Patents by Inventor Lars Schmitt

Lars Schmitt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11957454
    Abstract: The present invention relates to a device, system and method for detection of pulse and/or pulse-related information of a patient.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: April 16, 2024
    Assignee: Koninklijke Philips N.V.
    Inventors: Kiran Hamilton J. Dellimore, Jens Muehlsteff, Ralph Wilhelm Christianus Gemma Rosa Wijshoff, Lars Schmitt
  • Patent number: 11678809
    Abstract: According to an aspect there is provided a method of determining a calibration parameter for a first blood pressure, BP, measurement device, the method comprising obtaining a first physiological characteristic measurement of a subject using the first BP measurement device, wherein the first BP measurement device is for obtaining physiological characteristic measurements of a physiological characteristic of the subject and for determining a BP measurement of the subject from the physiological characteristic measurements using the calibration parameter, wherein the first physiological characteristic measurement is obtained when a torso of the subject is in a first posture; obtaining a second physiological characteristic measurement of the subject using the first BP measurement device, wherein the second physiological characteristic measurement is obtained when the torso of the subject is in a second, different, posture; determining the change in the posture of the torso from the first posture to the second post
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: June 20, 2023
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Laurentia Johanna Huijbregts, Jens Muehlsteff, Lars Schmitt
  • Patent number: 11583191
    Abstract: The present invention relates to an apparatus and method for determining blood pressure of a subject. To automatically trigger calibration the apparatus comprises a sensor signal input configured to obtain an arterial pulse wave sensor signal of the subject, a feature extraction unit configured to extract multiple features from the obtained arterial pulse wave sensor signal, an estimation unit configured to determine multiple blood pressure estimation values for individual extracted features and/or groups of extracted features and to determine the subject's blood pressure from said multiple blood pressure estimation values, a calibration unit configured to calibrate the estimation unit based on blood pressure reference measurements, and a calibration trigger unit configured to trigger calibration by the calibration unit if the multiple blood pressure estimation values diverge more than a divergence limit.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: February 21, 2023
    Assignee: Koninklijke Philips N.V.
    Inventors: Lars Schmitt, Jens Muehlsteff, Erik Bresch, Xinchi Yu
  • Patent number: 11432796
    Abstract: A method for monitoring fetal health. The method of the present disclosure comprises transmitting (100) an ultrasound signal from an at least one transducer element in an array towards a maternal abdomen. An at least one ultrasonic echo signal corresponding to an at least one depth of the maternal abdomen is then received (102) by the at least one transducer element. The at least one Doppler signal is determined after the echo is received by the at least one transducer element is then processed (104) in an at least one channel. A multidimensional map is then generated (106) from the processed Doppler signal. A feedback (114) to reposition the at least one transducer element is then provided when the fetal heart is determined to lie outside an ultrasound beam volume.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: September 6, 2022
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Paul Hamelmann, Lars Schmitt, Alexander Franciscus Kolen, Markus Wohlschlager
  • Publication number: 20220167948
    Abstract: The present invention relates to a pregnancy monitoring system, the system comprising a fetal monitoring transducer (20) arranged to detect fetal medical condition information; and a control device (48) comprising a motion assessment unit (50) and a signal output unit (52); wherein the fetal monitoring transducer (20) is arranged to detect fetal movement indicative information, wherein the motion assessment unit (50) is arranged to process fetal movement grading information, in addition to the fetal movement indicative information, wherein the signal output unit (52) is arranged to simultaneously output a fetal condition signal, particularly a fetal heart rate signal, and an augmented fetal movement signal based on the fetal movement indicative information and the fetal movement grading information, wherein a characteristic property of the original fetal movement information is still present in the augmented fetal movement signal. The disclosure further relates to a corresponding pregnancy monitoring method.
    Type: Application
    Filed: February 18, 2022
    Publication date: June 2, 2022
    Inventors: Lars Schmitt, Jakob Van De Laar, Markus Wohlschlager, Winfried Peter Kaiser
  • Patent number: 11298033
    Abstract: According to an aspect, there is provided a method of operating a non-invasive blood pressure, NIBP, monitor to measure the blood pressure of a subject, the NIBP monitor comprising a cuff, a pressure sensor for measuring the pressure in the cuff and for outputting a pressure signal representing the pressure in the cuff and a physiological parameter sensor, the method comprising obtaining a first measurement of a physiological parameter for the subject during inflation of the cuff, the first measurement being obtained from the pressure signal; obtaining a second measurement of the physiological parameter for the subject during inflation of the cuff, the second measurement being obtained from the physiological parameter sensor; comparing the first measurement and the second measurement; and estimating the reliability of a blood pressure measurement obtained by the NIBP monitor during inflation of the cuff based on the result of the step of comparing.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: April 12, 2022
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Jens Muehlsteff, Teun Van Den Heuvel, Erik Bresch, Lars Schmitt, Dieter Woehrle
  • Patent number: 11253231
    Abstract: The present invention relates to a pregnancy monitoring system, the system comprising a fetal monitoring transducer (20) arranged to detect fetal medical condition information; and a control device (48) comprising a motion assessment unit (50) and a signal output unit (52); wherein the fetal monitoring transducer (20) is arranged to detect fetal movement indicative information, wherein the motion assessment unit (50) is arranged to process fetal movement grading information, in addition to the fetal movement indicative information, wherein the signal output unit (52) is arranged to simultaneously output a fetal condition signal, particularly a fetal heart rate signal, and an augmented fetal movement signal based on the fetal movement indicative information and the fetal movement grading information, wherein a characteristic property of the original fetal movement information is still present in the augmented fetal movement signal. The disclosure further relates to a corresponding pregnancy monitoring method.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: February 22, 2022
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Lars Schmitt, Jakob Van De Laar, Markus Wohlschlager, Winfried Peter Kaiser
  • Patent number: 11246563
    Abstract: The present invention relates to a pregnancy monitoring system (10) and to a method for detecting medical condition information from a pregnant subject of interest (12).
    Type: Grant
    Filed: October 13, 2014
    Date of Patent: February 15, 2022
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Jakob Van De Laar, Haris Duric, Lars Schmitt, Markus Wohlschlager, Winfried Peter Kaiser
  • Publication number: 20210369207
    Abstract: There is provided an apparatus (12) for use with a wearable cuff (14). The wearable cuff (14) is for use in measuring blood pressure. The apparatus (12) is configured to acquire a plurality of pressure signals. Each of the plurality of pressure signals are indicative of a pressure in the wearable cuff (14) during a period for measuring blood pressure. The apparatus (12) is configured to, for each of the plurality of acquired pressure signals, determine a measure of a quality of the acquired pressure signal based on one or more parameters derived from artifacts identified in the acquired pressure signal. The apparatus (12) is also configured to determine a measure of a quality of the wearable cuff (14) based on the determined measures of the quality of the acquired pressure signals.
    Type: Application
    Filed: October 18, 2019
    Publication date: December 2, 2021
    Inventors: Bishal LAMICHHANE, Maarten Petrus Joseph KUENEN, Jens MUEHLSTEFF, Charles Christy MONROE, Lars SCHMITT
  • Publication number: 20210204822
    Abstract: According to an aspect, there is provided a computer-implemented method of estimating a trend in a blood pressure surrogate, the method comprising obtaining a set of blood pressure surrogate measurement values of a blood pressure surrogate for a subject; obtaining, for each blood pressure surrogate measurement value, an error value indicating a measurement error for the blood pressure surrogate measurement value; and analysing the set of blood pressure surrogate measurement values and the respective error values using Bayesian inference to determine a trend (4) in the blood pressure surrogate over time.
    Type: Application
    Filed: June 3, 2019
    Publication date: July 8, 2021
    Inventors: Jens MUEHLSTEFF, Erik BRESCH, Jan VAN DALEN, Ignasi JUNYENT MORA, Lars SCHMITT
  • Patent number: 10912467
    Abstract: The present invention relates to an apparatus (18) for providing a control signal for a blood pressure measurement device, comprising: an input interface (24) for obtaining a health state parameter being indicative of a health state of a patient (12); a processing unit (28) for determining one or more operation settings of a blood pressure measurement device (14) based on the health state parameter, said one or more operation settings including a parameter that can be adjusted at the blood pressure measurement device (14) when conducting a blood pressure measurement with the device and that affects a precision of said blood pressure measurement and a patient comfort resulting from said blood pressure measurement; and a control interface (30) for providing a control signal for a blood pressure measurement device (14) to perform a blood pressure measurement based on said one or more operation settings. The present invention further relates to a corresponding method.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: February 9, 2021
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Jens Muehlsteff, Erik Bresch, Teun van den Heuvel, Lars Schmitt, Dieter Woehrle
  • Publication number: 20210022627
    Abstract: According to an aspect there is provided an inflation apparatus (10) for use with an inflation-based non-invasive blood pressure, NIBP, measurement apparatus, the inflation apparatus comprising: an outlet (110) configured to be coupled to a cuff of the inflation-based NIBP measurement apparatus; a pump (120) configured to output a flow of gas at an output flow rate; a valve (130) disposed along a flow path between the pump and the outlet to selectively pass part of the flow of gas output by the pump; and a control unit (140) configured to control the flow resistance of the valve to provide a flow of gas to the outlet at a required flow rate for inflating the cuff.
    Type: Application
    Filed: September 7, 2018
    Publication date: January 28, 2021
    Inventors: Dieter WOEHRLE, Lars SCHMITT, Maarten Petrus Joseph KUENEN, Paul AELEN
  • Publication number: 20200275847
    Abstract: According to an aspect there is provided an inflation apparatus (10) for use in an inflation-based non-invasive blood pressure, NIBP, measurement apparatus, the inflation apparatus comprising: an outlet (110) configured to be coupled to a cuff of the inflation-based NIBP measurement apparatus; a plurality of pumps (120) each configured to output a flow of gas to the outlet; and a control unit (130) configured to enable at least one of the plurality of pumps to output a flow of gas to the outlet based on a required flow rate to inflate the cuff and/or to control a flow rate of at least one of the plurality of pumps to output a flow of gas to the outlet based on a required flow rate to inflate the cuff.
    Type: Application
    Filed: September 11, 2018
    Publication date: September 3, 2020
    Inventors: Dieter WOEHRLE, Lars SCHMITT, Maarten Petrus Joseph KUENEN, Paul AELEN
  • Publication number: 20200229716
    Abstract: The present invention relates to an apparatus and method for determining blood pressure of a subject. To automatically trigger calibration the apparatus comprises a sensor signal input (31) configured to obtain an arterial pulse wave sensor signal (11) of the subject, a feature extraction unit (32) configured to extract multiple features (42) from the obtained arterial pulse wave sensor signal, an estimation unit (33) configured to determine multiple blood pressure estimation values (43) for individual extracted features and/or groups of extracted features and to determine the subject's blood pressure (44) from said multiple blood pressure estimation values, a calibration unit (34) configured to calibrate the estimation unit (33) based on blood pressure reference measurements (21), and a calibration trigger unit (35) configured to trigger calibration by the calibration unit (34) if the multiple blood pressure estimation values diverge more than a divergence limit.
    Type: Application
    Filed: July 23, 2019
    Publication date: July 23, 2020
    Inventors: LARS SCHMITT, JENS MUEHLSTEFF, ERIK BRESCH, XINCHI YU
  • Publication number: 20200100705
    Abstract: The present invention relates to a device, system and method for detection of pulse and/or pulse-related information of a patient.
    Type: Application
    Filed: June 22, 2018
    Publication date: April 2, 2020
    Inventors: KIRAN HAMILTON J. DELLIMORE, JENS MUEHLSTEFF, RALPH WILHELM CHRISTIANUS GEMMA ROSA WIJSHOFF, LARS SCHMITT
  • Patent number: 10595733
    Abstract: Method of operating a non-invasive blood pressure, NIBP, monitor to measure the blood pressure of a subject, the NIBP monitor comprising a cuff, a pressure sensor for measuring the pressure in the cuff and for outputting a pressure signal representing the pressure in the cuff and a physiological parameter sensor, the method comprising obtaining a first measurement of pulse rate or heart rate for the subject during inflation of the cuff, the first measurement being obtained from the pressure signal; obtaining a second measurement of the pulse rate or heart rate for the subject during inflation of the cuff, the second measurement being obtained from the physiological parameter sensor; comparing the first measurement and the second measurement; and estimating the reliability of a blood pressure measurement obtained by the NIBP monitor during inflation of the cuff based on the result of the step of comparing.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: March 24, 2020
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Jens Mühlsteff, Teun Van Den Heuvel, Erik Bresch, Lars Schmitt, Dieter Woehrle
  • Publication number: 20190343407
    Abstract: According to an aspect there is provided a method of determining a calibration parameter for a first blood pressure, BP, measurement device, the method comprising obtaining a first physiological characteristic measurement of a subject using the first BP measurement device, wherein the first BP measurement device is for obtaining physiological characteristic measurements of a physiological characteristic of the subject and for determining a BP measurement of the subject from the physiological characteristic measurements using the calibration parameter, wherein the first physiological characteristic measurement is obtained when a torso of the subject is in a first posture; obtaining a second physiological characteristic measurement of the subject using the first BP measurement device, wherein the second physiological characteristic measurement is obtained when the torso of the subject is in a second, different, posture; determining the change in the posture of the torso from the first posture to the second post
    Type: Application
    Filed: December 5, 2017
    Publication date: November 14, 2019
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: Laurentia Johanna HUIJBREGTS, Jens MUEHLSTEFF, Lars SCHMITT
  • Publication number: 20190328240
    Abstract: According to an aspect, there is provided a method of operating a non-invasive blood pressure, NIBP, monitor to measure the blood pressure of a subject, the NIBP monitor comprising a cuff, a pressure sensor for measuring the pressure in the cuff and for outputting a pressure signal representing the pressure in the cuff and a physiological parameter sensor, the method comprising obtaining a first measurement of a physiological parameter for the subject during inflation of the cuff, the first measurement being obtained from the pressure signal; obtaining a second measurement of the physiological parameter for the subject during inflation of the cuff, the second measurement being obtained from the physiological parameter sensor; comparing the first measurement and the second measurement; and estimating the reliability of a blood pressure measurement obtained by the NIBP monitor during inflation of the cuff based on the result of the step of comparing.
    Type: Application
    Filed: May 7, 2019
    Publication date: October 31, 2019
    Inventors: Jens MUEHLSTEFF, Teun VAN DEN HEUVEL, Erik BRESCH, Lars SCHMITT, Dieter WOEHRLE
  • Publication number: 20190274558
    Abstract: An apparatus and method for determining a calibration parameter for a blood pressure measurement device. According to an aspect, there is provided an apparatus for determining a calibration parameter for a first blood pressure, BP, measurement device, the apparatus comprising a control unit that is to be coupled to a first BP measurement device that is for obtaining physiological characteristic measurements of a physiological characteristic of a subject and for determining a blood pressure measurement of the subject from the physiological characteristic measurements, a second BP measurement device that is for obtaining measurements of the blood pressure of the subject and a ventilator that is for providing a controlled flow of gas to the subject.
    Type: Application
    Filed: October 10, 2017
    Publication date: September 12, 2019
    Inventors: Laurentia Johanna HUIJBREGTS, Joachim KAHLERT, Lars SCHMITT, Rainer HILBIG
  • Publication number: 20190133549
    Abstract: A method for monitoring fetal health. The method of the present disclosure comprises transmitting (100) an ultrasound signal from an at least one transducer element in an array towards a maternal abdomen. An at least one ultrasonic echo signal corresponding to an at least one depth of the maternal abdomen is then received (102) by the at least one transducer element. The at least one Doppler signal is determined after the echo is received by the at least one transducer element is then processed (104) in an at least one channel. A multidimensional map is then generated (106) from the processed Doppler signal. A feedback (114) to reposition the at least one transducer element is then provided when the fetal heart is determined to lie outside an ultrasound beam volume.
    Type: Application
    Filed: May 5, 2017
    Publication date: May 9, 2019
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: Paul HAMELMANN, Lars SCHMITT, Alexander Franciscus KOLEN, MARKUS WOHLSCHLAGER