Patents Assigned to Nihon Kohden Corporation
  • Publication number: 20250082946
    Abstract: An automated external defibrillator is configured to automatically execute a defibrillation process of delivering an electric shock for defibrillation to a heart of a subject. The defibrillator includes: a processor; and a memory that stores a computer-readable instruction that when executed by the processor, causes the defibrillator to perform operations including: receiving a physiological signal of the subject through an electrode pad; determining whether the defibrillation process is necessary based on the physiological signal; and determining whether the electrode pad is attached to the subject and a predetermined operation has been performed on the defibrillator. When the defibrillation process is necessary, the defibrillator cancels the defibrillation process while maintaining an on-state of a power supply thereof, in response to a result of the determination as to whether the electrode pad is attached to the subject and the predetermined operation has been performed on the defibrillator.
    Type: Application
    Filed: October 26, 2022
    Publication date: March 13, 2025
    Applicant: NIHON KOHDEN CORPORATION
    Inventors: Ryosuke KUNO, Junichi MIYACHI
  • Patent number: 12245856
    Abstract: A pulse photometer includes: an interface receiving a first signal and a second signal; and a processor configured to calculate a concentration of at least one blood light absorber in the subject, based on the first and second signals. The processor is configured to: acquire a first variation of the first light due to blood pulsation in the subject, acquire a second variation of the second light due to the pulsation, and calculate the concentration of the at least one blood light absorber, based on a first correction amount and a second correction amount. The first correction amount is based on at least one of a first constant, the first variation and the second variation, which are statistically determined. The second correction amount is based on at least one of a second constant, the first variation and the second variation, which are statistically determined.
    Type: Grant
    Filed: May 17, 2021
    Date of Patent: March 11, 2025
    Assignee: NIHON KOHDEN CORPORATION
    Inventor: Katsuyuki Horie
  • Patent number: 12239452
    Abstract: A condition classifying device includes: an input interface configured to receive first data corresponding to a blood refilling state after ischemia of a subject, and second data corresponding to a physiological parameter that exhibits changes caused by vasodilation of the subject; a processor configured to perform a classification of a condition of the subject related to sepsis based on the first data and the second data; and an output interface configured to output a result of the classification.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: March 4, 2025
    Assignee: NIHON KOHDEN CORPORATION
    Inventor: Hideaki Hirabara
  • Patent number: 12239440
    Abstract: A probe connected to a pulse photometer include: a first light-emitting portion having a first light-emitting surface from which first light having a first wavelength used for calculating a concentration of a first light-absorbing substance in blood of a patient is emitted; a second light-emitting portion having a second light-emitting surface from which second light having a second wavelength that is used for calculating the concentration of the first light-absorbing substance is emitted; and a third light-emitting portion having a third light-emitting surface from which third light having a third wavelength that is not used for calculating the concentration of the first light-absorbing substance is emitted. A distance between a first reference point of the first light-emitting portion and a second reference point of the second light-emitting portion is shorter than a distance between a third reference point of the third light-emitting portion and the first reference point.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: March 4, 2025
    Assignee: NIHON KOHDEN CORPORATION
    Inventor: Katsuyuki Horie
  • Publication number: 20250058132
    Abstract: [ABSTRACT] An automated external defibrillator (1) includes: a display (100) that presents at least one of time information regarding a time length until an electric shock is delivered, an illustration regarding reception of the electric shock, and a warning text regarding the reception of the electric shock, and a display controller (103A) that controls the display (100), wherein the display controller (103A) changes a color presented on the display (100) in accordance with the time length until the electric shock is delivered.
    Type: Application
    Filed: January 6, 2023
    Publication date: February 20, 2025
    Applicant: NIHON KOHDEN CORPORATION
    Inventors: Ryosuke KUNO, Masashi SATO, Kyohei YOSHIMURA
  • Publication number: 20250056170
    Abstract: A bone conduction hearing-aid unit that is entirely embedded under a scalp. The bone conduction hearing-aid unit includes a vibration generating device configured to generate vibration, and an anchor fixed to a skull and configured to transmit the vibration to the skull. The vibration generating device is detachably fixed to the anchor.
    Type: Application
    Filed: July 31, 2024
    Publication date: February 13, 2025
    Applicants: The University of Electro-Communications, Ehime University, Keio University, Nihon Kohden Corporation
    Inventors: Takuji KOIKE, Naohito HATO, Sho KANZAKI, Katsuyoshi SUZUKI
  • Publication number: 20250056169
    Abstract: A bone conduction hearing-aid system includes an intracorporeal unit that is embedded under a scalp and that includes an intracorporeal vibration generator configured to generate vibration by receiving a magnetic field frequency, and an extracorporeal unit that is disposed extracorporeally, that is configured to generate the magnetic field frequency and to apply the magnetic field frequency to the intracorporeal unit, and that is configured to generate vibration by an extracorporeal vibration generator. The vibration generated by the intracorporeal unit and the vibration generated by the extracorporeal unit vibrate a skull.
    Type: Application
    Filed: July 31, 2024
    Publication date: February 13, 2025
    Applicants: THE UNIVERSITY OF ELECTRO-COMMUNICATIONS, EHIME UNIVERSITY, KEIO UNIVERSITY, NIHON KOHDEN CORPORATION
    Inventors: Takuji KOIKE, Naohito HATO, Sho KANZAKI, Katsuyoshi SUZUKI
  • Publication number: 20250056171
    Abstract: A bone conduction hearing-aid unit embedded under a scalp. The bone conduction hearing-aid unit includes a vibration generator configured to generate vibration, and an anchor. A magnetic field frequency is applied to the vibration generator from the outside of the scalp to generate vibration. The vibration is transmitted to a skull via the anchor.
    Type: Application
    Filed: July 31, 2024
    Publication date: February 13, 2025
    Applicants: The University of Electro-Communications, Ehime University, KEIO UNIVERSITY, NIHON KOHDEN CORPORATION
    Inventors: Takuji KOIKE, Naohito HATO, Sho KANZAKI, Katsuyoshi SUZUKI
  • Patent number: 12205409
    Abstract: A method for generating a learned model applied to a prediction device that predicts a probability that a subject develops delirium based on a moving image in which the subject appears is provided. The method includes: acquiring first data corresponding to the moving image in which the subject appears; generating, based on the first data, second data corresponding to changes over time in relative positions of a plurality of feature points in a body of the subject in the moving image; generating third data indicating a determination result as to whether the subject develops delirium based on the moving image; and generating the learned model by causing a neural network to learn using the second data and the third data.
    Type: Grant
    Filed: February 22, 2022
    Date of Patent: January 21, 2025
    Assignee: NIHON KOHDEN CORPORATION
    Inventors: Hiroto Sano, Wataru Matsuzawa, Takuya Kawashima
  • Patent number: 12186088
    Abstract: A recording device includes an acquisition unit configured to acquire vital signs through a sensor device having a plurality of electrodes, a recording unit configured to record a bipolar potential of a main channel which is defined by combining the plurality of electrodes, using the vital signs, an addition unit configured to add a mark to each waveform plotted based on variation of the bipolar potential over time, at a predetermined position on a time axis, and an adjusting unit configured to adjust a position of the mark added to each waveform. The adjusting unit is configured to adjust the position of the mark added to the bipolar potential of the main channel, based on bipolar potentials of reference channels including electrodes included in the main channel.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: January 7, 2025
    Assignees: NATIONAL UNIVERSITY CORPORATION SHIGA UNIVERSITY OF MEDICAL SCIENCE, NIHON KOHDEN CORPORATION
    Inventors: Takashi Ashihara, Koji Takizawa, Takeshi Tsuchiya
  • Publication number: 20240393203
    Abstract: A physiological information measurement device includes a sensor connected to an airbag containing air, the sensor being configured to measure pressure received by the airbag from a subject, and a processor configured to process a measurement result of the sensor to obtain information on a dynamic pressure and a static pressure of the subject, and a detector configured to detect an abnormality in a path from the airbag to the sensor, based on a change in the dynamic pressure and/or the static pressure.
    Type: Application
    Filed: May 22, 2024
    Publication date: November 28, 2024
    Applicant: NIHON KOHDEN CORPORATION
    Inventors: Mariko Ito, Hirohito Igarashi, Fumiyuki Matsumura, Minori Hosoi
  • Publication number: 20240389923
    Abstract: A muscle relaxation monitoring device includes a stimulation output unit configured to stimulate a nerve via a stimulation electrode attached to a living body of a subject, a signal detection unit configured to detect, as an electrical signal, a physiological signal generated from a muscle in response to the stimulation to the nerve by the stimulation output unit, via a lead-out electrode attached to the living body, and a controller configured to cause the stimulation output unit to stimulate the nerve, and determine an abnormal installation cause of the lead-out electrode, based on the electrical signal detected by the signal detection unit.
    Type: Application
    Filed: May 13, 2024
    Publication date: November 28, 2024
    Applicant: NIHON KOHDEN CORPORATION
    Inventor: Hiroshi YOSHIHARA
  • Publication number: 20240389979
    Abstract: An information processing apparatus configured to process information acquired from a probe including a base having flexibility to bend along a surface of subject's body and a plurality of ultrasound transducers arranged on the base at predetermined intervals. The information processing apparatus includes a controller configured to acquire transmission information, which relates to ultrasound emitted from the ultrasound transducers of the probe whose base is attached to the subject along the surface of the subject's body, and first reception information, which relates to first reflection received by first ultrasound transducers of the ultrasound transducers after the ultrasound is reflected by a first target, and calculate parameters, which relate to a curve of the base, from the transmission information, the first reception information, and the predetermined intervals between the first ultrasound transducers.
    Type: Application
    Filed: October 5, 2022
    Publication date: November 28, 2024
    Applicant: NIHON KOHDEN CORPORATION
    Inventor: Hiraku TABATA
  • Publication number: 20240382179
    Abstract: A physiological information processing method for automatically acquiring information relevant to a fluid flowing through a body of a subject using an ultrasonic sensor. The ultrasonic sensor includes a plurality of ultrasonic elements. The physiological information processing method includes acquiring reflection signals of ultrasonic waves, identifying, among the ultrasonic elements, two or more ultrasonic elements facing a vessel through which the fluid flows, analyzing a reflection signal of an ultrasonic wave associated with a first ultrasonic element of the two or more ultrasonic elements, analyzing a reflection signal of an ultrasonic wave associated with a second ultrasonic element of the two or more ultrasonic elements, identifying an angle of the vessel with respect to the irradiation direction of the ultrasonic wave, analyzing the reflection signal of the ultrasonic wave associated with the first ultrasonic element or the second ultrasonic element, and acquiring information relevant to the fluid.
    Type: Application
    Filed: August 15, 2022
    Publication date: November 21, 2024
    Applicant: NIHON KOHDEN CORPORATION
    Inventors: Hiraku TABATA, Mitsuhiro OURA, Sou KUMAGAI
  • Patent number: 12138061
    Abstract: A pulse discrimination device is configured to receive an electrical signal from a living body in which a functional pulse propagates at a predetermined time interval, and is configured to discriminate between the functional pulse and a noise pulse which are included in the electrical signal. The pulse discrimination device includes: a pulse detector configured to sequentially detect an electrical pulse included in the electrical signal based on variation in an intensity of the electrical signal received from the living body; and a pulse discrimination unit configured to determine whether the electrical pulse detected by the pulse detector is the functional pulse or the noise pulse based on a detection interval of the electrical pulse detected by the pulse detector and a pulse time predetermined based on the predetermined time interval.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: November 12, 2024
    Assignee: NIHON KOHDEN CORPORATION
    Inventors: Takashi Koyanagi, Kazutora Iinuma, Hiroshi Kubo
  • Patent number: 12121330
    Abstract: An electrocardiogram analyzer includes: an electrocardiogram measuring unit configured to measure an electrocardiogram based on an electrocardiographic signal of an electrode attached to a subject; a motion measuring unit configured to measure motion based on motion information of a sensor attached to the subject; and an analyzer configured to analyze occurrence of serious arrhythmia based on the electrocardiogram measured by the electrocardiogram measuring unit and the motion measured by the motion measuring unit.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: October 22, 2024
    Assignee: NIHON KOHDEN CORPORATION
    Inventors: Masafumi Nagasawa, Kazuhiro Sekikawa, Kei Kimura
  • Publication number: 20240341692
    Abstract: A physiological information analysis device includes an obtaining unit, a determination unit, and a notification controller. The obtaining unit obtains a plurality of pieces of physiological information related to a subject. The determination unit determines effectiveness of the plurality of pieces of physiological information. The notification controller issues, when effectiveness of corresponding first physiological information and second physiological information among the plurality of pieces of physiological information matches, predetermined notification according to the effectiveness, and issues the predetermined notification according to the effectiveness of any physiological information of the first physiological information and the second physiological information when the effectiveness of the first physiological information and the effectiveness of the second physiological information do not match.
    Type: Application
    Filed: April 2, 2024
    Publication date: October 17, 2024
    Applicant: NIHON KOHDEN CORPORATION
    Inventor: Kei KIMURA
  • Publication number: 20240335125
    Abstract: A physiological information measurement device includes a pressure controller configured to control an applied pressure of a cuff to a predetermined site of a subject, a pulse detector configured to detect pulses from a pressure received by the cuff from the predetermined site, a physiological information detector configured to detect physiological information on the subject, a noise classification unit configured to classify whether detection data detected by the pulse detector is noise based on the physiological information, and a blood pressure calculator configured to calculate a blood pressure of the subject based on a plurality of the pulses that are classified as not noise by the noise classification unit.
    Type: Application
    Filed: March 28, 2024
    Publication date: October 10, 2024
    Applicant: NIHON KOHDEN CORPORATION
    Inventor: Shogo Totsuka
  • Publication number: 20240335124
    Abstract: A physiological information measurement device includes: a pressure controller executes a measurement of increasing or decreasing an applied pressure of a cuff with respect to a predetermined site of a subject from an initial value; a pulse detector detects a pulse from a pressure received by the cuff from the predetermined site; a pulse determination unit determines whether the pulse detected by the pulse detector is a correctly detected pulse; a blood pressure calculation possibility determination unit determines whether calculation of a blood pressure of the subject is possible based on the pulse detected by the pulse detector; and a blood pressure calculator calculates the blood pressure of the subject based on a plurality of the pulses determined to be correctly detected by the pulse determination unit.
    Type: Application
    Filed: March 25, 2024
    Publication date: October 10, 2024
    Applicant: NIHON KOHDEN CORPORATION
    Inventors: Takahiro KURODA, Shogo TOTSUKA
  • Patent number: 12109363
    Abstract: A fixing device in which the direction of a tube can be easily fine-adjusted is provided. A fixing device has: an arm portion which extends in the X direction; a fixation portion which is to fix a tube; and a rotation portion which is disposed between the arm portion and the fixation portion, and which rotates the fixation portion about the X direction.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: October 8, 2024
    Assignee: NIHON KOHDEN CORPORATION
    Inventors: Hiroaki Yahagi, Isao Matsubara, Satoru Watanabe