Abstract: A non-invasive blood sensor includes a sensor body configured to mate with a tissue surface, light sources disposed on the sensor body, and a photodetector disposed on the sensor body in position for capturing light emanating from the tissue surface after emission from the blue light source by transmission, reflection or transflection. A non-invasive hemoglobin sensor includes blue, green and red light sources. A non-invasive WBC sensor includes green, red and infrared light sources. The light source(s) and photodetector(s) may be supported on a support structure configured to register with a corresponding portion of human anatomy in a predetermined fashion, to arrange them in a defined spatial relationship. The sensor or an integrated meter may include a controller programmed to receive signals from the photodetector and calculate blood hemoglobin and/or white blood cell counts as a function of the signals received from the photodetector(s) after emission by the light source(s).

Abstract: A method, apparatus, and a kit are capable of improving accuracy of CGS devices using dynamic outputs of continuous glucose sensors.

Abstract: Methods and systems for sensor calibration and sensor glucose (SG) fusion are used advantageously to improve the accuracy and reliability of orthogonally redundant glucose sensor devices, which may include optical and electrochemical glucose sensors. Calibration for both sensors may be achieved via fixed-offset and/or dynamic regression methodologies, depending, e.g., on sensor stability and Isig-Ratio pair correlation. For SG fusion, respective integrity checks may be performed for SG values from the optical and electrochemical sensors, and the SG values calibrated if the integrity checks are passed. Integrity checks may include checking for sensitivity loss, noise, and drift. If the integrity checks are failed, in-line sensor mapping between the electrochemical and optical sensors may be performed prior to calibration.

Abstract: A body fluid leakage detection aqueous composition, for use e.g. in intraoperative pancreatic fluid leakage detection. The composition comprises a gelling agent, increasing the viscosity of the composition, and buffering species, the composition thereby being buffered. The gelling agent is cross-linked ?-glucan microspheres. Further, the composition comprises a pH-indicator. The pH of the composition is at least 0.1 pH units lower, or higher, than a pKa of the pH-indicator.

Abstract: Systems and methods for processing sensor analyte data are disclosed, including initiating calibration, updating calibration, evaluating clinical acceptability of reference and sensor analyte data, and evaluating the quality of sensor calibration. The sensor can be calibrated using a calibration set of one or more matched sensor and reference analyte data pairs. Reference data resulting from benchtop testing an analyte sensor prior to its insertion can be used to provide initial calibration of the sensor data. Reference data from a short term continuous analyte sensor implanted in a user can be used to initially calibrate or update sensor data from a long term continuous analyte sensor.

Abstract: Light reflected from a pregnant woman's abdomen and fetus contained therein that has been received by a detector and converted into a reflected electronic signal may be received by a processor. A portion of the reflected electronic signal that is reflected from the fetus may be isolated and the isolated portion of the reflected electronic signal may be analyzed to determine a fetal hemoglobin oxygen saturation level of the fetus. The isolation may be achieved by synchronizing the reflected electronic signal with a fetal heartbeat signal and multiplying the synchronized reflected electronic signal by the synchronized fetal heartbeat signal.

Abstract: This invention relates to a liquid sample collection apparatus comprising, a port for receiving a liquid sample, a collector for storing said liquid sample, at least one conduit connecting said port to said collector, and a sample detection apparatus comprising a sensor for detecting said liquid in said collector and generating an output depending on the quantity of said liquid detected in said collector, and a controller responsive to said sensor output and configured to determine that said sample has been collected when said sensor output indicates that a quantity of said liquid above a threshold amount is detected in said collector.

Abstract: An injection needle includes a needle hub and a needle tube. The needle hub is connected to a safety protective cover by an elastic flip mechanism. Two symmetrically-distributed needle hub hooks are provided on a side wall of the needle hub. Two symmetrically-distributed protective cover snaps are provided in a hollow inner cavity of the safety protective cover. The two protective cover snaps cooperates with the two needle hub hooks. Protective cover snap stoppers are provided on outer sides of the two protective cover snaps. The injection needle employs the two needle hub hooks disposed on the side wall of the needle hub and cooperate with the two protective cover snaps disposed in the inner cavity of the safety protective cover.

Abstract: There is provided herein a motion-based evaluation of reaction time that utilizes motion detection hardware of a mobile device to determine auditory and visual stimulated reaction time. In an embodiment, the subject holds a mobile computing device equipped with built-in triaxis accelerometer and gyroscope with both hands at arms length away from the face. A visual or auditory stimulus is then presented on screen via a software application that also records the response time for the individual to initiate a movement of the device. A simple reaction time test could include the movement of the device in any direction that exceeded a threshold of movement beyond what would be expected from static holding. An embodiment of a choice reaction time test would provide for specific directional movements as it related to an instructed stimulus.

Abstract: The cognitive diversion of a child patient during medical treatment includes receiving an image of a child and processing the image to determine a contemporaneous emotional state, selecting a specific procedure and retrieving a requisite minimum state of distraction necessary for the procedure and comparing the contemporaneous emotional state to the requisite minimum state of distraction. On condition that the contemporaneous emotional state lacks the requisite minimum state of distraction, an activity is identified in a table that correlates to a degree of diversion exceeding the requisite minimum state of distraction, the identified activity is presented in a display and additional imagery of the child processed while the child engages in the identified activity in order to re-determine the contemporaneous emotional state.

Abstract: A stress level monitoring system includes a controller and a pulse oximeter electrically coupled to the controller. The pulse oximeter measures a photoplethysmograph signal. The controller determines a stress level of a patient from the photoplethysmograph signal.

Abstract: A stress state evaluation apparatus includes an acquisition section that acquires living body data from each individual included in a group, a first specification section that specifies a non-stress state of each individual based on the living body data acquired from the acquisition section, an adjustment section that adjusts a determination reference of a stress state of each individual based on the non-stress state of each individual specified in the first specification section, a second specification section that specifies the stress state of each individual using the determination reference adjusted by the adjustment section based on the living body data acquired from the acquisition section, and an operation section that operates a stress state of the group based on the stress state, which is specified by the second specification section, of each individual.

Abstract: The obtain information on the urination amount of a measurement target arid determine the health status of the measurement target on the basis of the information obtained, a CPU (1) of a urination amount measurement device (100) compares the urination amount detected by a sensor (31) with a threshold value corresponding to the body weight of the measurement target to determine the health status of the measurement target, and an output section (9) outputs the result of the determination by the CPU (1).

Abstract: Systems, devices and methods for draining and analyzing bodily fluids are disclosed where one variation of the catheter system may generally comprise a catheter having at least one opening near or at a distal end of the catheter, a barb in fluid communication with a proximal end of the catheter, a drainage tube in fluid communication with the at least one opening, and a vent tube in fluid communication with the barb. A one-way valve may be positioned in-line with the vent tube and at a location proximal to the barb and a controller may be in communication with the one-way valve, wherein the controller is programmed to apply a negative pressure to the drainage tube resulting in the one-way valve being opened and fluid passing through the vent tube.

Abstract: A feedback device for measuring pressure related information, and for providing that information in a way that is useful to the wearer of the device. At least one sensor detects pressure information and transmits at least one pressure information signal to a signal processing subsystem. The signal processing subsystem converts the received pressure information signal into at least one stimulation control signal. The signal processing subsystem then transmits the stimulation control signal to at least one stimulator, which provides stimulation to a wearer of the device reflecting the stimulation control signal received from the signal processing subsystem.

Abstract: A cognitive platform is disclosed that is configured for either or both of assessing or enhancing the cognitive abilities of an individual based on implementing one or more navigation task(s) in an environment. A first task is rendered that requires the individual to rely on allocentric navigation capabilities to navigate in the environment based on a first set of views of portions of the environment rendered at the user interface. A second task is rendered that requires the individual to rely on egocentric navigation capabilities to navigate in the environment. An indication of a cognitive ability in the individual can be generated based on the difference in the individual's performance at the first task as compared to the second task.

Abstract: A method, comprising receiving at least one of a signal relating to a first cardiac activity and a signal relating to a first body movement from a patient; triggering at least one of a test of the patient's responsiveness, awareness, a second cardiac activity, a second body movement, a spectral analysis test of the second cardiac activity, and a spectral analysis test of the second body movement, based on at least one of the signal relating to the first cardiac activity and the signal relating to the first body movement; determining an occurrence of an epileptic event based at least in part on said one or more triggered tests; and performing a further action in response to said determination of said occurrence of said epileptic event. Further methods allow classification of epileptic events. Apparatus and systems capable of implementing the method.

Abstract: A balloon catheter designed for deployment inside a target luminal organ. The balloon catheter having at least one detection element, the detection element configured to collect and send data about the balloon and/or luminal organ to a user operated control device. The control device may then analyze the received data to calculate the status of the luminal organ, such as diameter. The control device may also be configured to notify the user when the luminal organ is in a certain condition.

Abstract: A skin state measuring apparatus using a multi-wavelength light source is provided.

Abstract: A relatively low cost sensor assembly that can be used to determine a person's maximum bite force (MBF) is described. The assembly comprises a planar force sensor that is sandwiched between pieces of rigid and compliant plastic that when situated between upper and lower molars and bitten facilitates an electronic signal that can be correlated to a bite force. A user's MBF can utilized to determine to diagnose a person as having bruxism.

Abstract: A bruxism monitoring and prevention system includes a bruxism detection subsystem that is dimensioned to be positioned at least partly in an ear canal of a patient. The bruxism detection subsystem detects, when the bruxism detection subsystem is positioned at least partly in the ear canal, a change in a size of the ear canal of the patient and, in response, generates a bruxism event detection signal. A bruxism notification subsystem is coupled to the bruxism detection subsystem. The bruxism notification subsystem receives the bruxism event detection signal generated by the bruxism detection subsystem and, in response, generates a tone that is configured to be audible to the patient.

Abstract: A method of characterizing a patient's disordered breathing during a sleeping period includes performing a first partial characterization of a time axis of an audio signal in order to learn the most prominent and highly relevant events. Only at a later stage, i.e., after sufficient observation of the highly relevant events, is a full segmentation of the entire time axis actually carried out. Linear prediction is used to create an excitation signal that is employed to provide better segmentation than would be possible using the original audio signal alone. Warped linear prediction or Laguerre linear prediction is employed to create an accurate spectral representation with flexibility in the details provided in different frequency ranges. A resonance probability function is generated to further characterize the signals in order to identify disordered breathing. An output includes a characterization in any of a variety of forms of identified disordered breathing.

Abstract: The invention relates to a device for measuring and teaching human position and/or movement, comprising an actuator, specifically a motor-gear assembly, a sensor for measuring a change of the human position and/or movement in at least one joint area, and a control unit for storing the position and/or movement changes measured by the sensor and for controlling the actuator. The device comprises a power supply for operating the actuator, a tensioning mechanism, which is attachable to human skin, linked to the actuator and operated by the actuator, and which communicates to the skin a correction-oriented tensioning stimulus.

Abstract: The present disclosure pertains to a system configured to output an indicator representative of effects of stimulation provided to a subject during a sleep session. The indicator is determined based on a combination of the effect of stimulation on sleep restoration, stimulation quality, sleep architecture factors, and/or other information. The indicator is determined using age matched reference information on deep sleep duration and EEG slow wave activity. The contribution to the indicator associated with sleep architecture factors is determined based on age matched reference information including sleep onset latency, wake after sleep onset, total sleep time, micro-arousal count, sleep stage(s) prior to awakening, and/or other information.

Abstract: Presented are concepts for monitoring cardio-respiratory function of a patient. One such concept comprises detecting light or sound from the sublingual vasculature using a sublingual sensor unit adapted to be positioned at a sublingual vasculature of the patient's tongue and to generate a sensor output signal based on the detected light or sound. A processing unit adapted to receive at least one of the sensor unit output signal, wherein the sensor unit and the processing unit are arranged to analyze the venous component in the sensor output signal. An output signal from the sublingual sensor may then be used to provide information on cardio-respiratory parameters like respiration rate and respiration rate variability, for example.

Abstract: Systems and methods for automatic pain monitoring and assessment are described herein. In one example, the system may include a wearable facial expression capturing system that is placed over a subject's face. The system may be embedded with a plurality of sensors configured to detect biosignals from facial muscles and may additionally include a sensor node that recognizes facial expressions based on the detected biosignals. Pain experienced by the subject is assessed based on the facial expressions in conjunction with physiological signals obtained by other wearable sensors.

Abstract: The invention discloses an assembled head-mounted module for sensing brain activity and a head-mounted device for sensing brain activity. The assembled head-mounted module is adapted to be worn on a head of a living body and includes bases and connecting strips. Each base has a hollow portion for accommodating a signal extractor that is configured to extract brain activity signals. The connecting strips are detachably joined to the bases. The bases respectively correspond to portions of the head of the living body suitable for extracting brain activity signals when the assembled head-mounted module is worn on the head of the living body. In the invention, the structure can be flexibly assembled according to practical usage and the components can be joined or disjoined freely, thereby having more flexibility for practical applications.

Abstract: An exercise feedback system determines muscle fatigue measurements using physiological data generated by a sensor-equipped athletic garment. The muscle fatigue measurement is determined by analyzing the frequency spread of the physiological data. The exercise feedback system may customize exercise programs, determine risks of injury, or generate biofeedback for presentation on graphical user interfaces using the muscle fatigue measurements. The exercise feedback system accesses pre-determined muscle fatigue measurement models that define criteria for the aforementioned features. For instance, if an athlete is becoming fatigued and exercising with improper form based on a muscle fatigue measurement, the exercise feedback system modifies the athlete's exercise program to help target and improve the athlete's weaknesses as well as to prevent injury.

Abstract: A physiological signal measurement device includes a housing, a bracket, a rigid circuit board fastened in the housing, a first flexible circuit board assembled in the housing and the in-ear portion, and a protective sleeve. The housing protrudes frontward to form an in-ear portion. The bracket has a base portion fastened to the in-ear portion. Several portions of a front surface of the base portion protrude frontward to form a plurality of first elastic portions. The first flexible circuit board has a resilient end. The resilient end of the first flexible circuit board surrounds the plurality of the first elastic portions. The protective sleeve has a fastening portion, and a plurality of second elastic portions protruded from the fastening portion. The plurality of the second elastic portions surround the plurality of the first elastic portions and the resilient end of the first flexible circuit board.

Abstract: The present invention provides methods, devices, and systems for wireless physiological sensor patches and systems which incorporate these patches. The systems and methods utilize a structure where the processing is distributed asymmetrically on the two or more types of ASIC chips that are designed to work together. The invention also relates to systems comprising two or more ASIC chips designed for use in physiological sensing wherein the ASIC chips are designed to work together to achieve high wireless link reliability/security, low power dissipation, compactness, low cost and support a variety of sensors for sensing various physiological parameters.

Abstract: Systems, devices, and methods are provided to assess connection quality between the electrodes of a bioelectrical signal measurement and/or electrical stimulation device and the tissue, typically skin, of the subject. A test signal is provided to a first electrode, voltage differences between the first electrode and additional electrodes are determined, an impedance of the first electrode is determined based on the voltages differences, and the determined impedance indicates connection quality. This process is typically repeated for all of the electrodes to determine connection quality. The user or subject can be alerted if the connection quality is poor, and the bioelectrical signal that is recorded can be provided with data points indicating connection quality during the signal recording.

Abstract: Systems, apparatus, and methods are disclosed for bi-directionally conveying biomedical signals between a patient and signal acquisition and processing devices.

Abstract: A measuring system (1) comprises a sensor (6) arranged to be attached to a subject for obtaining a measured value representing a physical or a physiological quantity of the subject. The measuring system further comprises means for deriving a subject-related value from the measured value. The sensor is arranged to be attached at one of a plurality of positions on the subject. The measuring system further comprises means for establishing the position of the sensor on the subject. The means for deriving the subject-related value is arranged for deriving the subject-related value also in dependence on the position of the sensor on the subject.

Abstract: Techniques that facilitate condition detection in a virtual reality system and/or an augmented reality system are provided. In one example, a system includes a virtual reality component and an anomaly detection component. The virtual reality component collects motion data and biometric data from a virtual reality device. The motion data is indicative of motion information associated with one or more accelerometer sensors of the virtual reality device. The biometric data is indicative of biometric information associated with one or more biometric sensors of the virtual reality device. The anomaly detection component integrates the motion data and the biometric data into a machine learning model to generate anomaly detection data for the virtual reality device.

Abstract: A sensor device and a method using the sensor device includes a portable device (110) configured to capture composite vibration objects from at least one sensor (102b) and further configured to communicate data to a wireless node (105) in some embodiments. The sensor device further includes at least one or more processors (103, 105, or 106) operatively coupled to the portable device and configured to separate and identify separated vibration sources and further configured to identify a plurality of individual heart vibration events (302, 303, 304, 305) from the composite vibration objects where the one or more processors is further configured to mark individual heart events from the plurality of individual heart vibration events. In some embodiments, the one or more processors marks and presents individual heart events from the plurality of individual heart vibration events.

Abstract: A method, system, and/or apparatus for automatically monitoring for possible mental or physical health concerns. The method or implementing software application uses or relies upon location information available on the mobile device from any source, such as cell phone usage and/or other device applications. The method and system automatically learns user activity patterns and detects significant deviations therefrom. The deviations are automatically analyzed for known correlations to mental or physical concerns, which can then be automatically communicated to a relevant friend, family member, and/or medical professional.

Abstract: One aspect of the invention is a radiation imaging apparatus, comprising a first imaging panel including a first sensor substrate including a center region and a peripheral region, and a first scintillator arranged in the center region, a second imaging panel including a second sensor substrate including a center region and a peripheral region, and a second scintillator arranged at the center region, the second imaging panel being arranged above the first imaging panel, a supporting base configured to support the first imaging panel upward, and a supporting member arranged below the peripheral region of the second sensor substrate so that a load acting on the peripheral region of the second sensor substrate downward is received by the supporting base.

Abstract: According to one embodiment, a nuclear medical diagnostic apparatus includes at least one PET detector module and processing circuitry. The processing circuitry is configured to acquire positional information of the at least one PET detector module based on optical information, and to correct a position of the at least one PET detector module based on the positional information.

Abstract: A patient couch, in particular for radiography and/or fluoroscopy, includes an adjustable patient support having longitudinal and face sides. According to an embodiment, the patient support is supported in a rotationally and vertically adjustable manner on a least one vertical column at least by way of one of its longitudinal sides. An x-ray system with a patient couch embodied in this manner is also proposed.

Abstract: An anti-scatter device (10) for an X-ray detector (100) is provided. The anti-scatter device (10) comprises an anti-scatter grid (12) with a plurality of slats (13) for absorbing X-rays and a cover element (14, 14a) arranged on a side (17a) of the anti-scatter grid (12), wherein ends (16a) of the slats (13) are coupled to the cover element (14, 14a), and the cover element (14, 14a) comprises an electroactive polymer material. A dimension of the cover element (14, 14a) is changeable by applying a voltage to the electroactive polymer material, such that a distance between the ends (16a) of the slats is changeable by applying the voltage.

Abstract: An X-ray phase contrast imaging device of the present invention can change an arrangement pitch of slits related to a multi-slit and an arrangement pitch of phase shift sections related to a phase grating. A positional relationship among the multi-slit 3b, the phase grating, and an FPD is determined based on the arrangement pitch of the slits related to the multi-slit, the arrangement pitch of the phase shift sections related to the phase grating, and an arrangement pitch of detection elements related to the FPD. Among these arrangement pitches, by changing the arrangement pitch of the slits and the arrangement pitch of the phase shift sections, the present invention can change the positional relationship among the multi-slit, the phase grating, and the FPD.

Abstract: An image acquisition unit acquires a brain image of a subject. A cisternal region extraction unit extracts a cisternal region from the brain image by performing registration between a standard brain image and the brain image. Then, a bleeding region specifying unit specifies a bleeding region based on a first signal value distribution, which is the signal value distribution of the cisternal region extracted from the brain image, and a second signal value distribution, which is the signal value distribution of a cisternal region of the standard brain image.

Abstract: The present invention relates to visualizing vasculature structure.

Abstract: Provided are: a device (1) and a system (100) for quantitatively calculating bone density by using an X-ray image of a bone pail, in particular, an alveolar bone; and an imaging assisting tool (4) for accurately and easily performing X-ray imaging of an alveolar bone. This bone density measurement device (1) comprises: an image display unit (101) for displaying X-ray images for an imaged bone part and a reference body on the same screen; a reference body density measurement unit (103) for measuring the density of the displayed X-ray image for the reference body; a bone part density measurement unit (105) for measuring the density of the displayed X-ray image for the bone part; and a bone density calculation unit (106) for calculating the hone density of the bone part by comparing the density of the X-ray image for the bone part with the density of the X-ray image for the reference body.

Abstract: A computer-implemented method for determining and evaluating an objective tumor response to an anti-cancer therapy using cross-sectional images can include receiving cross-sectional images of digital medical image data and identifying target lesions within the cross-sectional images. For each of the target lesions, a target lesion type and anatomical location is identified, a segmenting tool is activated for segmenting the target lesions into regions of interest, lesion metrics are automatically extracted from the regions of interest according to tumor response criteria, and conformity of target lesion identification is monitored using rules associated with the tumor response criteria, prompting a user to address any nonconforming target lesion. The method also includes receiving a presence/absence of metastases, determining changes in lesions metrics, and deriving an objective tumor response based on the tumor response criteria.

Abstract: A method for extracting a blood vessel may include acquiring an image relating to a blood vessel, the image including multiple slices; determining a region of interest in the image; establishing a blood vessel model; and extracting the blood vessel from the region of interest based on the blood vessel model.

Abstract: A method for determining the position and/or orientation of at least one sensor system relative to the base structure of a scanning system during scanning of an object includes obtaining one or more tracking images using one or more cameras, where the cameras are in a fixed position with respect to the sensor system; and determining from the one or more tracking images the position and/or orientation of the sensor system relative to the base structure at a given time.

Abstract: According to one embodiment, an X-ray diagnostic apparatus includes a display and processing circuitry. The display displays information representing a position of an object corresponding to an irradiation position of an X-ray tube. The processing circuitry receives an operation for adjusting the irradiation position of the X-ray tube based on the information displayed on the display, and controls the X-ray tube based on the irradiation position adjusted by the operation.

Abstract: Systems and methods for detecting heart sound information from a subject's head are described. A system embodiment includes a headgear to be worn on the subject's head, and first and second sensors to sense respectively first and second physiologic signals each representing vibration, motion, or displacement conducted through patient body tissue. The sensed physiologic signals contain heart sound information. At least one of the first or the second sensor is included in the headgear, and placed at a head location to sense a physiologic signal indicative of heart sounds. The system includes a processor to generate a composite signal using the sensed first and second physiologic signals. The system may generate a heart sound metric using the composite signal, and detect a cardiac event such as an arrhythmia or worsening heart failure.

Abstract: The ultrasonic diagnostic apparatus according to a present embodiment includes processing circuitry. The processing circuitry is configured to: detect, based on an electrocardiogram signal, a specific heart phase in a former heartbeat and a specific heart phase in a latter heartbeat thereafter; sequentially calculate a delay time from the specific heart phase in the latter heartbeat based on a time interval between the specific heart phase in the former heartbeat and the specific heart phase in the latter heartbeat, and control an ultrasonic probe to initiate an ultrasonic scan at a timing when the sequentially calculated delay time is elapsed from the specific heart phase in the latter heartbeat.