Patents Examined by Marjan Fardanesh
  • Patent number: 11957440
    Abstract: The present disclosure relates to a device, method and system for calculating, estimating, or monitoring the physiological parameters of a subject. At least one processor, when executing instructions, may perform one or more of the following operations. A first signal representing a pulse wave relating to heart activity of a subject may be received. A plurality of second signals representing time-varying information on the pulse wave may be received. A blood oxygen level of the subject based on the plurality of second signals may be determined. A first feature in the first signal may be identified. A second feature in one of the plurality of second signals may be identified. A pulse transit time based on a difference between the first feature and the second feature may be computed. A blood pressure of the subject may be calculated based on the pulse transit time.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: April 16, 2024
    Inventor: Chuanmin Wei
  • Patent number: 11951186
    Abstract: Some embodiments disclosed herein pertain to indicator compounds used to detect the presence of and/or an amount of an analyte. In some embodiments, the indicator compounds are fusion proteins. In some embodiments, when the analyte binds to the indicator compound, the indicator compound undergoes a conformational change. In some embodiments, the conformational change results in a luminescent signal that allows quantification of the amount of analyte present.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: April 9, 2024
    Assignee: Willow Laboratories, Inc.
    Inventors: Venkatramanan Krishnamani, Sergei Petrovich Balashov, Kevin Hughes Pauley, Ruiqi Long, Hung The Vo
  • Patent number: 11950905
    Abstract: The present invention relates to a device for measuring a physiological parameter of a human limb such as peripheral capillary oxygen saturation. The device comprises a hollow elastic sleeve of a predetermined shape comprising a cavity having a closed-loop cross-section for enclosing the limb; first and second arms, each comprising a hinge portion between a coupling portion and a handle portion, the coupling portion of the first and second arms being adapted to be coupled, respectively, to first and second diametrically-opposite longitudinal sections of the sleeve; and a physiological sensor for interacting with the limb enclosed in said cavity. The hollow elastic sleeve holds the first and the second arms and causes their hinge portions to mutually engage to form a hinge mechanism so that, by applying a compression force on the handle portions, the first and second arms rotate about the hinge mechanism expanding the cavity, allowing the limb to be received therein.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: April 9, 2024
    Inventors: Ozgur Tasar, Lieven Adriaenssen, Job Lipsch
  • Patent number: 11950890
    Abstract: Devices, systems, and methods for monitoring patient hemodynamic status, systemic vascular resistance, reversal of cardiac and respiratory rates, and patient respiratory volume or effort are disclosed. A peripheral venous pressure is measured and used to detect levels, changes, or problems relating to patient blood volume. The peripheral venous pressure measurement is transformed from the time domain to the frequency domain for analysis. A heart rate frequency is identified, and harmonics of the heart rate frequency are detected and evaluated to determine, among other things, hypovolemia or hypervolemia, systemic vascular resistance, and of cardiac and respiratory rates, and patient respiratory volume or effort.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: April 9, 2024
    Inventors: Jonathan Handler, James Martucci, Kyle Hocking, Susan Eagle, Colleen Brophy, Richard Boyer, Franz Baudenbacher
  • Patent number: 11944431
    Abstract: A system and a method for creating a stable and reproducible interface of an optical sensor system for measuring blood glucose levels in biological tissue include a dual wedge prism sensor attached to a disposable optic that comprises a focusing lens and an optical window. The disposable optic adheres to the skin to allow a patient to take multiple readings or scans at the same location. The disposable optic includes a Petzval surface placed flush against the skin to maintain the focal point of the optical beam on the surface of the skin. Additionally, the integrity of the sensor signal is maximized by varying the rotation rates of the dual wedge prisms over time in relation to the depth scan rate of the sensor. Optimally, a medium may be injected between the disposable and the skin to match the respective refractive indices and optimize the signal collection of the sensor.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: April 2, 2024
    Assignee: Masimo Corportation
    Inventors: Matthew J. Schurman, Phillip William Wallace, Walter J. Shakespeare, Howard P. Apple, William Henry Bennett
  • Patent number: 11931146
    Abstract: The present invention relates to a sensor configuration (1) for non-invasive measurement of parameters of a body tissue with a sensor unit (10) and a sensor mat (12) for detachable placement of the sensor configuration (1) on a body surface (20). Furthermore the sensor unit (10) of the sensor configuration (1) is connectible to a contact head (16), which is designed for electrical contacting of the sensor unit (10) and for supply of light from a light source to the sensor unit (10), the sensor unit (10) being designed as a flexible printed circuit board with optical components, at least comprising a light detector device (2), in order to detect light that is emitted into the body tissue and has passed through the latter, a first contact means (30) and conducting tracks (5) for operative connection of the sensor unit (10) to the contact head (16).
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: March 19, 2024
    Inventors: Juerg Hans Froehlich, Fabian Schneider, Markus Hugo Muser, Marco Zahner, Dirk Baumann
  • Patent number: 11931178
    Abstract: The present invention relates to a wearable device for healthcare and method for using the device. More specifically, the wearable device is worn on a finger for measuring the health data of the user, selected from one or more of heart rate, blood oxygen saturation, heart rate variability. Based on the measured data, the sleep quality can be monitored and recorded. Disorders such as obstructive sleep apnea (OSA), can be detected. The wearable device may include an optical sensor coupled with or embedded in a main body including a visible light emitter, an IR light emitter and a light detector being arranged along a longitudinal direction of the finger. During operation of the wearable device, the heart rate is monitored based on a detected light signal. When the heart rate is higher than an adaptive threshold, both heart rate and blood oxygen saturation are monitored.
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: March 19, 2024
    Assignee: Belun Technology Company Limited
    Inventors: Hung Tat Chen, Kwan Wai To, Wenbo Gu
  • Patent number: 11911152
    Abstract: An apparatus for estimating a concentration of an analyte includes an optical sensor configured to emit light toward an object and receive light reflected from the object; and a processor configured to obtain a ratio of an absorption coefficient to a scattering coefficient based on the received light, obtain a first absorption spectrum of the object based on the obtained ratio, obtain a second absorption spectrum by eliminating a scattering correction spectrum from the first absorption spectrum, the scattering correction spectrum corresponding to a nonlinear change in the scattering coefficient according to a wavelength of the emitted light, and estimate a concentration of an analyte based on the second absorption spectrum.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: February 27, 2024
    Inventors: Jun Ho Lee, Sang Kyu Kim
  • Patent number: 11903699
    Abstract: A multi-channel measurement device for measuring properties of human tissue, may comprise a microcontroller and first and second source/sensor complexes. The first source/sensor complex may include a first housing having a first measurement portion, a first light sensor coupled to the microcontroller and exposed to the first measurement portion, and a first plurality of light sources coupled to the microcontroller and exposed to the first measurement portion. The second source/sensor complex may include a second housing having a second measurement portion, a second light sensor coupled to the microcontroller and exposed to the second measurement portion, and a second plurality of light sources coupled to the microcontroller and exposed to the second measurement portion. The first and second source/sensor complexes are coupled to each other such that the first measurement portion is opposite the second measurement portion and human tissue may be placed between the first and second measurement portions.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: February 20, 2024
    Inventor: Rijul Gupta
  • Patent number: 11889994
    Abstract: Health information for a woman can be used to predict timing of events related to the woman's menstrual cycle. If available, historical cycle information for a woman can be used to predict upcoming cycle events, such as the start and stop of menstruation. To improve the accuracy of those predictions, one or more health metrics are monitored for the woman that can be correlated with the menstrual cycle. These can include, for example, the resting heart rate (RHR), blood oxygen concentration (SpO2) level, and hemoglobin concentration, among other such options. The metrics are monitored over time to determine patterns that can be correlated with menstrual cycle. This information can then be used to update the predictive model, as well as to update individual event predictions. Information about the predictions, and updates to the predictions, can be surfaced accordingly.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: February 6, 2024
    Assignee: FITBIT, INC.
    Inventors: Belen Lafon, Chris Hanrahan Sarantos, Conor Joseph Heneghan, Logan Niehaus, Jaclyn Leverett Wasson, Peter Colin Dess, Amir Bahador Farjadian, Zachary Todd Beattie, Atiyeh Ghoreyshi, Allison Shih Wu
  • Patent number: 11890095
    Abstract: A sensor head for a compact oximeter sensor device includes light sources and light detectors. A compact oximeter sensor device implementation is entirely self-contained, without any need to connect, via wires or wirelessly, to a separate system unit. The sources and detectors are arranged in a circular arrangement having various source-detector pair distances that allow for robust calibration and self-correction in a compact probe. Other source-detector arrangements are also possible.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: February 6, 2024
    Assignee: ViOptix, Inc.
    Inventors: Kate LeeAnn Bechtel, Brian Wilfley
  • Patent number: 11883168
    Abstract: An oxygen saturation measuring apparatus capable of measuring arterial blood oxidation saturation (SpO2), and tissue oxygen saturation (rSO2), safely, easily and economically at a desired position of a biological body for a long time continuously. A ROM stores the distance information between a light emitting unit and a light receiving unit situated corresponding to the depth of a target intended to be measured for tissue oxygen saturation, a light emission driving unit makes the light emitting unit emit light in an amount of light corresponding to the distance information, MPU makes the light emitting unit emit a pulses capable of measuring the tissue oxygen saturation, MPU applies pulse capable of measuring the tissue oxygen saturation from the light emission driving unit to the light emitting unit, and the pulse increasing unit increases the amount of pulses from MPU for a predetermined time to pulses capable of measuring the arterial blood oxygen saturation.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: January 30, 2024
    Assignee: CAPMET, Inc.
    Inventor: Haruo Yamamura
  • Patent number: 11883129
    Abstract: An optical physiological finger sensor system including an ergonomic interface shaped into a natural curve of a user's hand and finger.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: January 30, 2024
    Assignee: Cercacor Laboratories, Inc.
    Inventor: Gregory A. Olsen
  • Patent number: 11883167
    Abstract: A device to extract physiological information has at least one laser emitter. At least one optical detector is used to detect a change in optical power absorption. The laser emitter and optical detector are wire bonded into a chip scale module.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: January 30, 2024
    Inventor: David Schie
  • Patent number: 11877867
    Abstract: An physiological measurement device provides a device body having a base, legs extending from the base and an optical housing disposed at ends of the legs opposite the base. An optical assembly is disposed in the housing. The device body is flexed so as to position the housing over a tissue site. The device body is unflexed so as to attach the housing to the tissue site and position the optical assembly to illuminate the tissue site. The optical assembly is configured to transmit optical radiation into tissue site tissue and receive the optical radiation after attenuation by pulsatile blood flow within the tissue.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: January 23, 2024
    Assignee: Masimo Corporation
    Inventors: Yassir Abdul-Hafiz, Ammar Al-Ali, Kevin Forrest, Eugene Mason, John Schmidt, Virginia Thanh Ta
  • Patent number: 11872037
    Abstract: A patient monitoring sensor having a communication interface, through which the patient monitoring sensor can communicate with a monitor is provided. The patient monitoring sensor includes a light-emitting diode (LED) communicatively coupled to the communication interface and a detector, communicatively coupled to the communication interface, capable of detecting light. The patient monitoring sensor includes a bandage that is constructed as a single piece such that plural layers of the bandage are configured together to allow for a leaflet opening of the bandage, for example using at least one removable liner or tab, to insert a pulse oximetry circuit therein.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: January 16, 2024
    Assignee: COVIDIEN LP
    Inventors: Derek L. Moody, Shai Fleischer, Jacob Dove, Sarah L. Hayman, Linden A. Reustle
  • Patent number: 11872038
    Abstract: An example system includes an elongated body, a fluorescent material, and a diffuse reflector. The elongated body defines a lumen and includes a proximal portion and a distal portion. The fluorescent material is configured to be in fluid communication with a fluid in the lumen. The diffuse reflector is configured to diffuse excitation light received from an excitation light source and direct the diffused excitation light toward the fluorescent material and diffuse the fluoresced light received from the fluorescence material and direct the fluoresced light toward a fluorescent light detector.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: January 16, 2024
    Assignee: COVIDIEN LP
    Inventor: Jacob D. Dove
  • Patent number: 11864890
    Abstract: An optical measurement device includes a light source, a first detector, and a second detector. The light source emits light to a measurement site of a patient and one or more detectors detect the light from the light source. At least a portion of a detector is translucent and the light passes through the translucent portion prior to reaching the measurement site. A detector receives the light after attenuation and/or reflection or refraction by the measurement site. A processor determines a light intensity of the light source, a light intensity through a tissue site, or a light intensity of reflected or refracted light based on light detected by the one or more detectors. The processor can estimate a concentration of an analyte at the measurement site or an absorption or reflection at the measurement site.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: January 9, 2024
    Assignee: Cercacor Laboratories, Inc.
    Inventors: Kevin Pauley, Cristiano Dalvi, Hung Vo, Jesse Chen, Ferdyan Lesmana, Jeroen Poeze, Sean Merritt
  • Patent number: 11864744
    Abstract: A biopsy device comprises a sheath equipped with a removable stylet. The sheath including a terminus with a distal chamber configured with a forward facing cutting edge comprising a plurality of movable blades. The plurality of movable blades including two counter rotating blades configured perpendicular or beveled relative to a long axis of the distal chamber, each counter rotating blade configured to pivot from a separate axis. The biopsy device further comprises a manipulation end controllable by a user to plunge the forward facing cutting edge at a sampling locus after removal of the removable stylet at a depth and to engage a cutting action by the plurality of movable blades at the depth selected to acquire at least one specimen storable in the distal chamber.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: January 9, 2024
    Inventors: Robert M. Clements, Andrew R. Face
  • Patent number: 11865241
    Abstract: A patient monitoring system may be used with catheters to monitor the infusion and drainage of any solution into the human body. The system may be used, for example, with in-dwelling catheters for peritoneal dialysis in end stage renal disease (ESRD) patients, urinary tract catheters, insulin pumps in diabetic patients, feeding tubes and central venous line catheters. The patient monitoring system includes one or more fluid pathways for infusing into and/or draining solutions out of the catheter, and one or more sensors to monitor the fluid. The patient monitoring system transmits the patient monitoring data to a database, allowing data storage, processing, and access through graphical user interfaces to patients and providers via device applications or browser-based web access portals.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: January 9, 2024
    Assignee: GastroKlenz Inc.
    Inventors: Aly R. Elbadry, Eric Hsiang Yu, Ahmad Naim Saleh, Michael Austin Snyder