Abstract: The present invention includes a pressing cuff for compressing a measurement target site. A sensing cuff containing a pressure transmission fluid is provided on an inner circumferential side of the pressing cuff. A pressure at a rising start point and a pressure at a peak point indicated by a pressure pulse wave for each beat are obtained by subtracting a direct current component of data representing a pressure of the pressing cuff from data representing a pressure of the sensing cuff in the process of depressurization. A first time point at which the pressure at the peak point for each beat transitions between a zero level and a positive value is obtained. A second time point at which the pressure at the rising start point for each beat transitions between the zero level and the positive value is obtained.

Abstract: An electronic sphygmomanometer includes a cuff pressure control unit, a pressure detection unit, and a blood pressure measurement unit that extracts a pulse wave signal and measures blood pressure based on the pulse wave signal. A pulse wave interval calculation unit obtains a data group representing pulse wave intervals based on the pulse wave signal obtained only in one depressurization process for a subject for each one measurement occasion. A determination unit aggregates data groups for three or more measurement occasions to obtain an average value of the pulse wave intervals, and determines whether or not there is a possibility that atrial fibrillation occurred based on whether or not there is data of an irregular pulse wave exceeding an allowable range with respect to the average value.

Abstract: A blood pressure measuring cuff of the present invention includes: an outer cloth that extends in a longitudinal direction in a band shape and surrounds a site to be measured; a pressing fluid bag that is provided to extend along the longitudinal direction on a side of the outer cloth facing the site to be measured and compresses the site to be measured; a sound acquisition fluid bag that is provided between the outer cloth and the pressing fluid bag in a thickness direction perpendicular to the outer cloth and acquires a sound from the site to be measured via the pressing fluid bag; a first fluid pipe connected to the pressing fluid bag so as to be capable of flowing a fluid; and a second fluid pipe connected to the sound acquisition fluid bag so as to be capable of flowing a fluid, separately from the first fluid pipe.

Abstract: A sphygmomanometer according to the present invention includes a blood pressure measuring cuff worn around a site to be measured, a pressure device that pressurizes or depressurizes the cuff, and a sound detection device that detects a sound generated by the site to be measured via the cuff. An amplification factor setting unit measures a first passage time required for the pressure of the cuff to pass through a first pressure range in a pressurization process of the cuff, and variably sets an amplification factor for a Korotkoff sound component according to the first passage time. A blood pressure calculation unit receives an output of the sound detection device according to the sound from the cuff, amplifies the Korotkoff sound component included in the output at a set amplification factor, and calculates a blood pressure of the site to be measured.

Abstract: A sphygmomanometer includes a frame that spatially demarcates a region in which a display screen is displayed. On the display screen, a scale indication for making a value of pressure readable is displayed along one direction. On the display screen, a mark that represents a pressure of a cuff by a position of the mark with respect to the scale indication is displayed. When the pressure changes, a display control unit performs control to slide the scale indication with respect to the frame along the one direction at a slide speed corresponding to a predetermined pressure change rate or a pressure change rate obtained by actual measurement in a pressurizing process or a depressurizing process of the cuff so that the mark falls within the frame.

Abstract: A sphygmomanometer includes a first type schedule, a second type schedule, and a control unit that disables one of first blood pressure measurement scheduled based on the first type schedule and second blood pressure measurement scheduled based on the second type schedule or changes a start time of the scheduled first blood pressure measurement or a start time of the scheduled second blood pressure measurement to provide idle time between the first blood pressure measurement and the second blood pressure measurement in a case where a time zone of the scheduled first blood pressure measurement and a time zone of the scheduled second blood pressure measurement at least partially overlap with each other or in a case where a time difference between the time zone of the first blood pressure measurement and the time zone of the second blood pressure measurement is equal to or less than a predetermined value.

Abstract: A blood pressure measuring cuff according to the present invention includes a pressing cuff which is belt-shaped, is wrapped around a part to be measured, and receives supply of a pressurizing fluid to press the part to be measured. An arterial pressure sensor for detecting pressure applied to an artery passing portion of the part to be measured by the pressing cuff is disposed at a portion of an inner peripheral surface of the pressing cuff which should face an artery of the part to be measured, separately from the pressing cuff.

Abstract: A sphygmomanometer performs blood pressure measurement by an oscillometric method using a pressure sensor detecting pressure inside a blood pressure measuring cuff by temporarily pressing a wrist as a measurement target site with the cuff, also including: a mode operation unit inputting an instruction mode for switching a mode to a nighttime blood pressure measurement mode wherein the blood pressure measurement is automatically started according to a predetermined schedule; a first determination unit that temporarily pressurizes the cuff to a pressure lower than a cuff pressure used for the blood pressure measurement along with an input instruction mode and a shift to the nighttime blood pressure measurement mode, and determines a winding state of the cuff on the basis of an output of the pressure sensor; and a notification unit that, along with determination of the winding state of the cuff, notifies the determined winding state of the cuff.

Abstract: A sphygmomanometer includes a storage unit that stores a measured blood pressure value. In a nighttime blood pressure measurement mode, blood pressure measurement is automatically started according to a schedule, and a blood pressure is measured when a blood pressure measuring cuff is in a pressurization process or a depressurization process. Further, it is determined whether or not a current blood pressure value measured is different from a past blood pressure value stored in the storage unit beyond an allowable range. When the current blood pressure value is different from the past blood pressure value beyond the allowable range, it is discriminated which phenomenon among a plurality of predetermined types of phenomena has occurred in the subject. A time of remeasurement with respect to a measurement time of the current blood pressure value is variably set according to which phenomenon among the plurality of types of phenomena has occurred.

Abstract: A sphygmomanometer has a nocturnal blood pressure measurement mode in which blood pressure measurement automatically starts according to a predetermined schedule. The sphygmomanometer includes a single operation switch for inputting an instruction to suspend or to recover the nocturnal blood pressure measurement mode, a suspension processing unit to perform a process for transitioning to a measurement suspension state in which blood pressure measurement does not start even when a set time arrives, when the single operation switch is operated at a first time, in the nocturnal blood pressure measurement mode, and a recovery processing unit to perform a process for recovering to the nocturnal blood pressure measurement mode, under condition that the single operation switch is operated at a second time or after a lapse of a predetermined time from a clock time when the single operation switch is operated at the first time, in the measurement suspension state.

Abstract: The instrument according to the present invention includes a band-like belt worn around a wrist, and a main body disposed at a portion of the belt corresponding to the volar surface or the dorsal surface of the wrist. An element for executing a blood pressure measuring function is mounted in the main body. A battery for supplying electric power to the element mounted in the main body is disposed at a portion of the belt located away from the main body in the circumferential direction around the wrist. A wire is provided in the belt, extends in the circumferential direction along the fluid bag, and electrically connects the element mounted in the main body and the battery. In the belt, the wire is disposed away from the fluid bag in the width direction perpendicular to the circumferential direction and extends along an edge section of the belt.

Abstract: The present invention has a normal blood pressure measurement mode in which a blood pressure measurement is performed according to a blood pressure measurement instruction, and a nighttime blood pressure measurement mode in which a blood pressure measurement is automatically started according to a predetermined schedule. When being switched by an mode operation unit from the normal blood pressure measurement mode to the nighttime blood pressure measurement mode, an algorithm for blood pressure calculation by an oscillometric method is switched and set from an algorithm for a sitting position to an algorithm for a supine position. A blood pressure value is calculated using an algorithm currently set for the blood pressure calculation by the oscillometric method.

Abstract: A sensor assembly of the present invention includes a fluid chamber. A pressure transmitting fluid disposed facing an artery passing portion of a part to be measured via a film which forms a part of an outer wall of the fluid chamber is accommodated in the fluid chamber. A pressure sensor is provided for detecting pressure of the pressure transmitting fluid as pressure applied to the artery passing portion of the part to be measured. Plate members each having a flat shape along a longitudinal direction of a wrist as the part to be measured are disposed on a side opposite to the part to be measured along the film.

Abstract: An electronic blood pressure meter according to the present invention includes: a cuff pressure control unit capable of changing a pressure of a cuff worn on a measurement site; a pressure detection unit that detects a cuff pressure signal representing the pressure of the cuff; a variation amount calculation unit that obtains a blood pressure variation amount synchronized with respiration based on the cuff pressure signal; a correspondence relation storage unit that stores a predetermined correspondence relation between a blood pressure variation amount synchronized with respiration and a heart failure index that numerically represents relative severity of heart failure and corresponds to a value of a biomarker indicating severity of heart failure; and an index output unit that refers to the correspondence relation stored in the correspondence relation storage unit and outputs the heart failure index corresponding to the blood pressure variation amount obtained by the variation amount calculation unit.

Abstract: A sphygmomanometer includes a frame that spatially demarcates a region in which a display screen is displayed. On the display screen, a scale indication for making a value of pressure readable is displayed along one direction. On the display screen, a mark that represents a pressure of a cuff by a position of the mark with respect to the scale indication is displayed. When the pressure changes, a display control unit performs control to slide the scale indication with respect to the frame along the one direction at a slide speed corresponding to a predetermined pressure change rate or a pressure change rate obtained by actual measurement in a pressurizing process or a depressurizing process of the cuff so that the mark falls within the frame.

Abstract: A measurement device includes a pulse wave signal acquisition unit, a pulse wave velocity calculator, a transfer function calculator, a phase diagram classifier, and an aneurysm determinator. The pulse wave signal acquisition unit acquires time-series pulse wave signals of each of an upper arm and an ankle of the subject. The pulse wave velocity calculator obtains a brachial-ankle pulse wave velocity based on the pulse wave signal of the upper arm and the pulse wave signal of the ankle. The transfer function calculator calculates a transfer function from the pulse wave signal of the upper arm and the pulse wave signal of the ankle. The phase diagram classifier classifies the phase diagram of each subject into any one of four groups. The aneurysm determinator determines presence or absence of the abdominal aortic aneurysm by a criterion set according to each group.

Abstract: An electronic sphygmomanometer includes a cuff including an air bladder, a pressure sensor, an artery volume sensor, and a computation device. The computation device includes an inner pressure control section, a volume sensor signal receive section for receiving a pulse wave signal detected by the artery volume sensor, a pressure sensor signal receive section for receiving a pressure pulse wave signal superimposed on the inner pressure of the air bladder and detected by the pressure sensor, a judgment section for choosing either the pulse wave signal or the pressure pulse wave signal as a signal for calculating pulse rate of the patient during a period when the inner pressure of the air bladder is increased and/or decreased by the inner pressure control section, and a pulse rate calculation section for calculating pulse rate of the patient based on the pulse wave signal and the signal chosen by the judgment section.

Abstract: A blood pressure measuring cuff according to the present invention includes a pressing cuff which is belt-shaped, is wrapped around a part to be measured, and receives supply of a pressurizing fluid to press the part to be measured. An arterial pressure sensor for detecting pressure applied to an artery passing portion of the part to be measured by the pressing cuff is disposed at a portion of an inner peripheral surface of the pressing cuff which should face an artery of the part to be measured, separately from the pressing cuff.

Abstract: A sensor assembly of the present invention includes a fluid chamber. A pressure transmitting fluid disposed facing an artery passing portion of a part to be measured via a film which forms a part of an outer wall of the fluid chamber is accommodated in the fluid chamber. A pressure sensor is provided for detecting pressure of the pressure transmitting fluid as pressure applied to the artery passing portion of the part to be measured. Plate members each having a flat shape along a longitudinal direction of a wrist as the part to be measured are disposed on a side opposite to the part to be measured along the film.

Abstract: A cuff of a blood pressure measurement device compresses a measurement site by being wrapped therearound. A control unit evaluates the wrapping strength of the cuff, by comparing a detection amount detected based on the output of a sensor with a history of the detection amount stored in the storage unit.