US Patent No: 5,482,036

Number of patents in Portfolio can not be more than 2000

Signal processing apparatus and method

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Abstract

A signal processor which acquires a first signal, including a first desired signal portion and a first undesired signal portion, and a second signal, including a second desired signal portion and a second undesired signal portion, wherein the first and second desired signal portions are correlated. The signals may be acquired by propagating energy through a medium and measuring an attenuated signal after transmission or reflection. Alternatively, the signals may be acquired by measuring energy generated by the medium. A processor generates a noise reference signal which is a combination of only the undesired signal portions and is correlated to both the first and second undesired signal portions. The noise reference signal is then used to remove the undesired portion of each of the first and second measured signals via an adaptive noise canceler, preferably of the joint process estimator type. The processor may be employed in conjunction with an adaptive noise canceler in physiological monitors wherein the known properties of energy attenuation through a medium are used to determine physiological characteristics of the medium. Many physiological conditions, such as the pulse of a patient or the concentration of a constituent in a medium, can be determined from the desired portion of the signal after undesired signal portions, such as those caused by erratic motion, are removed.

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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 134 12415
Kiani-Azarbayjany, Esmaiel Laguna Niguel, CA 68 8108

Cited Art

Patent Info (Count) # Cites Year
 
NELLCOR PURITAN BENNETT INCORPORATED (6)
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4,869,253 Method and apparatus for indicating perfusion and oxygen saturation trends in oximetry 188 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
 
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
 
CARDIAC PACEMAKERS, INC. (1)
4,799,493 Dual channel coherent fibrillation detection system 135 1987
 
CRITICARE SYSTEMS, INC. (1)
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E FOR M CORPORATION (1)
5,273,036 Apparatus and method for monitoring respiration 182 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
 
JOHNSON & JOHNSON MEDICAL, INC. (1)
4,848,901 Pulse oximeter sensor control system 181 1987
 
MASSACHUSETTS INSTITUTE OF TECHNOLOGY (1)
4,956,867 Adaptive beamforming for noise reduction 121 1989
 
MSA (1)
4,863,265 Apparatus and method for measuring blood constituents 222 1987
 
NATIONAL RESEARCH DEVELOPMENT CORPORATION (1)
4,955,379 Motion artefact rejection system for pulse oximeters 187 1988
 
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
 
PURITAN-BENNETT CORPORATION (1)
4,883,353 Pulse oximeter 159 1988
 
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

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
MASIMO CORPORATION (140)
6,036,642 Signal processing apparatus and method 300 1998
7,962,190 Signal processing apparatus 8 1998
7,328,053 Signal processing apparatus 89 1998
6,501,975 Signal processing apparatus and method 311 2001
6,745,060 Signal processing apparatus 268 2001
6,650,917 Signal processing apparatus 298 2001
RE38492 Signal processing apparatus and method 260 2002
6,985,764 Flex circuit shielded optical sensor 221 2002
RE38476 Signal processing apparatus 256 2002
6,999,904 Variable indication estimator 138 2002
6,813,511 Low-noise optical probes for reducing ambient noise 261 2002
6,816,741 Plethysmograph pulse recognition processor 248 2002
7,245,953 Reusable pulse oximeter probe and disposable bandage apparatii 106 2002
6,934,570 Physiological sensor combination 236 2002
6,826,419 Signal processing apparatus and method 247 2002
7,225,006 Attachment and optical probe 158 2003
6,950,687 Isolation and communication element for a resposable pulse oximetry sensor 233 2003
6,822,564 Parallel measurement alarm processor 251 2003
6,861,639 Systems and methods for indicating an amount of use of a sensor 245 2003
7,509,494 Interface cable 48 2003
6,850,788 Physiological measurement communications adapter 239 2003
7,428,432 Systems and methods for acquiring calibration data usable in a pulse oximeter 61 2003
7,096,054 Low noise optical housing 188 2003
7,274,955 Parameter compensated pulse oximeter 86 2003
7,496,393 Signal processing apparatus 48 2003
7,254,433 Signal processing apparatus 173 2003
7,142,901 Parameter compensated physiological monitor 178 2003
7,471,969 Pulse oximeter probe-off detector 53 2003
6,996,427 Pulse oximetry data confidence indicator 246 2003
7,039,449 Resposable pulse oximetry sensor 214 2003
7,496,391 Manual and automatic probe calibration 47 2004
7,469,157 Signal processing apparatus 47 2004
7,295,866 Low power pulse oximeter 153 2004
7,471,971 Signal processing apparatus and method 48 2004
7,530,955 Signal processing apparatus 48 2004
7,499,741 Signal processing apparatus and method 56 2004
7,215,984 Signal processing apparatus 217 2004
7,500,950 Multipurpose sensor port 50 2004
7,530,949 Dual-mode pulse oximeter 55 2004
7,254,431 Physiological parameter tracking system 82 2004
7,024,233 Pulse oximetry data confidence indicator 219 2004
7,483,730 Low-noise optical probes for reducing ambient noise 47 2004
7,254,434 Variable pressure reusable sensor 165 2004
7,044,918 Plethysmograph pulse recognition processor 125 2004
7,030,749 Parallel measurement alarm processor 149 2004
7,483,729 Pulse oximeter access apparatus and method 47 2004
7,373,193 Pulse oximetry data capture system 92 2004
7,383,070 Signal processing apparatus 80 2004
7,280,858 Pulse oximetry sensor 166 2005
7,844,314 Physiological measurement communications adapter 16 2005
7,373,194 Signal component processor 73 2005
7,371,981 Connector switch 74 2005
D566282 Stand for a portable patient monitor 72 2005
D554263 Portable patient monitor 86 2005
6,979,812 Systems and methods for indicating an amount of use of a sensor 206 2005
7,438,683 Application identification sensor 57 2005
7,415,297 Physiological parameter system 60 2005
7,292,883 Physiological assessment system 81 2005
7,761,128 Physiological monitor 31 2005
7,215,986 Signal processing apparatus 112 2005
7,937,128 Cyanotic infant sensor 8 2005
7,976,472 Noninvasive hypovolemia monitor 9 2005
7,041,060 Rapid non-invasive blood pressure measuring device 122 2005
7,272,425 Pulse oximetry sensor including stored sensor data 122 2005
7,340,287 Flex circuit shielded optical sensor 73 2005
7,186,966 Amount of use tracking device and method for medical product 117 2005
7,377,794 Multiple wavelength sensor interconnect 73 2006
7,499,835 Variable indication estimator 53 2006
7,937,129 Variable aperture sensor 9 2006
8,046,040 Pulse oximetry data confidence indicator 6 2006
RE41317 Universal modular pulse oximeter probe for use with reusable and disposable patient attachment devices 37 2006
7,190,261 Arrhythmia alarm processor 100 2006
7,618,375 Rapid non-invasive blood pressure measuring device 40 2006
8,000,761 Resposable pulse oximetry sensor 8 2006
8,364,223 Physiological monitor 0 2006
7,988,637 Plethysmograph pulse recognition processor 8 2006
7,899,507 Physiological monitor 20 2006
7,891,355 Physiological monitor 16 2006
7,844,315 Physiological measurement communications adapter 16 2006
7,489,958 Signal processing apparatus and method 57 2006
7,377,899 Sine saturation transform 71 2006
7,894,868 Physiological monitor 15 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
7,454,240 Signal processing apparatus 51 2006
7,332,784 Method of providing an optoelectronic element with a non-protruding lens 72 2006
7,962,188 Robust alarm system 8 2006
7,880,626 System and method for monitoring the life of a physiological sensor 14 2006
7,530,942 Remote sensing infant warmer 47 2006
7,526,328 Manual and automatic probe calibration 47 2006
7,990,382 Virtual display 8 2007
8,182,443 Drug administration controller 3 2007
7,910,875 Systems and methods for indicating an amount of use of a sensor 14 2007
7,355,512 Parallel alarm processor 77 2007
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
8,385,995 Physiological parameter tracking system 0 2007
8,180,420 Signal processing apparatus and method 3 2007
8,019,400 Signal processing apparatus 8 2007
7,734,320 Sensor isolation 35 2007
7,509,154 Signal processing apparatus 54 2007
7,467,002 Sine saturation transform 51 2007
8,315,683 Duo connector patient cable 0 2007
D609193 Connector assembly 41 2007
D587657 Connector assembly 48 2007
8,414,499 Plethysmograph variability processor 0 2007
7,880,606 Physiological trend monitor 18 2008
8,405,608 System and method for altering a display mode 0 2008
D614305 Connector assembly 38 2008
7,919,713 Low noise oximetry cable including conductive cords 8 2008
8,048,040 Fluid titration system 6 2008
8,355,766 Ceramic emitter substrate 0 2008
8,118,620 Connector assembly with reduced unshielded area 3 2008
8,274,360 Systems and methods for storing, analyzing, and retrieving medical data 1 2008
8,337,403 Patient monitor having context-based sensitivity adjustments 0 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 15 2009
8,190,227 Signal processing apparatus and method 3 2009
8,126,528 Signal processing apparatus 4 2009
8,145,287 Manual and automatic probe calibration 3 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
7,951,086 Rapid non-invasive blood pressure measuring device 8 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
 
COVIDIEN LP (110)
6,094,592 Methods and apparatus for estimating a physiological parameter using transforms 152 1998
7,194,293 Selection of ensemble averaging weights for a pulse oximeter based on signal quality metrics 21 2004
7,277,741 Pulse oximetry motion artifact rejection using near infrared absorption by water 21 2004
7,689,259 Pulse oximeter sensor with piece-wise function 2 2004
7,931,599 Method and apparatus for estimating a physiological parameter 0 2005
7,657,294 Compliant diaphragm medical sensor and technique for using the same 6 2005
7,657,295 Medical sensor and technique for using the same 7 2005
8,092,379 Method and system for determining when to reposition a physiological sensor 0 2005
7,904,130 Medical sensor and technique for using the same 1 2005
7,899,510 Medical sensor and technique for using the same 1 2005
7,869,850 Medical sensor for reducing motion artifacts and technique for using the same 2 2005
7,725,146 System and method for pre-processing waveforms 4 2005
7,725,147 System and method for removing artifacts from waveforms 2 2005
8,233,954 Mucosal sensor for the assessment of tissue and blood constituents and technique for using the same 0 2005
8,133,176 Method and circuit for indicating quality and accuracy of physiological measurements 0 2005
8,078,246 Pulse oximeter sensor with piece-wise function 0 2005
8,062,221 Sensor for tissue gas detection and technique for using the same 0 2005
7,881,762 Clip-style medical sensor and technique for using the same 1 2005
8,095,192 Signal quality metrics design for qualifying data for a physiological monitor 0 2005
8,073,518 Clip-style medical sensor and technique for using the same 1 2006
8,380,271 System and method for generating customizable audible beep tones and alarms 0 2006
8,433,383 Stacked adhesive optical sensor 0 2006
8,195,262 Switch-mode oximeter LED drive with a single inductor 0 2006
7,738,937 Medical sensor and technique for using the same 1 2006
7,693,559 Medical sensor having a deformable region and technique for using the same 2 2006
7,684,843 Medical sensor and technique for using the same 2 2006
7,657,296 Unitary medical sensor assembly and technique for using the same 4 2006
7,647,084 Medical sensor and technique for using the same 1 2006
7,574,244 Compliant diaphragm medical sensor and technique for using the same 3 2006
8,060,171 Medical sensor for reducing motion artifacts and technique for using the same 1 2006
7,650,177 Medical sensor for reducing motion artifacts and technique for using the same 2 2006
8,145,288 Medical sensor for reducing signal artifacts and technique for using the same 0 2006
7,729,736 Medical sensor and technique for using the same 1 2006
7,676,253 Medical sensor and technique for using the same 1 2006
8,175,670 Pulse oximetry signal correction using near infrared absorption by water 0 2006
8,219,170 System and method for practicing spectrophotometry using light emitting nanostructure devices 1 2006
8,064,975 System and method for probability based determination of estimated oxygen saturation 1 2006
8,396,527 Medical sensor for reducing signal artifacts and technique for using the same 0 2006
8,195,264 Medical sensor for reducing signal artifacts and technique for using the same 0 2006
8,190,224 Medical sensor for reducing signal artifacts and technique for using the same 1 2006
8,190,225 Medical sensor for reducing signal artifacts and technique for using the same 0 2006
8,175,671 Medical sensor for reducing signal artifacts and technique for using the same 0 2006
7,869,849 Opaque, electrically nonconductive region on a medical sensor 2 2006
7,922,665 System and method for pulse rate calculation using a scheme for alternate weighting 0 2006
7,890,153 System and method for mitigating interference in pulse oximetry 0 2006
7,796,403 Means for mechanical registration and mechanical-electrical coupling of a faraday shield to a photodetector and an electrical circuit 1 2006
8,175,667 Symmetric LED array for pulse oximetry 0 2006
8,160,668 Pathological condition detector using kernel methods and oximeters 2 2006
8,068,890 Pulse oximetry sensor switchover 0 2006
8,068,891 Symmetric LED array for pulse oximetry 0 2006
7,925,511 System and method for secure voice identification in a medical device 0 2006
7,848,891 Modulation ratio determination with accommodation of uncertainty 0 2006
7,706,896 User interface and identification in a medical device system and method 3 2006
7,698,002 Systems and methods for user interface and identification in a medical device 3 2006
7,684,842 System and method for preventing sensor misuse 1 2006
7,680,522 Method and apparatus for detecting misapplied sensors 0 2006
8,401,606 Nuisance alarm reductions in a physiological monitor 0 2006
7,499,740 Techniques for detecting heart pulses and reducing power consumption in sensors 5 2007
8,280,469 Method for detection of aberrant tissue spectra 0 2007
8,265,724 Cancellation of light shunting 0 2007
7,894,869 Multiple configuration medical sensor and technique for using the same 1 2007
7,794,266 Device and method for reducing crosstalk 0 2007
8,195,263 Pulse oximetry motion artifact rejection using near infrared absorption by water 0 2007
8,204,567 Signal demodulation 0 2007
8,352,004 Medical sensor and technique for using the same 0 2007
8,346,328 Medical sensor and technique for using the same 0 2007
8,401,607 Nuisance alarm reductions in a physiological monitor 0 2008
8,423,109 Method for enhancing pulse oximery calculations in the presence of correlated artifacts 0 2008
8,071,935 Optical detector with an overmolded faraday shield 1 2008
7,887,345 Single use connector for pulse oximetry sensors 0 2008
7,880,884 System and method for coating and shielding electronic sensor components 0 2008
D626561 Circular satseconds indicator and triangular saturation pattern detection indicator for a patient monitor display panel 11 2008
D626562 Triangular saturation pattern detection indicator for a patient monitor display panel 11 2008
8,315,684 Oximeter ambient light cancellation 0 2008
8,364,220 Medical sensor and technique for using the same 0 2008
8,423,112 Medical sensor and technique for using the same 0 2008
8,417,309 Medical sensor 0 2008
8,386,000 System and method for photon density wave pulse oximetry and pulse hemometry 0 2008
8,364,221 Patient monitoring alarm escalation system and method 0 2008
7,890,154 Selection of ensemble averaging weights for a pulse oximeter based on signal quality metrics 0 2008
8,092,993 Hydrogel thin film for use as a biosensor 0 2008
8,366,613 LED drive circuit for pulse oximetry and method for using same 0 2008
8,070,508 Method and apparatus for aligning and securing a cable strain relief 1 2008
8,199,007 Flex circuit snap track for a biometric sensor 0 2008
8,352,009 Medical sensor and technique for using the same 0 2009
8,386,002 Optically aligned pulse oximetry sensor and technique for using the same 0 2009
7,658,652 Device and method for reducing crosstalk 1 2009
8,275,553 System and method for evaluating physiological parameter data 0 2009
8,221,319 Medical device for assessing intravascular blood volume and technique for using the same 0 2009
8,437,822 System and method for estimating blood analyte concentration 0 2009
8,292,809 Detecting chemical components from spectroscopic observations 0 2009
8,140,272 System and method for unmixing spectroscopic observations with nonnegative matrix factorization 0 2009
8,112,375 Wavelength selection and outlier detection in reduced rank linear models 0 2009
8,364,224 System and method for facilitating sensor and monitor communication 0 2009
8,007,441 Pulse oximeter with alternate heart-rate determination 0 2009
8,352,010 Folding medical sensor and technique for using the same 0 2009
8,238,994 Adjusting parameters used in pulse oximetry analysis 0 2009
8,311,602 Compliant diaphragm medical sensor and technique for using the same 0 2009
8,315,685 Flexible medical sensor enclosure 0 2009
8,311,601 Reflectance and/or transmissive pulse oximeter 0 2009
8,391,941 System and method for memory switching for multiple configuration medical sensor 0 2009
8,433,382 Transmission mode photon density wave system and method 0 2009
8,417,310 Digital switching in multi-site sensor 0 2009
8,428,675 Nanofiber adhesives used in medical devices 0 2009
8,376,955 Spectroscopic method and system for assessing tissue temperature 0 2009
8,224,412 Pulse oximeter sensor with piece-wise function 0 2010
8,160,726 User interface and identification in a medical device system and method 0 2010
8,260,391 Medical sensor for reducing motion artifacts and technique for using the same 0 2010
8,160,683 System and method for integrating voice with a medical device 0 2010
8,437,826 Clip-style medical sensor and technique for using the same 0 2011
 
CERCACOR LABORATORIES, INC. (38)
6,920,345 Optical sensor including disposable and reusable elements 226 2003
6,961,598 Pulse and active pulse spectraphotometry 190 2003
7,003,338 Method and apparatus for reducing coupling between signals 202 2003
7,149,561 Optical spectroscopy pathlength measurement system 96 2003
7,027,849 Blood parameter measurement system 241 2003
6,970,792 Systems and methods for determining blood oxygen saturation values using complex number encoding 143 2003
7,343,186 Multi-wavelength physiological monitor 83 2005
7,225,007 Optical sensor including disposable and reusable elements 100 2005
7,239,905 Active pulse blood constituent monitoring 91 2005
7,440,787 Systems and methods for determining blood oxygen saturation values using complex number encoding 52 2005
7,865,222 Method and apparatus for reducing coupling between signals in a measurement system 16 2006
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
7,957,780 Physiological parameter confidence measure 15 2006
7,764,982 Multiple wavelength sensor emitters 22 2006
7,761,127 Multiple wavelength sensor substrate 31 2006
7,729,733 Configurable physiological measurement system 38 2006
7,647,083 Multiple wavelength sensor equalization 40 2006
7,596,398 Multiple wavelength sensor attachment 43 2006
8,233,955 Optical sensor including disposable and reusable elements 0 2006
7,801,581 Optical spectroscopy pathlength measurement system 16 2006
7,941,199 Sepsis monitor 8 2007
8,244,325 Noninvasive oximetry optical sensor including disposable and reusable elements 0 2007
8,265,723 Oximeter probe off indicator defining probe off space 0 2007
7,791,155 Detector shield 19 2007
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
RE42753 Active pulse blood constituent monitoring 8 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
 
NELLCOR PURITAN BENNETT INCORPORATED (12)
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6,083,172 Method and apparatus for estimating physiological parameters using model-based adaptive filtering 161 1998
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7,590,439 Bi-stable medical sensor and technique for using the same 2 2005
7,555,327 Folding medical sensor and technique for using the same 3 2005
7,486,979 Optically aligned pulse oximetry sensor and technique for using the same 2 2005
7,483,731 Medical sensor and technique for using the same 5 2005
7,522,948 Medical sensor and technique for using the same 3 2006
7,477,924 Medical sensor and technique for using the same 2 2006
7,574,245 Flexible medical sensor enclosure 1 2006
 
NELLCOR PURITAN BENNETT LLC (8)
5,645,060 Method and apparatus for removing artifact and noise from pulse oximetry 174 1995
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8,216,136 Systems and methods for monitoring heart rate and blood pressure correlation 0 2009
 
DATEX-OHMEDA, INC. (6)
6,896,661 Monitoring physiological parameters based on variations in a photoplethysmographic baseline signal 10 2002
6,805,673 Monitoring mayer wave effects based on a photoplethysmographic signal 91 2002
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6,702,752 Monitoring respiration based on plethysmographic heart rate signal 104 2002
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CORVENTIS, INC. (5)
8,374,688 System and methods for wireless body fluid monitoring 0 2008
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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
 
SOTERA WIRELESS, INC. (5)
8,200,321 Method for measuring patient posture and vital signs 0 2009
8,180,440 Alarm system that processes both motion and vital signs using specific heuristic rules and thresholds 1 2009
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8,364,250 Body-worn vital sign monitor 0 2009
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RIC INVESTMENTS, LLC. (4)
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WHITLAND RESEARCH LIMITED (3)
6,842,635 Optical device 88 2001
7,400,918 Measurement of blood oxygen saturation 8 2004
7,774,037 Non-invasive measurement of blood analytes 0 2008
 
GENERAL ELECTRIC COMPANY (2)
7,403,806 System for prefiltering a plethysmographic signal 1 2005
8,116,839 System for detecting potential probe malfunction conditions in a pulse oximeter 0 2006
 
MASIMO CORPORATION, INC. (2)
8,255,028 Physiological monitor 1 2006
8,255,026 Patient monitor capable of monitoring the quality of attached probes and accessories 1 2007
 
MASIMO LABORATORIES, INC. (2)
6,850,787 Signal component processor 236 2002
8,028,701 Respiratory monitoring 6 2007
 
NELLCOR PURITAN BENNETT IRELAND (2)
8,235,911 Methods and systems for filtering a signal according to a signal model and continuous wavelet transform techniques 0 2008
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NELLCOR, INCORPORATED (2)
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SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD. (2)
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SONOMEDICA, INC. (2)
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SPACELABS HEALTHCARE, LLC (2)
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BPSURE, L.L.C. (1)
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7,628,760 Circulation monitoring system and method 0 2007
 
SONY ERICSSON MOBILE COMMUNICATIONS AB (1)
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OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (1)
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