Colin Corporation

Colin Medical Technology Corporation

Hideichi Tsuda

Takashi Nomura

Toshihiko Ogura

Tohru Oka

Takashi Honda

Akira Yamashina

Yoshiaki Tsutsumi

An apparatus for determining a standard pulse-wave-propagation-velocity-related value for a living subject, comprising: a blood-pressure measuring device for measuring a blood pressure of the subject; an age determining device for determining an age of the subject; and a standard-pulse-wave-propagation-velocity-related-value determining device for determining the standard pulse-wave-propagation-velocity-related value for the subject, based on the blood pressure of the subject measured by the blood-pressure measuring device and the age of the subject determined by the age determining device, according to a predetermined relationship between (A) (a1) blood pressure and (a2) age and (B) standard pulse-wave-propagation-velocity-related value.

Standard pulse-wave-propagation-velocity-related-value determining apparatus and pulse-wave-propagation-velocity-related-value obtaining apparatus

An apparatus for measuring a superior-and-inferior-limb blood-pressure index of a living subject, including a first measuring device which measures a first blood pressure of an inferior limb; a second measuring device which measures a second blood pressure of a superior limb; an information obtaining device for iteratively obtaining information changing in relation with change of blood pressure of the subject; a change-value determining device for determining a change value of blood pressure of the subject between a first time when the first blood pressure is measured and a second time when the second blood pressure is measured, based on a first piece of information obtained by the information obtaining device at the first time and a second piece of information obtained by the information obtaining device at the second time; a corrected-blood-pressure determining device for determining, based on the determined change value, one of the first and second blood pressures to a corrected blood pressure that would have been measured at one of the first and second times that corresponds to the other of the first and second blood pressures; and an index determining device for determining the superior-and-inferior-limb blood-pressure index, based on the determined corrected blood pressure and the other of the first and second blood pressures that has not been corrected by the corrected-blood-pressure determining device.

Superior-and-inferior-limb blood-pressure index measuring apparatus

An apparatus for monitoring an anesthetic depth of a living subject, including at least two devices of (a) an arousal-index determining device which determines an arousal index indicating a degree of arousal of the subject, (b) a pain-index determining device which determines a pain index indicating a degree of pain of the subject, and (c) a muscular-relaxation-index determining device which determines a muscular-relaxation index indicating a degree of muscular relaxation of the subject, and an anesthetic-depth determining device for determining, based on at least two indexes determined by the at least two devices, an anesthetic depth of the subject according to a predetermined relationship between anesthetic depth and the at least two indexes.

Anesthetic-depth monitor apparatus

An apparatus for evaluating an exercise function of a person who undergoes an exercise load, including a pulse-rate measuring device which successively measures a pulse rate of the person in synchronism with a heartbeat of the person, a blood-pressure measuring device which successively and non-invasively measures a blood pressure of the person in synchronism with the heartbeat of the person, a first calculating device which successively calculates a product of the pulse rate and the blood pressure in synchronism with the heartbeat of the person, a second calculating device which calculates a total energy produced by the person after application of the exercise load to the person is started and before the products successively calculated by the first calculating device increase up to a target value, and a display device which displays an evaluation value of the exercise function of the person based on the total energy calculated by the second calculating device.

Apparatus for evaluating exercise function of person

From a fluctuation of pulse periods of a subject continuously measured by a pulse period measuring device, a first pulse period fluctuation signal HFC.sub.RR which corresponds to a first pulse period fluctuation component produced in substantial synchronism with a respiration of the subject and a second pulse period fluctuation signal LFC.sub.RR which corresponds to a second pulse period fluctuation component having a predetermined frequency lower than a frequency of the first pulse period fluctuation component are extracted by a pulse period fluctuation signal extracting means. Then, based on a ratio (HFC.sub.RR /LFC.sub.RR) of the first pulse period fluctuation signal HFC.sub.RR to the second pulse period fluctuation signal LFC.sub.RR, an anesthetic depth of the subject is calculated by an anesthetic depth calculating means. Thus, the present apparatus can objectively or quantitatively calculate the anesthetic depth of the subject. Additionally, the apparatus can accurately measure the anesthetic depth of the subject without needing operator's skill or the like.

Anesthetic depth measuring apparatus

An apparatus for evaluating a blood-ejecting function of a heart of a living subject, including a pressure pulse wave sensor which is adapted to be worn on a body portion of the subject to detect a pressure pulse wave which is produced from an artery of the subject in synchronism with a heartbeat of the subject, a first determining device for determining a first value of an index corresponding to a systolic area which is defined by a waveform of a first heartbeat-synchronous pulse of the pressure pulse wave detected by the pressure pulse wave sensor before the subject undergoes a physical exercise, a second determining device for determining a second value of the index corresponding to a systolic area which is defined by a waveform of a second heartbeat-synchronous pulse of the pressure pulse wave detected by the pressure pulse wave sensor after the subject undergoes the physical exercise, and an evaluating device for evaluating the blood-ejecting function of the heart of the subject, based on the determined first and second values of the index.

Apparatus for evaluating cardiac function of living subject

An exercise apparatus including an exercise-load applying device which applies an exercise load to a person such as a patient, an exercise-load changing device which changes the exercise load applied to the person by the exercise-load applying device, a pulse-rate measuring device which successively measures a pulse rate of the person in synchronism with a heartbeat of the person, a blood-pressure measuring device which successively and non-invasively measures a blood pressure of the person in synchronism with the heartbeat of the person, a calculating device which successively calculates a product of the pulse rate and the blood pressure in synchronism with the heartbeat of the person, and a control device which controls the exercise-load changing device to change the exercise load applied to the person by the exercise-load applying device, so that the products successively calculated by the calculating device substantially coincide with a predetermined target value.

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Komaki, Japan

Hideichi Tsuda