Abstract: The device for blood flow property measurement in the body and the method of its connection to the subject enables to measure electrical impedance in the main parts of body simultaneously. The impedance is spatially localized in the particular scanning channels (5) both by the placement of the current electrodes (9) of the alternating current source (2) and by setting their frequencies, and by proper spatial placement of the voltage electrodes (6). For the purpose of the whole body measurement at least three current generators (1) and twelve scanning channels (5) are used. The number of scanning channels (5) can be adjusted as necessary. By means of this device it is possible to monitor blood pulse waves or blood flow in the particular parts of human body.

Abstract: An apparatus for evaluating a vascular endothelial function using a first cuff that occludes an artery of a patient, measuring pulse waves from pressure of a second cuff at a different position than the first cuff, and evaluating the vascular endothelial function using the pulse waves.

Abstract: A power supply unit of an electronic sphygmomanometer includes a dry cell as a primary battery, a rechargeable battery as a secondary battery, and a power supply control circuit. A voltage detector detects a voltage (characteristic value) of the rechargeable battery, and a voltage detector detects the voltage of the dry cell. A switching control unit performs switching control of the dry cell and the rechargeable battery based on a detection result by the voltage detectors.

Abstract: A breath testing apparatus is provided with on-board “Instruction Manual” tutorials incorporated in a display device installed in the device. Alternatively, on-board instructional videos can be added to various objects or processes requiring instructions.

Abstract: Systems and methods described herein use near field communications to locate a set of antennas attached to, coupled with, or near the patient. A signal emitted by an antenna in the set of antennas can be received by the other antennas in the set. A second signal can be further transmitted from another antenna in the set. The differential phase and/or time shifts between the antennas from the multiple signal transmissions can contain sufficient information to find the locations of the antennas in antenna centric coordinates. The antenna locations can then be used to find a location of a pill transmitter swallowed by the patient.

Abstract: In an electronic sphygmomanometer, a first pressure sensor and a second pressure sensor are disposed on a front surface side that serves as a first main surface of an internal circuit board, following a horizontal direction (the X direction) that is orthogonal to the direction in which the internal circuit board is sloped. As a result, the first pressure sensor and the second pressure sensor are disposed having the same height position. It is therefore possible to provide an electronic sphygmomanometer that includes, as a structure in which a pressure sensor used in the electronic sphygmomanometer is disposed, a peripheral structure for the pressure sensor that can improve the reliability of blood pressure measurement values.

Abstract: A pressure gauge for determining at least one pressure value describing a pressure of a fluid flowing in a pulsating manner in a phase of the pulsating flow, includes a pulse wave characterizer. The pulse wave characterizer is configured to obtain transmit time information of a pulse wave, and amplitude information of the pulse wave. The pressure gauge additionally includes a pressure value determiner configured to obtain a first pressure value describing a pressure of the fluid in a first phase, on the basis of the transmit time information and while using a mapping. The pressure value determiner is further configured to obtain a second pressure value describing a pressure of the fluid in a second phase, on the basis of the first pressure value and the amplitude information while using a mapping.

Abstract: A method, including: measuring first positions of a probe fixed at a first point in a body of a patient over at least a portion of a respiration cycle of the patient, and formulating respective indicators of a respiration state of the patient at the first positions. The method further includes generating a functional relationship between the first positions and the respective indicators and extracting parameters from the functional relationship. The method also includes moving the probe to a second point of the body, measuring second positions of the probe at the second point during a subsequent respiration cycle of the patient, and applying the parameters to the second positions so as to compensate for respiratory motion of the patient at the second point.

Abstract: A process for calculating an indice of arterial stiffness, including the step of extracting pulse wave analysis data from a recorded pressure of an artery, the recorded pressure is recorded as a function of time, the indice being calculated as a function of the extracted data, and the extracted pulse wave analysis data including at least one time interval.

Abstract: A system and method for measuring glucose levels in a user's blood without having to draw a blood sample. A wave energy source emits wave energy. A resonance chamber is provided that receives the wave energy and produces a frequency oscillation. An opening leads into the resonance chamber that is small yet enables a significant amount of sample tissue to bulge through the opening. The sample tissue of the user is pressed against the opening. At least a portion of the sample tissue passes through the opening and into the resonance chamber. The sample tissue loads the resonance chamber and alters the frequency oscillation created by the resonance chamber. At least some of the altered frequency oscillation is indicative of blood glucose levels within the sample tissue.

Abstract: A pulse oximeter system comprises a data processor configured to perform a method that combines a sigma point Kalman filter (SPKF) or sequential Monte Carlo (SMC) algorithm with Bayesian statistics and a mathematical model comprising a cardiovascular model and a plethysmography model to remove contaminating noise and artifacts from the pulse oximeter sensor output and measure blood oxygen saturation, heart rate, left-ventricular stroke volume, aortic pressure and systemic pressures.

Abstract: A system for sampling exhaled breath and for supply of a gas, the system comprising: a gas delivery cannula comprising at least one nasal prong for insertion into a nostril, the nasal prong comprising a distal end; an exhaled breath sampling cannula for insertion into the nostril, the exhaled breath sampling cannula comprising a distal end; and a connector for coupling the gas delivery cannula to the exhaled breath sampling cannula, such that the distal end of the exhaled breath sampling cannula is disposed deeper in the nostril than the distal end of the nasal prong, to reduce dilution of sampled exhaled breath by delivered gas. The connected is configured to facilitate adjustability of an insertion depth of the exhaled breath sampling cannula into said nostril.

Abstract: A breath sampling device includes a main housing having an input chamber, a first output chamber, and a second output chamber integrally formed therein where the input chamber and the first output chamber are coupled via a first port and the input chamber and the second output chamber are coupled via a second port, and a self-sealing apparatus within the second output chamber configured to seal at least an exhaust port of the second output chamber when a predetermined amount of initial waste air fills the second output chamber. The main housing can be configured to redirect a portion of air blown therethrough towards the output chamber via the first port when the self-sealing apparatus at least seals the exhaust port. Other embodiments are disclosed.

Abstract: A medical device obtains an oscillometric measurement associated with a patient's non-invasive blood pressure reading. The device determines a stability measure for at least one pair of pulses included in the oscillometric measurement, compares the stability measure to a threshold, and excludes the pair of pulses from an evaluation of heart beat variation when the stability measure fails to meet the threshold.

Abstract: Disclosed are methods, apparatuses, etc. for glucose sensor signal reliability analysis.

Abstract: A blood flow image diagnosis device which diagnoses a blood flow map by separating, on the basis of a plurality of blood flow maps covering a specified time including one or more cardiac beats, a blood flow of a surface layer blood vessel observed in a surface layer in an observation region of a body tissue from a background blood flow of a peripheral background region. The device distinguishably displays a first blood flow map of the surface layer blood vessel and a second blood flow map of the background blood flow. The device calculates and compares information on a blood flow including blood flow value, blood flow waveform, or blood vessel diameter in the first and second blood flow maps, and displays the calculated information.

Abstract: A blood pressure measuring device includes a flexible element configured to at least partially surround a body part and having a stiffening element configured to stiffen the flexible element; and at least one pressure sensor element attached to the flexible element.

Abstract: In an electronic sphygmomanometer, a protruding member is provided in an outside surface of a first air port connection head, and when a first air port is pushed into the first air port connection head, the protruding member passes over a first shielding plate while elastically deforming and reaches a position on the inner side of the first shielding plate. As a result, the first air port connection head is prevented from pulling out from the first air port, and a sense of the protruding member locking in upon returning to its original form is imparted on a worker. It is therefore possible to provide an electronic sphygmomanometer that includes, as a structure in which a pressure sensor used in the electronic sphygmomanometer is disposed, a peripheral structure for the pressure sensor that can improve the reliability of blood pressure measurement values.

Abstract: A computer-implemented method for characterizing circulatory blood volume and autoregulatory compensatory mechanisms to maintain circulatory blood volume is disclosed. A biological signal that emulates the arterial pulse wave is collected from a sensor. Three derived parameters are extrapolated from the biological signal. The first parameter, circulatory stress, reflects of the changes of the heart rate frequency. The second, circulatory blood volume, reflects the changes in the frequency strength of the heart rate frequency. The third, Pulse Volume Alteration (PVA) Index is a ratio of the sum of the strengths of the heart rate frequency harmonics to the strength of the heart rate frequency of the unprocessed biological signal. Each parameter is compared to a threshold value and assessed to determine an adequacy of circulatory blood volume and an appropriateness of the autoregulatory mechanisms used to maintain circulatory blood volume adequacy.

Abstract: The invention provides a system for measuring respiratory rate (RR) from a patient. The system includes an impedance pneumography (IP) sensor, connected to at least two electrodes, and a processing system that receives and processes signals from the electrodes to measure an IP signal. A motion sensor (e.g. an accelerometer) measures at least one motion signal (e.g. an ACC waveform) describing movement of a portion of the patient's body to which it is attached. The processing system receives the IP and motion signals, and processes them to determine, respectfully, frequency-domain IP and motion spectra. Both spectra are then collectively processed to remove motion components from the IP spectrum and determine RR. For example, during the processing, an algorithm determines motion frequency components from the frequency-domain motion spectrum, and then using a digital filter removes these, or parameters calculated therefrom, from the IP spectrum.