Abstract: A method, including generating a magnetic field in a region from a first magnetic field radiator located at a first position and a second magnetic field radiator located at a second position. A volume having a multiplicity of vertices is delineated within the region, and respective values of the magnetic field at the multiplicity of vertices are measured. In response to the respective values, respective first dipole moments to the first magnetic field radiator and respective second dipole moments to the second magnetic field radiator are assigned. A value of the magnetic field within the volume is calculated in terms of the first dipole moments and the second dipole moments.

Abstract: A method includes obtaining foot force data that is created by sampling, in accordance with a sampling signal, data from pressure sensing elements of a shoe sensor system. The method further includes obtaining three-dimensional foot data that is created by sampling, in accordance with the sampling signal, data from an accelerometer of the shoe sensor system. The method further includes correlating the foot force data and the three-dimensional foot data in accordance with the sampling signal to produce correlated foot data. The method further includes processing the correlated foot data to determine one or more of: distance traveled during a time period, stride length data, time duration, fatigue indication, injury prevention indicators, elevation tracking for the time period, running optimization, and rotational sport optimization.

Abstract: A monitoring and feedback device to assist a horse rider in achieving proper balance and posture by measuring one or more load data parameters, such as load magnitude, load angle, or torque, for both stirrups simultaneously and providing visual or audible feedback on that load data to the rider or a non-riding instructor. Load measuring brackets are attached to the stirrup bar of a saddle and each measures one or more of the load data parameters applied. Processing circuitry generates signals for transmitting, either wired or wireless, feedback signals representing the load data to a visual display or sound headset and thereby provides real time information to a rider or non-riding instructor.

Abstract: A method for invariant gait analysis using gyroscope data wherein the improvement comprises the step of using pairs of raw measurements to factor out orientation, wherein a motion representation which is both invariant to sensor orientation changes and highly discriminative to enable high-performance gait analysis.

Abstract: Embodiments of the present disclosure help to synchronize multiple video segments of an actor or actors performing athletic maneuvers. Among other things, various embodiments help provide a side-by-side visual comparison of athletic maneuvers.

Abstract: Employing outputted tones on a client device and/or headset is facilitated to identify hearing sensitivity of a user for both ears at various frequency bands and provide an indication of the users hearing sensitivity as compared to a normal hearing curve of a plurality of users on the same client device and/or headset or differing client devices and/or headsets.

Abstract: Systems, devices, and methods are provided for the assembly and subsequent delivery of an in vivo analyte sensor. An applicator with sensor electronics is inserted into a tray containing an assembly that includes a sharp and an analyte sensor. The insertion causes the assembly to couple with the sensor electronics and form a deliverable sensor control device retained within the applicator, which can then be placed in position on a body of a user to monitor that user's analyte levels.

Abstract: The present invention described a system for an energized ophthalmic device with a media insert that includes microfluidic elements upon or within the media insert. In some embodiments, the microfluidic elements may be useful for the purpose of analyzing an analyte such as glucose in a fluid sample. In addition, some embodiments can function with a medicament administering device to treat an abnormal condition identified during the analyte analysis in the fluid sample.

Abstract: Systems, devices, and methods are provided for changing the power state of a sensor control device in an in vivo analyte monitoring system in various manners, such as through the use of external stimuli (light, magnetics) and RF transmissions.

Abstract: A method for determining oxygen saturation includes emitting light from sources into tissue; detecting the light by detectors subsequent to reflection; and generating reflectance data based on detecting the light. The method includes determining a first subset of simulated reflectance curves from a set of simulated reflectance curves stored in a tissue oximetry device for a coarse grid; and fitting the reflectance data points to the first subset of simulated reflectance curves to determine a closest fitting one of the simulated reflectance curves. The method includes determining a second subset of simulated reflectance curves for a fine grid based on the closest fitting one of the simulated reflectance curves; determining a peak of absorption and reflection coefficients from the fine grid; and determining an absorption and a reflectance coefficient for the reflectance data points by performing a weighted average of the absorption coefficients and reflection coefficients from the peak.

Abstract: The invention generally relates to enclosed desorption electrospray ionization probes, systems, and methods. In certain embodiments, the invention provides a source of DESI-active spray, in which a distal portion of the source is enclosed within a transfer member such that the DESI-active spray is produced within the transfer member.

Abstract: An electrode structure, which can be used as a biosensor, is provided that has non-random topography located on one surface of an electrode base substrate. The non-random topography of the electrode structure and the electrode base substrate of the electrode structure are of unitary construction and unitary composition and thus there is no interface is located between these elements of the electrode structure.

Abstract: Optimizing psychiatric and physiologic monitoring of a patient having PTSD or anxiety-related mental health condition. According to an embodiment, one or more physiological variables are longitudinally measured; resting heart rate is measured from which a timeseries is constructed; outlier anomalous values are removed from the timeseries, it is de-trended and/or de-meaned; and a serial normal sinus rhythm beats (SDNN) and/or other parameters are determined. Fractal properties of the serial SDNN values are calculated, such as the Hurst exponent alpha via detrended fluctuation analysis (DFA) or spectral regression; and other measures of chaos and nonlinearity are calculated, such as the Shannon entropy of the SDNN or related timeseries. Where such measures indicate a statistically-significant transgression of a context-indexed reference range, a notification is provided to a case management clinician or caregiver so that appropriate additional evaluation and diagnosis and treatment may be undertaken.

Abstract: A method and system for measuring psychological stress disclosed. In a first aspect, the method comprises determining R-R intervals from an electrocardiogram (ECG) to calculate a standard deviation of the R-R intervals (SDNN) and determining a stress feature (SF) using the SDNN. In response to reaching a threshold, the method includes performing adaptation to update a probability mass function (PMF). The method includes determining a stress level (SL) using the SF and the updated PMF to continuously measure the psychological stress. In a second aspect, the system comprises a wireless sensor device coupled to a user via at least one electrode, wherein the wireless sensor device includes a processor and a memory device coupled to the processor, wherein the memory device stores an application which, when executed by the processor, causes the processor to carry out the steps of the method.

Abstract: A method for a vehicle includes using sensors in a vehicle seat to detect biometrics of a person sitting in the seat and a vehicle controller determining from the biometrics of the person whether the person requires medical attention. In response to the person requiring medical attention, a request for assistance for the person is broadcasted via a V2X transceiver of the vehicle to medical practitioners of a medical practitioner network who are near a location of vehicle during the broadcasting. The medical practitioner network includes the person as a subscriber and medical practitioners as providers. Alternately, in response to the person requiring medical attention, the vehicle controller uses an autonomous vehicle control system of the vehicle to drive the vehicle to a medical facility.

Abstract: A system and method for modeling patient-specific spinal cord stimulation (SCS) is disclosed. The system and method acquire impedance and evoked compound action potential (ECAP) signals from a lead positioned proximate to a spinal cord (SC). The lead includes at least one electrode. The system and method determine a patient-specific anatomical model based on the impedance and ECAP signals, and transform a dorsal column (DC) map template based on a DC boundary of the patient-specific anatomical model. Further, the system and method map the transformed DC map template to the patient-specific anatomical model. The system and method may also include the algorithms to solve extracellular and intracellular domain electrical fields and propagation along neurons. The system and method may also include the user interfaces to collect patient responses and compare with the patient-specific anatomical model as well as using the patient-specific anatomical model for guiding SCS programming.

Abstract: Methods, systems, and apparatus, including medium-encoded computer program products, for analyzing data include: receiving data including a person's responses regarding judgments of semantic similarities between items selected from a group of items falling into a same categorical level; processing the data to determine a measure of distance within a generated representation of the person's responses regarding the judgments of semantic similarities; and generating a score of degree of cognitive impairment for the person based at least in part on the determined measure of distance within the generated representation.

Abstract: A watch-like early allergy detection, notification and management system is equipped with a motion detector as well as one or more physiological sensors to measure heart rate, skin color change, skin galvanic response, oxygen saturation and blood pressure to detect early symptoms of an allergic reaction. False alarms are reduced by simultaneously measuring ambient temperature and physical activity of the subject. Sudden onset of skin itch, redness, sweating, increase in heart rate or a drop in blood pressure without a preceding hot ambient condition or strenuous physical activity is interpreted as an allergic reaction. The system is also equipped with a subject locator and a GPS receiver to assist a caregiver in finding the subject rapidly. The system further features a medication compartment to start managing the allergic reaction quickly. The system is particularly beneficial for children that may become scared or hide away upon onset of an allergic reaction.

Abstract: A system for accessing a patient's uterine cavity and detecting perforations in the uterus includes an elongated probe having a flow channel extending to a terminal outlet in a distal region of the probe. A fluid source is coupled to the flow channel, and a seal on the probe is positionable in an endocervical canal. The probe may be trans-cervically inserted into the uterine cavity, and a fluid may be introduced through the channel to flow outwardly from the terminal outlet into the uterine cavity. A parameter of said fluid flow is monitored to detect a perforation in the uterus.

Abstract: An embodiment of the invention is directed to a method for the real time monitoring and measurement of sleep quality of a subject comprising the steps of; obtaining information from the subject using sensory signals; analyzing the information contained within the signals using signal processing and artificial intelligence; and using the analyzed information to create a protocol to improve the sleep quality of the subject. Another embodiment of the invention is directed to a system for real time monitoring and measurement of sleep quality of a subject comprising: a means for obtaining sensory information from the subject; a means for transmitting the sensory information; a means for analyzing the sensory information; and a means for creating a protocol to improve the sleep quality of the subject.

Abstract: A device and method for monitoring pain of a user (50) are presented. The device (10) comprises a receiving unit (12) for receiving an accelerometer signal (38) from an accelerometer sensor (30) worn by the user (50), wherein the accelerometer signal (38) comprises components of a pulse signal (20) and a respiration signal (22); and a processing unit (14) configured to: derive the pulse signal (20) and the respiration signal (22) from the accelerometer signal (38); adapt the pulse signal (20) based on the respiration signal (22) in order to obtain a corrected pulse signal (40); and derive a pain descriptor based on the corrected pulse signal (40).

Abstract: A strain sensor device having a biological substrate composed of a standalone bone graft or an isolated piece of bone that can be incorporated directly into, or attached to another piece of bone that is then implantable, in a biological subject, and a method thereof. The strain sensor device can includes a strain sensing circuit, which is composed of at least a first dielectric layer and a first conductive layer, that functions as a strain gauge. The first dielectric layer can be composed of dielectric material disposed over the biological substrate. The first conductive layer, which has a pattern, can be disposed over the first dielectric material. A bonding interface is disposed between the biological substrate and the first dielectric layer. The bonding interface can be composed of an underlayer of polydimethylsiloxane and a first interface layer. The underlayer can be disposed on the bone graft substrate.

Abstract: A method and apparatus for receiving, from a wearable sensor, current lactate level information of a user; setting, by the user, a target fatigue value; determining target lactate level information based on the target fatigue value; receiving characteristics of a physical exercise including information of an end of the physical exercise; determining adjusted characteristics of the physical exercise in order to match the current user lactate level information in the end of the physical exercise with the target lactate level information, based on the current lactate level information of the user, the target lactate level information and the characteristics for the physical exercise; and providing feedback to the user based on the adjusted characteristics of the physical exercise.

Abstract: The invention relates to a headset apparatus for detecting a multi bio-signal comprising: a headset body configured to be mounted on a user's head; a plurality of electrodes which are exposed on an outer surface of the headset body so as to be in contact with a forehead of a user when the headset body is mounted on a user's head; a brainwave detection unit which is embedded in the headset body and which detects a brainwave signal based on a signal detected by the plurality of electrodes; a heartbeat detection module which extends from the headset body through a signal cable and which is configured to be mounted on a user's ear to detect a heartbeat signal; and a headset controller to determine a complex stress index based on the brainwave signal detected by the brainwave detection unit and the heartbeat signal detected by the heartbeat detection module.

Abstract: Aspects of the present disclosure provide a wearable audio product for obtaining biologically-relevant information associated with a user comprising. The audio product comprises a first electrode placed over the user's auditory cortex on a first side of the user's body, a second electrode placed on the first side of the user's body, a first reference electrode placed on the first side of the user's body, a processor coupled to the first, second, and first reference electrode, the processor configured to take one or more actions based on signals received from the first, second, and first reference electrodes, and an electroacoustic transducer coupled to the processor. Any or all of the electrodes described herein may include any integer number of electrodes clustered in the specified location.

Abstract: A system and method implement biometric sensing with sensor fusion. A first sensor is coupled with a user and is capable of sensing a first characteristic of the user. A second sensor is coupled with the user and is capable of sensing a second characteristic of the user. A memory stores software with machine readable instructions that when executed by a processor implement an algorithm to correct for motion artifacts included within the second characteristic based upon activity of the user determined from the first characteristic.

Abstract: The invention provides a body-worn vital sign monitor that measures a patient's vital signs (e.g. blood pressure, SpO2, heart rate, respiratory rate, and temperature) while simultaneously characterizing their activity state (e.g. resting, walking, convulsing, falling) and posture (upright, supine). The monitor processes this information to minimize corruption of the vital signs and associated alarms/alerts by motion-related artifacts. It also features a graphical user interface (GUI) rendered on a touchpanel display that facilitates a number of features to simplify and improve patient monitoring and safety in both the hospital and home.

Abstract: An apparatus for monitoring EMG signals of a patient's laryngeal muscles includes an endotracheal tube having an exterior surface. Conductive electrodes are formed on the endotracheal tube. The conductive electrodes are configured to receive the EMG signals from the laryngeal muscles when the endotracheal tube is placed in a trachea of the patient. At least wireless sensor is formed on the endotracheal tube, and is configured to wirelessly transmit information to a processing apparatus.

Abstract: Embodiments include a method of determining an oxygen content in a bodily tissue or in blood of a human or animal body, wherein a variable representative of oxygen content in the bodily tissue or in the blood is detected at least over one cardiac cycle and is correlated with a contraction state of a heart. Embodiments include a device configured to be inserted into the human or animal body, wherein the device includes at least one sensor unit that detects a signal representative of an oxygen content along a measurement path. Embodiments include a reflector provided on the device, wherein the reflector is arranged in the measurement path between a transmitter and a receiver of the at least one sensor unit to reflect the signal.

Abstract: A system and method for processing photoplethysmography (PPG) signals in a vehicle. The system and method include receiving a PPG waveform signal from an optical sensor. The system and method also include processing a PPG measurement signal based on the PPG waveform signal. The system and method additionally include receiving a noise waveform signal from at least one of: a seat assembly sensor, a vehicle sensor, and a vehicle system. Additionally, the system and method include processing a motion artifacts measurement signal based on the noise waveform signal. The system and method further include processing a refined PPG signal to suppress the motion artifacts measurement signal from the PPG measurement signal.

Abstract: A method and system for low-distortion denoising of an ECG signal are disclosed. The method comprises determining at least one beat of the ECG signal for denoising using a beat selection logic and denoising the at least one beat using at least one ensemble averaging filter. The system includes a sensor to detect the ECG signal, a processor coupled to the sensor, wherein the processor includes a beat selection logic unit, and a memory device coupled to the processor, wherein the memory device includes an application that, when executed by the processor, causes the processor to determine at least one beat of the ECG signal for denoising using a beat selection logic and to denoise the at least one beat using at least one ensemble averaging filter.

Abstract: Certain aspects of the present disclosure relate to a method for compressed sensing (CS). The CS is a signal processing concept wherein significantly fewer sensor measurements than that suggested by Shannon/Nyquist sampling theorem can be used to recover signals with arbitrarily fine resolution. In this disclosure, the CS framework is applied for sensor signal processing in order to support low power robust sensors and reliable communication in Body Area Networks (BANs) for healthcare and fitness applications.

Abstract: Systems and methods for measuring calorie input are described. A calorie measure may be maintained. At least one image of a food item may be captured. The at least one image of the food item may be transmitted to a server. A calories consumed value may be received from the server. The calories consumed value may be determined based at least in part on the at least one image of the food item. The calorie measure may be updated based on the received calories consumed value.

Abstract: A system includes a haptic output device constructed and arranged to generate a haptic effect to a user of the system, and a chemical delivery device constructed and arranged to deliver a chemical to the user of the system.

Abstract: A method includes obtaining a set of energy dependent data generated from a spectral scan. The set of energy dependent data includes a sub-set of data corresponding to only contrast agent. The method further includes separating the sub-set of data from other data of the energy dependent data. The other data includes non-contrast agent data. The method further includes scaling the sub-set of data to change a concentration of the contrast agent in the sub-set of data from that of the sub-set of data. The method further includes visually presenting at least the scaled sub-set of data.

Abstract: A patient support for a nuclear medicine imaging system has a base a joint and a chair. The chair can pivot or rotate about the joint. This allows the patient chair to assume a patient loading and a patient imaging position with respect to the detectors of the imaging system. Furthermore, the chair is adjustable to improve the ability of a patient region to be covered by the filed of view of the detectors.

Abstract: Embodiments are described herein for determining anatomical landmarks on a patient by virtue of anatomical landmarks being called up from a database with an anatomical model and being converted into individual body dimensions and an individual position of the patient. As a result, anatomical landmarks may be called up from a database, calculated individually for the patient and used as an item of reference location information. The positioning of the patient table is thus considerably accelerated, wherein the accuracy is also improved. Thus, the item of reference location information may be calculated individually for the same patient in a different position or a different patient with different body dimensions by virtue of this item of reference location information being recalculated by the conversion rule for the respective patient.

Abstract: The invention relates to positioning of partial volumes of an anatomy in connection with an imaging process. According to the invention, a photograph is taken of an object arranged in an imaging station by a camera arranged in connection with the imaging station, which image of the anatomy is presented on a display but as transferred into a new position with respect to the imaging station. When this image and a substantially real time image taken of the imaging station are presented on a display one upon another, it is possible to follow on the display how the object being imaged positions in relation to said image taken of the anatomy transferred into the new position.

Abstract: An X-ray photography device capable of visualizing the operating state or position of a support unit in an image system during examinations with memory switches and enhancing the operability of the memory switches is provided. When a plurality of memory switches 30a-30i is operated, target rotation information corresponding to the memory switches are read from a target rotation information memory unit 40, and a C-arm is controlled to rotate, so as to make actual rotation information consistent with the target rotation information. The memory switches 30a-30i are respectively arranged in association with rotation directions and rotation angles to designate specific storage areas in the target rotation information memory unit 40 corresponding to the directions and angles. During the rotation control or when the actual rotation information is consistent with the target rotation information, the corresponding display lamp (one of display lamps 31a-31i) of the operated memory switch is turned on.

Abstract: An imaging method includes executing a low-dose preparatory scan to an object by applying tube voltages and tube currents in an x-ray source, and generating a first image of the object corresponding to the low-dose preparatory scan. The method further includes generating image quality estimates and dose estimates view by view at least based on the first image. The method includes optimizing the tube voltages and the tube currents to generate optimal profiles for the tube voltage and the tube current. At least one of the optimal profiles for the tube voltage and the tube current is generated based on the image quality estimates and the dose estimates. The method includes executing an acquisition scan by applying the tube voltages and the tube currents based on the optimal profiles and generating a second image of the object corresponding to the acquisition scan. An imaging system is also provided.

Abstract: A whole body SPECT system (10) includes a patient support (14) and a static gantry (12) which includes a plurality of rings (40a,40b,40c) of radiation detectors (42). The patient support (14) supports a patient and moves the patient in an axial direction (18) through the static gantry (12). One or more processors (20,24,32) connected to the plurality of detectors records strikes of gamma photons in the radiation detectors (42) and reconstruct the recorded strikes of the gamma photons into a whole body image.

Abstract: Nuclear medicine (NM) imaging system includes a plurality of detector assemblies that each have a movable arm and a detector head that is coupled to the movable arm. The movable arm is configured to move the detector head toward and away from an object. The NM imaging system also includes at least one processor configured to determine a body contour of the object and determine an acquisition configuration using the body contour. The acquisition configuration includes at least three of the detector heads positioned in a dense group that borders the body contour. The detector heads in the dense group are primary detector heads. The at least one processor is also configured to move at least one of the object or one or more of the primary detector heads so that the primary detector heads are in the dense group near the object.

Abstract: A heat sinking system and an imaging apparatus including the heat sinking system. The heat sinking system includes an air introducing portion, a capture portion and an air discharge portion. The air introducing portion is configured to introduce air from external, and to be in communication with heat sinking space, so that the introduced air flows into the heat sinking space and exchanges heat with a heat sinking object which is accommodated in the heat sinking space. The capture portion is configured to be in communication with the heat sinking space and the air discharge portion, and to capture air which flows from the heat sinking space to the capture portion and enable the captured air to flow into the air discharge portion. The air discharge portion is configured to discharge the air which flows in out of the capture portion to the external.

Abstract: A method and apparatus is provided to iteratively reconstruct a computed tomography (CT) image using a hybrid pre-log and post-log iterative reconstruction method. A pre-log formulation is applied to values of the projection data that are less than a threshold (e.g., X-ray intensities corresponding to high absorption trajectories). The pre-log formulation has better noise modeling and better image quality for reconstructed images, but is slow to converge. Projection data values above the threshold are processed using a post-log formulation, which has fast convergence but poorer noise handling. However, the poorer noise handling has little effect on high value projection data. Thus, the hybrid pre-log and post-log method provides improved image quality by more accurately modeling the noise of low count projection data, without sacrificing the fast convergence of the post-log method, which is applied to high-count projection data.

Abstract: An X-ray CT apparatus includes an extraction unit that acquires air data measured using the X-ray CT apparatus and the measurement data obtained by scanning the object, that extracts sensitivity variation data which is a sensitivity variation component of a detection element from the air data, and that extracts blank data from which the sensitivity variation component is removed, and a projection data generation unit that removes the sensitivity variation component and noise which are included in the measurement data, based on the sensitivity variation data, and that uses the blank data so as to perform a correction process of the measurement data from which the sensitivity variation component and the noise are removed.

Abstract: A method of determining a residue function in brain tissue, from medical images acquired after introducing contrast agent into the blood, correcting for contrast agent leakage into the tissue, comprising: a) providing time signals indicating contrast agent concentration for leaking voxels, a time signal indicating average contrast agent concentration for non-leaking voxels, and an artery input function, all derived from the images; b) fitting the leaking voxel signals to a model time signal with a free parameter for leakage rate, the model assuming that the concentration of contrast agent perfusing through a leaking voxel has a same shape as a function of time as the average contrast agent concentration for non-leaking voxels; c) using the best fit leakage rate parameter to make a correction for leakage to the leaking voxel signals; and d) deconvolving the corrected signals from the artery input function, to find the residue function.

Abstract: Provided are a tomography apparatus and a method for reconstructing a tomography image. The method includes obtaining a plurality of raw data corresponding to a plurality of views by performing a tomography scan on an object and deblurring each of the plurality of raw data based on a point spread function (PSF) that varies according to locations in a field of view (FOV) in a gantry. The method also includes reconstructing a final tomography image in which a motion of the object is corrected from the plurality of deblurred raw data based on a motion vector indicating the motion of the object.

Abstract: Methods and systems are described for operating an intra-oral imaging sensor that includes a housing, an image sensing component at least partially housed within the housing, and a magnetometer at least partially housed within the housing. An output of the magnetometer indicative of an actual magnetic field that impinges the intra-oral imaging sensor is compared to data indicative of a first expected magnetic field. In response to determining, based on the comparison, that the actual magnetic field matches the first expected magnetic field, the electronic processor alters the operation of the imaging system. In some embodiments, the electronic processor causes the intra-oral imaging sensor to operate in a low-power state in response to determining that the actual magnetic field matches a first expected magnetic field indicative of placement of the intra-oral imaging sensor in an imaging sensor storage compartment.

Abstract: The present invention is a stethoscope diaphragm including a disc and a rim. The rim includes a plurality of features extending from an inner circumference of the rim.

Abstract: Embodiments of the present disclosure are configured to assess the severity of a blockage in a vessel and, in particular, a stenosis in a blood vessel. In some particular embodiments, the devices, systems, and methods of the present disclosure are configured to assess the severity of a stenosis in the coronary arteries by monitoring fluid flow. In some embodiments, the devices, systems, and methods of the present disclosure include a flow-sensing element within a distal portion of an intravascular device that is mounted at an oblique angle with respect to a central longitudinal axis of the intravascular device. The angled flow-sensing element can be oriented away from a vessel wall and towards the center of the vessel lumen through rotation of the intravascular device.