Abstract: A biological information detection apparatus includes a detection unit which has a light receiving unit receiving light from a subject, a light transmitting member which is provided on a housing surface side in contact with the subject of the biological information detection apparatus, transmits light from the subject, and has a convex portion in contact with the subject to give a pressing force to the subject when measuring biological information of the subject, and a pressing force suppression unit which is disposed in periphery of the convex portion above the housing surface and suppresses the pressing force given to the subject by the convex portion.

Abstract: A portable biosignal measurement apparatus and the method is provided. The apparatus includes: a micro pump; a pressure supplier including a cuff which applies a pressure in a direction of a radial artery of a user's wrist by a fluid, which is flowed depending on pressure provided by the micro pump; and a sensor unit to measure a biosignal using displacement of the radial artery.

Abstract: A biological information detector including a light-emitting part for emitting a light directed at a detection site of a test subject, a light-receiving part for receiving a light having biological information, the light produced by the light emitted by the light-emitting part being reflected at the detection site, a reflecting part for reflecting the light emitted by the light-emitting part or the light having biological information, a protecting part, having a transparent surface in contact with the test subject, for protecting the light-emitting part or the light-receiving part, and a substrate held between the reflecting part and the protecting part, the light-emitting part being positioned on a side of the substrate towards one of either the reflecting part or the protecting part, and the light-receiving part being positioned on a side of the substrate towards another of either the reflecting part or the protecting part.

Abstract: A beat detection device includes: a pulse wave sensor adapted to detect and output a pulse wave signal; a body motion sensor adapted to detect and output a body motion signal due to a body motion of a human body; a pulse wave signal filtering section adapted to generate an adaptive filter based on the body motion signal to extract a noise signal in the pulse wave signal, and to output a beat signal obtained by eliminating the noise signal from the pulse wave signal; and a filter coefficient setting section adapted to set a coefficient of the adaptive filter to be a predetermined value in response to detection of increase in a body motion change beyond a predetermined threshold value based on the body motion signal.

Abstract: A biological information detector includes a light-emitting part subjected to emit a first light directed at a detection site of a test subject and a second light directed in a direction other than a direction of the detection site, a first reflecting part subjected to reflect the second light and directing the second light towards the detection site, a light-receiving part subjected to receive light having biological information, where the light produced by the first light and the second light is reflected at the detection site, and a second reflecting part subjected to reflect the light having biological information from the detection site and directing the light having biological information towards the light-receiving part.

Abstract: A blood pressure measuring apparatus includes a sensing unit including a plurality of sensors sensing sphygmus waves at a measurement site, a selection unit selecting one sensor of the plurality of sensors based on the sphygmus waves sensed by the plurality of sensors, and a blood pressure estimation unit estimating blood pressure of the measurement site based on a sphygmus wave sensed by the selected sensor.

Abstract: A heart monitoring system for a patient includes an 802 protocol transmitter; an 802 protocol receiver adapted to communicate with the 802 transmitter, the 802 protocol transmitter and receiver forming a Doppler radar to detect heartbeat motion on a chest; and an analyzer connected to one of the transmitter and receiver. The analyzer calibrates a Doppler radar signal with an actual blood pressure during a training phase to develop a model. The analyzer is configured to use the model with the Doppler radar signal during an operational phase to estimate blood pressure.

Abstract: A living body information measuring apparatus can suppress the bulge of tendons due to the bending of a wrist or fingers, and has good contact intimacy with arteries, making it possible to make accurate measurements of living body information. A cuff is formed of: a compression fluid bag which is provided for detecting a pulse wave signal, and which can be expanded and contracted by being supplied with a fluid; and two auxiliary fluid bags which are provided on an outer side of the compression fluid bag, and which can be expanded and contracted by being supplied with the fluid. The auxiliary fluid bags have a two-layer structure, and are connected to the compression fluid bag via opening portions, while the auxiliary fluid bags are respectively divided from each other. The compression fluid bag compresses the tendons, the radial artery and the ulnar artery, while the auxiliary fluid bag and the auxiliary fluid bag compress the radial artery and the ulnar artery, respectively.

Abstract: An electronic sphygmomanometer determines whether a position of a measurement site falls within a proper range, and notifies whether the position of the measurement site falls within the proper range. When determination is made that a time in which the position of the measurement site falls within the proper range is not less than a predetermined time (for example, 2 seconds), measurement of a blood pressure is automatically started. When determination is made that a time in which the position of the measurement site is out of the proper range is not less than a predetermined time (for example, 5 seconds), the measurement of the blood pressure is started. Further, whether the position of the measurement site falls within the proper range is notified while correlated with the measurement result.

Abstract: A monitoring device with a pedometer is disclosed herein. The monitoring device preferably comprises an article, an optical sensor, an accelerometer and processor. The optical sensor preferably comprises a photodetector and a plurality of light emitting diodes. A sensor signal from the optical sensor is processed with a filtered accelerometer output signal from the accelerometer to generate a pedometer function.

Abstract: A pulse abnormality detecting device comprises a band attached to a wrist, a first sliding member with which the band is armored and which slides in the circumference direction of the band along the band, a second sliding member which is slidably provided on the first sliding member and which slides in the axis direction of the band, a pulse sensor which is provided on the second sliding member and which is provided in such a manner that the position of the sensor can be adjusted to the inner side or the side of the band, and a pulse abnormality detecting unit for detecting the abnormality of the pulse from the output data of the pulse sensor. The device can accurately detect the pulse of a user with high precision, adapting to a personal difference.

Abstract: A monitoring device for monitoring the vital signs of a user is disclosed herein. The monitoring device is preferably comprises an article, an optical sensor, an accelerometer and processor. The optical sensor preferably comprises a photodetector and a plurality of light emitting diodes. A sensor signal from the optical sensor is processed with a filtered accelerometer output signal from the accelerometer to create a filtered vital sign signal used to generate a real-time vital sign for a user.

Abstract: A method of deriving central aortic systolic pressure comprises (a) creating a set having a predetermined number of blood pressure measurements, the set representative of an arterial waveform; (b) determining an integer interval value; (c) averaging a series of consecutive blood pressure measurement readings in the set equal to the integer interval value commencing from the fth blood pressure measurement in the set; (d) storing the averaged value in a central aortic systolic pressure set; and (e) setting the central aortic systolic pressure as the highest value in the central aortic pressure set. Steps (c) and (d) are repeated with the value of f being incremented by 1 each time until the value of f plus the integer interval value equals the predetermined number of blood pressure measurements in the set.

Abstract: A monitoring device for monitoring the vital signs of a user is disclosed herein. The monitoring device is preferably comprises an article, an optical sensor, an accelerometer and processor. The optical sensor preferably comprises a photodetector and a plurality of light emitting diodes. A sensor signal from the optical sensor is processed with a filtered accelerometer output signal from the accelerometer to create a filtered vital sign signal used to generate a real-time vital sign for a user.

Abstract: A monitoring device with a pedometer is disclosed herein. The monitoring device preferably comprises an article, an optical sensor, an accelerometer and processor. The optical sensor preferably comprises a photodetector and a plurality of light emitting diodes. A sensor signal from the optical sensor is processed with a filtered accelerometer output signal from the accelerometer to generate a pedometer function.

Abstract: Disclosed herein is a system for diagnosing a deficient pulse and an forceful pulse. The system includes a pulse diagnotic device, a deficient pulse and forceful pulse determining device, and an output device. The pulse diagnotic device measures pulse condition information at an examinee's Cun (˜\f˜) Gu (H), and Chi (,R) pulse-taking locations on his or her wrist using one or more pulse-taking sensors. The deficient pulse and forceful pulse determining device is operably connected to the pulse diagnotic device, analyzes the pulse pressure information measured by the pulse diagnotic device, calculates a quantified deficiency/forceful coefficient, and determines whether a pulse of interest is a deficient pulse or an forceful pulse. The output device is connected to the determining device and displays results of the determination.

Abstract: A biosignal measurement apparatus including: a bracelet membrane to wear around a user's wrist; a fixing supporter to install in a first side portion of the bracelet membrane and to support a first side portion of the wrist; a moving supporter to install in a second side portion of the bracelet membrane, to move towards the fixing supporter, and closely to attach to a second side portion of the wrist; and an information control unit to calculate a distance between the first side portion of the wrist and the second side portion of the wrist by detecting a movement distance of the moving supporter, and to calculate a displacement of the radial artery of the wrist by using a predetermined constant and the calculated distance between the first side portion of the wrist and the second side portion of the wrist.

Abstract: A method and wristop (wrist worn) device for monitoring physical exercise. The wristop device includes a central unit, in which there is a display face and to which a wristband is, or can be attached, sensor means for collecting a hemodynamic signal from the wrist, and a data-processing unit functionally connected to the sensor means, for deriving at least one physiological parameter from the hemodynamic signal. The data-processing unit of the wristop device is arranged to derive from the hemodynamic signal at least one physiological parameter depicting respiration, and further, on the basis of this, to calculate at least one training-effect parameter depending on the person and the exercise. In addition, the device makes it possible to eliminate the use of pulse bands in monitoring the training effect of exercise.

Abstract: An exemplary embodiment of a wireless monitoring device includes a sensitive patch with a sensor for sensing a body part and generating a signal. A wireless transmitter includes a first connection portion coupling to the sensitive patch for transmitting the signal. A mounting belt device is affixed to the wireless transmitter and securable in a closed loop configuration for coupling the wireless transmitter to an object. A wireless receiver is adapted for receiving the signal. The wireless receiver includes a display surface for displaying a value corresponding the signal and a supporting surface with a second connection portion. The wireless receiver and the wireless transmitter are detachably combined by coupling the first connection portion and the second connection portion, thereby keeping the wireless receiver and the wireless transmitter in an upright position.

Abstract: A multiple-axis accelerometer for use with a blood pressure monitor or a blood pressure measuring device (BPM) to determine an inclination associated with the point of fixture. The accelerometer is attached to a substrate that is structured and arranged in a vertical or substantially vertical plane. The accelerometer includes a first accelerometer portion that is adapted to generate a first output based on acceleration in a first direction in the vertical plane (Ax); and a second accelerometer portion that is adapted to generate a second output based on acceleration in a second direction, orthogonal to the first direction, in the vertical plane (Ay). The first and second outputs provide a measure of the inclination about an axis that is orthogonal or substantially orthogonal to the vertical plane. The measured inclination is a roll angle (?) is given by the formula: ?=arctan(Ay/Ax).

Abstract: A monitoring device for monitoring the vital signs of a user is disclosed herein. The monitoring device is preferably comprises an article, an optical sensor, an accelerometer and processor. The optical sensor preferably comprises a photodetector and a plurality of light emitting diodes. A sensor signal from the optical sensor is processed with a filtered accelerometer output signal from the accelerometer to create a filtered vital sign signal used to generate a real-time vital sign for a user.

Abstract: An organism information detecting apparatus includes a detector that detects organism information of a subject for a predetermined sampling time period, determines a motion state of the subject when the organism information is detected, and outputs an organism signal. A first calculator processes the organism signal to calculate organism information data, the detector determining a reliability degree of the organism information data based on whether the determined motion state of the subject is a previously determined motion state. A second calculator calculates an average value of the amount of variation per time of data obtained by digitizing the organism signal, the average value being data supplementary to the organism information data. The detector determines the motion state of the subject based on whether the supplementary data exceeds a previously determined threshold.

Abstract: A monitoring device for monitoring the vital signs of a user is disclosed herein. The monitoring device is preferably comprises an article, an optical sensor, an accelerometer and processor. The optical sensor preferably comprises a photodetector and a plurality of light emitting diodes. A sensor signal from the optical sensor is processed with a filtered accelerometer output signal from the accelerometer to create a filtered vital sign signal used to generate a real-time vital sign for a user.

Abstract: The invention relates to a method, device, and computer program product for monitoring the physiological state of a person. In the method, the heartbeat of the person is detected in order to obtain a pulse signal, and at least one parameter depicting the respiration of the person is determined in the time domain with the aid of time stamps made of the basis of the pulse signal. With the aid of the method, it is possible to calculate an estimate of the person's energy consumption during exercise, without complicated calculations or preliminary data based on measurements.

Abstract: A wireless mobile phone is equipped to operate in an unauthenticated and an authenticated mode of operation, depending on whether a user has been authenticated. In one embodiment, the wireless mobile phone includes a number of sensors to enable a user's heart beat profile to be captured and be used for authentication. In one embodiment, authentication is performed by comparing the real time captured heart beat profile against a reference heart beat profile. In one embodiment, the reference heart profile is retrieved from an identity card. The wireless mobile phone further includes a reader to retrieve the reference heart beat profile from the identity card.

Abstract: The invention concerns a conditioning circuit (10) for an external signal (IN) representative of a physiological quantity, arranged between an optical sensor (11) and a processing unit (12), the received external signal (IN) being broken down into a useful component and an ambient component, characterized in that the conditioning circuit includes a first stage (13) including a transimpedance amplifier with an incorporated high pass filter (15) using a feedback loop to subtract the ambient signal component from the received external signal, and to deliver at output an amplified useful signal (IN1), a second stage (16) including a blocker sampler circuit (17) for demodulating the amplified useful signal and delivering at output a demodulated useful signal (IN2), and a third stage (18) including a bandpass filter (19) for filtering the demodulated useful signal in the frequency band of the physiological quantity to be detected and for transmitting a conditioned signal (OUT) to the processing unit.

Abstract: The invention is directed to a method and a device for determining the blood pressure, in which a pressure sensor is applied to an individual's limb to detect the blood pressure prevailing in said limb. According to the present invention, the orientation of the limb is detected by means of an orientation sensing unit, and the detected blood pressure is corrected in an evaluating unit in response to the limb's detected orientation.

Abstract: The present invention relates to a noninvasive medical pulsimeter sensor using magnetic thin films. By forming a pulse-sensing part array with magnetic sensors such as GMR devices, MTJ devices and the likes, over the skin-contacting part which consists of a magnetic material, the present invention increases the integrity of sensors, minimizes the time for searching the pulse and it is applicable widely to portable pulsimeters and the likes.

Abstract: The invention relates to a method, device, and computer program product for monitoring the physiological state of a person. In the method, the heartbeat of the person is detected in order to obtain a pulse signal, and at least one parameter depicting the respiration of the person is determined in the time domain with the aid of time stamps made of the basis of the pulse signal. With the aid of the method, it is possible to calculate an estimate of the person's energy consumption during exercise, without complicated calculations or preliminary data based on measurements.

Abstract: The present invention relates to a sensor comprising a material which generates an electrical signal in response to elongation. More particularly, the present invention is directed to an apparatus for measuring a length or volume change, which comprises a sensor comprising a piezoelectric material which generates an electrical signal in response to elongation.

Abstract: A wearable pulse rate and rhythm monitoring device that monitors a person's pulse for variables such as pulse rate, pulse rhythm, pulse amplitude and blood pressure versus time when a person is exposed to one or more potential allergens. The person will select a potential allergen, such as corn, from a list stored in the device when the person will be exposed to that particular potential allergen. Selecting a potential allergen will start the device to monitor the pulse for gathering the data and storing the data in the memory for a pre-selected period of time. The stored data is then downloaded into a program that will plot the pulse rate versus real time so that an allergen can be identified. By monitoring the various changes to a person's pulse versus real time instead of taking an average, even slight allergens can be identified.

Abstract: Methods, systems and devices are provided for monitoring respiratory disorders based on monitored factors of a photoplethysmography (PPG) signal that is representative of peripheral blood volume. The monitored factors can be respiratory effort as well as respiratory rate and/or blood oxygen saturation level. The systems and devices may or may not be implanted in a patient.

Abstract: A physiological measurement display comprises: a strip having: at least one conductive portion at an inner side thereof; an electronic device connected to the conductive portion; the electronic device having at least one physiological measure unit; and a display panel at an outer side of the electronic device for displaying physiological data from the physiological measure unit. The electronic device is installed with a level meter, or alarm lights or a speaker. The display panel is pivotally installed to the electronic device and is turnable for viewing. Two ends of the electronic device have buckling grooves and two ends of the strip have buckles engageable to the buckling grooves. The buckles and buckling grooves are conductive. The electronic device is installed with an auxiliary conductive portion or a conductive rubber.

Abstract: A monitoring device (20) and method (200) for monitoring the health of a user is disclosed herein. The monitoring device (20) preferably includes eyewear (25) with an optical sensor (30), a digital storage and processing device (35) with a display member (40) and a control component (43), and a connection cable (45). The monitoring device (20) preferably displays the following information about the user: pulse rate; calories expended by the user of a pre-set time period; target zones of activity; time; and distance traveled.

Abstract: A convenient, inexpensive wrist blood pressure gauge whereby a cuff can easily be adjusted to the height of the heart merely by adding a simple structure. A lenticular sheet (display body (14)) whose visible image varies according to an angle in relation to a sight line (S) of a measurement subject is provided to a wrist blood pressure gauge (1) worn on a wrist (Mt) of the measurement subject (M), wherein a specific image is visible to the eyes (Ma) of the measurement subject when the wrist is set at the correct height in relation to the heart (H), and a different image is visible to the eyes of the measurement subject when the wrist is not in an appropriate height range.

Abstract: A heart rate monitor with analog and digital input mechanisms is provided with electro static discharge (ESD) protection which protects electrical components within the monitor. The heart rate monitor input mechanisms may include externally exposed sensors comprised of a conducting material, such as metal. The sensors may include push buttons, a dial, and one or more sensors for retrieving a heart rate signal, such as a case back for the monitor device. Internal circuitry such as an integrated circuit (IC) performs operations to provide time, a heart rate, and other information through a display. The ESD protection prevents any voltage discharge accumulating on the externally exposed sensors from reaching the one or more ICs and interrupting or negatively affecting performance of the monitor.

Abstract: A monitoring device (20) for monitoring the vital signs of a user is disclosed herein. The monitoring device (20) is preferably an article (25) having an optical sensor (30) and a circuitry assembly (35). The optical sensor (30) preferably comprises a photodetector (130) and a plurality of light emitting diodes (135). The monitoring device (20) preferably provides for the display of the following information about the user: pulse rate; blood oxygenation levels; calories expended by the user of a pre-set time period; target zones of activity; time; or distance traveled.

Abstract: A watch or other type of portable electronic console that employs a number of different functions in order to improve its usability. The watch may, for example, allow a user to connect the watch to one or more remote electronic devices, such as an electronic performance sensor or MP3 player. The watch then displays information related to the connected electronic devices. Still further, the watch may allow a user to control the operation of one or more connected remote electronic devices. Thus, if the watch is connected to a remote speed/distance monitor employing a calibration variable, then the watch may allow the user to adjust the calibration variable. The watch also provides a multi-tiered menu for accessing its various functions. Each operational mode in the first tier relates to a broad category of different functions of the watch, and contains one or more operational submodes in a second tier.

Abstract: A navigation-assisted fitness device broadly comprising a location determining component, a fitness monitoring component and a display. The location determining component determines location data for a user of the device as the user exercises. The fitness monitoring component is coupled with the location determining component and calculates fitness information for the user as the user exercises. The display displays the fitness information and other information and data.

Abstract: The invention provides a method for monitoring a patient, comprising the following steps: 1) outfitting the patient with a ambulatory blood pressure monitor that features an optical system for measuring blood pressure without using a cuff, and a wireless system configured to send and receive information sent from an Internet-based system through a wireless network; 2) sending from the Internet-based system to the ambulatory blood pressure monitor a signal that indicates a blood pressure level; 3) comparing a blood pressure value measured with the ambulatory blood pressure monitor to the blood pressure level; and 4) generating a signal in response to the comparing step.

Abstract: A monitoring device (20) for monitoring the vital signs of a user is disclosed herein. The monitoring device (20) is preferably an article (25) having an optical sensor (30) and a circuitry assembly (35). The monitoring device (20) preferably provides for the display of the following information about the user: pulse rate; blood oxygenation levels; calories expended by the user of a pre-set time period; target zones of activity; time; distance traveled; and/or dynamic blood pressure. The article (25) is preferably a band worn on a user's wrist, arm or ankle.

Abstract: A monitoring device (20) for monitoring the vital signs of a user is disclosed herein. The monitoring device (20) is preferably an article (25) having an optical sensor (30) and a circuitry assembly (35). The optical sensor (30) preferably comprises a photodetector (130) and a plurality of light emitting diodes (135). The monitoring device (20) preferably provides for the display of the following information about the user: pulse rate; blood oxygenation levels; calories expended by the user of a pre-set time period; target zones of activity; time; distance traveled; and/or dynamic blood pressure.

Abstract: The present invention specifies a method and system for assessing breathing effectiveness via dynamic assessment of respiratory sinus arrhythmia and the consequent arterial pressure wave using the oscillometric measurement technique. Arterial pressure wave peak pressure, valley pressure, amplitude, and rate are characterized and displayed for diagnostic and remedial purposes. The dynamic change in respiratory sinus arrhythmia and resultant arterial pressure wave is visually presented in real time as user biofeedback. A respiratory sinus arrhythmia generator generates varying frequencies to which the user synchronizes their breathing cycle for purposes of increasing arterial pressure wave amplitude with a consequent increase in breathing depth and decrease in breathing frequency. An instructive method in the application of the present invention is also specified.

Abstract: The invention proposes a pulsometer (10) comprising a case (14) which contains an electronic optical pulse measuring device (18) and an electronic circuit, a tightening wristband (16) which holds the back cover of the case (14) pressed against the wrist (12), characterized in that the electronic optical measuring device (18) includes at least two light sources (E1, E2, E3) and at least two receivers (R1, R2, R3), in that the light sources (E1, E2, E3) and the receivers (R1, R2, R3) are arranged in the form of a matrix comprising two lines (L1, L2) each oriented along an orthogonal direction to the direction (D1) of the wrist (12), and at least two columns (C1, C2, C3), oriented parallel to the direction (D1) of the wrist (12), in that each line (L1, L2) of the matrix alternately contains a light source (E1, E2, E3) and a receiver (R1, R2, R3), and each column (C1, C2, C3) of the matrix contains a light source (E1, E2, E3) and a receiver (R1, R2, R3).

Abstract: A wrist-worn apparatus capable of sensing pulsation of blood in the blood tubes of a user's wrist with high accuracy. The apparatus comprises a body of the apparatus, a band to be used to wear the body of the apparatus on the user's wrist, and a fluid-containing pulsation-sensing fluid chamber provided on the user's wrist side of the case. A part of an outer wall that defines the fluid chamber comprises an elastically deformable member that is elastically deformed depending on pulsation of blood transmitted from the band to thereby change the fluid pressure within the fluid chamber. A deformation preventing member is bonded by vulcanization to a part of a side of the deformable member that will come into contact with the user's wrist for preventing the part of the deformable member from being elastically deformed.

Abstract: A manometer with an indication label comprises a manometer body; a tying stripe; a tying stripe; and an indication label for indicating a position for measuring blood pressures or blood pulse; the indication label being installed at a predetermined position of the manometer body. A length of the indication label is 1.5 centimeter or ? inches. The indication label is indicated with a distance of 1.5 centimeter ? inches from a wrist of a user. The indication label is installed on the tying stripe. The indication label is made of soft cloth or plastics.

Abstract: The wearable heartbeat measuring device is accomplished by wearing a wrist-watch-like heart monitor device on the wrist. The heart monitor is worn on the top of the wrist with a strap around the wrist. The strap has an inflexible extending portion that extends from the heart monitor at a predetermined angle and a predetermined width with respect to the wrist so that a predetermined space is maintained between the top portion of the wrist and the strap for promoting the transfer efficiency of the pulsation force that is initially experienced at a part of the strap at the bottom of the wrist. The strap also has a flexible portion. A predetermined angle and a predetermined width of the extended portion also facilitate the flexible portion to form a flat area where the wrist contacts the strap. In the prefer embodiments, the width of the strap exceeds the width of the wrist when it is worn.

Abstract: An exercise expenditure monitor device and method for monitoring a user's caloric expenditure at exercise, the exercise expenditure monitor device including a heartbeat sensing device for detecting heart rate of the user, a reference storage unit for storing a standard heart rate and a reference heart rate of the user at rest mode, an individual physiology database for storing data of physiology weighted value and a set of individual physiological parameters inputted by the user including sex, age and weight, each set of individual physiological parameters corresponding to a physiology weighted value, a calculating unit which calculates a general caloric expenditure of the user according to an algorithm including dividing the heart rate difference between the exercise heart rate and the reference heart rate by the reference heart rate and multiplying by the physiology weighted value.

Abstract: The invention is directed to a method and a device for determining the blood pressure, in which a pressure sensor is applied to an individual's limb to detect the blood pressure prevailing in said limb. According to the present invention, the orientation of the limb is detected by means of an orientation sensing unit, and the detected blood pressure is corrected in an evaluating unit in response to the limb's detected orientation.

Abstract: Provided is a pulse wave measuring apparatus preventing breakage of a pressure sensing surface in the non-measurement stage. The pulse wave measuring apparatus includes: a housing and a pressure sensing section, wherein an opening is formed at the bottom surface of the housing, the pressure sensing section is mounted inside of the housing, the pressure sensing section moves freely upwardly and downwardly through the opening between a measuring position at which a pressure sensing surface is pressed to a human body to measure a pulse wave and a waiting position at which the pressure sensing section 20 is accommodated inside of the housing to be on standby and the housing has a slide cover protecting the pressure sensing surface in a state where the pressure sensing section is located at the waiting position.