Abstract: A method for determining status of an implanted catheter includes acquiring raw pressure data from a pressure sensor of in an implantable infusion device. The pressure sensor is in communication with a lumen of the catheter operably coupled to the infusion device. The catheter has a delivery region, in communication with the lumen, intended to be positioned in a fluid-filled target location of a patient. The method further includes filtering the raw pressure data to remove the DC component, leaving the AC component within a relevant physiological frequency range; rectifying the AC component to produce a rectified pressure signal; calculating a mean magnitude of the rectified signal; and determining whether the mean magnitude is below a predetermined threshold. If the mean magnitude is below the threshold, the catheter is determined to be in a state other than a normal state.

Abstract: A control amplitude and a control frequency of a voltage applied to a piezoelectric pump are determined, control is carried out so that a voltage at the determined control amplitude and control frequency is applied to the piezoelectric pump, and a blood pressure value is calculated based on a cuff pressure detected by a pressure detection unit during inflation when the cuff pressure is increased by the piezoelectric pump. The amplitude of the voltage is controlled in predetermined steps, and a voltage having an amplitude that is a value above the control amplitude by at least one step and a voltage having an amplitude that is a value below the control amplitude by at least one step are applied, in a predetermined order, so that the control is the same or essentially the same as when a voltage at the determined control amplitude is applied.

Abstract: Blood pressure measuring device with a flexible pressure collar, to surround a body part at least partially, with a pressure sensor element, wherein the shape of the pressure collar can be adapted to the outer contour of the body part, the pressure collar being at least partially inelastic. Further, the flexible pressure collar for a blood pressure measuring device to the relates pressure collar being inelastic and the shape being adapted to the outer contour of a body part. A method for non-invasive blood pressure measurement on a patient's body part with a blood pressure measuring device includes: positioning the pressure collar on the body part; setting the pressure collar such that it exerts pressure in the pulsatile region of the patient on the body part; and recording the pulsation for the period of at least one breathing cycle of the patient in the form of pulsation signals.

Abstract: A blood pressure meter includes an air bladder for attachment to a measurement area, a pressure sensor, a pump a valve, drive circuits, a CPU connected to the pressure sensor and the drive circuits, for controlling the adjustment of the internal pressure of the air bladder and calculating a blood pressure value based on a change in the internal pressure resulting from the adjustment, and a holding portion, into and from which air can flow from and to the air bladder, that has a lower volume than the air bladder. The air can flow from the holding portion into the air bladder in the case where a predetermined pressure is applied to the holding portion. The CPU starts the adjustment of the internal pressure in the case where a change in the internal pressure prior to the start of the adjustment of the internal pressure is a predefined change.

Abstract: Blood pressure measurement devices comprising a transducer may have error introduced when the transducer is placed in mechanical communication with a vein or artery. This error may be based on alignment, applanation, calibration, and the contact based stress required to obtain a signal from pressure in a vein or artery. The present invention teaches isolating and removing this error from the blood pressure system which may increase the accuracy of the measurement. Calibration is also provided.

Abstract: An electronic blood pressure meter includes a cuff that is to be worn on a measurement area, a piezoelectric pump that adjusts a pressure applied to the cuff, a drive circuit that drives the piezoelectric pump, and a controller that outputs, to the drive circuit, a pulse signal defining a driving timing of the piezoelectric pump. The drive circuit includes a switching circuit for switching a connection relationship between respective voltages applied to both ends of the piezoelectric pump in response to corresponding first and second driving signals, and a signal generation circuit that outputs the first and second driving signals based on the pulse signal outputted from the controller. The signal generation circuit has a signal conditioning circuit hat adjusts timings of the first and second driving signals so that the phases of the first and second driving signals do not overlap.

Abstract: A blood pressure measurement device corrects the error caused by blood congestion. The device includes a blood pressure measurement section that calculates a blood pressure value of a patient based on the cuff pressure and pulse waves detected by a pressure sensor, a blood congestion determination section that determines a degree of blood congestion that occurred at a peripheral side of the measurement location due to the cuff pressure on the measurement location in accordance with a predetermined method, a blood pressure correction section that calculates a corrected blood pressure value based on the degree of the blood congestion, and a display that displays the corrected blood pressure value.

Abstract: Improved apparatus and methods for non-invasively assessing one or more hemodynamic parameters associated with the circulatory system of a living organism. In one aspect, the invention comprises an apparatus adapted to automatically and accurately place and maintain a sensor (e.g., tonometric pressure sensor) with respect to the anatomy of the subject. The apparatus comprised of a sensor device removably coupled to an actuator which is used to position the sensor during measurements. Methods for positioning the alignment apparatus and sensor, and operating the apparatus, are also disclosed.

Abstract: The circulatory dynamics measurement apparatus comprises: a blood pressure-computing unit, which calculates the maximum blood pressure value (SYS); a vascular sclerosis-computing unit, which calculates the vascular sclerosis index (VSI); and a display unit for displaying a graph having a horizontal axis that represents the maximum blood pressure and a vertical axis that represents the vascular sclerosis index. The display unit displays the position determined by the calculated maximum blood pressure value and the calculated vascular sclerosis index in the plotting area of the graph.

Abstract: A medical blood pressure transducer that provides an identifier to a monitor that conveys characteristics of the transducer. The monitor can use the information to decide whether to function, or in calibration of the system. The transducer may be part of a disposable blood pressure monitoring system, and may include two transducers closely-spaced to provide two separate but identical outputs. In this way, the transducer may be connected to both a patient monitor and a cardiac output monitor at the same time measurements from a single line can be simultaneously supplied to two separate monitoring devices (for example a patient monitor and a cardiac output monitor). The identifier for the transducer may be circuitry, specifically a resistance/capacitance (RC) combination that possesses a characteristic time constant.

Abstract: Disclosed is a method for implementation by one or more data processors including acquiring noninvasive blood pressure data using an inflatable cuff applied around a portion of a patient by inflating the cuff to a pressure above the patient's systolic blood pressure, and detecting a first oscillation pulse within the cuff during a deflation step. The method also includes acquiring electrocardiogram (ECG) data from the patient by detecting an ECG waveform corresponding to a first heartbeat using an ECG lead coupled to the patient, classifying the ECG waveform as normal or not normal, aligning, the first oscillation pulse to the ECG waveform corresponding to the first heartbeat if the ECG waveform is classified normal or rejecting the first oscillation pulse if the ECG waveform is classified not normal, and calculating the blood pressure using the aligned first oscillation pulse. Related apparatus, systems, methods and/or articles are described.

Abstract: The invention provides a device 10 for analysis of tissue cells 12 in a living body, the device comprising a stylet 14, the stylet comprising a clad optical fiber senior 18 enveloped in a tubular jacket 20, wherein an unclad area 24 of the fiber and a jacket window 26 corresponding to the unclad area are proximate to the distal end 28 thereof, the optical fiber 18 being linked at a proximate end 30 to receive light from a light source 32, the device further including a light analyzer 34 for measuring qualities of output light at the depth at which the unclad area 24 is positioned in the body during use, an electronic data processor 36 being linked between the light analyzer 34 and a display 38 provided to show real-time data regarding any area 40 evidencing a change in optical properties of body tissues being successively examined.

Abstract: A device may include a vibration sensor configured to sense blood flow in a lumen of a person; a cuff coupled to the vibration sensor and configured to contact a limb of the person; a cuff pressurizer coupled to the cuff, the cuff pressurizer configured to adjust a compressive force of the cuff on the lumen; and an energy-generating apparatus coupled to the cuff, the energy-generating apparatus configured to generate energy from a depressurization of the cuff.

Abstract: The systems and methods monitor a subject's blood pressure under a constant applied pressure. Measurements taken from a pressure measuring element and a pulse sensing element are combined to determine the subject's systolic and diastolic pressure. The systolic pressure is measured directly by the pressure measuring element, and the diastolic pressure is determined indirectly by using a pulse waveform to extrapolate portions of a pressure waveform. The systems and methods can be employed in any number of applications, including, without limitation, taking a single reading from a subject, continuously monitoring a subject, or evaluating a subject during physical exertion.

Abstract: A manual pressurization electronic sphygmomanometer includes a specific component detection unit for detecting a synthetic wave of a manual fluctuation wave and a pressure pulse wave as a specific component from a cuff pressure signal obtained during pressurization; a derivation processing unit for deriving a pressurization target value based on the detection result of the specific component detection unit; and a display unit for notifying to urge pressurization up to the pressurization target value. The derivation processing unit calculates a pulse wave component based on the waveform before and after the specific component and the waveform of the specific component, and determines a value obtained by adding a predetermined value to the systolic blood pressure value estimated based on the amplitude of the pulse wave component as the pressurization target value.

Abstract: A system and method for processing oscillometric data from a plurality of pressure steps to determine the blood pressure of a patient. A heart rate monitor connected to the patient acquires the patient's heart rate. A time-to-frequency domain converter receives oscillometric data and converts the oscillometric data into the frequency domain. Based upon the calculated heart rate, the system and method filters the frequency domain oscillometric signal with pass bands centered at the fundamental frequency and at least one fundamental frequency. The energy of the frequency domain signal within the pass bands is compared to at least a portion of the energy of the frequency domain oscillometric signal outside of the pass bands. Based upon the comparison, the signal determines whether the signal at the current pressure step should be utilized in calculating the blood pressure of the patient.

Abstract: Provided are a blood pressure measuring apparatus capable of effectively eliminating the influence which the volume change in an upstream portion of an occluding cuff has on a pulse wave detection cuff in an oscillometric double-cuff system, increasing the S/N ratio of systolic blood pressure detection, and accurately measuring the blood pressure with an inexpensive arrangement, a cuff, and a blood pressure measuring method. The apparatus includes a first pipe (106) connected to an occluding air bag (108) and sub air bag (109). The first pipe is connected to the sub air bag, and the sub air bag is connected to the occluding air bag via an entirely foldable rod shape member (111) capable of maintaining a hollow portion. The sub air bag is laid over the occluding air bag by folding a middle pipe.

Abstract: A sphygmomanometer measures blood pressure in accordance with an oscillation in an artery wall, resulting from an arterial pulse correspondent with a change in cuff pressure. It comprises a cuff that is connected to the sphygmomanometer main body by a tube, a display unit for displaying the results of blood pressure measurements, and an air supply unit for supplying air to, and thus pressurizing, the cuff, which is detachable from the sphygmomanometer main body. The air supply unit is screwed into the sphygmomanometer main body with a screw assembly, and the screwed-in state is preserved by a caulking ring. The air supply unit also comprises a filter for keeping dust from entering the sphygmomanometer main body.

Abstract: The invention is in one embodiment an apparatus and a method for measuring the blood pressure of a vertebrate subject. The apparatus uses an inflatable chamber with a sensor to detect signals indicative of a blood pressure of the subject during an inflation interval of the inflatable chamber. If secondary motion or artifact signals are detected, the apparatus and method determine whether the secondary signals are below a predetermined value, and if so, complete the measurement. If the signals indicate that the measurement is not accurate, the system and method immediately institute a measurement of the blood pressure during a deflation interval, which can include a step deflation interval. In the event that the subject is identified as a neonate, the system and method immediately measure using the deflation interval procedure.

Abstract: A pulse measurement device for more precisely measuring a pulse, including a sensing unit to sense a photoplethysmography (PPG) signal and an acceleration signal obtained from a user, a pressure control unit to control pressure applied to the sensing unit, and a signal determination unit to determine an optimum pressure range by analyzing the PPG signal varying with a change of the pressure applied to the sensing unit by the pressure control unit and to determine an exercise level of the user by using the acceleration signal.

Abstract: Embodiments of the present disclosure relate to a system and method for determining a physiologic parameter of a patient. Specifically, embodiments provided herein include methods and systems for non-invasive determination of blood pressure. Information from a photoplethysmography sensor may be used to determine a systolic pressure, which in turn may be used to control a deflation pattern of a blood pressure cuff.

Abstract: The disclosed is an arteriosclerosis evaluating apparatus capable of easily separating pulse wave data detected at one measurement site into an incident wave and a reflected wave and capable of easily determining and evaluating the degree of arteriosclerosis. The pulse wave transmitted through an artery is detected at one site of a living body by a pulse wave detection device, and the detected pulse wave is fitted with a fitting function by a breakdown device so that the detected pulse wave can be broken down into an incident wave and a reflected wave. The degree of arteriosclerosis is evaluated from the amplitude intensities (i.e., peak intensities) of the incident wave and the reflected wave broken down from the pulse wave.

Abstract: An electronic sphygmomanometer acquires a patient ID and recommended site information read from an ID card before measurement. The recommended site indicating the site to be attached to a cuff of a left site or a right site is thereby specified for every person to be measured (patient ID). Thereafter, the site to be attached to the cuff is guided by notifying the specified recommended site to the person to be measured.

Abstract: A method is provided for determining blood pressure for a subject using a sphygmomanometer. The method includes: measuring an oscillometric cuff pressure waveform of the subject using the sphygmomanometer; representing the measured waveform with a physical model accounting for mechanics of the cuff, an artery and coupling between the cuff and the artery; determining the model unknowns from the measured waveform; and determining blood pressure for the subject using the determined model.

Abstract: A pulse wave data correcting method in an electronic hemomanometer which is designed to time-differentiate signals each formed by superposing a pulse wave amplitude component on a cuff pressure, to compute an envelope consisting of the time-differentiated signals, to detect the maximal value in the computed envelope, to sort the time-differentiated signals generated prior to the maximal envelope value in ascending order, to sort the time-differentiated signals generated after the maximal envelope value in descending order, and to form an envelope consisting of the sorted time-differentiated signals.

Abstract: Improved apparatus and methods for non-invasively assessing one or more parameters associated with systems such as fluidic circulating systems (e.g., the circulatory system of a living organism). In a first aspect, an improved method of continuously measuring pressure from a compressible vessel is disclosed, wherein a substantially optimal level of compression for the vessel is achieved and maintained using dynamically applied dither perturbations (e.g., modulation) on the various axes associated with the vessel. In a second aspect, an improved apparatus and method are provided for monitoring hemodynamic parameters, such as blood pressure, in a continuous and non-invasive manner while operating under a single unifying scheme. One variant of this scheme using a simulated annealing (SA) type approach to determining and maintaining an optimal operating state.

Abstract: The invention discloses an apparatus and method for measuring a blood pressure. In particular, the method and apparatus according to the invention are capable of eliminating motion artifacts induced by, for example, talking, irregular breathing, frequent swallowing, coughing, shaking, and so on motions of a subject. The method and apparatus according to the invention utilizes a set of fuzzy logic rules and a curve-fitting way to eliminate the motion artifacts.

Abstract: A blood pressure measurement system is configured to perform a calibration automatically when a calibration condition is satisfied. The calibration condition is based upon one or more parameters of pulse waves of a subject. The parameters may include pulse wave area; a time difference between systolic peak and reflected wave peak or dichrotic notch in the pulse wave and a shape of at least a portion of the pulse wave.

Abstract: A device is sued for measuring arterial pressure. The device includes a body in the form of a wrist-watch, an element for fastening the latter on a user's wrist, said element being in the form of a wristband designed so that the clamping force of the wristband on the wrist can he adjusted. A pulsed wave sensor is arranged on the element for fastening the body on the user's wrist. The device includes an analog-digital converter, a filter for isolating the alternating component of a signal, and a measurement data indicator, a voice synthesizer and a pulsed wave sensor position indicator, which are integrated by their inputs.

Abstract: A blood pressure measurement apparatus includes a blood pressure measurement unit, a bio-information acquisition unit, a depth calculation unit, a storage unit and a decision unit. The bio-information acquisition unit continuously acquires bio-information of a subject. The depth calculation unit repeatedly calculates depth indices each indicating a sleep stage of the subject on the basis of the acquired bio-information. The storage unit stores the calculated depth indices. The decision unit decides whether the sleep stage of the subject in sleep satisfies a starting condition, on the basis of a first depth index stored in the storage unit and a second depth index calculated by the depth calculation unit. The blood pressure measurement unit measures blood pressure data of the subject when the sleep stage is decided to satisfy the starting condition.

Abstract: It is an object to provide a blood pressure monitor, wherein the noise caused by the friction of overlapping parts of a cuff can be inhibited during automatic elevation in the cuff pressure, and reliability in the automatic elevation of cuff pressure can be significantly enhanced. A cuff (1) is used in a blood pressure monitor to measure a blood pressure in a rolled condition where one end of the cuff (1) is wound within the other end thereof, wherein a cushion member (6) made of a raised fabric (61) is provided in at least one of surfaces at one end and the other end of the cuff (1) which rub against each other.

Abstract: A CPU acquires factor information for a degree of arteriosclerosis, stores a plurality of pseudo blood flow waveforms, generates a waveform estimated as a blood flow waveform by compositing the plurality of pseudo blood flow waveforms based on the factor information, decomposes a pulse waveform into waveforms of an ejected wave and a reflected wave using the pulse waveform and the waveform estimated as the blood flow waveform, and calculates an index of the degree of arteriosclerosis from a relationship between the ejected wave and the reflected wave obtained by decomposing the pulse waveform.

Abstract: In device for side impact recognition in a vehicle, at least one pressure sensor system that produces a signal is provided in a side part of the vehicle, and an evaluation circuit is provided that recognizes a side impact as a function of the signal. In addition, a test device is provided for the at least one pressure sensor system, the at least one test device being configured such that the at least one test device oversamples the signal and then filters it in order to produce a test signal, the test device comparing the signal with a reference value and, as a function of this comparison, recognizing the operability of the at least one pressure sensor system.

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: 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.

Abstract: The objective of the present invention is to provide a sphygmomanometer that is easy to use. The sphygmomanometer according to the present invention measures blood pressure in accordance with an oscillation in an artery wall, resulting from an arterial pulse correspondent with a change in cuff pressure. It comprises a cuff that is connected to the sphygmomanometer main body by a tube, a display unit for displaying the results of blood pressure measurements, and an air supply unit for supplying air to, and thus pressurizing, the cuff, which is detachable from the sphygmomanometer main body. The air supply unit is screwed into the sphygmomanometer main body with a screw assembly, and the screwed-in state is preserved by a caulking ring. The air supply unit also comprises a filter for keeping dust from entering the sphygmomanometer main body.

Abstract: A method for estimating blood pressure includes sensing a sphygmus wave at a body part of a user to which vibration is applied to generate a sensed sphygmus wave, filtering the sensed sphygmus wave to generated a filtered sphygmus wave, and estimating blood pressure of the user based on time differences between peaks of the sensed sphygmus wave and peaks of the filtered sphygmus wave.

Abstract: An ABPI measurement system includes two cuffs for each ankle and two cuffs for each arm of a patient. Each cuff has chambers. The four cuffs are applied to each limb (or finger or toe), each chamber is inflated simultaneously to a pressure until a Pneumo Arterial Plethysmography (PAPG) signal related to the arterial flow in the limb is detected at the chambers. The chambers are then simultaneously inflated until the PAPG signals are extinguished in each limb, the inflation of chambers continuing for 10 mmHg to 20 mmHg above that pressure. The chambers are then deflated and the pressure at which the PAPG signal returns in the first chamber is recorded for each limb and this value of the pressure is used to calculate the ABPI. The ABPI is displayed or sent to a remote site.

Abstract: A sphygmomanometer (1) stores a parameter for calculating a blood pressure value from a measurement value with clothes on from a measurement value with clothes off at a measurement site and the measurement value with clothes on in advance. When a with-clothes mode is selected with a button (3-4) in measuring the blood pressure, the blood pressure value is calculated using the parameter stored with respect to the measurement value.

Abstract: A method that extends the oscillometric method, which currently is used for blood pressure measurement at one point in time, to provide continuous measurement of blood pressure (BP). The method provides a BP signal that is similar to an invasive arterial line continuous BP measurement with minimal changes in clinical procedures. The apparatus for performing the method includes a sensor with a fluid-filled, disposable, flexible bladder underneath a non-invasive inflatable cuff monitor. The inflatable cuff monitor provides a single-point BP value in a traditional manner. An electronic scaling adapter estimates the diastolic pressure and systolic pressure corresponding to the BP signal obtained from the fluid-filled bladder, uses the single-point BP value from the inflatable cuff monitor to scale the BP signal detected by the bladder, and outputs a scaled BP signal that can be displayed from a conventional vital signs monitor.

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.

Abstract: Every pulse wave, a constant volume control unit performs servo control while updating a servo gain such that a difference between an arterial volume shown by an arterial volume signal that is detected by an arterial volume detection circuit and a control target value of the servo control is less than a control deviation at which a rate of change of the arterial volume relative to a change in cuff pressure is deemed to be constant. Because the control deviation is the difference between the arterial volume shown by the arterial volume signal and the control target value, a blood pressure decision unit decides, as a blood pressure, the cuff pressure sequentially detected in a period during which servo control is performed, by correcting the cuff pressure using the control deviation and the rate of change deemed to be constant.

Abstract: A blood pressure information measurement device includes a main body, including an inflation pump and an exhaust valve, and a cuff, including an air bladder for pulse wave measurement and an air bladder for blood pressure value measurement. The air bladder for pulse wave measurement and the air bladder for blood pressure value measurement are wrapped around a proximal side and a distal side of the upper arm, respectively. A first piping portion connects the air bladder for blood pressure value measurement to the inflation pump and the exhaust valve. A second piping portion branching from the first piping portion connects the air bladder for pulse wave measurement to the first piping portion. The second piping portion includes a 2-port valve that switches between connecting and disconnecting the air bladder for pulse wave measurement and the first piping portion, and a pressure sensor for measuring a pulse wave.

Abstract: This invention relates to a personal feature diagnostic apparatus on the basis of an oscillometric arterial pressure measurement comprising a pressure detection sensor unit for detecting a cuff pressure including an effect of pulse wave; a pulse wave extraction unit for extracting pulse wave signals of the artery from the cuff pressure detected in the pressure detection sensor unit; a pulse wave amplitude detection unit for dividing pulse wave signals extracted from the pulse wave extraction unit into a plurality of window sections and detecting a minimum amplitude pulse in each window section; and a personal feature diagnostic unit for diagnosing personal feature by using the minimum amplitude pulse in each window section detected by the pulse wave amplitude detection unit.

Abstract: The present invention relates to a device and a method for estimating central systolic blood pressure based on oscillometric signals from brachial artery by the use of a pressure cuff.

Abstract: The systems and methods monitor a subject's blood pressure under a constant applied pressure. Measurements taken from a pressure measuring element and a pulse sensing element are combined to determine the subject's systolic and diastolic pressure. The systolic pressure is measured directly by the pressure measuring element, and the diastolic pressure is determined indirectly by using a pulse waveform to extrapolate portions of a pressure waveform. The systems and methods can be employed in any number of applications, including, without limitation, taking a single reading from a subject, continuously monitoring a subject, or evaluating a subject during physical exertion.

Abstract: Exemplary techniques and systems for interpolating left ventricular pressures are described. One technique interpolates pressures within the left ventricle from blood pressures gathered without directly sensing blood pressure in the left ventricle.

Abstract: A medical diagnostic device performs diagnostics for assessing the ability of the arteries to respond to an increase in blood flow. The medical diagnostic device determines relative changes in arterial volume of the limb segment during a time period after a stimulus relative to the arterial volume of the limb segment during a baseline period using the amplitudes or other portions of the component pulse waves (such as early systolic components) of volume pulse waves during the baseline period and after the stimulus.

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.

Abstract: The present invention relates to a blood manometer displaying the examined person's heart condition, showing the name of a cardiac disease identified, comprising a cuff pressure control portion for adjusting the air pressure of a cuff; a blood pressure measuring portion having a pressure sensor for measuring blood pressure; a pulse measuring portion having a pulse wave sensor for measuring pulse waves; and a central process-and-control portion which processes by computing the data inputted by the blood pressure measuring portion and the pulse measuring portion, and displays in words the results of the blood pressure that has been measured, such as normal blood pressure, hypertension or hypotension, as well as the result of the pulse that has been measured, such as normal pulse, arrhythmia, tachycardia or bradycardia. The central process-and-control portion is also capable of storing and transmitting the data.