Abstract: A method of analysis is disclosed. The method comprises receiving a non-ECG signal indicative of heart beats of a sleeping subject; extracting from the signal a series of inter-beat intervals (IBI); calculating at least one Poincare parameter characterizing a Poincare plot of the IBI series; and using the Poincare parameter(s) to determine a REM sleep of the sleeping subject. In some embodiments, sleep stages other than REM sleep and/or wake stages are determined.

Abstract: According to one embodiment, a multi-sensing hazard detector for detecting potential dangers may include a back plate and a front casing that is coupled with the back plate to define a housing. A circuit board and a plurality of components may be positioned within the housing. The circuit board may be communicatively coupled with the components. The components may include, among other components, an alarm device, an occupancy sensor, and a smoke chamber. The alarm device may be activatable upon the detection of a potential hazard to warn an occupant of a potential danger, the occupancy sensor may be configured to detect the presence and/or movement of objects external to the hazard detector, and the smoke chamber may be configured to detect the presence of smoke to cause a triggering of the alarm device. The housing may comprise a volume of less than 1024 cubic centimeters.

Abstract: A communication receiver which applies signal processing for quantitatively estimating receive signal factors such as communication channel quality, signal characteristics, and overall system received bit error rate (BER) or packet error rate (PER) and which applies a general algorithm for mapping these estimated factors to control receiver performance and minimize power consumption.

Abstract: Methods and systems for ultrasound data processing are provided. One method includes acquiring channel ultrasound data from a plurality of channel connected to a plurality of elements of an ultrasound probe and storing the channel ultrasound data from the plurality of channels. The method further includes generating ultrasound images based on processing of the acquired channel ultrasound data and displaying the ultrasound images. The method also includes performing additional processing on the stored channel ultrasound data while the ultrasound images are displayed and displaying updated ultrasound images generated by the additional processing.

Abstract: The present disclosure relates to systems and methods for monitoring baby physical characteristics. In some embodiments, the method may include projecting light from a video monitoring system toward a monitored user, and detecting a heart rate of the monitored user at the video monitoring system based at least in part on detecting the projected light. The method may further include comparing the detected heart rate with a predetermined heart rate threshold, and initiating an alert based at least in part on the comparing.

Abstract: Provided is an ultrasound inspection apparatus ensuring the real-time property during ultrasound imaging, reducing the data amount to be stored, and making sound speed value correction after the imaging to allow improvement in image quality, tissue characterization, and so forth with high accuracy. The ultrasound inspection apparatus includes: a first reception signal memory storing element data; an image producer adapted to perform phasing and adding on element data based on a specified sound speed value to produce a sound ray signal, and produce ultrasound image data; a sound speed determiner adapted to determine the optimum sound speed value from a plurality of pieces of ultrasound image data produced using element data; a storage necessity determiner adapted to determine element data whether or not to satisfy a specified condition; and a second reception signal memory storing the element data as determined to satisfy the specified condition.

Abstract: An electronic circuit includes a first level shift circuit, a second level shift circuit, an internal circuit, a high voltage circuit, first and second transistors, and first and second protective circuits. The first and second protective circuits perform control the first and second transistors so as to make them non-conductive when at least one of a plurality of types of power supply voltages becomes equal to or less than a predetermined value.

Abstract: An ultrasound diagnostic apparatus generates Doppler waveform images whose visibility is improved appropriately in accordance with changes in measurement conditions. The ultrasound diagnostic apparatus includes a frequency-analyzing unit that generates frequency spectrum data on Doppler shift frequency components of ultrasonic waves that are received after being transmitted towards a subject and reflected in the subject, and a line data generating unit for generating line data, wherein arrays of multiple pixels are stipulated according to the corresponding frequencies and each pixel value represents the magnitude of the Doppler shift frequency component, based on the frequency spectrum data. The ultrasound diagnostic apparatus determines whether or not each pixel of line data at a previously appointed time point is a noise pixel, and the values of pixels that are determined to be noise pixels are adjusted by multiplying the pixel value with a weighting factor (w) of 0 to less than 1.

Abstract: A system for diverting emboli within a patient can include a device that detects a presence of emboli in a first blood vessel of a patient. A compression member can be aligned with a second blood vessel of the patient when a collar supporting the compression member is positioned at least partially around a portion of the patient. In response to the detection device, a controller can actuate the compression member, when the presence of emboli is detected, from an unactuated state to an actuated state in which at least a portion of the compression member (i) is closer to the second blood vessel than while in the unactuated state and (ii) compresses and limits blood flow through the second blood vessel.

Abstract: A partial discharge detection system for detecting partial discharge events in an electrical component includes a transducer configured to receive a signal from the electrical component generated due to an occurrence of a partial discharge and responsively provide a transducer output. A signal processing chain includes a filter coupled to the transducer which filters the transducer output signal and responsively generating a filtered output. A digital signal processor performs a Discrete Fourier Transform (DFT) on the filtered output and generates coefficients which correspond to different modulation frequencies of the filtered, output. A controller identifies an occurrence of a partial discharge in the electrical component based upon the plurality of coefficients.

Abstract: A system for monitoring animate presence, including one or more ultrasonic transducers configured to transmit an ultrasonic signal, one or more ultrasonic receivers configured to receive an echo signal in response to the transmitted ultrasonic signal, an electronic circuit for comparing the transmitted signal to the received echo signal and identify a phase shift between the signals; wherein the electronic circuit identifies animate presence based on the identified phase shift.

Abstract: In spectral Doppler imaging, a high PRF is used independent of the velocity scale. The adjustment is then of the velocity scale. By optimizing the velocity scale independent of the high PRF in an on-going or automated basis, user activation may be avoided and/or interruption to reconfigure for an altered PRF may be avoided. The acquired data may be stored, allowing for past data to be processed again when a new velocity scale or other setting is selected. The resulting spectral Doppler image may continue to display spectra over time without a gap or without premature loss of spectra due to reconfiguring.

Abstract: In one aspect, an enhanced ultrasound device may generally comprise an ultrasound probe including a housing and at least one transducer element disposed within the housing. The ultrasound probe may be configured to generate ultrasound image signals associated with an object being imaged. In addition, the device may include an acoustic receiver associated with the ultrasound probe. The acoustic receiver may be configured to generate auscultation signals associated with sounds generated by the object as the object is being imaged using the ultrasound probe.

Abstract: A device for heating tissue, comprises a housing sized for insertion through a naturally occurring body orifice to a target location within a lumen and a heat generating element within the housing focusing thermal energy on a target area separated from an outside of the housing so that, when the housing is in the target location, the target area is within tissue surrounding the lumen at a predetermined depth from a lumenal wall in combination with a temperature sensing element sensing data corresponding to a temperature of tissue in the target area and a processor controlling the heat generating element in response to the data sensed by the sensing element.

Abstract: Embodiments for adaptively forming color Doppler images in an ultrasound diagnostic system are disclosed. A method of forming a color Doppler image in an ultrasound diagnostic system comprises: scanning a first set of scan lines set at a full scan region to detect at least one scan line that passes a moving object in the full scan region among the first set of scan lines; setting a second set of scan lines based on the detected scan lines; and scanning the second set of scan lines to form a first color Doppler image.

Abstract: In a connecting structure of a terminal configured to connect a female terminal inserted into a terminal accommodating chamber to the male terminal, the female terminal comprises a tubular part made of a metal plate and formed into which the male terminal is inserted, a plate shaped engaging piece continued from a side wall of the tubular part and folded back so that the engaging piece is located in a path into which the male terminal is inserted, a notch formed on an outer side surface of a folded back part of the engaging piece. The male terminal is provided with a cut-out part which can accommodate the engaging piece, and the engaging piece is accommodated in the cut-out part when the female terminal is inserted to a set position to lock a movement of the female terminal in a pulling out direction.

Abstract: According to one embodiment, a multi-sensing hazard detector for detecting potential dangers may include a back plate and a front casing that is coupled with the back plate to define a housing. A circuit board and a plurality of components may be positioned within the housing. The circuit board may be communicatively coupled with the components. The components may include, among other components, an alarm device, an occupancy sensor, and a smoke chamber. The alarm device may be activatable upon the detection of a potential hazard to warn an occupant of a potential danger, the occupancy sensor may be configured to detect the presence and/or movement of objects external to the hazard detector, and the smoke chamber may be configured to detect the presence of smoke to cause a triggering of the alarm device. The housing may comprise a volume of less than 1024 cubic centimeters.

Abstract: A monitoring system includes a Doppler radar formed with an IEEE 802 protocol transmitter and an IEEE 802 protocol receiver to detect motion, wherein frequency waves are transmitted by the IEEE 802 protocol transmitter and reflected waves are received by the IEEE protocol 802 receiver; and an analyzer to perform Doppler operations using the IEEE 802 protocol transmitter and receiver, wherein the analyzer calibrates a training Doppler radar signal during a training phase to develop a model and wherein the analyzer applies the model with the Doppler radar signal during an operational phase to determine position.

Abstract: Methods and systems for ultrasound data processing are provided. One method includes acquiring channel ultrasound data from a plurality of channel connected to a plurality of elements of an ultrasound probe and storing the channel ultrasound data from the plurality of channels. The method further includes generating ultrasound images based on processing of the acquired channel ultrasound data and displaying the ultrasound images. The method also includes performing additional processing on the stored channel ultrasound data while the ultrasound images are displayed and displaying updated ultrasound images generated by the additional processing.

Abstract: A connector assembly includes a first connector having a first terminal and a second terminal which are used for fitting detection, a second connector fitted with the first connector, a manipulation lever for use in fitting the second connector with the first connector along a fitting direction, a fitting lock mechanism adapted to lock a fitting state of the first connector and the second connector and a fitting detection mechanism disposed at the second connector and adapted to short-circuit between the first terminal and the second terminal when the first connector and the second connector are fitted with each other, the fitting detection mechanism having a first contact point, a second contact point and a third contact point that are arranged in series between the first terminal and the second terminal when the first connector and the second connector are fitted with each other.

Abstract: A device includes a guard member, at least one bias sensor, a display, and a measurement sensor. The guard member includes an aperture on an axis. The at least one bias sensor is coupled to the guard member. The at least one bias sensor is configured to provide a bias signal corresponding to a bias force on the guard member. The bias force is aligned parallel with the axis. The display is coupled to the at least one bias sensor and is configured to provide a visible indication of the bias force. The measurement sensor is configured to provide an output signal corresponding to a measured force proximate the aperture.

Abstract: The present invention relates to a method, apparatus, and ultrasonic machine for generating a fused ultrasonic image. The method comprises extracting an anatomical location from a stored ultrasonic image, and generating the fused ultrasonic image according to the anatomical location and a currently obtained ultrasonic image. The apparatus comprises an extraction module for extracting an anatomical location from a stored ultrasonic image, and a generation module for generating the fused ultrasonic image according to the anatomical location and a currently obtained ultrasonic image.

Abstract: A general-purpose mobile communication device, general-purpose computer user-interface device, and other non-health-related electronic devices with cardiovascular monitoring capability. Various aspects of the present invention may comprise a general-purpose mobile communication device (e.g., a cellular telephone, portable email device, personal digital assistant, etc.) comprising a communication interface module adapted to communicate with a general-purpose communication network, and at least one module operational to acquire cardiac information from a user of the general-purpose mobile communication device. The general-purpose communication device may, for example, comprise a cardiac sensor (e.g., electrodes) disposed on the mobile communication device, which may be utilized to acquire cardiac information during use of the mobile communication device. Various aspects of the present invention may also comprise a non-health related electronic device (e.g.

Abstract: A physiological monitoring system may process a physiological signal such a photoplethysmograph signal from a subject. The system may determine physiological information, such as a physiological rate, from the physiological signal. The system may use search techniques and qualification techniques to determine one or more initialization parameters. The initialization parameters may be used to calculate and qualify a physiological rate. The system may use signal conditioning to reduce noise in the physiological signal and to improve the determination of physiological information. The system may use qualification techniques to confirm determined physiological parameters. The system may also use autocorrelation techniques, cross-correlation techniques, fast start techniques, and/or reference waveforms when processing the physiological signal.

Abstract: An ultrasound probe which transmits ultrasonic waves to a subject, receives ultrasonic echoes generated by reflection of the ultrasonic waves on the subject and outputs ultrasound image signals includes a case having a grip portion set therein and functional units disposed in the case. The functional units include an ultrasonic wave-generating unit, at least one integrated circuit board and a battery. The battery disposed in the case at a position corresponding to the grip portion ensures the safety of operators from heat generated in the at least one integrated circuit board and the like.

Abstract: Volumetric quantification is provided in medical diagnostic ultrasound. By acquiring both B-mode and color flow data without stitching or acquiring in real-time at tens of volumes a second, more reliable quantification may be provided. Using multiple regions of interest in a volume may allow for more accurate and/or complete flow information, such as averaging flow from different locations in the same structure (e.g., use preservation of mass to acquire multiple measures of the same flow).

Abstract: A method for measuring motion from biological imaging data including collecting non-carrier data images; patterning the non-carrier data images with synthetic carrier properties; and processing the patterned non-carrier data images with a carrier based motion tracking technique to generate images representing motion measurements. The method preferably converts images lacking a carrier signal to ones with a synthetic carrier signal such that highly accurate and robust speckle tracking can be achieved.

Abstract: Disclosed herein are methods and apparatus for obtaining at least one non-birefringence image and at least one birefringence image of a stained sample, and classifying regions of the stained sample into a plurality of classes based on the at least one non-birefringence image and the at least one birefringence image.

Abstract: A physiological monitoring system may process a physiological signal such a photoplethysmograph signal from a subject. The system may determine physiological information, such as a physiological rate, from the physiological signal. The system may use search techniques and qualification techniques to determine one or more initialization parameters. The initialization parameters may be used to calculate and qualify a physiological rate. The system may use signal conditioning to reduce noise in the physiological signal and to improve the determination of physiological information. The system may use qualification techniques to confirm determined physiological parameters. The system may also use autocorrelation techniques, cross-correlation techniques, fast start techniques, and/or reference waveforms when processing the physiological signal.

Abstract: Devices and methods for treatment of prolapsed hemorrhoidal arteries is disclosed. The devices can identify the hemorrhoid and ligate the artery without causing significant pain or distension of the rectum. The artery can be identified with ultrasound. The ligation can be performed using energy and/or mechanical structures, such as clips or rubber bands.

Abstract: Using compression, tissue elasticity data from two or more different fields of view are acquired. Since different amounts of compression may be used for the different fields of view, the dynamic range of the elasticity data is updated. A panoramic elasticity image is generated from the updated elasticity data of multiple fields of view. A panoramic elasticity image represents the combined fields of view for the elasticity data.

Abstract: A Method for measuring heart contractility of a patient, in which a mechanical shear wave is propagated through the heart and observation of the propagation leads to determine a shear wave propagation parameter representative of the elasticity of the heart is disclosed. The value of the propagation parameter at the end of a systole is sampled, which leads to a parameter representative of the end systolic elastance.

Abstract: A personal electronic device such as a smart phone can include a micro-impulse radar (MIR).

Abstract: In one embodiment, a scanning unit repeatedly scans an internal region of an object with an ultrasonic wave at a predetermined frame rate via an ultrasonic probe. An image generation unit extracts a blood flow signal based on a Doppler effect from a reflection signal and repeatedly generates a blood flow image representing a spatial distribution associated with power of the blood flow signal at the frame rate. A power average value associated with a frame or local region is calculated for the blood flow image. The blood flow image is corrected. In the correcting, a gain on the power values in the frame or local region in which the power average value exceeds the threshold are substantially reduced, and power values in the frame or local region in which the power average value is not more than the threshold are maintained.

Abstract: An ultrasonic diagnostic apparatus which can measure a time difference of motion between a plurality of sites of a cardiac muscle for the heart of a fetus is provided. On a tomographic image of the heart, a user sets a plurality of observation points. Each observation point is tracked, and a plurality of displacement waveforms representing a temporal displacement of the plurality of observation points are generated. A time difference between a plurality of representative points is calculated between the plurality of displacement waveforms. Such a time difference is displayed as a numerical value or as a graph. The representative point is a peak point, a zero-cross point, an inflection point, or the like. The plurality of observation points are set along conduction pathways in the heart for the electric signal.

Abstract: Described herein are fetal and/or maternal monitoring devices, systems and methods using UWB medical radar. These devices and systems may include a UWB sensor providing high-resolution and reliable simultaneous monitoring of multiple indicators of fetal and/or maternal health, such as fetal heart rate, fetal heart rate variability, fetal respiration, fetal gross body movement, maternal contractions, maternal heart rate, maternal respiration, and other derivative parameters during virtually all stages of pregnancy and during delivery. The sensor allows novel collection of physiological data using a single sensor or multiple sensors to develop individual and aggregate normal motion indices for use in determining when departure from normal motion index is indicative of fetal or maternal distress.

Abstract: A method of displaying an ultrasound image may improve the accuracy of disease diagnosis by enabling a user to recognize an accurate direction of a bloodstream. The method includes: obtaining first Doppler data that is generated by transmitting an ultrasound signal to an object and receiving an echo signal reflected from the object by using a probe; displaying a sound source marker at a first position on a screen; and generating and displaying a first color Doppler image from the first Doppler data in consideration of the first position.

Abstract: Use of medical workflows where a first medical workflow is obtained from a plurality of medical acts performed in sequence that related to care of a patient. A set of condition-indication rules is applied to the first medical workflow to determine first condition information. The first condition information relates to a likelihood that a first medical condition exists in the patient.

Abstract: A system and method for monitoring a health condition are disclosed. The system includes a patient management application, a data store and a monitoring device. The monitoring device includes an optical sensor, a Doppler sensor, and a computing device adapted to provide health parameter values including oxygen saturation of the blood, blood flow, blood pressure, heart rate, and cardiac output.

Abstract: Techniques, systems, and devices are disclosed for ultrasound diagnostics using spread spectrum, coherent, frequency- and/or phase-coded waveforms.

Abstract: A blood flow monitor with a visual display. The monitor may include a probe monitoring circuit configured to be associated with a blood vessel. The probe monitoring circuit may transmit a burst signal and receive a reflected signal, where a frequency shift in the reflected signal represents a flow rate associated with the blood vessel. A mixer may be provided in electrical communication with the probe. A signal processing circuit in electrical communication with the output of the mixer may be configured to drive the visual display with a signal representing the flow rate associated with the blood vessel.

Abstract: A method for ultrasound based heart rate detection in a heart rate monitoring system is provided that includes receiving a demodulated Doppler ultrasound signal, applying a bandpass filter to the demodulated Doppler ultrasound signal to remove a direct current (DC) component and out-of-band noise, wherein a filtered demodulated Doppler ultrasound signal is generated, rectifying the filtered demodulated Doppler ultrasound signal to generate a rectified filtered demodulated Doppler ultrasound signal, applying a low-pass filter to the rectified filtered demodulated Doppler ultrasound signal to filter out undesired components to leave a resulting signal corresponding to power shift due to heart rate, detecting peaks in the resulting signal, and computing a heart rate based on the detected peaks.

Abstract: Operation of a patient's heart or lungs may be analyzed by transmitting ultrasound energy into the patient's lung, and detecting Doppler shifts of reflected ultrasound induced by moving borders between blood vessels/soft tissue in the lung and air filled alveoli that surround the blood vessels. Movement of the border is caused by pressure waves in the blood vessels that result in changes in diameter of those blood vessels. The detected Doppler shifts are processed with a noise reduction algorithm, and periodic features in the resulting data are then analyzed to determine the rate of the patient's heartbeat, the rate of the patient's breathing, and/or the appearance of anomalies in the patient's heartbeat.

Abstract: A non-invasive analysis system includes data collecting units and an analysis unit adapted to quantify and visualize ventricular rotation patterns of the heart. The data collecting units register rotational information about the cardiac movement for a number of time points and levels in the heart throughout the cardiac cycle. The analysis unit calculates rotation planes for different levels in the heart over time and constructs rotation planes from at least two rotation lines originating from the same level in the heart. Each of the rotation lines are created between a pair of points having matching rotation values located in ventricular walls, and to calculate a rotation axis for the rotation plane for each selected level. The analysis unit creates a model of the rotational pattern of the heart. Deflection and direction of the rotation axes for the rotation planes at selected levels of the ventricles are quantified and visualized.

Abstract: An ultrasonic diagnostic apparatus has an IQ signal acquiring unit, a signal generating unit, a first Doppler signal extracting unit and a second Doppler signal extracting unit. The IQ signal acquiring unit acquires a plurality of groups including an ultrasonic reception IQ signal, under respective interference conditions that differ from one another. The signal generating unit generates an added signal by adding the groups, and to generate an added amplitude signal by adding the amplitudes of the groups. The first Doppler signal extracting unit extracts a first Doppler signal that corresponds to motion from the added signal. The second Doppler signal extracting unit configured to extract a second Doppler signal having a property that differ from the property of the first Doppler signal. At this point, the Doppler signal extracting units are configured so as to extract the Doppler signals respectively while reducing an artifact due to tissue motion.

Abstract: Disclosed are an ultrasound information providing method and apparatus. The ultrasound information providing method includes generating a Doppler image from Doppler data of an object, acquiring a guideline indicating a moving path of the object in the Doppler image, correcting the Doppler data on the basis of an angle between the guideline and a beam axis of a probe, and displaying a Doppler image generated from the corrected Doppler data.

Abstract: A method and apparatus are disclosed for automatic optimization of Doppler imaging parameters. The method includes obtaining and storing at least two characteristic spectral lines at a predetermined pulse repetition frequency. The method further includes optimizing at least one of the Doppler imaging parameters based on the stored at least two characteristic spectral lines and a predetermined mean noise power. In one embodiment, the characteristic spectral lines are obtained by collecting in real time the Doppler spectral lines generated at the predetermined pulse repetition frequency within a predetermined time period, and processing the collected Doppler spectral lines in real time without storing them.

Abstract: Operation of a patient's heart or lungs may be analyzed by transmitting ultrasound energy into the patient's lung, and detecting Doppler shifts of reflected ultrasound induced by moving borders between blood vessels in the lung and air filled alveoli that surround the blood vessels. Movement of the border is caused by pressure waves in the blood vessels that result in changes in diameter of those blood vessels. The detected Doppler shifts are used to obtain power and velocity data at each of a plurality of different air pressure levels, and the pulmonary blood pressure of the patient is then estimated based on the obtained data.

Abstract: Data is communicated from an implanted section to an external location. The implanted section includes a transducer such as a piezoelectric element with an ultrasound reflecting surface that moves in response to an applied driving signal. A sensor generates an output signal that depends on a sensed parameter, and a control circuit drives the transducer based on the sensor's output. The transducer's response to the driving signal is repeatable such that the value of the output signal can be determined by measuring the variations in the velocity of the surface using externally applied Doppler ultrasound, and computing the value of the sensor's output from the measured variations in velocity.

Abstract: A semi-invasive ultrasound imaging system for imaging biological tissue includes a transesophageal probe or a transnasal, transesophageal probe connected to a two-dimensional ultrasound transducer array, a transmit beamformer, a receive beamformer, and an image generator. The two-dimensional transducer array is disposed on a distal portion of the probe's elongated body. The transmit beamformer is connected to the transducer array and is constructed to transmit several ultrasound beams over a selected pattern defined by azimuthal and elevation orientations. The receive beamformer is connected to the transducer array and is constructed to acquire ultrasound data from the echoes reflected over a selected tissue volume. The tissue volume is defined by the azimuthal and elevation orientations and a selected scan range. The receive beamformer is constructed to synthesize image data from the acquired ultrasound data.