Patents Assigned to Nihon Kohden Corporation
  • Publication number: 20220287581
    Abstract: A monitoring device includes a receiving unit, a processing unit, and an information providing unit. The receiving unit is configured to receive a first photoplethysmogram signal acquired by irradiating a body of a subject with a first light having a first wavelength, and a heartbeat signal corresponding to a heartbeat of the subject. The processing unit is configured to calculate a fundamental frequency of heart rate corresponding to a heart rate of the subject based on the heartbeat signal, and estimate a fundamental frequency of pulse rate of the subject by comparing the fundamental frequency of heart rate with a frequency component of the first photoplethysmogram signal. The information providing unit is configured to provide information acquired based on the fundamental frequency of pulse rate.
    Type: Application
    Filed: March 1, 2022
    Publication date: September 15, 2022
    Applicant: NIHON KOHDEN CORPORATION
    Inventors: Keito KITO, Yoshiharu HARADA, Kenji MIYATA
  • Publication number: 20220284739
    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: Application
    Filed: February 22, 2022
    Publication date: September 8, 2022
    Applicant: NIHON KOHDEN CORPORATION
    Inventors: Hiroto SANO, Wataru Matsuzawa, Takuya Kawashima
  • Patent number: 11433242
    Abstract: A pulse discrimination device is configured to receive electrical signals from a plurality of positions of a living body to which a pacing device for outputting a pacing pulse to cause a heart to beat is attached, and is configured to discriminate the pacing pulse included in the electrical signals. The pulse discrimination device includes: a differential processor configured to calculate a difference of the electrical signals received from the plurality of positions, a sum processor configured to calculate a sum of the electrical signals received from the plurality of positions, and a pulse discrimination unit configured to discriminate the pacing pulse included in the electrical signals based on the difference obtained by the differential processor and the sum obtained by the sum processor.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: September 6, 2022
    Assignee: NIHON KOHDEN CORPORATION
    Inventors: Takashi Koyanagi, Kazutora Iinuma, Hiroshi Kubo
  • Patent number: 11426086
    Abstract: A pressurizing/depressurizing section (4) performs at least one of air feeding to a cuff (20) by way of an air way (3) and air discharging by way of the air way (3) to thereby increase or decrease an internal pressure of the cuff (20). A first controlling section (5) causes the pressurizing/depressurizing section (4) to initiate the air feeding while performing the air discharging to thereby cause the internal pressure to transit from a pressure transient state to a pressure steady state or from the pressure steady state to the pressure transient state. A determining section (6) determines Whether the internal pressure has transited to the pressure steady state by way of the pressure transient state. A second controlling section (7) causes the pressurizing/depressurizing section (4) to suppress or stop the air discharging while continuing the air feeding, in accordance with determination made by the determining section (6).
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: August 30, 2022
    Assignee: NIHON KOHDEN CORPORATION
    Inventors: Ei Nomura, Takashi Usuda
  • Patent number: 11430573
    Abstract: A patient monitoring system includes: a display configured to display, only for a first period, information including changes over time in physiological information acquired from at least one patient; a first storage configured to store, only for a second period longer than the first period, data corresponding to the information displayed on the display; a second storage having a storage capacity different from a storage capacity of the first storage; a user interface configured to receive a data preservation instruction from a user; and one or more processors configured to store in the second storage at least a part of the data that has been in the first storage before the user interface receives the data preservation instruction.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: August 30, 2022
    Assignee: NIHON KOHDEN CORPORATION
    Inventor: Yoshinori Enomoto
  • Patent number: 11426082
    Abstract: A physiological information processing method includes: acquiring electrocardiogram data of a subject; acquiring pulse wave data of the subject; measuring the heart rate based on the electrocardiogram data; measuring the pulse wave transit time based on the electrocardiogram data and the pulse wave data; calculating a cardiac output based on the pulse wave transit time and heart rate which have been measured; calculating the systemic vascular resistance; and correcting the calculated cardiac output based on the systemic vascular resistance.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: August 30, 2022
    Assignee: NIHON KOHDEN CORPORATION
    Inventors: Mami Sakai, Yoshihiro Sugo
  • Patent number: 11412991
    Abstract: A monitoring system monitoring health conditions of multiple many users wearing sensor devices. Each of the sensor devices includes a first measurement section attached to a user and measuring first biological information of the user, a storage section storing information for identifying the user, an analysis section analyzing a measurement result of the first measurement section to determine that the measurement result matches with a first condition and a communication section transmitting a determination result indicating the match with the first condition received from the analysis section and information for identifying the user to communication devices located at equal intervals.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: August 16, 2022
    Assignee: Nihon Kohden Corporation
    Inventors: Fumiyuki Matsumura, Norihito Konno, Hirohiko Ikeya
  • Publication number: 20220218275
    Abstract: A physiological information processing apparatus includes a processor and a memory configured to store a computer readable command. The computer readable command is executed by the processor, the physiological information processing apparatus is configured to acquire physiological information data of a subject to which an anesthetic is administered, specify, based on the physiological information data, at least one of an appropriate management time, which is a time during which anesthesia management is appropriately performed on the subject, and an inappropriate management time, which is a time during which the anesthesia management is not appropriately performed, calculate an anesthesia management evaluation index, which is an evaluation index for the anesthesia. management, based on the at least one of the inappropriate management time and the appropriate management time and an operation time of the subject, and output the calculated anesthesia management evaluation index.
    Type: Application
    Filed: March 26, 2021
    Publication date: July 14, 2022
    Applicant: NIHON KOHDEN CORPORATION
    Inventors: Yoshinori MURAYAMA, Osamu NAGATA
  • Patent number: 11373754
    Abstract: A display device of an anesthesia machine which is communicable with at least one syringe pump that is an external apparatus displays an anesthesia information display screen. When a call switch is operated, a syringe pump information display screen indicating operation information of the syringe pump is displayed on the display device, in addition to the anesthesia information display screen.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: June 28, 2022
    Assignee: NIHON KOHDEN CORPORATION
    Inventor: Yoshihiro Ogino
  • Publication number: 20220192519
    Abstract: A physiological information processing method includes a step of acquiring a parameter related to an amount of blood delivered from a heart of a subject or stiffness of a blood vessel of the subject; a step of displaying a trend graph indicating a change over time in the parameter in a graph display region; a step of determining a reference value of the parameter in accordance with an input operation of a user; and a step of displaying a reference guideline indicating the reference value of the parameter in the graph display region.
    Type: Application
    Filed: December 16, 2021
    Publication date: June 23, 2022
    Applicant: NIHON KOHDEN CORPORATION
    Inventors: Yoshiharu HARADA, Yoshihiro SUGO, Sayaka YAMAZAKI, Makiko FUMOTO
  • Patent number: 11364091
    Abstract: A sensor system including: a wristband (2) which has a storage unit storing patient identification information so that a patient can be identified by the patient identification information; and a sensor (3) which can measure vital information of the patient; wherein: the wristband (2) can transmit the patient identification information to the sensor (3) by human body communication through a surface of a body of the patient in a state in which the wristband (2) and the sensor (3) are attached to the patient; and the sensor (3) associates the patient identification information with the vital information and then transmits the vital information including the patient identification information to a bedside monitor 4.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: June 21, 2022
    Assignee: NIHON KOHDEN CORPORATION
    Inventors: Norihito Konno, Hirohiko Ikeya
  • Publication number: 20220181011
    Abstract: A system includes a medical device that uses a plurality of expendables each having an expiration date, and a computer that can be connected for communication to the medical device. The medical device includes an acquisition unit configured to acquire expiration information relating to an expiration date of a first expendable included in the plurality of expendables in a state that the medical device is not connected to the first expendable, and a transmission unit configured to transmit the expiration information acquired by the acquisition unit. The computer includes a reception unit configured to receive the expiration information, and a managing unit configured to manage the expiration date of the first expendable on the basis of the expiration information received by the reception unit.
    Type: Application
    Filed: November 29, 2021
    Publication date: June 9, 2022
    Applicant: NIHON KOHDEN CORPORATION
    Inventors: Takayuki SUGIYAMA, Fumito HORIUCHI, Yoshio SAKAI
  • Publication number: 20220175318
    Abstract: A reusable portion includes a first connector and a light emitter. A disposable portion includes a support, a second connector and a light detector. The support has a translucent portion and adapted to be attached on a body of a subject. The second connector is supported by the support and configured to couple with the first connector. The light detector is supported by the support and configured to output a signal corresponding to an amount of light incident on the light detector. Under a condition that the first connector and the second connector are coupled, the light emitter is disposed so as to face the translucent portion, so that the first connector is enabled to detect the signal via the second connector.
    Type: Application
    Filed: March 16, 2020
    Publication date: June 9, 2022
    Applicant: NIHON KOHDEN CORPORATION
    Inventors: Hideki FUJISAKI, Kazumasa ITO, Yoshinori UEDA
  • Publication number: 20220167902
    Abstract: An electrocardiogram waveform analysis apparatus includes: a waveform input section to which an electrocardiogram waveform is input; an application range setting section configured to set an application range of a filter in the input electrocardiogram waveform; a filtering section configured to apply a filtering process to the application range of the filter; a beat detector configured to detect beats from the electrocardiogram waveform that has undergone the filtering process; and an output section configured to perform an outputting process based on the detected beats.
    Type: Application
    Filed: February 3, 2020
    Publication date: June 2, 2022
    Applicant: NIHON KOHDEN CORPORATION
    Inventor: Tomoyoshi NATSUI
  • Patent number: 11344238
    Abstract: An attachment tape is configured such that a light emitter and a light detector are mounted on the attachment tape and such that the attachment tape is wrapped around a tissue so as to be attached to the tissue. The light emitter is configured to emit light. The light detector is configured to detect the light emitted from the light emitter. A width dimension of the attachment tape is gradually narrowed from one point along a longitudinal direction of the attachment tape toward another point at a distal end of the attachment tape.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: May 31, 2022
    Assignee: NIHON KOHDEN CORPORATION
    Inventor: Takahiro Abe
  • 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: 11320344
    Abstract: An aseptic sampling flow path kit to be applied to an isolator having a liquid delivery port includes a sampling section, a first flow path that communicates with the sampling section, and that connects an inside of the isolator to an outside of the isolator through the liquid delivery port, and at least one one-way valve which is disposed in the first flow path, and that limits flow of fluid in the first flow path to a direction from the sampling section toward the liquid delivery port. In the kit, at least a part of the first flow path is a germicidal flow path to which a germicidal unit is applicable.
    Type: Grant
    Filed: January 2, 2019
    Date of Patent: May 3, 2022
    Assignees: NIHON KOHDEN CORPORATION, OSAKA UNIVERSITY
    Inventors: Hodaka Makino, Hirotsugu Kubo, Masahiro Kinooka
  • Patent number: 11318456
    Abstract: An aseptic sampling apparatus includes an isolator, a liquid delivery port that is disposed in the isolator, a sampling section that is disposed inside the isolator, a first flow path that communicates with a discharge flow path of the sampling section, and that connects an inside and outside of the isolator to each other through the liquid delivery port, a fluid supplying unit that supplies a fluid to the sampling section, a gas supplying unit that communicates with the fluid supplying unit, and a seal member that prevents the fluid supplied from fluid supplying unit to the discharge flow path from leaking.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: May 3, 2022
    Assignees: NIHON KOHDEN CORPORATION, OSAKA UNIVERSITY
    Inventors: Hodaka Makino, Hirotsugu Kubo, Tetsuya Ogawa, Masahiro Kinooka
  • Patent number: 11312935
    Abstract: An object of the present disclosure is to provide a cell culture system, a cell culture environment evaluation device, and a program, capable of performing evaluation of a culture environment without causing an adverse effect on cell culture. An isolator is provided with a culture environment for housing a cell culture vessel having a culture solution containing cells to be cultured placed therein. A sensing unit measures the state of the culture environment and transmits the measurement result of the culture environment to the outside of the isolator. A control device receives the measurement result and performs evaluation in the culture environment based on the measurement result.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: April 26, 2022
    Assignee: Nihon Kohden Corporation
    Inventors: Hodaka Makino, Wataru Matsuzawa
  • Patent number: RE49055
    Abstract: A non-invasive venous pressure measurement apparatus is provided, including: a first cuff attached to a portion including a vein and an artery in a living body; a pressure control unit that changes a first applied pressure applied by the cuff to the portion; a pulse wave detection unit that detects a pulse wave from a pressure received by the cuff from the portion; another pulse wave detection unit that detects another pulse wave including at least an arterial pulse wave in another portion of the living body; an analyzing unit that analyzes a correlation between the two pulse waves, which are changed as the applied pressure is changed by the pressure control unit changes; and a venous pressure calculation unit that calculates a venous pressure based on the applied pressure and a result of analysis by the analyzing unit.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: May 3, 2022
    Assignee: NIHON KOHDEN CORPORATION
    Inventors: Teiji Ukawa, Tsuneo Takayanagi, Haruka Morimoto, Tatsuo Nishihara, Tatsuo Yoshida, Shiro Adachi, Mitsushi Hyogo