公开(公告)号：US20240173001A1

公开(公告)日：2024-05-30

申请号：US18500705

申请日：2023-11-02

Applicant: Masimo Corporation

Inventor： Massi Joe E. Kiani ,  Mohamed K. Diab ,  Marcelo M. Lamego

IPC: A61B5/00 ,  A61B5/1455 ,  A61B5/1495 ,  G08B1/08 ,  G08B13/196 ,  G08B25/00 ,  G08B29/10

CPC classification number: A61B5/746 ,  A61B5/1455 ,  A61B5/14552 ,  A61B5/1495 ,  A61B5/7405 ,  G08B1/08 ,  G08B13/1966 ,  G08B25/009 ,  G08B29/10 ,  A61B2562/0238

Abstract: A robust alarm system has an alarm controller adapted to input an alarm trigger and to generate at least one alarm drive signal in response. Alarm subsystems input the alarm drive signal and activate one or more of multiple alarms accordingly. A subsystem function signal provides feedback to the alarm controller as to alarm subsystem integrity. A malfunction indicator is output from the alarm controller in response to a failure within the alarm subsystems.

公开(公告)号：US20210059576A1

公开(公告)日：2021-03-04

申请号：US16993101

申请日：2020-08-13

Applicant: Masimo Corporation

Inventor： Walter M. Weber ,  Ammar Al-Ali ,  Mohamed K. Diab ,  Marcelo M. Lamego

IPC: A61B5/1455 ,  A61B5/00 ,  A61B5/1495

Abstract: A method and an apparatus for separating a composite signal into a plurality of signals is described. A signal processor receives a composite signal and separates a composite signal into separate output signals. Feedback from one or more of the output signals is provided to a configuration module that configures the signal processor to improve a quality of the output signals. In one embodiment, calibration data from multiple calibration data sets is used to configure the demodulation of the composite signal into separate output signals.

公开(公告)号：US10335072B2

公开(公告)日：2019-07-02

申请号：US15351181

申请日：2016-11-14

Applicant: Masimo Corporation

Inventor： Ammar Al-Ali ,  Mohamed K. Diab ,  Massi E. Kiani ,  Robert James Kopotic ,  David Tobler

IPC: A61B5/1455 ,  A61B5/00 ,  A61B5/0205 ,  A61B5/1459 ,  A61B5/024 ,  A61M16/00

Abstract: A patient monitor has multiple sensors adapted to attach to tissue sites of a living subject. The sensors generate sensor signals that are responsive to at least two wavelengths of optical radiation after attenuation by pulsatile blood within the tissue sites.

公开(公告)号：US09730640B2

公开(公告)日：2017-08-15

申请号：US14023153

申请日：2013-09-10

Applicant: Masimo Corporation

Inventor： Mohamed K. Diab ,  Ammar Al-Ali

IPC: A61B5/1455 ,  A61B5/00

CPC classification number: A61B5/7221 ,  A61B5/14551 ,  A61B5/6843 ,  A61B2560/0276

Abstract: A processor provides signal quality based limits to a signal strength operating region of a pulse oximeter. These limits are superimposed on the typical gain dependent signal strength limits. If a sensor signal appears physiologically generated, the pulse oximeter is allowed to operate with minimal signal strength, maximizing low perfusion performance. If a sensor signal is potentially due to a signal induced by a dislodged sensor, signal strength requirements are raised. Thus, signal quality limitations enhance probe off detection without significantly impacting low perfusion performance. One signal quality measure used is pulse rate density, which defines the percentage of time physiologically acceptable pulses are occurring. If the detected signal contains a significant percentage of unacceptable pulses, the minimum required signal strength is raised proportionately. Another signal quality measure used in conjunction with pulse rate density is energy ratio, computed as the percentage of total energy contained in the pulse rate fundamental and associated harmonics.

公开(公告)号：US09289167B2

公开(公告)日：2016-03-22

申请号：US13706298

申请日：2012-12-05

Applicant: Masimo Corporation

Inventor： Mohamed K. Diab ,  Rex J. McCarthy

IPC: A61B5/1455 ,  A61B5/024 ,  A61B5/00 ,  G06K9/00 ,  A61B5/0205

CPC classification number: A61B5/7257 ,  A61B5/0205 ,  A61B5/02416 ,  A61B5/02433 ,  A61B5/1455 ,  A61B5/14551 ,  A61B5/14552 ,  A61B5/6826 ,  A61B5/7203 ,  A61B5/7214 ,  A61B5/7225 ,  A61B5/726 ,  A61B5/7278 ,  A61B5/742 ,  G06K9/0051

Abstract: A method and an apparatus to analyze two measured signals that are modeled as containing desired and undesired portions such as noise, FM and AM modulation. Coefficients relate the two signals according to a model defined in accordance with the present invention. In one embodiment, a transformation is used to evaluate a ratio of the two measured signals in order to find appropriate coefficients. The measured signals are then fed into a signal scrubber which uses the coefficients to remove the unwanted portions. The signal scrubbing is performed in either the time domain or in the frequency domain. The method and apparatus are particularly advantageous to blood oximetry and pulserate measurements. In another embodiment, an estimate of the pulserate is obtained by applying a set of rules to a spectral transform of the scrubbed signal. In another embodiment, an estimate of the pulserate is obtained by transforming the scrubbed signal from a first spectral domain into a second spectral domain. The pulserate is found by identifying the largest spectral peak in the second spectral domain.

公开(公告)号：US12171552B2

公开(公告)日：2024-12-24

申请号：US18309187

申请日：2023-04-28

Applicant: Masimo Corporation

Inventor： Walter M. Weber ,  Ammar Al-Ali ,  Mohamed K. Diab ,  Marcelo M. Lamego

IPC: A61B5/1455 ,  A61B5/00 ,  A61B5/1495

Abstract: A method and an apparatus for separating a composite signal into a plurality of signals is described. A signal processor receives a composite signal and separates a composite signal into separate output signals. Feedback from one or more of the output signals is provided to a configuration module that configures the signal processor to improve a quality of the output signals. In one embodiment, calibration data from multiple calibration data sets is used to configure the demodulation of the composite signal into separate output signals.

公开(公告)号：US11672447B2

公开(公告)日：2023-06-13

申请号：US16993101

申请日：2020-08-13

Applicant: Masimo Corporation

Inventor： Walter M. Weber ,  Ammar Al-Ali ,  Mohamed K. Diab ,  Marcelo M. Lamego

IPC: A61B5/1455 ,  A61B5/00 ,  A61B5/1495

CPC classification number: A61B5/1455 ,  A61B5/1495 ,  A61B5/7228 ,  A61B2562/0238

Abstract: A method and an apparatus for separating a composite signal into a plurality of signals is described. A signal processor receives a composite signal and separates a composite signal into separate output signals. Feedback from one or more of the output signals is provided to a configuration module that configures the signal processor to improve a quality of the output signals. In one embodiment, calibration data from multiple calibration data sets is used to configure the demodulation of the composite signal into separate output signals.

公开(公告)号：US11071480B2

公开(公告)日：2021-07-27

申请号：US16881930

申请日：2020-05-22

Applicant: Masimo Corporation

Inventor： Mohamed K. Diab ,  Prashanth Iyengar ,  Anand Sampath ,  Ammar Al-Ali

IPC: A61B5/1455 ,  A61B5/00 ,  A61B5/0205

Abstract: Embodiments of the present disclosure provide a hypersaturation index for measuring a patient's absorption of oxygen in the blood stream after a patient has reached 100% oxygen saturation. This hypersaturation index provides an indication of the partial pressure of oxygen of a patient. In an embodiment of the present invention, a hypersaturation index is calculated based on the absorption ratio of two different wavelengths of energy at a measuring site. In an embodiment of the invention, a maximum hypersaturation index threshold is determined such that an alarm is triggered when the hypersaturation index reaches or exceeds the threshold. In another embodiment, an alarm is triggered when the hypersaturation index reaches or falls below its starting point when it was first calculated.

公开(公告)号：US10231676B2

公开(公告)日：2019-03-19

申请号：US14022106

申请日：2013-09-09

Applicant: MASIMO CORPORATION

Inventor： Ammar Al-Ali ,  Don Carothers ,  David Dalke ,  Mohamed K. Diab ,  Julian Goldman ,  Massi E. Kiani ,  Michael Lee ,  Jerome Novak ,  Robert Smith ,  Val E. Vaden

IPC: A61B5/00 ,  A61B5/1455 ,  A61B5/0205 ,  A61B5/021 ,  A61B5/0402 ,  A61B5/0476

Abstract: A portable patient monitor has an integrated mode in which it operates as a plug-in module for a multiparameter patient monitoring system (MPMS). The patient monitor also has a portable mode in which it operates separately from the MPMS as a battery-powered handheld or standalone instrument. The patient monitor has a sensor port that receives a signal indicative of physiological parameters as input to an internal processor. The patient monitor processes this sensor signal to derive patient measurements. In the portable mode, this information is provided on its display. In the integrated mode, the patient monitor provides patient measurements to the MPMS to be displayed on a MPMS monitor.

公开(公告)号：US20180153448A1

公开(公告)日：2018-06-07

申请号：US15834965

申请日：2017-12-07

Applicant: MASIMO CORPORATION

Inventor： Walter M. Weber ,  Ammar Al-Ali ,  Mohamed K. Diab ,  Marcelo M. Lamego

IPC: A61B5/1455 ,  A61B5/1495 ,  A61B5/00

CPC classification number: A61B5/1455 ,  A61B5/1495 ,  A61B5/7228 ,  A61B2562/0238

Abstract: A method and an apparatus for separating a composite signal into a plurality of signals is described. A signal processor receives a composite signal and separates a composite signal into separate output signals. Feedback from one or more of the output signals is provided to a configuration module that configures the signal processor to improve a quality of the output signals. In one embodiment, calibration data from multiple calibration data sets is used to configure the demodulation of the composite signal into separate output signals.