Abstract: A dementia determination system (100) includes: an acquisition unit (111) configured to acquire a long press ratio which is a ratio of a number of long presses in which a button of an operating device (140) is pressed for a time longer than a reference time, to a number of presses of the button of the operating device (140) used by a user to operate an electric device (130); a determination unit (112) configured to determine a dementia level of the user based on the long press ratio acquired by the acquisition unit (111); and an output unit (113) configured to output dementia information indicating the dementia level determined by the determination unit (112), wherein the determination unit (112) is configured to determine that the dementia level is more severe as the long press ratio is lower.

Abstract: Techniques are described for determining cognitive impairment, an example of which includes accessing a set of epochs of magnetoencephalography (MEG) data of responses of a brain of a test patient to a plurality of auditory stimulus events; processing the set of epochs to identify parameter values one or more of which is based on information from the individual epochs without averaging or otherwise collapsing the epoch data. The parameter values are input into a model that is trained based on the parameters to determine whether the test patient is cognitively impaired.

Abstract: The use of a device to measure patient sensory response through the application of an incrementally increased electrical current to the oropharynx.

Abstract: A diffuse optical tomography (DOT) system for generating a functional image of a lesion region of a subject includes a source subsystem configured to generate optical waves, a probe coupled to the source subsystem and configured to emit the optical waves generated by the source subsystem toward the lesion region and to detect optical waves reflected by the lesion region, a detection subsystem configured to convert the optical waves detected by the probe to digital signals, and a computing device including a processor and a memory. The memory includes instructions that program the processor to receive the digital signals sent from the detection subsystem, calculate an initial estimate of the functional image by solving an inverse optimization problem with a shape-regularized Fast Iterative Shrinkage-Thresholding algorithm (FISTA), reconstruct the functional image iteratively using a Finite Difference Method (FDM) or a Finite Element Method (FEM), and display the functional image.

Abstract: The invention provides a system (1) comprising a sensor (100) for measuring a skin parameter, the sensor (100) comprising a plurality of spatially separated light sources (110) configured to provide light source light (111), and one or more detectors (120) configured at a first distance (d1) from each of the light sources (110), wherein the first distance (d1) is selected from the range of 5-80 mm, wherein the sensor (100) is configured to provide the light source light (111) with optical axes (OL) under an angle (a) relative to an optical axis (O2) of the one or more detectors (120) selected from the range of 10-80°, wherein the sensor (100) comprises at least three light sources (110), wherein the light sources (110) are configured to provide unpolarized light source light (111), wherein the system (1) further comprises an analysis system (2) wherein the analysis system (2) is configured to generate a corresponding skin sensor value on the basis of a detector response of the one or more detectors (120) at o

Abstract: A system and method for facilitating analysis of a wound in a target subject is provided. The method comprises obtaining one or more digital images of at least a portion of the wound; extracting a plurality of feature vectors from the one or more digital images; and identifying, using a first trained deep neural network, a type of wound tissue based on the plurality of extracted feature vectors.

Abstract: Device, systems, and methods are provided that can be used to monitor, examine, and/or analyze hair conditions and make suggestions to improve the hair conditions.

Abstract: A physiological status monitoring apparatus is provided. The physiological status monitoring apparatus comprises a motion sensor, an event detector, and an estimator. The motion sensor senses movement of an object to generate a sensing signal. The event detector detects abnormal events occurring on the object according to the sensing signal. The estimator outputs an index according to at least one abnormal event which occurs during a predetermined time period to indicate a possibility of pauses in breathing.

Abstract: Systems and methods are disclosed for management of anesthetized patients. The systems and methods can enable determination of whether the patient risks an anesthetic complication, an intraoperative stroke, or awareness during anesthesia. The disclosed systems and methods can involve receiving a signal from EEG electrodes on the head of a patient during presentation of a stimuli to the patient. This signal can be used to generate segment posteriorization index values and/or synchronization values. Based on synchronization values anesthesia depth of the patient can be reduced or a surgical intervention performed. Based on segment posteriorization index values anesthesia depth of the patient can be increased.

Abstract: A method for titrating a stimulation parameter for one or more electrode contacts in a system for stimulating a hypoglossal nerve of a patient includes activating one of the one or more electrode contacts to stimulate the hypoglossal nerve of the patient, obtaining a first and/or second physiological measurement from the patient, comparing the first and/or second physiological measurement to a first and/or second predetermined target value, adjusting a stimulation parameter for the one of the one or more electrode contacts if the first and/or second physiological measurement differs from the first and/or second predetermined target value.

Abstract: A computer-implemented system for training a subject to improve psychophysiological function for performance of stress-inducing activity includes a sensor interface device and a non-transitory, tangible computer readable storage medium storing computer program code. The sensor interface provides measurement of a physiological parameter of the subject, indicating stress in the subject. The computer readable storage medium stores computer code that provides a set of training segments presenting the subject with one or more visual, audible, or tactile prompts wherein at least one of the training segments simultaneously presents the subject with a stress-inducing prompt while inducing the subject to perform a relaxation-inducing protocol.

Abstract: An apparatus or handheld probe for intraoperative nerve identification and/or visualization of a target of interest of a living subject includes a light source for emitting a beam of light to illuminate a target of interest; a light delivering means for delivering the beam of light emitted from the light source onto the target of interest so as to illuminate the target of interest therewith; and an imaging head positioned over the target of interest for acquiring polarized diffuse reflectance spectral images of light from the illuminated target of interest responsive to the illumination, for identifying and/or visualizing one or more nerves in the target of interest.

Abstract: A blood pressure measuring device includes a device main body; a curler configured to bend along a circumferential direction of a wrist of a living body, configured to come into contact with a portion of the wrist at least between a dorsal side and a palmar side; a strap provided to the device main body, and further configured to be mounted on the wrist; a sensing cuff arranged in a region of the wrist where arteries exist; a back plate provided on a side of the sensing cuff nearer to the curler; a rubber plate provided between the curler and the back plate and configured to elastically deform; a pressing cuff provided on a side of the curler nearer to the strap; and a cuff provided on a side of the curler nearer to the living body.

Abstract: Various analyte sensing apparatuses and associated housings are provided. Some apparatuses comprise one or more caps. Some apparatuses comprise a two-part adhesive patch. Some apparatuses comprise one or more sensor bends configured to locate and/or hold a sensor in place during mounting. Some apparatuses utilize one or more dams and/or wells to retain epoxy for securing a sensor. Some apparatuses utilize a pocket and one or more adjacent areas and various transitions for preventing epoxy from wicking to undesired areas of the apparatus. Some apparatuses include heat-sealable thermoplastic elastomers for welding a cap to the apparatus. Related methods of fabricating such apparatuses and/or housings are also provided.

Abstract: An assembly for enabling a caregiver to secure a physiological monitoring device to an arm of a user can include the physiological monitoring device a cradle configured to removably secure to the physiological monitoring device and to the user's arm. The physiological monitoring device can include a first connector port configured to electrically connect to a first cable and a first locking tab movable between an extended position and a retracted position. The cradle can include a base, first and second sidewalls, a back wall connected to the base and the first and second sidewalls. The cradle can further include a first opening in the back wall configured to receive the first connector port and a second opening in the first sidewall configured to receive the first locking tab when the physiological monitoring device is secured to the cradle and the first locking tab is in the extended position.

Abstract: A wearable cardiovascular monitoring device comprises a force sensor configured for a blood pressure measurement using an ear of a human. The device is worn over the ear, with a first vise face of an ear-vise contacting one side of the ear, and a second vise face of the ear-vise contacting another side of the ear. Force is applied to ear through one or both of the vise faces and is used to measure blood pressure.

Abstract: Intravascular devices, systems, and methods are disclosed. In some embodiments, side-loading electrical connectors for use with intravascular devices are provided. The side-loading electrical connector has at least one electrical contact configured to interface with an electrical connector of the intravascular device. A first connection piece of the side-loading electrical connector is movable relative to a second connection piece between an open position and a closed position, wherein in the open position an elongated opening is formed between the first and second connection pieces to facilitate insertion of the electrical connector between the first and second connection pieces in a direction transverse to a longitudinal axis of the intravascular device and wherein in the closed position the at least one electrical contact is electrically coupled to the at least one electrical connector received between the first and second connection pieces.

Abstract: The present disclosure provides methods and systems for analysing a noise in a vital sign signal, including functions of acquisition, data storage, calculation and analysis, processing, result output etc. of a vital sign signal. The systems may calculate and analyse information obtained in the vital sign signal, especially noises, by using various algorithms, and analyse or process a calculation result and output an analysis result.

Abstract: The disclosure extends to methods, devices, and systems for removing speckle from a coherent light source, such as laser light. The methods, devices, and systems help eliminate or reduce speckle introduced from a coherent light source, such as laser light, by utilizing the teachings and principles of the disclosure.

Abstract: A biological image processing method is provided. The method acquires first time-frequency data from an image data; processing the first time-frequency data into the second time-frequency data using a filter module; and converting the second time-frequency data into a time domain signal. The filter module is obtained by machine learning, and is trained using a first sample time-frequency signal as input and a second sample time-frequency signal as output, wherein the noise of the time domain signal corresponding to the second sample time-frequency signal is less than the noise of the time domain signal corresponding to the first sample time-frequency signal. A biological information detection device is also provided.

Abstract: Apparatus and methods for error modeling and correction in a blood analyte sensor or system. In one exemplary embodiment, the apparatus employs: (i) a training mode of operation, whereby the apparatus conducts “machine learning” to model one or more errors (e.g., unmodeled variable system errors) associated with the blood analyte measurement process, and (ii) generation of an operational model (based at least in part on data collected/received in the training mode), which is applied to correct or compensate for the errors during normal operation and collection of blood analyte data. This enhances device signal stability and accuracy over extended periods, thereby enabling among other things extended periods of blood analyte sensor implantation, and “personalization” of the sensor apparatus to each user receiving an implant. In one variant, the blood analyte is glucose, and the implanted sensor utilizes an oxygen-based molecular measurement principle.

Abstract: A method for providing a thermal feedback performed by a feedback device is disclosed. The method includes: applying an operating power to a thermoelectric element to start a thermoelectric operation for outputting a thermal feedback; stopping the application of the operating power to terminate the thermoelectric operation; and when the application of the operating power is stopped, applying a buffering power to the thermoelectric element to reduce a temperature returning speed of a contact surface so that a thermal inversion illusion is prevented. The thermal inversion illusion being opposite to the outputted thermal feedback.

Abstract: Embodiments of the present disclosure relates to a method and system for analyzing risk associated with respiratory sounds. The system comprises a respiratory monitoring device to assign risk category to a plurality of respiratory sound signals captured by at least one acoustic sensor. The present disclosure includes receiving the respiratory sound signals captured by at least one acoustic sensor and a user input data comprising information related to symptoms from a user interface of a user device. The present disclosure further includes deriving primary respiratory sound characteristics for each captured respiratory sound signal, and determining secondary respiratory sound characteristics based on the primary respiratory sound characteristics.

Abstract: Disclosed is a method (100) of providing a personalized parameter model of at least part of the physiology of a person (10) carrying a set of sensors (12, 14, 16) with a computer system (20, 50) comprising a processor arrangement (22, 52) for the purpose of updating a biophysical model or digital twin of the person. The method comprises, with said processor arrangement, receiving (103) sensor data from said set of sensors with the communication interface over a defined period of time, the sensor data from each sensor representing a parameter relevant to an actual physiological state of the person; evaluating (105) the received sensor data from each sensor to define the personalized parameter model (3), said model including the evaluated dynamic behaviour of the values of each parameter observed with said sensors over the defined period of time and providing (107) the defined personalized parameter model for updating a digital model (1) of at least part of the anatomy of said person.

Abstract: A method for predicting an arousal level used by a computer of an arousal level prediction apparatus that predicts an arousal level of a user is provided. The method includes obtaining current biological information regarding the user detected by a sensor, and calculating a current arousal level of the user based on the current biological information. The method further includes obtaining current environment information indicating a current environment around the user, and predicting a future arousal level, which is an arousal level a certain period of time later, based on the current arousal level and the current environment information. Based on the predicted future arousal level, the method further issues a notification to the user, or controls an operation of a device.

Abstract: A disease prediction model construction apparatus is provided. The disease prediction model construction apparatus may include a spectral data acquisition unit that emits near-infrared rays toward a skin of a subject to acquire near-infrared spectral data and a prediction model construction unit that constructs a disease prediction model based on a time-blood glucose graph generated from the acquired near-infrared spectral data.

Abstract: A system for monitoring autoregulation includes an oxygen saturation sensor configured to obtain an oxygen saturation signal indicative of an oxygen saturation of a patient. The system also includes a controller having a processor configured to receive a blood pressure signal indicative of a blood pressure of the patient and the oxygen saturation signal, determine a change in the oxygen saturation signal and a change in the blood pressure signal over a period of time, and provide an indication that the patient's autoregulation is intact if the oxygen saturation changes by more than an oxygen saturation threshold and if the blood pressure changes by less than a blood pressure threshold during the period of time.

Abstract: A vital signs monitoring system includes a peak pattern detection module configured to output a peak prediction signal from sensor signals based on a peak prediction algorithm; a vital sign estimating module configured to estimate a vital sign based on the peak prediction signal; an activity and context detector module configured to output a context signal based on at least one environmental condition and/or activity level of the person; and a concept drift detection module configured to output a drift signal based on drift detected in the estimated vital sign. The peak pattern prediction module is configured to update the peak prediction algorithm based on the context signal and the drift signal.

Abstract: A novel in-line X-ray CT imaging apparatus is presented. The X-ray CT imaging apparatus comprises one or a plurality of X-ray sources, one or a plurality of one-piece curved X-ray detectors, a rotational gantry, a translational stage, a computer that is loaded with data acquisition system and CT imaging software. The one-piece curved detector is truly one entity with capability of forming a native curved geometry with pre-determined radius. The detector would have the same or similar electronics to that of a conventional rigid X-ray flat panel that includes a photon conversion phosphorus layer configured to generate light photons in response to radiation. Both X-ray source and detector are mounted on a rotation gantry. X-ray CT 3D image projection data can be acquired while the gantry is rotating and object on the stage is moving translational simultaneously. Using CT software, image reconstruction can be performed at the computer.

Abstract: The present application discloses a method for detecting an abnormity in an optical path or measuring and adjusting of a dynamic balance of a gantry in a CT system, comprising performing, by a gantry controlled by a controller, a test scan along an optical path of the CT system, the optical path being a path along which rays pass from a ray source to a detector. The method further comprises obtaining, by a processor, data relating to the test scan, and based on the data relating to the test scan. The method further comprises determining, by the processor, a status characteristic index of the optical path or an amount of dynamic imbalance of the gantry. The method further comprises analyzing, by the processor, a result of the status characteristic index; determining, by the processor, whether the optical path is abnormal, or determining whether a dynamic balance of the gantry satisfies a requirement based on a result of the analysis of the amount of dynamic imbalance.

Abstract: A radiographic imaging apparatus includes: a plurality of first operation portions configured to move the moving member in a selected moving direction by being operated to select a moving direction of the moving member; a second operation portion for preparing a movement of the moving member to a selected final movement position by being operated to select the second operation portion; a third operation portion for initiating the movement of the moving member to the final movement position by being operated after the second operation portion is operated; a lamp built in the first operation portion; a moving direction calculation unit for calculating the moving direction of the moving member to the final movement position from a current position and the selected final movement position of the moving member; and a display unit for displaying the lamp built in the first operation portion corresponding to the moving direction of the moving member to the final movement position by blinking the lamp.

Abstract: The X-ray CT apparatus according to the present embodiment includes a bed, a foot switch, and processing circuitry. The bed is on which an object is placed. The foot switch is provided on the bed. The processing circuitry is configured to switch functions of the foot switch based on whether or not a CT fluoroscopic mode for performing fluoroscopy of the object is activated.

Abstract: A positioning system (10) for positioning a patient (101) for diagnostic imaging is provided. The system comprises a sensor arrangement (12) with at least one sensor (14, 16) configured to provide a sensor signal indicative of at least one body parameter of the patient (101), a controller (18) configured to determine a value of the at least one body parameter based on the sensor signal of the at least one sensor (14, 16), and at least one actuatable support (20) configured to move at least one of an arm (105) and a leg (107) of the patient with respect to a torso of the patient.

Abstract: A system and method for indicating a desired target radiation area of a radiation beam from a phase contrast radiology system on a subject comprising a first and second light field generator to project light fields on a subject. Both light fields are decoupled from path of the radiation beam. The overlapping area of both light fields indicates the target radiation area. The light fields do not substantially match a radiation beam path.

Abstract: Disclosed is a technique for quickly removing and correcting a cone-beam artifact generated in a computed tomography (CT) image in consideration of bone and soft tissue regions when using a large-area X-ray detector in order to reduce a CT imaging time for large volumes in a cone-beam CT system. An apparatus includes an input unit configured to receive a start image including a cone-beam artifact, a computation unit configured to separate a high-density material image and a low-density material image from the start image received by the input unit, generate a reproduced image in which the cone-beam artifact is reproduced using the low-density material image, execute a correction process for subtracting the reproduced image from the start image to generate a corrected image, and iterate the correction process using the corrected image as a start image; and an output unit configured to output a final corrected image generated.

Abstract: Disclosed herein is an endoscope comprising: an insertion tube; a radiation detector configured to detect radiation particles in a first range of energy and radiation particles in a second range of energy.

Abstract: There is provided an arrangement including an x-ray detector arranged in conjunction with in-line x-ray focusing optics configured for manipulation of x-rays in medical transmission radiography, wherein the in-line x-ray optics includes an array of lenses, in which the lenses cover parts of, or the entire, field of view, and in which the x-ray detector is a photon-counting detector. Furthermore, the x-ray detector is an energy-resolving detector and chromatic aberration of the lens array and/or limited coherence of the source is compensated for by the energy resolution of the energy-resolving detector, and/or the x-ray detector is a depth-resolving detector and chromatic aberration of the lens array and/or limited coherence of the source is compensated for by depth resolution or volumetric resolution in the detector.

Abstract: When a control unit 30 detects that the apparatus becomes a traveling mode, the control unit 30 stops the power supply from a power supply circuit 52 to an opening-degree sensor S2 of a collimator leaf and a distance sensor S3 for detecting the distance between an X-ray tube 11 and a subject. On the other hand, for an acceleration sensor S1 for measuring the acceleration of a collimator 12, power supply from the power supply circuit 52 is stopped. When the control unit 30 determines that the apparatus is not in the traveling mode, electric power is supplied to all of the acceleration sensor S1, the opening-degree sensor S2, and the distance sensor S3. As a result, power consumption can be reduced by constantly supplying electric power to the acceleration sensor S1 required to perform constant monitoring, and in the traveling mode, power supply to the opening-degree sensor S2 and the distance sensor S3 used when performing X-ray imaging is stopped, so that power consumption can be reduced.

Abstract: A sterile drape can be used to cover a C-arm imaging machine used during a medical procedure. In some configurations, the drape includes a detector body cover, a C-arm body cover, and an elastic banding. The detector body cover can be positioned around a detector of the imaging machine. The C-arm body cover can include a tunnel portion that is positioned to surround a portion of the C-arm extending away from the detector. The elastic banding can extend about a perimeter of a junction between the detector body cover and the C-arm body cover. The elastic banding can provide a biasing force that draws the junction between the detector body cover and the C-arm body cover closed.

Abstract: An imaging apparatus includes a camera to capture a camera image of a target disposed on an examination table; an X-ray source to generate and radiate X-rays; a memory to store imaging protocols; a display; and a controller. The controller is configured to receive information regarding a selection of an imaging protocol, identify a position of an imaging region of the target based on the camera image, the imaging region corresponding to the selection of the imaging protocol and the camera image being acquired with the examination table at a first distance from the X-ray source, control the display to display the camera image of the target and an indicator indicating the imaging region on the camera image based on the identified position, and control the X-ray source to radiate the X-rays toward the target disposed on the examination table at a second distance from the X-ray source.

Abstract: A radiographic imaging apparatus (100) is configured to generate movement maps (30) of pixels (21) belonging to a first image (11) based on the first image (11) and a second image (12) captured at different times, to move a pixel (21) of the first image (11) based on a smoothed movement map (30a) in which high-frequency components of the movement maps (30) have been suppressed in a spatial direction and generate a deformed image (11a), and to combine the deformed image (11a) and the second image (12).

Abstract: A method may include obtaining an initial image that is captured by scanning a scan object using the imaging device. The method may also include performing an iteration process including one or more iterations. Each of the one or more iterations may include determining, according to a thickness model, an equivalent thickness associated with the scan object based on a brightness of a first image and the target brightness, determining one or more second exposure parameters corresponding to the equivalent thickness and the target brightness based on the thickness model, and generating a second image by directing the imaging device to scan the scan object based on the one or more second exposure parameters using the imaging device. The first image may be the initial image in a first iteration of the one or more iterations or an image generated in a previous iteration.

Abstract: A method and apparatuses are provided to estimate, for two or more detector elements in an array of photon-counting detector elements, respective energy spectra of an X-ray beam incident on the corresponding detector elements from an X-ray source, the energy spectra being estimated by modeling X-ray attenuation as a function of X-ray energy when an X-ray beam is transmitted through a filter and set, for each detector element of the two or more detector elements, a first energy threshold of an energy range that is detected by the each detector element, the first energy threshold of the each detector element being based on the estimated energy spectra of the each detector element.

Abstract: Devices and methods for predicting risk and likelihood of post-operative gastrointestinal impairment based on regression analysis of multiple spectral events related to intestinal sounds, with decreased or eliminated falsely elevated values of those events due to ambient noise.

Abstract: A method and a device for simultaneously carrying out blood flow Doppler imaging and pulse Doppler imaging, said method comprising: taking transmitting a B pattern sequence once and then transmitting blood flow sequences for multiple times as a transmission sequence group, and transmitting said transmission sequence group in sequence (S101); for each transmission sequence group, sequentially receiving a first echo signal group reflected by a tissue area of interest in response to each transmitted blood flow sequence (S102); sequentially performing beam composition on the first echo signal group corresponding to the blood flow sequence transmitted each time (S103); sequentially performing wall filtering on a first multiple beam corresponding to the blood flow sequence transmitted each time, and obtaining a second multiple beam corresponding to the blood flow sequence transmitted each time (S104); and performing a blood flow pattern imaging process and a blood flow spectrum imaging process according to the subs

Abstract: An example monitoring device for detecting and measuring a vital sign of a subject includes: a base; a battery mounted to the base; first and second transceivers attached to the base at opposing angles, and powered by the battery to transmit pulses and receive reflected pulses; an antenna powered by the battery, and configured to wirelessly transmit data acquired from the first and second transceivers; and a computing device powered by the battery, and operatively coupled to the first and second transceivers and the antenna, the computing device having a processing device and a memory storing instructions that, when executed by the processing device, cause the monitoring device to determine a respiration rate by detecting a cyclical change in distance based on the reflected pulses.

Abstract: An ultrasonic measurement method includes irradiating an object to be measured with an ultrasonic wave, acquiring a reflection wave from the object, calculating at a processor an acoustic impedance in a depth direction of the object from the reflection wave, and estimating and outputting a thickness of the object based upon an inflection point determined by second-order differentiation of the acoustic impedance.

Abstract: In part, the disclosure relates to computer-based methods, devices, and systems suitable for detecting a delivery catheter using intravascular data. In one embodiment, the delivery catheter is used to position the intravascular data collection probe. The probe can collect data suitable for generating one or more representations of a blood vessel with respect to which the delivery catheter can be detected.

Abstract: An intravascular imaging device is provided. In one embodiment, the intravascular imaging device includes a flexible elongate member sized and shaped for insertion into a vessel of a patient, the flexible elongate member having a proximal portion and a distal portion; an imaging assembly disposed at the distal portion of the flexible elongate member, the imaging assembly including: a flex circuit; a conductor extending along the flexible elongate member and in electrical communication with the flex circuit; and a support member around which the flex circuit is positioned, the support member including a conductive portion electrically coupled to the support member.

Abstract: Devices, systems, and methods relating to intraluminal imaging are disclosed. In an embodiment, an intraluminal imaging device is disclosed. One embodiment of the intraluminal imaging device comprises a flexible elongate member configured to be inserted into a body lumen of a patient, the flexible elongate member comprising a proximal portion and a distal portion. The intraluminal imaging device further comprises an ultrasound imaging assembly disposed at the distal portion of the flexible elongate member. The ultrasound imaging assembly comprises a support member, a flexible substrate positioned around the support member and including a proximal region and a distal region, the proximal region comprising a plurality of cutouts defining a plurality of substrate ribbons, a plurality of transducer elements integrated in the distal region of the flexible substrate, and a plurality of control circuits disposed on the proximal region of the flexible substrate.