Measuring Pressure In Heart Or Blood Vessel Patents (Class 600/485)
  • Patent number: 11517740
    Abstract: The present invention is generally related to methods and systems for preventing onset or worsening of RHF in patients with implanted ventricular assist devices. More particularly, the present invention relates to identifying patients at risk for RHF following implantation of a ventricular assist device based on pulmonary artery pressure measurement and/or trends and adjusting a pump operating parameter to prevent or reduce the onset or worsening of RHF in such patients, improve patient outcomes, or reduce mortality risks associated with VAD implantation. In particular, a pump operating parameter may be adjusted to reduce or minimize particularly high pressure loads on a patient's heart or amount of time the patient is exposed to such high pressure loads following implantation.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: December 6, 2022
    Assignee: TC1 LLC
    Inventors: Rahul Agarwal, Allison Connolly, Yelena Nabutovsky, Julie Prillinger
  • Patent number: 11504508
    Abstract: Disclosed is an angioplasty balloon catheter and method of use, said angioplasty balloon catheter includes an elongated tip end with physical characteristics nearly identical to a standard angiographic diagnostic catheter. The elongated tip end extends approximately between 2 cm to 75 cm beyond a distal end of a balloon, depending upon embodiments. The tip of the elongated tip end may be angled or straight depending upon embodiments and may or may not have a plurality of side holes in addition to an end hole depending on embodiments. The elongated tip end permits the angioplasty balloon catheter to tract more easily across tortuous or markedly angulated segments of a dialysis graft or fistula, minimizing complications that can result with currently available devices. If angulated, the elongated tip end also enables a user to selectively catheterize an artery without needing a separate diagnostic catheter to do so, and enable tracking and cornering across sharply angulated vessel segments.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: November 22, 2022
    Inventors: Jonathan Levine, Timothy Murphy
  • Patent number: 11497454
    Abstract: An apparatus for estimating bio-information is disclosed. The bio-information estimating apparatus includes: a sensor configured to measure a bio-signal; and a processor configured to obtain one or more characteristic points, related to one or more pulse waveform components constituting the bio-signal, based on a differential signal of the bio-signal, and to estimate bio-information based on the obtained one or more characteristic points.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: November 15, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Soon Park, Ui Kun Kwon, Seung Keun Yoon, Dae Geun Jang
  • Patent number: 11491300
    Abstract: A robot-connected IoT-based sleep-caring system includes a sleep-caring robot and an IoT system. The sleep-caring robot includes environment monitoring, physiology monitoring, sleep monitoring, sound, lighting and electricity control, a smart storage compartment, central data processing, and machine arms. The IoT system senses and executes instructions from the sleep-caring robot, thereby catering to bedroom activities of the user.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: November 8, 2022
    Inventor: Zhongtang Wang
  • Patent number: 11484210
    Abstract: Disclosed herein are methods and systems for a medical device that can monitor at least one chronic condition for example diabetes, with improved features that enable the device to detect the case while it is still pre diabetes, this early detection may significantly postpones the disease and minimizes complications with the change of life style, additionally it can advise those considered diabetics about their treatment protocol if it is sufficient or needs adjustment as the disease progresses.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: November 1, 2022
    Inventor: Waleed Bahaa El Deen Abdul Raheem Ahmed
  • Patent number: 11471063
    Abstract: A computerized information processing method for evaluating blood vessels is provided. The method includes acquiring a series of sequences of measurements, each at different time points in at least one cardiac cycle and at a different point along a blood vessel segment of a subject, generating corresponding profiles, calculating a transfer function for a subsegment between two selected points along a blood flow direction, and based thereon determining the physiological property of the subsegment. The measurements can contain information of blood velocity or blood pressure. A processing device and system implementing the information processing method are also provided. This approach can be used to evaluate arteries or veins and can be applied in screening, diagnosis, or prognosis of a variety of vascular diseases. For example, when combined with MRI scan, this approach can be used for non-invasively diagnosing pulmonary hypertension (PH) and chronic obstructive pulmonary disease (COPD), etc.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: October 18, 2022
    Assignees: Auburn University, Areus-Med, LLC, The UAB Research Foundation
    Inventors: Thomas S. Denney, Jr., Himanshu Gupta, Ankur Gupta
  • Patent number: 11426093
    Abstract: Persons with sleep disordered breathing (SDB) may, or may not, recognize that they have symptoms of SDB, and/or that they may be at-risk of, or suffering certain health problems associated with SDB, including death. The disclosed Energy Conversion Monitor (ECM) sensor, when embodied, for example, in a wearable upper-armband format, has been demonstrated to be more sensitive and responsive than pulse oximetry monitoring of blood oxygen saturation as an indication of hypoxic stress induced by SDB, and is compatible with: (1) inclusion in sleep laboratory polysomnograph (PSG) testing instrumentation, (2) home-based diagnostic testing for SDB, (3) control of home-use airway therapy devices, (4) continuous remote surveillance and refinement of airway therapy, and (5) spot-check and continuous surveillance of sleep quality in the general population. The disclosed ECM also provides new measurements of physiologic stress during and following exercise.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: August 30, 2022
    Assignee: REVEAL BIOSENSORS, INC.
    Inventor: Guy Meredith Hatch
  • Patent number: 11426130
    Abstract: An apparatus for non-invasively estimating blood pressure is provided. According to one embodiment, the apparatus for estimating blood pressure may include a bio-signal sensor configured to measure a bio-signal from a user and a processor configured to extract a feature from the bio-signal at an extraction time, acquire an offset based on a relative change value of the feature extracted at the extraction time, relative to a reference value of the feature obtained a time of calibration, and estimate blood pressure based on the relative change value of the extracted feature and the acquired offset.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: August 30, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dae Geun Jang, Ui Kun Kwon, Chang Soon Park
  • Patent number: 11412944
    Abstract: A method for measuring sound from vortices in the carotid artery comprising: first and second quality control provisions, wherein the quality control compares detected sounds to pre-determined sounds, and upon confirmation of the quality control procedures, detecting sounds generated by the heart and sounds from vortices in the carotid artery for at least 30 seconds.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: August 16, 2022
    Assignee: CVR Medical Corporation
    Inventors: Bret Kline, Peter Bakema, Young Truong, Richard Finlayson, Orville Day
  • Patent number: 11412955
    Abstract: A blood pressure measuring apparatus performs blood pressure measurement of a person to be measured. The apparatus includes: setting a measurement mode including at least a nocturnal blood pressure measurement mode to perform the measurement; and determining whether a blood pressure measurement posture is good under a first determination condition based on a height difference between a position of the apparatus and a heart position of the person in a sitting posture, and under a second determination condition based on a height difference between a position of the apparatus and a heart position of the person in a supine posture. A determination condition of the determining is switched to the second determination condition when the nocturnal blood pressure measurement mode is set.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: August 16, 2022
    Assignees: OMRON CORPORATION, OMRON HEALTHCARE CO., LTD.
    Inventors: Yuki Ota, Tsuyoshi Kitagawa, Shingo Yamashita
  • Patent number: 11412940
    Abstract: The present invention provides a dynamic measurement device with a blood pressure determination function, comprising: a heartbeat sensing module disposed on the chest area of a user wherein the heartbeat sensing module comprising a heart sound sensor for obtaining heartbeat signals; a pulse sensing module disposed on a limb area of the user, the pulse sensing module comprising a pulse wave sensor for obtaining pulse signals; and a data calculating module for calculating a mean arterial pressure and a value of systolic blood pressure and diastolic blood pressure based on the heartbeat signals and pulse signals. In addition to dynamically monitoring the blood pressure of a user for 24 hours, the present invention can dynamically monitor the heart sounds of the user for 24 hours individually in order to monitor user's physical condition. Therefore, the present invention has important medical meanings.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: August 16, 2022
    Assignees: BIV MEDICAL, LTD.
    Inventors: Shiming Lin, Shih-Wei Chiang, Cheng-Yan Guo, Tai-Cun Lin, Wei-Chih Huang, Chun-Nan Chen, Ya-Ting Chang
  • Patent number: 11413005
    Abstract: The disclosed devices, systems and methods measure non-invasive blood pressure in a patient. Energy emissions, such as ultrasound or light, are emitted into tissues of the patient. The emitted energy reflects from various tissues, such as flowing blood and vessels, and can be detected, or received, to generate a reflected energy signal or data. The reflected energy can be processed, such as by using a constitutive equation, to calculate the blood pressure.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: August 16, 2022
    Assignee: Stryker Corporation
    Inventor: Clinton T. Siedenburg
  • Patent number: 11412987
    Abstract: The present application provides a personal hand-held monitor for the measurement of a subject's blood pressure and, optionally, one or more other vital signs, comprising a housing located on a personal hand-held computing device or a hand-held component of a computing system; a blood flow occlusion means located in the housing; a pressure sensor adapted to provide an electrical signal indicative of the pressure applied; a means for detecting the flow of blood in the body part of the subject when pressure is applied; and means for receiving electrical signals from the pressure sensor and the blood flow detecting means and for transmitting electrical signals indicative of the pressure and blood flow to the processor of the personal hand-held computing device or the computing system, wherein the processor of the personal hand-held computing device or computing system provide at least a measurement of the blood pressure of a subject.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: August 16, 2022
    Assignee: Leman Micro Devices SA
    Inventors: Christopher Elliott, Mark-Eric Jones, Mikhail Nagoga, Shady Gawad, Mark Bennett
  • Patent number: 11399725
    Abstract: A method and apparatus for monitoring a cardiovascular pressure signal in a medical device that includes determining whether the sensed pressure signal is greater than a first pressure threshold, determining a first metric of the pressure signal in response to the sensed pressure signal being greater than the first pressure threshold, determining whether the sensed pressure signal is greater than a second pressure threshold not equal to the first pressure threshold, determining a second metric of the pressure signal in response to the sensed pressure signal being greater than the first pressure threshold, and determining at least one of a systolic pressure or a diastolic pressure, wherein the at least one of a systolic pressure or a diastolic pressure is determined based on the first metric in response to the pressure signal not being greater than the second threshold, and based on the second metric in response to the pressure signal being greater than the second threshold.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: August 2, 2022
    Assignee: Medtronic, Inc.
    Inventor: Saul E. Greenhut
  • Patent number: 11399726
    Abstract: A device for collecting cardiovascular data relating to an individual user, comprising a control unit assembly with an electronic controller and a pneumatic unit, an arm band having an inflatable bladder and configured to surround the left arm of the individual, wherein the pneumatic unit has a pump and a pressure sensor, and is configured to inflate and deflate the inflatable bladder, so that the electronic controller can determine the arterial pressure of the user, the device further comprising an acoustic sensor being coupled to the external wall of the arm band and having a sensitive side such that in use configuration, the sensitive side is adjacent to the chest of the user, whereby at least a cardiovascular timing characteristic can be inferred from signals from the acoustic sensor and the pressure sensor. The device may also comprise a set of contact electrodes to provide additionally ECG functionality.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: August 2, 2022
    Assignee: WITHINGS
    Inventors: David Campo, Bastien Rechke, Xianzhi Zhang, Mélanie Patel Alsberghe, Victor Ting, Olivier Bienvenu
  • Patent number: 11395597
    Abstract: A system for evaluating blood flow in a vessel of a patient includes a catheter containing a first pressure sensor and a second pressure sensor and configured to simultaneously measure pressure data within a vessel on either side of a stenosis. Pressure data generated by the catheter includes a first series of pressure measurements from the first pressure sensor a second series of pressure measurements from the second pressure sensor. The system further includes an FFR calculation module executable on one or more processors and configured to calculate a stability index for each of two or more portions of the pressure data, wherein each stability index indicates at least one of heart rate stability and catheter stability for the respective portion of the pressure data. An optimal time window is identified based on the stability indexes for calculation of fractional flow reserve (FFR) based on the pressure data. An FFR value is then calculated based on the pressure data in the optimal time window.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: July 26, 2022
    Assignee: General Electric Company
    Inventors: Adrian F. Warner, Daniel R. Schneidewend, Daniel J. Nowicki, Joel Q. Xue
  • Patent number: 11395598
    Abstract: A pulse wave detector includes a body portion; a band which is wound around a wrist while the band is engaged with the body portion; a first engaging portion with which a basal end portion in a longitudinal direction of the band is engaged; a second engaging portion with which an arbitrary position in the longitudinal direction of the band is engaged while the band is folded back; and an engagement member which causes a tip end portion in the longitudinal direction of the band to be engaged with the basal end portion or the first end portion while the basal end portion and the tip end portion overlap with each other. A tip end of the tip end portion is directed from an opposed surface of the body portion to the wrist to an opposite surface of the body portion.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: July 26, 2022
    Assignee: OMRON HEALTHCARE CO., LTD.
    Inventors: Reiji Fujita, Shingo Yamashita
  • Patent number: 11389069
    Abstract: Tools and techniques for estimating a probability that a patient is bleeding or has sustained intravascular volume loss (e.g., due to hemodialysis or dehydration) and/or to estimate a patient's current hemodynamic reserve index, track the patient's hemodynamic reserve index over time, and/or predict a patient's hemodynamic reserve index in the future. Tools and techniques for estimating and/or predicting a patient's dehydration state. Tools and techniques for controlling a hemodialysis machine based on the patient's estimated and/or predicted hemodynamic reserve index.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: July 19, 2022
    Assignees: Flashback Technologies, Inc., The Regents of the University of Colorado
    Inventors: Gregory Zlatko Grudic, Steven L. Moulton, Isobel Jane Mulligan
  • Patent number: 11389073
    Abstract: A bag-shaped structure for a blood pressure monitor cuff that is wrapped around a living body and is inflated by supplying a fluid to an internal space to apply a pressure to the living body, includes an inner wall portion that is positioned on the living body's side, has a Shore A hardness of 15 to 75, and has a thickness of 0.10 mm to 0.40 mm, an outer wall portion that faces the inner wall portion, and a pair of side wall portions that are provided in a manner to be continuous with the inner wall portion and the outer wall portion, have a Shore A hardness equal to the Shore A hardness of the inner wall portion, and have a thickness that falls within a range of 0.15 mm to 0.60 mm and is equal to or greater than a thickness of the inner wall portion.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: July 19, 2022
    Assignees: OMRON CORPORATION, OMRON HEALTHCARE CO., LTD.
    Inventors: Kazuyoshi Nishikawa, Shuhei Ojiro, Tomoyuki Nishida
  • Patent number: 11363961
    Abstract: A biological information analysis device including: an indicator extraction unit configured to extract an indicator indicating a cardiac state, from data regarding blood pressure waveforms that are consecutively measured by a sensor that is configured to be worn on a body part of a user and to be capable of non-invasively measuring a blood pressure waveform for each heartbeat; and a processing unit configured to output the indicator extracted by the indicator extraction unit. The indicator extraction unit is configured to extract a value of a cardiac load indicator for each heartbeat, from the data regarding blood pressure waveforms, and calculate the indicator indicating the cardiac state, based on characteristics related to distribution of values of the cardiac load indicator corresponding to a plurality of heartbeats.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: June 21, 2022
    Assignees: Omron Corporation, OMRON HEALTHCARE Co., Ltd.
    Inventors: Hiroshi Nakajima, Hirotaka Wada, Naoki Tsuchiya, Masaaki Kasai, Eriko Kan, Toru Uenoyama, Keiichi Obayashi, Ayako Kokubo, Yuya Ota, Toshikazu Shiga, Mitsuo Kuwabara, Hironori Sato, Ken Miyagawa, Masakazu Tsutsumi
  • Patent number: 11363959
    Abstract: A bio-signal measuring apparatus includes an optical sensor including a photodetector and a light source array disposed around the photodetector, a first electrode disposed between the photodetector and the light source array, and a second electrode disposed on an outer periphery of the light source array. The bio-signal measuring apparatus further includes an impedance measurer configured to measure an impedance of an object, using the first electrode and the second electrode, and a processor configured to determine a contact state between the object and the optical sensor, based on the measured impedance.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: June 21, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun Seok Moon, Seung Jun Lee, Jae Wook Shim, Hyeong Seok Jang
  • Patent number: 11357413
    Abstract: In one embodiment of the invention, a non-invasive method of measuring blood pressure is disclosed. The method includes scanning for ECG data with a portable cuffless blood pressure measuring device including, forming an electronic circuit with a first electrode and a second electrode of the portable cuffless blood pressure measuring device by contacting the first electrode with a user's temple and contacting the second electrode with the user's finger holding the portable cuffless blood pressure measuring device; concurrently scanning for PPG data with the cuffless blood pressure measuring device during ECG scanning by placing the PPG sensor to the user's temple; cross-correlating the ECG data and the PPG data to determine a PWTT for the user; receiving one or more physiological data of the user; and using regression analysis to predict systolic blood pressure of the user in response to the PWTT and the one or more physiological data.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: June 14, 2022
    Assignee: HEALTHY.IO LTD.
    Inventors: Max Little, Martin Zizi, Ivo Clarysse, Bernard Burg, Abel Villca Roque
  • Patent number: 11357415
    Abstract: Light-based non-invasive blood pressure measurement systems and methods that include a sensor having a light emitter and a light detector are disclosed. The light emitter emitting coherent or non-coherent light that is transmitted into and reflected from the tissues of the patient, including reflecting from moving blood. The light reflected from the moving blood being having a Doppler shift and detected by the light detector to generate a non-invasive blood pressure signal. The non-invasive blood pressure signal is processed to determine the instantaneous velocity of the blood. Additionally, pulse wave velocity data is obtained nearly, or substantially, simultaneously with the acquisition of the non-invasive blood pressure signal. Using the pulse wave velocity, the instantaneous velocity of the blood and a density of the blood, an instantaneous blood pressure can be determined.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: June 14, 2022
    Assignee: Stryker Corporation
    Inventor: Clinton T. Siedenburg
  • Patent number: 11357412
    Abstract: An apparatus for monitoring blood pressure of a user comprises a clip having a base with two side members adapted to releasably receive a portion of a body of the user therebetween with an adjustable pressure pad mounted to one of the two side members, spaced apart from the other of two side members by a separation distance, a magnetic field sensor mounted to one of the two side members with a magnet mounted to the other of the two side members opposite to the magnetic field sensor and spaced apart by the separation distance, a motor operably connected to the adjustable pressure pad wherein the separation distance is selectably adjustable by the motor.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: June 14, 2022
    Assignee: 42 HEALTH SENSOR HOLDINGS LTD.
    Inventors: Robert Sheldon, Daniel Roach
  • Patent number: 11350833
    Abstract: There is provided a device comprising a blood pressure sensor for sensing blood pressure and a method for controlling the device. An angle of the device with respect to the direction of gravity is determined (202) and a location of one or more features of the user holding the device is identified (204). A height of the blood pressure sensor relative to a heart level of the user is determined based on the determined angle of the device with respect to the direction of gravity and the identified location of the one or more features of the user (206). The device is controlled based on the determined height of the blood pressure sensor relative to the heart level of the user (208).
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: June 7, 2022
    Assignee: Koninklijke Philips N.V.
    Inventor: Paul Aelen
  • Patent number: 11344207
    Abstract: A pressure pulse wave sensor includes: a sensor chip including: a pressure-sensitive element row configured by a plurality of pressure-sensitive elements arranged in one direction; and a chip-side terminal portion placed in an end portion in the one direction of a pressure-sensitive surface on which the pressure-sensitive element row is formed, and electrically connected to the pressure-sensitive element row; and a substrate including a concave portion, the sensor chip fixed to a bottom surface of the concave portion, a substrate-side terminal portion for being electrically connected to the chip-side terminal portion is disposed on a surface of the substrate in which the concave portion is formed, and the pressure pulse wave sensor further includes: an electroconductive member connecting the chip-side terminal portion and the substrate-side terminal portion to each other; and a protective member covering the electroconductive member.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: May 31, 2022
    Assignee: OMRON HEALTHCARE Co., Ltd.
    Inventors: Yuki Kato, Noriko Shigihara, Masayuki Wakamiya, Toshihiko Ogura
  • Patent number: 11344208
    Abstract: Provided is a blood pressure measuring apparatus, a wrist watch type terminal, and a method of measuring blood pressure. The blood pressure measuring apparatus includes a light source that emits light onto a living body, a light receiver that receives light from the living body, and a signal processing device that calculates the blood pressure based on a detected signal received from the light receiver, wherein the signal processing device includes a subtractor that obtains a subtraction value by subtracting a moving average value of the detected signal in a second duration which is shorter than a first duration from a moving average value of the detection signal in the first duration, an extractor that extracts a feature point of a pulse wave based on the subtraction value, and a converter that converts a feature amount obtained based on the feature point to a blood pressure value.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: May 31, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yosuke Aoyagi, Takeshi Nagahiro, Takahiro Tokumiya
  • Patent number: 11337657
    Abstract: Various embodiments enable calibrating a non-invasive blood pressure measurement device by determining multiple parameters defining a stress-strain relationship of an artery of a patient. The device may obtain output signals from a blood pressure sensor at two or more measurement elevations. The obtained measurement signals may be filtered into AC and quasi-DC components, and results fit to exponential functions to calculate an arterial time constant and a veinous time constant related to vein draining/filling rates. The arterial and veinous time constants may be used to calculate an infinity ratio. The infinity ratio and the obtained sensor output may be used to calculate values for multiple parameters defining a stress-strain relationship of a measured artery. Once defined, this stress-strain relationship may be stored and applied to future sensor output signals (e.g., blood pressure measuring sessions) to infer patient blood pressure.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: May 24, 2022
    Assignee: PHILIPS HEALTHCARE INFORMATICS, INC.
    Inventors: Lars Lading, David Boettcher Baek
  • Patent number: 11338120
    Abstract: Methods for treating a subject for a parasympathetic bias mediated condition are provided. Aspects of the methods include modulating at least a portion of the subject's autonomic nervous system to increase the sympathetic/parasympathetic activity ratio in a manner effective to treat the subject for the parasympathetic bias mediated condition. In some instances, the subject is known to have parasympathetic bias. Also provided are devices that find use in practicing various embodiments of the methods.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: May 24, 2022
    Assignee: Palo Alto Investors LP
    Inventors: Anthony Joonkyoo Yun, Jeremy Thomas Yun, Eric Foster Yun
  • Patent number: 11337617
    Abstract: In an embodiment, PhotoPlethysmoGraphy (PPG) signals are processed by detecting peaks and valleys in the PPG signal, segmenting the PPG signal to provide a time series of PPG waveforms located between two subsequent valleys in the PPG signal, applying to the waveforms in the time series pattern recognition with respect to a reference PPG waveform pattern produced based on a mathematical model of the PPG signal by assigning to the waveforms in the time series a recognition score. A resulting PPG signal is produced by retaining the waveforms in the time series having an assigned recognition score reaching a recognition threshold, and discarding the waveforms in the time series having an assigned recognition score failing to reach the recognition threshold.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: May 24, 2022
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Francesco Rundo, Piero Fallica, Sabrina Conoci, Salvatore Petralia, Massimo Cataldo Mazzillo
  • Patent number: 11330992
    Abstract: A height correction device measures height information on the reference position of the heart and height information on the wrist to which a blood pressure measurement device is attached using communication technology when the body of a subject rotates or moves at the position where the measurement device is attached during the measurement period including the sleep period, subjects the obtained blood pressure measurement values to height correction using height information, and approximates the obtained blood pressure measurement values to blood pressure measurement values measured at the reference position of the heart, to thereby obtain highly accurate measurement values.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: May 17, 2022
    Assignees: OMRON CORPORATION, OMRON HEALTHCARE CO., LTD.
    Inventors: Yumi Kitamura, Takahide Tanaka, Shingo Yamashita
  • Patent number: 11331046
    Abstract: A pulse oximeter includes one or more processor and one or more memory storing instructions. When the instructions are executed by the one or more processor, the one or more processor causes the pulse oximeter to acquire a first signal corresponding to an intensity of first light having a first wavelength and a second signal corresponding to an intensity of second light having a second wavelength, set a presumptive value of an arterial oxygen saturation, acquire an arterial blood component signal and a venous blood component signal corresponding to the presumptive value from the first signal and the second signal, acquire an index value corresponding to a phase difference between the arterial blood component signal and the venous blood component signal, and calculate the arterial oxygen saturation based on a variation of the index value associated with a change of the presumptive value.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: May 17, 2022
    Assignee: Nihon Kohden Corporation
    Inventor: Tetsuo Suzuki
  • Patent number: 11317805
    Abstract: A wearable patient device is provided that includes one or more sensors. The one or more sensors can record one or both of ECG information or phonocardiographic information. The sensor information can be used to determine the blood pressure of a monitored individual, including on a continuous basis. Blood pressure can be determined using one or both of a determined time to empty or fill one or more heart chambers or first and second blood velocities. Vital sign information can be provided to a monitoring individual, including graphical representations of trend information.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: May 3, 2022
    Assignee: Battelle Memorial Institute
    Inventors: Luke J. Gosink, Sean McNeil, Juan M. Brandi-Lozano, Ryan Williams, Joseph R. Bruce, Jonathon D. McCall
  • Patent number: 11291806
    Abstract: The invention relates to an angioplasty device for treating stenoses or occlusions that facilitates the diagnosis and visualisation of the stenosis and the treatment control having a duct dedicated to the injection of the contrast product.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: April 5, 2022
    Assignee: Nexstep Medical
    Inventor: Pierre Sarradon
  • Patent number: 11278242
    Abstract: A wearable health monitoring includes a monitoring main-body, a wearable component and a biometric monitoring module. The wearable component is connected with the monitoring main-body. The biometric monitoring module is disposed within the monitoring main-body and includes a photoelectric sensor, a pressure sensor and an air-pressure-based blood pressure meter. The air-pressure-based blood pressure meter is embedded and positioned in the embedding slot portion of the embedding seat, and includes a gas-collecting actuator and an elastic air-bag. The gas-collecting actuator transports a gas to the elastic air-bag, and the elastic air-bag is inflated and elastically protrudes to attach to a skin tissue of a wearing user. The pressure sensor measures vasoconstriction pulsation under the skin tissue. A detection signal is generated and converted into health data information, which is outputted to the photoelectric sensor for calibrating a calculation of detection thereof to output precise health data information.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: March 22, 2022
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Ching-Sung Lin, Chi-Feng Huang, Yung-Lung Han, Chun-Yi Kuo
  • Patent number: 11272851
    Abstract: A pulse sensing module used in a blood pressure measuring device attached to the skin to allow at least one of systolic pressure Psystolic, diastolic pressure Pdiastolic, and blood pressure variation to be measured according to an embodiment of the present disclosure includes a piezoelectric layer that includes a piezoelectric material for generating a piezoelectric effect due to a pulse and a protective layer that is applied to the piezoelectric layer to protect the piezoelectric layer, allows a poling process of applying a high voltage to the first electrode line and the second electrode line formed on the piezoelectric layer to improve the polarity of the piezoelectric material, and has an opening for allowing a portion of the first electrode line and a portion of the second electrode line to be exposed.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: March 15, 2022
    Assignees: ROBOPRINT CO., LTD, KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Keon Jae Lee, Dae Yong Park, Dong Hyun Kim, Seong Wook Min, Jae Hun An, Jung Kyu Park, Min Su Kim
  • Patent number: 11266372
    Abstract: This document discusses, among other things, systems and methods to determine an indication of contractility of a heart of a patient using received physiologic information, and to determine blood pressure information of the patient using the heart sound information and the determined indication of contractility of the heart. The system can include an assessment circuit configured to determine an indication of contractility of a heart of the patient using first heart sound (S1) information of the patient, and to determine blood pressure information of the patient using second heart sound (S2) information of the patient and the determined indication of contractility of the heart.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: March 8, 2022
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Pramodsingh Hirasingh Thakur, Michael J. Kane, Jeffrey E. Stahmann, Keith R. Maile
  • Patent number: 11266357
    Abstract: A bio-signal feature scaling apparatus may include: a processor configured to execute instructions to: extract a feature from a bio-signal of an object; estimate a cause of change in a bio-state of the object; calibrate a scale factor based on the estimated cause of change in the bio-state; and scale the extracted feature by applying the calibrated scale factor to the extracted feature.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: March 8, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ui Kun Kwon, Chang Soon Park, Dae Geun Jang, Young Soo Kim
  • Patent number: 11266318
    Abstract: A blood pressure monitor includes a processor configured to control a cuff pressure and calculate blood pressure information of a subject based on a cuff pressure signal representing the cuff pressure and a pulse wave signal superimposed on the cuff pressure signal. The processor calculates first blood pressure information of the subject who has maintained a recumbent position for a prescribed time period, maintains the cuff pressure at a first pressure lower by a prescribed value than a systolic blood pressure included in the first blood pressure information, determines if an amplitude of the pulse wave signal is equal to or greater than a threshold value when the cuff pressure is maintained at the first pressure and the subject is in an upright position, assesses an autonomic nerve function of the subject based on a result of the determination, and outputs a result of the assessment.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: March 8, 2022
    Assignees: OMRON HEALTHCARE CO., LTD., OMRON CORPORATION
    Inventor: Toru Deno
  • Patent number: 11266310
    Abstract: Devices, systems, and methods to treat hypertension. In at least one embodiment of a method of the present disclosure, the method comprises the step of obtaining data indicative of a renal artery of a patient with hypertension; and if the data indicates that the renal artery is stiff, relatively stiff, noncompliant, or relatively noncompliant, the method further comprises the step of performing a renal ablation procedure on the renal artery to treat the hypertension.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: March 8, 2022
    Inventor: Ghassan S. Kassab
  • Patent number: 11266321
    Abstract: A vital sign processing device according to an embodiment of the present technology includes a pulse-wave sensor unit, an output unit, and a first filter unit. The pulse-wave sensor unit outputs a pulse-wave signal. The output unit outputs a heart-rate information item on the basis of the output pulse-wave signal. The first filter unit sets a first frequency band on the basis of the output heart-rate information item, and allows the set first frequency band of the pulse-wave signal to pass through the first filter unit.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: March 8, 2022
    Assignee: SONY CORPORATION
    Inventors: Yasuhide Hyodo, Takanori Ishikawa
  • Patent number: 11246500
    Abstract: A biological information measurement device comprising a sensor configured to measure biological information, wherein the sensor is supported by a wearing portion configured to be worn on a head of a human body, and is located at a position opposing at least any of an artery and a vein in the head when in a state in which the wearing portion is worn on the head.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: February 15, 2022
    Assignee: KYOCERA Corporation
    Inventors: Mizuho Hidaka, Norikazu Morioka
  • Patent number: 11246495
    Abstract: Various embodiments are described herein for a system and a method for monitoring aortic pulse wave velocity and blood pressure. A pulse sensor is located on the exterior of an individual's body at a sensor location that allows acquisition of the pulse signal such that a reflected wave component of the pulse signal is present and allows characterization of reflected wave onset. A pulse signal is received from the pulse sensor and a reflected wave onset point is identified in the pulse signal. A reflected wave ratio is determined at the reflected wave onset point and the aortic pulse wave velocity is determined from the reflected wave ratio. The aortic pulse wave velocity can be displayed to the individual, transmitted to an external device and/or stored.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: February 15, 2022
    Assignee: Vital Sines International Inc.
    Inventors: Jesse Goodman, Benoit Lewden
  • Patent number: 11234613
    Abstract: There is provided a respiration estimation method. The respiration estimation method includes a first step (S107) of estimating a breathing rate of a subject based on each of a time-series signal of first data relating to a cardiac function of the subject and a time-series signal of second data relating to an acceleration by a respiratory motion of the subject, a second step (S108) of estimating a breathing rate obtained by filtering noise using a Kalman filter for each of the breathing rate estimated based on the first data and the breathing rate estimated based on the second data, and a third step (S109) of executing weighted averaging processing for the plurality of estimated values of the breathing rates obtained in the second step.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: February 1, 2022
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Takayuki Ogasawara, Takurou Tajima, Kei Kuwabara, Nobuaki Matsuura, Ryoichi Kasahara
  • Patent number: 11234603
    Abstract: A pulse wave detecting device includes a sensor section and a control unit. The sensor section is rotatable about a first axis and is rotatable about a second axis. The control unit determines a rotation angle about the first axis based on DC components of pressure detecting elements included in element rows. Then, in a state where the sensor section is controlled to the optimal pitch angle, the sensor section is pressed against the body surface, and a pulse wave is detected based on pressure signals detected by pressure detecting elements in this state, and vital information is calculated based on the detected pulse wave.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: February 1, 2022
    Assignee: OMRON HEALTHCARE CO., LTD.
    Inventors: Hiroyuki Kinoshita, Tsuyoshi Kitagawa, Shingo Yamashita, Toshihiko Ogura
  • Patent number: 11234609
    Abstract: Techniques and apparatuses for determining fluid volumes of a patient are described. In one embodiment, for example, an apparatus may include at least one memory, and logic coupled to the at least one memory. The logic may be configured to receive baseline bioimpedance information for at least a portion of a human body at a baseline pressure, receive pressurized bioimpedance information of the portion of the human body at a pressurized pressure, the pressurized pressure greater than the baseline pressure and configured to substantially remove blood volume from the portion at the pressurized pressure, and determine at least one of interstitial fluid volume (VIT) or peripheral blood volume (BVP) based on the baseline bioimpedance information and the pressurized bioimpedance information. Other embodiments are described.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: February 1, 2022
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Fansan Zhu, Peter Kotanko, Nathan W. Levin
  • Patent number: 11234604
    Abstract: Described herein are methods, systems, and software for monitoring blood pressure. In some embodiments, a using a mobile device is used. The blood pressure monitoring system utilizes heart rate measurements at two separate locations on the body to calculate a differential pulse arrival time which is used to estimate blood pressure. The heart rate measurements can be taken simultaneously, or they can be taken sequentially while simultaneously taking ECG measurement. If taken sequentially, the heart rate measurements are aligned with the ECG to determine the differential. Accurate, inexpensive, and discreet blood pressure monitoring is thus provided.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: February 1, 2022
    Assignee: AliveCor, Inc.
    Inventor: David E. Albert
  • Patent number: 11229553
    Abstract: A dressing apparatus and methods for facilitating healing, the apparatus and methods involving a dressing member, an electromagnetically conductive element mechanically coupled with the dressing member, and a primary RFID device configured to transmit at least one output signal to the electromagnetically conductive element, to receive at least one return signal from the electromagnetically conductive element, and to provide an alert if the at least one return signal has a strength corresponding to at least approximately a threshold amount of fluid present in the dressing member, whereby healing is facilitated.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: January 25, 2022
    Assignee: SYNAPTIVE MEDICAL INC.
    Inventors: Sean Jy-Shyang Chen, Alison-Jean Kramer, Gal Sela
  • Patent number: 11219379
    Abstract: Systems for monitoring left atrial pressure using implantable cardiac monitoring devices and, more specifically, to a left atrial pressure sensor implanted through a septal wall are presented herein.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: January 11, 2022
    Assignee: PACESETTER, INC.
    Inventors: Phong D. Doan, Apratim Dixit
  • Patent number: 11219377
    Abstract: A measuring device and measuring system which accurately measure a pulse wave propagation velocity. The measuring instrument includes: a fixing part attachable to and detachable from a subject; a first piezoelectric sensor fixed to the fixing part; a second piezoelectric sensor fixed to the fixing part at a prescribed distance from the first piezoelectric sensor; and an analyzing part for calculating a pulse wave propagation velocity in the subject according to time difference between time of detection of peak voltage by the first piezoelectric sensor and time of detection of peak voltage by the second piezoelectric sensor, and the prescribed distance.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: January 11, 2022
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventor: Yasuhiro Shirai