Patents by Inventor Haruka Morimoto
Haruka Morimoto has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240148256Abstract: The presently disclosed subject matter provides a circulating blood volume determination apparatus includes a detection unit configured to detect a pulse wave from a sensor attached to a predetermined portion of a living body, an analysis unit configured to analyze a state of a venous component in the detected pulse wave, and a determination unit configured to perform a determination as to a circulating blood volume based on the analysis result of the analysis unit.Type: ApplicationFiled: May 18, 2022Publication date: May 9, 2024Applicant: NIHON KOHDEN CORPORATIONInventors: Naoki KOBAYASHI, Haruka MORIMOTO, Taiki GOTO
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Patent number: 11903684Abstract: A blood pressure measuring apparatus includes a pressure control unit that controls an applied pressure applied to a region of a living body in which a vein and artery exist by a cuff mountable to the region, a detection unit that detects pressure waveforms in which pulse wave components from the region overlap with the applied pressure, and an analysis unit that obtains a respiratory variation on the waveform of artery and a venous pressure based on the pressure waveforms detected by the detection unit through one-time blood pressure measurement. The analysis unit obtains the respiratory variation on the waveform of artery based on data of a first pressure waveform in a first process, and the venous pressure based on data of a second pressure waveform in a second process and the data of the first pressure waveform.Type: GrantFiled: February 19, 2015Date of Patent: February 20, 2024Assignees: HIROSHIMA UNIVERSITY, NIHON KOHDEN CORPORATIONInventors: Masashi Kawamoto, Noboru Saeki, Ryuji Nakamura, Teiji Ukawa, Tsuneo Takayanagi, Haruka Morimoto
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Publication number: 20220409073Abstract: A venous pressure measurement device includes: an obtaining unit configured to obtain pulse wave information on a pulse wave of a subject measured by a sensor; and a processing unit configured to calculate a value range of venous pressure of the subject based on the pulse wave information obtained by the obtaining unit when the venous pressure of the subject is not estimatable from the pulse wave information obtained by the obtaining unit.Type: ApplicationFiled: June 13, 2022Publication date: December 29, 2022Inventors: Haruka Morimoto, Naoki Kobayashi, Jun Motogi
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Publication number: 20220354375Abstract: A pulse wave analysis device includes a pulse wave acquisition unit, a venous pressure calculation unit, a parameter calculation unit, and an output. The pulse wave acquisition unit acquires a pulse wave of a living body. The venous pressure calculation unit calculates a venous pressure based on a waveform of the pulse wave in a predetermined period. The parameter calculation unit analyzes the waveform in the predetermined period and calculates at least one vital parameter for the living body. The output outputs a calculated venous pressure, a calculated vital parameter, and/or information on accuracy of the venous pressure based on the vital parameter.Type: ApplicationFiled: April 7, 2022Publication date: November 10, 2022Inventors: Haruka MORIMOTO, Naoki KOBAYASHI, Jun MOTOGI
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Publication number: 20220273182Abstract: A testing apparatus for estimating a central venous pressure by measuring a venous pulse by a sensor at a predetermined measurement position of a target person is equipped with an estimation unit which estimates that the central venous pressure of the target person is lower than a reference venous pressure if the venous pulse is not detected by the sensor at the predetermined measurement position of the target person who assumes a particular posture with which a water-gauge pressure corresponding to a vertical distance between the heart of the target person and a peak point, in the vertical direction, of a vein leading from the heart to the measurement position coincides with the reference venous pressure.Type: ApplicationFiled: February 18, 2022Publication date: September 1, 2022Inventors: Haruka MORIMOTO, Naoki KOBAYASHI
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Patent number: 10791942Abstract: A pulse wave analyzing apparatus comprises an acquiring section (11) which acquires a pulse wave that is non-invasively measured, and an analyzer (12) which calculates data on the frequency axis by using the pulse wave, and which obtains the index value of the respiratory-induced variation based on the calculated data on the frequency axis.Type: GrantFiled: December 3, 2015Date of Patent: October 6, 2020Assignees: HIROSHIMA UNIVERSITY, NIHON KOHDEN CORPORATIONInventors: Masashi Kawamoto, Noboru Saeki, Ryuji Nakamura, Teiji Ukawa, Tsuneo Takayanagi, Haruka Morimoto
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Patent number: 10791941Abstract: A venous pressure measurement apparatus includes a pressure controller configured to change a pressure applied from a cuff to a portion of a body where a vein and an artery exist and to which the cuff is attached, a pulse wave detector configured to detect pulse waves from a pressure the cuff receives from the portion of the body, and a venous pressure calculating section configured to calculate a venous pressure based on the applied pressure and the pulse waves detected by the pulse wave detector during a period in which the applied pressure is changed. The pressure controller is configured to execute a plurality of measurement steps, the applied pressure being increased or reduced from an initial value in each of the measurement steps.Type: GrantFiled: August 3, 2016Date of Patent: October 6, 2020Assignee: NIHON KOHDEN CORPORATIONInventors: Teiji Ukawa, Haruka Morimoto
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Publication number: 20200100689Abstract: A venous pressure measurement apparatus includes: a pressure controller that causes an internal pressure of a cuff to he attached to a subject, to change; a pressure detector that detects the internal pressure of the cuff; and a processor that causes the pressure controller to change the internal pressure of the cuff, acquires a statistical value relating to a distribution of amplitudes of a plurality of pressure changes corresponding to pressure vibration that occurs in the cuff, and that is detected by the pressure detector, and estimates a venous pressure of the subject based on a change of the statistical value due to the change of the internal pressure of the cuff.Type: ApplicationFiled: September 27, 2019Publication date: April 2, 2020Applicant: NIHON KOHDEN CORPORATIONInventors: Naoki KOBAYASHI, Haruka MORIMOTO
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Publication number: 20180206744Abstract: A venous pressure measurement apparatus includes a pressure controller configured to change a pressure applied from a cuff to a portion of a body where a vein and an artery exist and to which the cuff is attached, a pulse wave detector configured to detect pulse waves from a pressure the cuff receives from the portion of the body, and a venous pressure calculating section configured to calculate a venous pressure based on the applied pressure and the pulse waves detected by the pulse wave detector during a period in which the applied pressure is changed. The pressure controller is configured to execute a plurality of measurement steps, the applied pressure being increased or reduced from an initial value in each of the measurement steps.Type: ApplicationFiled: August 3, 2016Publication date: July 26, 2018Applicant: NIHON KOHDEN CORPORATIONInventors: Teiji UKAWA, Haruka MORIMOTO
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Patent number: 10010292Abstract: An apparatus and a method for measuring a respiration-induced blood pressure fluctuation are provided. A blood pressure calculating section calculates a pulse pressure of a subject. A pulse wave measuring section measures a pulse wave of the subject. A respiration-induced fluctuation calculating section calculates the respiration-induced blood pressure fluctuation of the subject as a pressure value, based on the pulse pressure and a fluctuation and an amplitude of the pulse wave in a given time period.Type: GrantFiled: January 15, 2016Date of Patent: July 3, 2018Assignee: NIHON KOHDEN CORPORATIONInventors: Teiji Ukawa, Haruka Morimoto
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Publication number: 20180103853Abstract: A method for outputting an index for determining a condition of a blood vessel includes acquiring a diastolic blood pressure for each of upper and lower limbs of a living body, calculating a ratio of the diastolic blood pressure acquired in the acquiring step of the lower limb to the diastolic blood pressure acquired in the acquiring step of the upper limb, and outputting the ratio of the diastolic blood pressures calculated in the calculating step.Type: ApplicationFiled: May 11, 2016Publication date: April 19, 2018Inventors: Haruka MORIMOTO, Teiji UKAWA, Takehito SUZUKI
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Publication number: 20170273582Abstract: A pulse wave analyzing apparatus comprises an acquiring section (11) which acquires a pulse wave that is non-invasively measured, and an analyzer (12) which calculates data on the frequency axis by using the pulse wave, and which obtains the index value of the respiratory-induced variation based on the calculated data on the frequency axis.Type: ApplicationFiled: December 3, 2015Publication date: September 28, 2017Inventors: Masashi Kawamoto, Noboru Saeki, Ryuji Nakamura, Teiji Ukawa, Tsuneo Takayanagi, Haruka Morimoto
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Patent number: 9743846Abstract: 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: GrantFiled: March 29, 2012Date of Patent: August 29, 2017Assignee: Nihon Kohden CorporationInventors: Teiji Ukawa, Tsuneo Takayanagi, Haruka Morimoto, Tatsuo Nishihara, Tatsuo Yoshida, Shiro Adachi, Mitsushi Hyogo
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Patent number: 9445727Abstract: An apparatus for evaluating a vascular endothelial function, includes: a cuff pressure controlling unit configured to perform continuous pressure stimulation on a part of a body of a subject for a predetermined time, by using a cuff adapted to be wrapped around the part of the body of the subject; a cuff pressure detecting unit configured to detect a cuff pressure from an output of a pressure sensor connected to the cuff; a pulse wave detecting unit configured to detect a pulse wave from the output of the pressure sensor; and an analyzing unit configured to evaluate the vascular endothelial function by comparing vessel viscoelastic indexes which are obtained from the pulse wave detected in two of zones before, during, and after the pressure stimulation, and which exclude an amplitude of the pulse wave.Type: GrantFiled: December 12, 2012Date of Patent: September 20, 2016Assignees: HIROSHIMA UNIVERSITY, NIHON KOHDEN CORPORATIONInventors: Toshio Tsuji, Masao Yoshizumi, Yukihito Higashi, Masashi Kawamoto, Hideo Ozawa, Teiji Ukawa, Tsuneo Takayanagi, Haruka Morimoto, Ryosuke Kubo
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Publication number: 20160213332Abstract: An apparatus and a method for measuring a respiration-induced blood pressure fluctuation are provided. A blood pressure calculating section calculates a pulse pressure of a subject. A pulse wave measuring section measures a pulse wave of the subject. A respiration-induced fluctuation calculating section calculates the respiration-induced blood pressure fluctuation of the subject as a pressure value, based on the pulse pressure and a fluctuation and an amplitude of the pulse wave in a given time period.Type: ApplicationFiled: January 15, 2016Publication date: July 28, 2016Inventors: Teiji UKAWA, Haruka MORIMOTO
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Publication number: 20150245772Abstract: A blood pressure measuring apparatus includes a pressure control unit that controls an applied pressure applied to a region of a living body in which a vein and artery exist by a cuff mountable to the region, a detection unit that detects pressure waveforms in which pulse wave components from the region overlap with the applied pressure, and an analysis unit that obtains a respiratory variation on the waveform of artery and a venous pressure based on the pressure waveforms detected by the detection unit through one-time blood pressure measurement. The analysis unit obtains the respiratory variation on the waveform of artery based on data of a first pressure waveform in a first process, and the venous pressure based on data of a second pressure waveform in a second process and the data of the first pressure waveform.Type: ApplicationFiled: February 19, 2015Publication date: September 3, 2015Applicants: NIHON KOHDEN CORPORATION, HIROSHIMA UNIVERSITYInventors: Masashi KAWAMOTO, Noboru SAEKI, Ryuji NAKAMURA, Teiji UKAWA, Tsuneo TAKAYANAGI, Haruka MORIMOTO
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Publication number: 20120253209Abstract: 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: ApplicationFiled: March 29, 2012Publication date: October 4, 2012Applicant: Nihon Kohden CorporationInventors: Teiji UKAWA, Tsuneo Takayanagi, Haruka Morimoto, Tatsuo Nishihara, Tatsuo Yoshida, Shiro Adachi, Mitsushi Hyogo
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Patent number: RE48076Abstract: 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: GrantFiled: April 29, 2019Date of Patent: July 7, 2020Assignee: NIHON KOHDEN CORPORATIONInventors: Teiji Ukawa, Tsuneo Takayanagi, Haruka Morimoto, Tatsuo Nishihara, Tatsuo Yoshida, Shiro Adachi, Mitsushi Hyogo
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Patent number: RE49055Abstract: 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: GrantFiled: July 6, 2020Date of Patent: May 3, 2022Assignee: NIHON KOHDEN CORPORATIONInventors: Teiji Ukawa, Tsuneo Takayanagi, Haruka Morimoto, Tatsuo Nishihara, Tatsuo Yoshida, Shiro Adachi, Mitsushi Hyogo