Abstract: A vascular assessment device includes an antenna unit and a fabric unit. The antenna unit includes a substrate, a transmitting antenna and a receiving antenna spaced apart disposed on the substrate, and a circuit module disposed on the substrate. The circuit module cooperates with the transmitting antenna to emit a carrier radio wave toward a fistula of a subject, and receives, via the receiving antenna, a return wave signal formed through reflection of the carrier radio wave. The fabric unit is sleeved on the antenna unit, and includes an isolating layer adapted to be disposed between the transmitting antenna and the skin above the fistula. The fabric unit has a dielectric constant not greater than 3.

Abstract: A system for evaluating a status of a fistula of a subject includes a radio device that emits a carrier radio wave toward the fistula, and that receives a return wave signal formed through reflection of the carrier radio wave by the fistula, and an evaluating device that performs a time-frequency transform on a digitized detection signal related to the return wave signal to result in frequency spectrum information, that calculates a magnitude ratio based on the frequency spectrum information, that generates an evaluation result by using a machine learning model based on the magnitude ratio, and that outputs the evaluation result which indicates the status of the fistula.

Abstract: A vascular assessment device includes an antenna unit and a fabric unit. The antenna unit includes a substrate, a transmitting antenna and a receiving antenna spaced apart disposed on the substrate, and a circuit module disposed on the substrate. The circuit module cooperates with the transmitting antenna to emit a carrier radio wave toward a fistula of a subject, and receives, via the receiving antenna, a return wave signal formed through reflection of the carrier radio wave. The fabric unit is sleeved on the antenna unit, and includes an isolating layer adapted to be disposed between the transmitting antenna and the skin above the fistula. The fabric unit has a dielectric constant not greater than 3.

Abstract: A method for blood flow assessment in an arteriovenous (AV) fistula includes steps of: emitting a carrier radio wave toward the AV fistula, and receiving a return wave signal; generating a transmission signal based on the return wave signal; recovering a digital signal from the transmission signal, performing a digital filtering process on the digital signal to result in a filtered signal, and generating a plurality of graphic files based on a waveform of the filtered signal; and performing image recognition on the graphic files, and outputting a result of the image recognition as a result of the blood flow assessment of the AV fistula.

Abstract: A pulsed ultra-wideband sensor comprises a control unit designed for forming a time delay of a synchronizing pulse, a probing signal forming path, a transmitting antenna, a receiving antenna, a path of a probing signal transmitter, with an output of said path being connected to the transmitting antenna, a path of a return signal receiver, with an input of the path being connected to the receiving antenna, and a first electronic switch. The input of the first electronic switch is connected to the output of the path for forming a probing signal, and its outputs—to the input of the path of the probing signal transmitter and to the path of a return signal receiver. The outputs of the channels for processing a return signal, which are parts of the path of the return signal receiver, are connected to the path for calculating a respiratory rate and a heart rate.

Abstract: A pulsed ultra-wideband sensor comprises a control unit designed for forming a time delay of a synchronizing pulse, a probing signal forming path, a transmitting antenna, a receiving antenna, a path of a probing signal transmitter, with an output of said path being connected to the transmitting antenna, a path of a return signal receiver, with an input of the path being connected to the receiving antenna, and a first electronic switch. The input of the first electronic switch is connected to the output of the path for forming a probing signal, and its outputs—to the input of the path of the probing signal transmitter and to the path of a return signal receiver. The outputs of the channels for processing a return signal, which are parts of the path of the return signal receiver, are connected to the path for calculating a respiratory rate and a heart rate.

Abstract: A method for detecting fatigue is provided herein. The present invention includes the following steps: measuring a plurality of physiological feature data from a user in continuous time to generate a feature sequence; computing the rate of drop and/or calculating the difference of the rate of drop based on the feature sequence; and determining the fatigue level of the user by analyzing the rate of drop and the difference of the rate of drop. A fatigue detecting device is also disclosed here. The present invention can be utilized to effectively monitor the fatigue level of the user.

Abstract: A non-invasive continuous blood pressure monitoring system includes a first sensor configured to send a first ultra-wideband electromagnetic pulses to an upper site of a blood vessel and receive a first reflected ultra-wideband electromagnetic pulses with phase variations caused by a pressure wave propagating in the blood vessel, a second sensor configured to send a second ultra-wideband electromagnetic pulses to a lower site of the blood vessel and receive a second reflected ultra-wideband electromagnetic pulses with phase variations caused by the pressure wave propagating in the blood vessel, and a signal-processing and blood pressure displaying device configured to calculate an estimated blood pressure by taking into consideration a propagation time of the pressure wave from the upper site to the lower site in the blood vessel.

Abstract: A computer-implemented method for determining physical movements of a body organ includes steps of calculating a preliminary average of a plurality of measured data from the body organ at a sampling frequency; receiving an incoming data from the body organ; calculating a signal frequency from the incoming data and the measured data; calculating an average parameter taking the signal frequency and the sampling frequency into consideration; checking if the average parameter is different from a stored parameter; and calculating an average value of the physical movement of the body organ using the average parameter if the average parameter is different from the stored parameter.

Abstract: A laser apparatus includes an optical fiber component and a pump light source coupled to the optical fiber component. The optical fiber component includes a first fiber segment, a second fiber segment and a connecting segment that connects the first and second fiber segments. The first fiber segment includes a fiber core having a first diameter, and the second fiber segment includes a fiber core having a second diameter. The first diameter may be greater than the second diameter, and the connecting segment may have a periodically varying refractive index.

Abstract: A non-contact apparatus for monitoring cardiopulmonary activity signals comprises a pulse-series generator configured to generate a series of probing pulses and a series of reference pulses, a transmitting antenna configured to emit the probing pulses to a chest portion and a series of scattered pulses generated from the probing pulses by the scattering of the chest portion, a receiving antenna configured to receive the scattered pulses, a mixer including a first input port configured to receive the reference pulses and a second input port electrically connected to the receiving antenna and a signal-processing module configured to generate cardiopulmonary activity signals after the scattered pulses and the reference pulses are processed by the mixer.

Abstract: A method for detecting fatigue is provided herein. The present invention includes the following steps: measuring a plurality of physiological feature data from a user in continuous time to generate a feature sequence; computing the rate of drop and/or calculating the difference of the rate of drop based on the feature sequence; and determining the fatigue level of the user by analyzing the rate of drop and the difference of the rate of drop. A fatigue detecting device is also disclosed here. The present invention can be utilized to effectively monitor the fatigue level of the user.

Abstract: The apparatus comprises an ultra-wide band module or an electrocardiography module for gathering heartbeat signals of a human being. By sequentially obtaining average heart-rate values of a human being, and according to the features of the heart-rate values over a period of time, the method is utilized to determine whether the human being is going to a state of drowsiness.

Abstract: A UWB antenna for transportation means comprises a metallic screen, a dielectric substrate and a rectangular printed metallic patch. The dielectric substrate is disposed on the printed metallic patch. The printed metallic patch is disposed on the dielectric substrate, and has a horizontal trench gap and two vertical trench gaps. The horizontal trench gap is parallel to the long side of the rectangular printed metallic patch, and the vertical trench gaps respectively extend upward from each end of the horizontal trench gap to form two resonance contours.

Abstract: A pulsed ultra-wideband sensor comprises a control unit designed for forming a time delay of a synchronizing pulse, a probing signal forming path, a transmitting antenna, a receiving antenna, a path of a probing signal transmitter, with an output of said path being connected to the transmitting antenna, a path of a return signal receiver, with an input of the path being connected to the receiving antenna, and a first electronic switch. The input of the first electronic switch is connected to the output of the path for forming a probing signal, and its outputs—to the input of the path of the probing signal transmitter and to the path of a return signal receiver. The outputs of the channels for processing a return signal, which are parts of the path of the return signal receiver, are connected to the path for calculating a respiratory rate and a heart rate.

Abstract: An apparatus, system and method which use a portable sensor to monitor the physical and mental reactions of a person in motion. The physical and mental reactions in motion will be transformed into the related physical and mental characteristic vectors, which are used to build up a personalized physical and mental database. The database executes a self-learning algorithm to output a set of physical and mental weighting factors. After executing the set of physical and mental weighting factors and physical and mental characteristic vectors, an embedded calculator incorporated in the portable sensor gives a warning signal if an abnormal situation is detected.

Abstract: A non-contact apparatus for monitoring cardiopulmonary activity signals comprises a pulse-series generator configured to generate a series of probing pulses and a series of reference pulses, a transmitting antenna configured to emit the probing pulses to a chest portion and a series of scattered pulses generated from the probing pulses by the scattering of the chest portion, a receiving antenna configured to receive the scattered pulses, a mixer including a first input port configured to receive the reference pulses and a second input port electrically connected to the receiving antenna and a signal-processing module configured to generate cardiopulmonary activity signals after the scattered pulses and the reference pulses are processed by the mixer.

Abstract: A system for detecting the burn degree of skin includes a laser source for generating laser light, a light-splitting device for splitting the laser light into a pump beam and a probe beam, a modulation device positioned on the optical path of the pump beam, a sampling device positioned between the light-splitting device and the modulation device, a terahertz pulse emitter for generating terahertz pulses by irradiating of the pump beam, a terahertz pulse detector for detecting the terahertz pulse reflected by a sample, a current detector electrically connected to the terahertz pulse detector, and a phase lock-in amplifier electrically connected to the current detector. The terahertz pulse emitter includes a plurality of photoconductive antennas positioned in an array manner, and the system further includes a first fiber coupler for transmitting the pump beam from the modulation device to the photoconductive antennas of the terahertz pulse emitter.

Abstract: The present invention discloses a biochip detection system for detecting a biochip labeled with multiple fluorophores. The biochip detection system comprises a broadband light source for generating a light beam, a stand for supporting the biochip, a light integrator positioned between the broadband light source and the biochip, a lens set for adjusting the cross-sectional area of the light beam, a first filter module positioned on the optical path of the light beam, a detector, e.g., CCD camera, photodiode array, for detecting a fluorescence beam emitted from the biochip, and a second filter module positioned on the optical path of the fluorescence beam. The light integrator can be a light tunnel, a lens array or a holographic diffuser for uniforming the intensity distribution of the light beam and changing the cross-sectional shape of the light beam into a rectangle.

Abstract: A monitoring apparatus includes an antenna board including a transmission antenna for transmitting an ultra wideband electromagnetic wave to an arterial blood vessel and a reception antenna for receiving the ultra wideband electromagnetic wave scattered by the arterial blood vessel, an analog board with a plurality of electronic devices for acquiring analog signals representing the arterial pluses of the arterial blood vessel, a digital board with a plurality of electronic devices for digitalizing the analog signal, and a display device for showing the arterial pulses. The method for acquiring arterial pulses first radiates an ultra wideband electromagnetic wave to an arterial blood vessel, and measures the phase difference between the ultra wideband electromagnetic wave scattered by the arterial blood vessel and the reference ultra wideband electromagnetic wave. Finally, the arterial pulses are acquired based on the variation of the phase difference.