2003
7,215,984 Signal processing apparatus 218 2004
7,024,233 Pulse oximetry data confidence indicator 220 2004
7,030,749 Parallel measurement alarm processor 150 2004
6,979,812 Systems and methods for indicating an amount of use of a sensor 207 2005
2005/0209,517 Signal processing apparatus 33 2005
7,215,986 Signal processing apparatus 113 2005
2007/0225,581 SIGNAL PROCESSING APPARATUS 33 2007
 
NELLCOR PURITAN BENNETT INCORPORATED (19)
4,802,486 Method and apparatus for detecting optical pulses 184 1985
4,653,498 Pulse oximeter monitor 309 1986
4,800,495 Method and apparatus for processing signals used in oximetry 208 1986
4,819,646 Feedback-controlled method and apparatus for processing signals used in oximetry 133 1986
4,859,056 Multiple-pulse method and apparatus for use in oximetry 120 1986
4,869,253 Method and apparatus for indicating perfusion and oxygen saturation trends in oximetry 188 1986
4,913,150 Method and apparatus for the automatic calibration of signals employed in oximetry 227 1986
4,869,254 Method and apparatus for calculating arterial oxygen saturation 236 1988
4,911,167 Method and apparatus for detecting optical pulses 262 1988
4,928,692 Method and apparatus for detecting optical pulses 187 1988
4,892,101 Method and apparatus for offsetting baseline portion of oximeter signal 162 1989
4,934,372 Method and apparatus for detecting optical pulses 207 1989
5,259,381 Apparatus for the automatic calibration of signals employed in oximetry 184 1989
5,246,002 Noise insensitive pulse transmittance oximeter 148 1992
RE35122 Method and apparatus for detecting optical pulses 149 1992
5,368,026 Oximeter with motion detection for alarm modification 167 1993
5,853,364 Method and apparatus for estimating physiological parameters using model-based adaptive filtering 231 1996
6,083,172 Method and apparatus for estimating physiological parameters using model-based adaptive filtering 161 1998
6,411,833 Method and apparatus for estimating physiological parameters using model-based adaptive filtering 137 1999
 
CERCACOR LABORATORIES, INC. (15)
5,638,816 Active pulse blood constituent monitoring 278 1995
5,743,262 Blood glucose monitoring system 456 1995
5,760,910 Optical filter for spectroscopic measurement and method of producing the optical filter 262 1995
5,860,919 Active pulse blood constituent monitoring method 293 1997
6,110,522 Blood glucose monitoring system 189 1998
5,940,182 Optical filter for spectroscopic measurement and method of producing the optical filter 262 1998
6,151,516 Active pulse blood constituent monitoring 245 1998
6,278,522 Optical filter for spectroscopic measurement and method of producing the optical filter 262 1999
6,931,268 Active pulse blood constituent monitoring 144 2000
6,640,116 Optical spectroscopy pathlength measurement system 234 2001
6,920,345 Optical sensor including disposable and reusable elements 227 2003
6,961,598 Pulse and active pulse spectraphotometry 191 2003
7,003,338 Method and apparatus for reducing coupling between signals 203 2003
7,027,849 Blood parameter measurement system 242 2003
6,970,792 Systems and methods for determining blood oxygen saturation values using complex number encoding 144 2003
 
MINOLTA CAMERA KABUSHIKI KAISHA (7)
4,266,554 Digital oximeter 180 1979
4,305,398 Eye fundus oximeter 69 1979
4,446,871 Optical analyzer for measuring a construction ratio between components in the living tissue 109 1980
4,586,513 Noninvasive device for photoelectrically measuring the property of arterial blood 180 1983
4,714,341 Multi-wavelength oximeter having a means for disregarding a poor signal 261 1985
4,694,833 Noninvasive device for photoelectrically measuring the property of arterial blood 151 1986
4,942,877 Device for measuring oxygen saturation degree in arterial blood 252 1987
 
CARDIAC PACEMAKERS, INC. (3)
4,793,361 Dual channel P-wave detection in surface electrocardiographs 67 1987
4,799,486 Refractoriless atrial sensing in dual chamber pacemakers 81 1987
4,799,493 Dual channel coherent fibrillation detection system 135 1987
 
CRITICARE SYSTEMS, INC. (3)
4,860,759 Vital signs monitor 106 1987
4,960,126 ECG synchronized pulse oximeter 186 1988
5,842,981 Direct to digital oximeter 175 1996
 
CURATECHNOLOGIES INC. (3)
D353195 Electronic stethoscope housing 123 1993
D353196 Stethoscope head 133 1993
5,602,924 Electronic stethescope 131 1993
 
THOR TECHNOLOGY CORPORATION (3)
4,964,408 Oximeter sensor assembly with integral cable 263 1988
5,069,213 Oximeter sensor assembly with integral cable and encoder 232 1989
5,041,187 Oximeter sensor assembly with integral cable and method of forming the same 200 1990
 
COROMETRICS MEDICAL SYSTEMS, INC. (2)
4,519,396 Fetal heart rate monitor apparatus and method for combining electrically and mechanically derived cardiographic signals 51 1981
4,582,068 Systems and methods for processing physiological signals 23 1984
 
DATEX-OHMEDA, INC. (2)
4,800,885 Blood constituent monitoring apparatus and methods with frequency division multiplexing 195 1987
5,934,277 System for pulse oximetry SpO2 determination 163 1995
 
JOHNSON & JOHNSON MEDICAL, INC. (2)
4,848,901 Pulse oximeter sensor control system 181 1987
4,807,631 Pulse oximetry system 170 1987
 
SENSORMEDICS CORPORATION (2)
4,824,242 Non-invasive oximeter and method 245 1986
4,867,571 Wave form filter pulse detector and method for modulated signal 87 1989
 
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY (2)
4,238,746 Adaptive line enhancer 85 1978
4,243,935 Adaptive detector 62 1979
 
VITAL INSITE, INC. (2)
6,045,509 Apparatus and method for measuring an induced perturbation to determine a physiological parameter 176 1998
6,371,921 System and method of determining whether to recalibrate a blood pressure monitor 249 1999
 
ALLEGHENY-SINGER RESEARCH INSTITUTE (1)
4,751,931 Method and apparatus for determining his-purkinje activity 70 1986
 
ARRHYTHMIA RESEARCH TECHNOLOGY, INC. (1)
4,458,691 System and method for predicting ventricular tachycardia by adaptive high pass filter 66 1982
 
BRITISH TECHNOLOGY GROUP LIMITED (1)
4,951,680 Fetal monitoring during labor 47 1988
 
CARDIO ACCESS LLC (1)
4,819,752 Blood constituent measuring device and method 230 1987
 
COLIN ELECTRONICS CO., LTD. (1)
4,796,636 Noninvasive reflectance oximeter 145 1987
 
COLIN MEDICAL TECHNOLOGY CORPORATION (1)
5,054,495 Automatic blood-pressure measuring apparatus 69 1989
 
COVIDIEN LP (1)
6,701,170 Blind source separation of pulse oximetry signals 138 2001
 
E FOR M CORPORATION (1)
5,273,036 Apparatus and method for monitoring respiration 183 1993
 
ERICSSON INC. (1)
4,649,505 Two-input crosstalk-resistant adaptive noise canceller 153 1984
 
FIRST BANK NATIONAL ASSOCIATION (1)
4,773,422 Single channel pulse oximeter 208 1987
 
INVIVO RESEARCH, INC. (1)
4,948,248 Blood constituent measuring device and method 158 1989
 
KONINKLIJKE PHILIPS ELECTRONICS N.V. (1)
4,667,680 Apparatus and method for reduction in respiration artifact in pulmonary artery pressure measurement 31 1983
 
LIFE FITNESS, A GENERAL PARTNERSHIP OF NY (1)
5,243,993 Apparatus and method for measuring heart rate 60 1991
 
MASIMO LABORATORIES, INC. (1)
6,850,787 Signal component processor 237 2002
 
MASSACHUSETTS INSTITUTE OF TECHNOLOGY (1)
4,956,867 Adaptive beamforming for noise reduction 121 1989
 
MESSER GRIESHEIM GMBH (1)
4,967,571 Device for the cryogenic pelletization of liquids 43 1989
 
MOBIL OIL CORPORATION (1)
4,858,199 Method and apparatus for cancelling nonstationary sinusoidal noise from seismic data 35 1988
 
MSA (1)
4,863,265 Apparatus and method for measuring blood constituents 222 1987
 
NATIONAL INSTITUTES OF HEALTH (NIH), U.S. DEPT. OF HEALTH AND HUMAN SERVICES (DHHS), U.S. GOVERNMENT (1)
6,397,091 Manual and automatic probe calibration 313 1999
 
NATIONAL RESEARCH DEVELOPMENT CORPORATION (1)
4,955,379 Motion artefact rejection system for pulse oximeters 187 1988
 
NEC CORPORATION (1)
4,723,294 Noise canceling system 63 1986
 
NICOLAY GMBH (1)
4,907,594 Method for the determination of the saturation of the blood of a living organism with oxygen and electronic circuit for performing this method 99 1988
 
OMRON TATEISI ELECTRONICS CO. (1)
4,927,264 Non-invasive measuring method and apparatus of blood constituents 201 1988
 
OTSUKA ELECTRONICS CO., LTD. (1)
5,057,695 Method of and apparatus for measuring the inside information of substance with the use of light scattering 164 1989
 
PROTOCOL SYSTEMS, INC. (1)
4,949,710 Method of artifact rejection for noninvasive blood-pressure measurement by prediction and adjustment of blood-pressure data 93 1988
 
PURITAN-BENNETT CORPORATION (1)
4,883,353 Pulse oximeter 159 1988
 
RCA LICENSING CORPORATION, TWO INDEPENDENCE WAY, PRINCETON, NJ 08540, A CORP. OF DE (1)
4,617,589 Adaptive frame comb filter system 40 1984
 
SANDIA CORPORATION (1)
5,494,032 Oximeter for reliable clinical determination of blood oxygen saturation in a fetus 234 1994
 
SANKYO COMPANY, LIMITED (1)
5,379,774 Measurement of arterial elasticity and the frequency characteristic of the compliance of an artery 32 1994
 
SENSIDYNE, INC. (1)
5,562,002 Positive displacement piston flow meter with damping assembly 122 1995
 
SONY DEUTSCHLAND GMBH (1)
2005/0200,531 Circular polarised array antenna 2005
 
SPACELABS MEDICAL, LLC (1)
5,662,105 System and method for the extractment of physiological signals 115 1995
 
THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY (1)
4,537,200 ECG enhancement by adaptive cancellation of electrosurgical interference 114 1983
 
THE BOC GROUP, INC. (1)
4,407,290 Blood constituent measuring device and method 284 1981
 
THE PERKIN-ELMER CORPORATION (1)
4,883,356 Spectrometer detector mounting assembly 33 1988
 
U.S. PHILIPS CORPORATION (1)
5,040,201 X-ray exposure synchronization method and apparatus 21 1990
 
UNIVERSITY OF MEDICINE AND DENTISTRY OF NEW JERSEY (1)
5,036,857 Noninvasive diagnostic system for coronary artery disease 66 1989
 
UPS AVIATION TECHNOLOGIES, INC. (1)
5,042,499 Noninvasive electrocardiographic method of real time signal processing for obtaining and displaying instantaneous fetal heart rate and fetal heart rate beat-to-beat variability 64 1990
 
VITA INSITE, INC. (1)
6,027,452 Rapid non-invasive blood pressure measuring device 186 1996
 
VITAL INSIGHT, INC. (1)
5,791,347 Motion insensitive pulse detector 185 1996
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (9)
4,781,200 Ambulatory non-invasive automatic fetal monitoring system 121 1985
5,458,128 Method and apparatus for noninvasively measuring concentration of a dye in arterial blood 78 1994
2004/0068,164 Signal processing apparatus 112 2003
2007/0249,918 SIGNAL PROCESSING APPARATUS 28 2007
2007/0291,832 SIGNAL PROCESSING APPARATUS 30 2007
2008/0004,514 SIGNAL PROCESSING APPARATUS 30 2007
2008/0033,266 Signal processing apparatus 32 2007
2008/0045,823 SIGNAL PROCESSING APPARATUS 29 2007
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 2009

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
MASIMO CORPORATION (31)
7,962,190 Signal processing apparatus 8 1998
8,000,761 Resposable pulse oximetry sensor 8 2006
7,991,446 Systems and methods for acquiring calibration data usable in a pulse oximeter 8 2006
RE41912 Reusable pulse oximeter probe and disposable bandage apparatus 19 2006
8,046,041 Signal processing apparatus 6 2007
8,046,042 Signal processing apparatus 6 2007
8,036,728 Signal processing apparatus 6 2007
8,175,672 Reusable pulse oximeter probe and disposable bandage apparatii 3 2007
8,019,400 Signal processing apparatus 8 2007
8,405,608 System and method for altering a display mode 0 2008
8,274,360 Systems and methods for storing, analyzing, and retrieving medical data 1 2008
8,128,572 Signal processing apparatus 3 2008
7,904,132 Sine saturation transform 14 2008
7,937,130 Signal processing apparatus 8 2008
8,353,842 Portable patient monitor 0 2008
7,873,497 Variable indication estimator 16 2009
8,126,528 Signal processing apparatus 4 2009
8,203,438 Alarm suspend system 2 2009
RE43169 Universal modular pulse oximeter probe for use with reusable and disposable patient attachment devices 5 2009
8,401,602 Secondary-emitter sensor position indicator 0 2009
8,346,330 Reflection-detector sensor position indicator 0 2009
8,418,524 Non-invasive sensor calibration device 0 2010
8,310,336 Systems and methods for storing, analyzing, retrieving and displaying streaming medical data 0 2010
8,430,817 System for determining confidence in respiratory rate measurements 0 2010
RE43860 Reusable pulse oximeter probe and disposable bandage apparatus 0 2010
8,260,577 Variable indication estimator 1 2011
8,228,181 Physiological trend monitor 2 2011
8,399,822 Systems and methods for indicating an amount of use of a sensor 0 2011
8,229,533 Low-noise optical probes for reducing ambient noise 2 2012
8,364,226 Signal processing apparatus 0 2012
8,359,080 Signal processing apparatus 0 2012
 
CERCACOR LABORATORIES, INC. (14)
8,224,411 Noninvasive multi-parameter patient monitor 2 2006
8,190,223 Noninvasive multi-parameter patient monitor 3 2006
8,130,105 Noninvasive multi-parameter patient monitor 6 2006
8,050,728 Multiple wavelength sensor drivers 7 2006
8,423,106 Multi-wavelength physiological monitor 0 2008
8,374,665 Tissue profile wellness monitor 0 2008
7,563,110 Multiple wavelength sensor interconnect 46 2008
D621516 Patient monitoring sensor 24 2008
8,385,996 Multiple wavelength sensor emitters 0 2009
8,437,825 Contoured protrusion for improving spectroscopic measurement of blood constituents 0 2009
8,203,704 Multi-stream sensor for noninvasive measurement of blood constituents 2 2009
8,301,217 Multiple wavelength sensor emitters 0 2009
8,255,027 Multiple wavelength sensor substrate 0 2010
8,428,967 Spot check monitor credit system 0 2011
 
GLT ACQUISITION CORP. (5)
8,219,172 System and method for creating a stable optical interface 0 2006
7,822,452 Method for data reduction and calibration of an OCT-based blood glucose monitor 16 2006
8,036,727 Methods for noninvasively measuring analyte levels in a subject 1 2006
8,204,566 Method and apparatus for monitoring blood constituent levels in biological tissue 1 2007
8,306,596 Method for data reduction and calibration of an OCT-based physiological monitor 0 2010
 
COVIDIEN LP (1)
8,238,994 Adjusting parameters used in pulse oximetry analysis 0 2009

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