An apparatus for measuring bio-information may include: a pulse wave sensor comprising at least one pair of light emitters which are disposed apart from each other and a light receiver disposed between the at least one pair of light emitters, and configured to measure a plurality of pulse wave signals from an object by using the light receiver and the at least one pair of light emitters; a force sensor configured to measure a contact force that is applied to the pulse wave sensor by the object; and a processor configured to generate an integrated pulse wave signal by integrating the plurality of pulse wave signals based on the contact force and an area of a contact surface of the pulse wave sensor, and estimate bio-information of the object based on the integrated pulse wave signal.

The present invention relates to a positioning and exposure device (1) for the defined arrangement on at least one body part (2, 3) of a living being (4) and for exposing the body part (2, 3) to radiation for determining at least one vital parameter of the living being (4). The positioning and exposure device (1) here comprises at least: a guiding and support structure (6) for delimiting an examination area (8), wherein the body part (2) can be positioned during exposure in the examination area (8), wherein the guiding and support structure (6) in a section (10) bounding the examination area (8) forms at least one radiation input area (12), wherein radiation can be introduced through the radiation input area (12) into the examination area (8) and wherein the guiding and support structure (6) forms a radiation exit area (16) in a further portion (14) delimiting the examination area (8), wherein at least part of the radiation which can be introduced through the radiation input area (12) into the examination area (8) can be guided out of the examination area (8) through the radiation exit area (16), and wherein a first elongate optical guide (18) is arranged in the path (20) of the radiation at least before entry into the examination area (8), wherein the first optical guide (18) is curved at least in sections for at least one deflection of the path (20) of the radiation which can be introduced into the first optical guide (18).

The invention relates to a control device for controlling a measurement system for measuring blood pressure and optionally hemodynamic parameters of a subject. In a first measurement time period T.sub.1, for measured pressure pulses, features are determined, which characterize the respective pressure pulse. Based on the features, start values are determined and, based on the start values, a start curve TPW_F-curve is formed. The measurement system is controlled such that, after the start curve has reached a first maximum, a second measurement time period T.sub.2 succeeds, wherein a blood pressure value is determined based on the pressure measured in the second measurement time period. It has been found that by using the maximum in the first measurement time period for defining a start point for the actual blood pressure measurement, a blood pressure value and optionally also hemodynamic parameters of a subject can be determined very accurately and fast.

To provide a belt that can be closely attached to an upper arm, and an electrocardiographic measurement apparatus. A belt includes a belt body formed in a band shape, and an electrode including a plurality of electrode pieces disposed on a main surface of the belt body, located side by side in a short direction of the belt body, and connected in series by a signal line.

A construction method and an application of a digital human cardiovascular system based on hemodynamics are provided, the construction method comprising: partitioning various parts of a human body according to a distributed hemodynamic monitoring system, and determining granularity of a digital human model system; constructing an arterial blood flow transmission equation based on an elastic tube model for arteries, and defining physiological significance for characteristic values of the equation; inputting signals, characteristic values and hemodynamic parameters acquired by the distributed hemodynamic monitoring system into the digital human model system; and obtaining a dynamic and distributed digital human cardiovascular system through finite element calculation. An individual dynamic digital human model based on hemodynamics is constructed through the distributed characteristic values of various parts of the human body and the calculated hemodynamic parameters. The model can dynamically record and display cardiovascular states of various parts of the human body in real time.

A blood pressure monitor configured to removably mount to a cuff in a substantially symmetrical position with respect to a width of the cuff can include a housing defining an interior, a first port, and a second port. The first port can: secure to a first prong of the cuff when the cuff is mounted in a first orientation; receive and secure to a second prong of the cuff when the cuff is mounted in a second orientation; and enable fluid communication between the interior and at least one of a first fluid passage within the first prong and a second fluid passage within the second prong. The second port can: secure to the second prong of the cuff when the cuff is mounted in the first orientation; and receive and secure to the first prong of the cuff when the cuff is mounted in the second orientation.

A hemodynamic parameter (Hdp) monitoring system for diagnosing a health condition of a patient and for establishing Hdp marker values or Hdp surrogate marker values for purposes of comparison with Hdp values of a patient is provided. An Hdp monitor senses, measures, and records Hdp values exhibited by the patient during a basal or non-exposure period and furthermore Hdp values exhibited by the patient during or after an exposure period during which the patient is exposed to low-energy electromagnetic output signals. An electrically-powered generator is adapted to be actuated to generate said low-energy electromagnetic carrier output signals for exposing or applying to the patient such output signals during said exposure period.

The present invention relates to a method and system for estimating blood pressure of a subject. In particular, but not exclusively, the method involves receiving a photoplethysmogram (PPG) signal from a light-based Pulse-Plethysmography sensor applied to the skin of a subject and reconstructing a pulse blood pressure waveform between systolic and diastolic blood pressure of the subject. Additionally, but not exclusively, the method involves processing the pulse blood pressure waveform and reconstructing an absolute blood pressure waveform of the subject.

Provided is an intelligent system for search and rescue in a special environment such as a disaster, including a body surface feature extracting apparatus, a vital sign extracting apparatus, a speech feature extracting apparatus and a network transmission apparatus that are successively in communication connection with one another. The body surface feature extracting apparatus uses a gated recurrent unit (GRU) network model for transmission and storage. The speech feature extracting apparatus includes a sound collecting module, a sound feature extracting module and a sound analyzing and processing module that are successively in communication connection with one another, with the sound analyzing and processing module being provided with a noise database comprising a plurality of ambient sounds. The network transmission apparatus includes a Zigbee network communication module, a network transmission module, a drone network relay module and a network receiving base station that are successively in communication connection with one another.

Hearing aid system comprising at least one hearing aid is provided. The hearing aid system further comprising an input unit for receiving an input sound signal from an environment of the hearing aid user and providing at least one electric input signal representing said input sound signal, an output unit for providing at least one set of stimuli perceivable as sound to the hearing aid user based on processed versions of said at least one electric input signal, a processing unit connected to said input unit and to said output unit and comprising signal processing parameters to provide said processed versions of said at least one electric input signal, at least one photoplethysmogram (PPG) sensor configured to provide a PPG signal of the hearing aid user, and a listening effort determination unit configured to provide at least one PPG morphology parameter value based at least on the PPG signal, compare the at least one PPG morphology parameter value with at least one corresponding reference PPG morphology parameter value and determine a morphology comparison measure, and determine a listening effort of the hearing aid user. A hearing aid is further provided.