Abstract: A Jones matrix OCT offers improved image stability, image quality, and depth range of image, wherein light from a wavelength-scanning light source is split into two optical paths, and a reference arm is provided along one optical path, while a probe arm that irradiates and reflects light onto the measuring target to generate object light is provided along the other optical path. The probe arm has a polarization delay unit that linearly polarizes the light and then splits it into S-wave component and P-wave component, where the S-wave component and P-wave component are superimposed through optical paths of different optical path lengths, respectively, after which optical detectors are used to detect different spectral interference beams in the depth direction of the measuring target corresponding to the vertically polarized component and horizontally polarized component, which respectively correspond to the S-wave component and P-wave component, to obtain four spectral interference signals.

Abstract: The present invention provides a mobile-based spectrum imaging device and a method for controlling the same. A mobile-based spectrum imaging device according to an embodiment of the present invention may comprise: an optical fiber for emitting, in a beam form, light which has been collected from a light source; a linear filter which is movably installed, divides the light emitted from the optical fiber into particular wavelength bands, and makes the divided light have a wavelength band changing according to the incidence location of the light; and a control unit for controlling the location of the linear filter such that the location of incident light is changed on the linear filter.

Abstract: An imaging apparatus is disclosed for diagnosis, which can automatically discriminate an optical refractive index of flushing liquid which is utilized during pull-back scanning, and reconstruct a blood vessel cross-sectional image having an appropriate scale. An intensity of reflected light in a medium having a known refractive index is obtained in advance. An intensity of the reflected light on a border surface between a catheter sheath unit and the flushing liquid is detected based on interference light data, which is obtained during the pull-back scanning. The refractive index of the flushing liquid is calculated based on the intensity of the reflected light, an intensity of incident light obtained from the stored reflected light, and a known refractive index of the catheter sheath unit.

Abstract: A photoacoustic apparatus includes a light irradiation unit configured to irradiate an object with light; a receiving unit configured to convert a photoacoustic wave generated from the object irradiated with the light from the light irradiation unit into an electric signal; an optical coefficient acquiring unit configured to acquire optical coefficient information of the object; a sound speed acquiring unit configured to acquire sound speed information of the object by using the optical coefficient information acquired by the optical coefficient acquiring unit; and an object information acquiring unit configured to acquire object information by using the electric signal and the sound speed information.

Abstract: A monitoring system comprises sensors adapted to be worn by a user, and, a processor linked with the sensor. The processor receives sensor data and processes this data to determine user posture data including data indicative of vertical distance between level of the user's heart and ankle. Based on the posture data together with a value for degree of user chronic venous insufficiency and/or blood density, generate an estimate of user static venous pressure while the user is static, without calf muscle pump activity. The processor also processes the sensor data to determine if there is calf muscle pump activity, and generates an estimate of user active venous pressure according to the static venous pressure estimate, rate of calf muscle activity, and a value for degree of user chronic venous insufficiency. The processor may generate the venous pressure estimate in real time, and may control an NMES device accordingly.

Abstract: A contactless cardiopulmonary signal estimation method and apparatus are provided. A cardiopulmonary signal estimation apparatus may estimate a cardiopulmonary signal of a user from a heartbeat signal and a respiratory signal of the user in response to movement of a chest based on a cardiopulmonary exercise of the user.

Abstract: A system permits non-invasive measurement and wireless reporting of bodily functions of a subject wearing a diaper and an outer layer of clothing outside the diaper. The system comprises a butterfly housing which houses a plurality of sensors, a processor, a memory, and wireless circuitry. The butterfly housing has two double-arc shaped projections. Each double-arc shaped projection extends from an opposing side of the housing at a perimeter of the butterfly housing and has associated therewith a coupling clip. Each double-arc shaped projection and the associated coupling clip is configured to sandwich the outer layer of clothing to removably couple the butterfly housing to the outer layer of clothing without necessitating any modification to the outer layer of clothing. Every measurement of the bodily functions occurs without any direct contact between a skin of the subject and the butterflying housing.

Abstract: A camera coupled to a processor is disclosed. The camera is configured to capture images of the subject. The processor is configured to amplify microscopic temporal variations between the images of the subject and generate a profile of at least one microscopic temporally detected physiological variation of the subject. The processor is further configured to compare the profile of the subject to a pre-existing first aggregate profile of a plurality of third-party subjects, said aggregate profile corresponding to the at least one microscopic temporally detected physiological variation of the third-party subjects, the aggregate third-party profile corresponding to a known state of the third-party subjects.

Abstract: Embodiments of the present disclosure can comprise a wearable device for sensing and communicating data associated with a condition of a user. In some embodiments, the wearable device can comprise a biometric sensor unit configured to sense biometric data associated with a physiological condition of the user, a display unit configured to display a visual representation of the sensed biometric data from the biometric sensor unit to the user and a control unit operatively coupled to the biometric sensor unit and the display unit. The control unit may also comprise at least one processor configured to receive indications of the sensed biometric data and a communication unit configured to transmit and/or receive information associated with the sensed biometric data.

Abstract: Disclosed is a blood pressure measurement device comprising a heat flow perfusion sensor in combination with occlusion means for restricting the flow of blood in a portion of a human or animal body.

Abstract: Embodiments of the present application provide a headphone with a biological feature detection function, an interaction system and a biological feature detection method. The headphone includes: a loudspeaker, a microphone, a biological feature detection module, a mode switching module, a first communication module, a control module and a power management module. The control module is configured to detect and determine whether an instruction is received from the smart terminal, and control, according to the instruction received from the smart terminal, the biological feature detection module, the mode switching module, the power management module and the first communication module to work, and further configured to parse the biological feature from the biological feature detection module under control of the instruction received from the smart terminal, and transmit the parsed biological feature to the smart terminal via the first communication module.

Abstract: Technologies for a fabric acoustic sensor are disclosed. The fabric acoustic sensor includes a conductive thread and a non-conductive thread, which form a diaphragm that vibrates in response to a sound wave. As a result of the vibration, the conductive thread stretches, and a resistance of the conductive thread varies. The change in resistance is measured by a compute device, and the compute device may determine the sound wave based on the change in resistance. In some embodiments, the fabric acoustic sensor may be used to monitor a heart rate, locate an object, and/or provide an input for noise cancellation.

Abstract: A wireless vibrometer employs an antenna array to significantly boost the signal-to-noise ratio of faint received signals twin small objects vibrating at acoustic frequencies. This technique may be used to provide an improved physiological monitor (such as a pulse detector) or for long-range eavesdropping using the emitted power from a cell phone or the like.

Abstract: A method for non-contrast enhanced 4D time resolved dynamic magnetic resonance angiography using arterial spin labeling of blood water as an endogenous tracer and a multiphase balanced steady state free precession readout is presented. Imaging can be accelerated with dynamic golden angle radial acquisitions and k-space weighted imaging contrast (KWIC) image reconstruction and it can be used with parallel imaging techniques. Quantitative tracer kinetic models can be formed allowing cerebral blood volume, cerebral blood flow and mean transit time to be estimated. Vascular compliance can also be assessed using 4D dMRA by synchronizing dMRA acquisitions with the systolic and diastolic phases of the cardiac cycle.

Abstract: Embodiments of the invention provide a method, system and computer program product for artificially intelligent ejection fraction determination. In a method for artificially intelligent ejection fraction determination, a neural network is loaded into memory of a computer, that has been trained with different sets of cardiac imaging data acquired during imaging of a ventricle for different hearts and a known ejection fraction for each of the sets. Then, a contemporaneous set of imaging data is acquired of a ventricle of a heart and the contemporaneous set of imaging data is provided to the neural network. Finally, an ejection fraction determination output by the neural network is displayed in a display of the computer without tracing a ventricle boundary of the heart.

Abstract: Improved assemblies, systems, and methods provide safeguarding against tissue injury during surgical procedures and/or identify nerve damage occurring prior to surgery and/or verify range of motion or attributes of muscle contraction during reconstructive surgery. A stimulation control device may incorporate a range of low and high intensity stimulation to provide a stimulation and evaluation of both nerves and muscles. A stimulation control device is removably coupled to a surgical device or is imbedded within the medical device to provide a stimulation and treatment medical device. A disposable hand held stimulation system includes an operative element extending from the housing, the housing includes a visual indication to provide feedback or status to the user.

Abstract: This disclosure relates to a system and method to implement a performance test to help evaluate a patient's neurological and cognitive function. The performance test can be executed by the patient autonomously using a portable computing device, such as a tablet computer or smart phone. The portable computing device can be programmed to execute a set of modules configured to assess motor and cognitive performance, such as a manual function test module, a cognitive processing speed test module, and a movement assessment test module. The set of modules can also include a collection module to aggregate test data from the manual function test module, the cognitive processing speed test module, and the movement assessment test module.

Abstract: Systems and methods are provided for controlling an entity in response to activity in a peripheral nerve comprising a plurality of fascicles. A multicontact electrode assembly is configured to record activity from the peripheral nerve. A processing component includes a sensor mapping component configured to quantify activity associated with a proper subset of the plurality of fascicles, an evaluation component configured to determine an adjustment of the status of the controlled entity from the quantified activity of the proper subset of the plurality of fascicles, and a controller configured to provide a control signal, representing the adjustment of the status of the controlled entity, to the controlled entity.

Abstract: A medical device, such as an extra-cardiovascular implantable cardioverter defibrillator (ICD), senses R-waves from a first cardiac electrical signal by a first sensing channel and stores a time segment of a second cardiac electrical signal acquired by a second sensing channel in response to each sensed R-wave. The medical device determines at least one noise parameter from a group of the stored time segments of the second cardiac electrical signal, detects noise based on the noise parameter, and withholds detection of a tachyarrhythmia episode in response to detecting the noise.

Abstract: A system for determining electrophysiological data comprising an electronic control unit configured to acquire electrophysiology signals from a plurality of electrodes (130) of one or more catheters, select at least one clique of electrodes from the plurality of electrodes (136) to determine a plurality of local E field data points, determine the location and orientation of the plurality of electrodes, process the electrophysiology signals from the at least one clique from a full set of bipole subcliques to derive the local E field data points associated with the at least one clique of electrodes, derive at least one orientation independent signal from the at least one clique of electrodes (138) from the information content corresponding to weighted parts of electrogram signals, and display or output catheter orientation independent electrophysiologic information to a user or process.

Abstract: The present application is a neurological feedback system and method. The neurological feedback provides a trigger event to evoke a first neurological response from the brain of a user and a feedback event to evoke a second neurological response from the brain of a user to counter the first neurological response. As such, when the trigger event evokes a positive first neurological response, such that, for example, dopamine is released by the brain, the feedback event evokes a negative second neurological response, such that, for example, less or no dopamine is released by the brain in response the trigger event (and the converse). The neurological feedback may be useful to break additions or train a brain not to crave certain things.

Abstract: A microsurgical tool is configured for monitoring, evaluating, mapping, and/or modulating electrophysiological activity in the vicinity of a lumen within a body. The microsurgical tool may be part of a system used in evaluating the sympathetic tone of a subject and/or neuromodulating an anatomical site in the vicinity of a lumen within a body. Such systems include a catheter system for controlled sympathectomy procedures and/or controlled micro ablation procedures. Such systems may be used in methods for performing a controlled surgical procedure, including performing controlled surgical procedures in a minimally invasive manner.

Abstract: A method and apparatus for capturing a magnetic resonance image in which processes of generating T1 contrast for different regions of an object overlap with each other, thereby obtaining a magnetic resonance image having an improved contrast between different tissues within a short time. Therefore, a time required for obtaining a magnetic resonance image may be reduced, and a magnetic resonance image enabling improved diagnosis of a disease or other abnormal condition may be provided.

Abstract: A magnetic resonance (MR) imaging system (100) including a housing (102) having first and second openings (110, 116), and first and second solenoid coils (160, 150), the first and second solenoid coils (160, 150) generate a magnetic field suitable for imaging within a region of interest (ROI). The first and second solenoid coils (160, 150) have a common longitudinal axis (LA). The first and second openings (110, 116) are situated on opposite sides of the housing (102) along the longitudinal axis (LA). The first solenoid coil (160) has a different inside diameter than the second solenoid coil (150) and is positioned adjacent the first opening (110). The second solenoid coil (150) is positioned adjacent the second opening (116). Accordingly, the system provides improved access to the patent during imaging, e.g. for MR guided interventional procedures.

Abstract: Systems and methods for tracking a surgical tool. Exemplary embodiments can comprise a surgical port, a tracking element configured for coupling to a surgical tool, and a camera mounted to a proximal end of the surgical port and configured to capture image data associated with the tracking element.

Abstract: A measurement apparatus which includes a processor is provided. The processor is configured to calculate, based on a distance image of a measurement target object with at least a joint, a position of a first portion of the measurement target object which corresponds to a non-joint portion or a terminal portion, and a position of a second portion of the measurement target object different from the first portion, and calculate, based on a first line connecting the calculated positions, a joint angle related to a joint of a first measurement target of the measurement target object.

Abstract: A notification system is provided that provides notification of patient events such as movement and/or incontinence. The notification system provides for a plurality of different pressure sensor pads as well as an incontinence pad to be used in association with a single monitor.

Abstract: Provided are a highly confidential personal authentication device which uses brain waves, a personal authentication method, and a personal authentication system and program. The authentication device using brain waves is provided with: an electroencephalograph; and a processing unit which, with respect to brain waves with respect to a plurality of stimulus events obtained by the electroencephalograph, determines a discrimination score according to a discrimination model for estimating brain information for each authentication candidate accumulated in advance, based on a discrimination-model-to-discrimination-model comparison of the discrimination score, identifies and authenticates an authentication candidate who provided the model. The identifying of the authentication candidate based on the discrimination score in the processing unit is based on the discrimination score and/or decoding accuracy determined from the discrimination score.

Abstract: Systems and methods of use for continuous analyte measurement of a host's vascular system are provided. In some embodiments, a continuous glucose measurement system includes an electrochemical sensor incorporating a silver/silver chloride reference electrode, wherein a capacity of the reference electrode is controlled.

Abstract: Provided are a method and systems for performing pulse oximetry. A light signal is emitted for a period of time and a modulated light signal is detected. The modulated light signal includes a red signal and an infrared signal. The modulated light signal is originated by an interaction of the light signal with a pulsatile tissue and a non-pulsatile tissue. The modulated light signal is processed to estimate an oxygen saturation in the pulsatile tissue during the period of time. The processing includes removing a non-pulsatile component resulting from the interaction of the light signal and the non-pulsatile tissue. The non-pulsatile component can be removed by removing a first parameter from an intensity of the infrared signal and a second parameter from an intensity of the red signal. The parameters are pre-determined using a calibration process to reproduce a true value for a ratio used to determine the oxygen saturation.

Abstract: The optical sensing device is provided for receiving and transmitting a light signal. A light working area is defined according to a measurement range of the light signal. The optical sensing device includes a body, a transformation part and a signal unit. A light emitting unit and a light receiving unit are disposed at an end of the body, and the light emitting unit and the light receiving unit face the light working area. The transformation part pivots on the body. A light processing unit is disposed on the transformation part, and the light processing unit is capable of locating in the light working area for transmitting or receiving the light signal. The signal unit is configured for transmitting and processing the light signal.

Abstract: The disclosure provides methods and systems for determining tissue oxygenation. An electronic device obtains a data set including a plurality of images of a tissue of interest, each resolved at a different spectral band. Spectral analysis is performed, upon image registration, at a plurality of points in a two-dimensional area of the images of the tissue. The spectral analysis including determining approximate values of oxyhemoglobin levels and deoxyhemoglobin levels at each respective point in the plurality of points. The predetermined set of eight to twelve spectral bands includes spectral bands that provide improved methods for measuring tissue oxygenation.

Abstract: A non-invasive, optical-based physiological monitoring system is disclosed. One embodiment includes an emitter configured to emit light. A diffuser is configured to receive and spread the emitted light, and to emit the spread light at a tissue measurement site. The system further includes a concentrator configured to receive the spread light after it has been attenuated by or reflected from the tissue measurement site. The concentrator is also configured to collect and concentrate the received light and to emit the concentrated light to a detector. The detector is configured to detect the concentrated light and to transmit a signal representative of the detected light. A processor is configured to receive the transmitted signal and to determine a physiological parameter, such as, for example, arterial oxygen saturation, in the tissue measurement site.

Abstract: An improved method for assessing rapport and potential compatibility between two or more persons, including collecting a sample profile of the brain wave patterns of each person, analyzing the profiles and comparing the characteristics of each profile with the profile or profiles of other individuals according to predetermined criteria.

Abstract: The present disclosure provides a wakefulness determination method for accurately determining wakefulness. The wakefulness determination method uses a respiration sensor that obtains respiratory data about respiration of a seated occupant, a calculation unit that calculates the respiratory data obtained from the respiration sensor, and a controller including a determination unit that determines a state of the seated occupant. The wakefulness determination method includes: obtaining, by the respiration sensor, respiratory data of the seated occupant; calculating, by the calculation unit, a degree of change in respiration from the obtained respiratory data; and determining, by the determination unit, wakefulness of the seated occupant by using a Bayesian filter where a probability of occurrence of drowsiness in the seated occupant for the degree of change in respiration is taken as a likelihood and the likelihood is multiplied by a prior probability of occurrence of drowsiness.

Abstract: An allergy testing system comprises a skin test device having a grip portion for holding the device. One or more legs extend from the grip, and each leg is oriented to interact with a well containing a potential allergen. Each leg has a test head, and each test head has a plurality of elongated spike members. The elongated spike members have a sharp end configured to receive the potential allergen from a well and to puncture a patient's skin. In addition, each test head has at least one touch activator. The touch activator is longer than the plurality of elongated spike members, such that during an allergy test, the touch activator comes into contact with the skin prior to the elongated spike members, causing the touch activators to activate nerve tissue that blocks transmission of pain, resulting in a reduction of pain and/or discomfort during testing.

Abstract: A method and system are provided for detecting pancreatic trauma in a trauma patient during a surgical operation. The method includes positioning a detection device in contact with the patient's pancreas, applying a chemical indicator to the detection device after removing the detection device from the patient, and detecting a chemical reaction on the detection device that is indicative of the pancreas releasing an enzyme as a result of pancreatic trauma.

Abstract: The present application discloses a medical device useful for the diagnosis and/or treatment follow-up of human joints, in particular a device for positioning human joints for CT-scan and MRI. The medical device allows an accurate and comprehensive assessment of human joints, characterizing quantitatively biomechanical consequences, whole joint kinematics alterations, cartilage mechanical behavior under pressure and clinical susceptibility to further damage.

Abstract: Monitoring system configured to provide a health chart on an operator display. The health chart includes a plurality of indicators that identify patient parameters. The plurality of indicators form a column that extends parallel to a first axis. The health chart also includes linear projections that are aligned with respective indicators and extend parallel to a second axis that is perpendicular to the first axis. The linear projections represent values of the patient parameters that correspond to the respective indicators. The values are determined by the physiological data obtained from corresponding sensors. The patient monitoring system is configured to determine lengths of the linear projections based on the physiological data. The lengths extend from proximal ends of the linear projections to distal ends of the linear projections. The distal ends move parallel to the second axis toward or away from the respective indicators to change the length.

Abstract: A system for assigning zone rankings to a patient. The system includes a processor, at least one database, and a computer readable medium in communication with the at least one database and comprising one or more instructions that, when executed, can cause the processor to receive at least one physiological signal from a medical monitoring device that is worn by a patient; assign a normal zone ranking to the patient based upon historical patient data stored on the at least one database; determine one or more metrics from the at least one physiological signal of the patient; assign a first zone ranking to the patient based upon the one or more metrics, the first zone ranking selected from a plurality of abnormal zone rankings stored on the at least one database; determine one or more actions to initiate based upon the assigned first zone ranking; and initiate the one or more determined actions.

Abstract: A system and method for training program generation and modification based on user input goal data and assessed functional state and/or workload performance. A user-interface preferably operating on a mobile device permits a user to record bio-signals indicative of functional state. Assessments are performed on the received bio-signal data to produce training session targets based on the current functional state of the user. Workload performance may be monitored and the training session targets modified based on measured past performance to improve future performance. Various embodiments are disclosed.

Abstract: The present invention relates to a system (1) for estimating cardiovascular fitness of a person, comprising a heart rate monitor (10) for acquiring a heart rate signal including information about the heart rate of the person, an activity monitor (20) for acquiring an activity signal indicative of physical activity of the person, a classifier (30) for classifying the activity of the person based on the acquired activity signal, a selector (40) for selecting one or more heart rate features obtained from the acquired heart rate signal based on the acquired heart rate signal and the classification of the activity for use in an estimation of the cardiovascular fitness of the person, and an estimator (50) for estimating the cardiovascular fitness of the person based on the one or more selected heart rate features.

Abstract: A system and a method of using dual-energy absoptiometry to estimate visceral fat metrics and display results, preferably as related to normative data. The process involves deriving x-ray measurements for respective pixel positions related to a two-dimensional projection image of a body slice containing visceral fat as well as subcutaneous fat; at least some of the measurements being dual-energy x-ray measurements, processing the measurements to derive estimates of metrics related to the visceral fat in the slice; and using the resulting estimates.

Abstract: The present invention is a Miniature Vein Enhancer that includes a Miniature Projection Head. The Miniature Projection Head may be operated in one of three modes, AFM, DBM, and RTM. The Miniature Projection Head of the present invention projects an image of the veins of a patient, which aids the practitioner in pinpointing a vein for an intravenous drip, blood test, and the like. The Miniature projection head may have a cavity for a power source or it may have a power source located in a body portion of the Miniature Vein Enhancer. The Miniature Vein Enhancer may be attached to one of several improved needle protectors, or the Miniature Vein Enhancer may be attached to a body similar to a flashlight for hand held use. The Miniature Vein Enhancer of the present invention may also be attached to a magnifying glass, a flat panel display, and the like.

Abstract: The present invention involves systems and related methods for performing percutaneous pedicle integrity assessments involving the use of neurophysiology.

Abstract: A headphone (3, 4) comprises a body (5) forming a chamber (26) for enclosing an ear of a user of the headphone (3, 4). The body (5) has an acoustic seal (7) of a flexible material surrounding the chamber (26), and the body (5) has a cushion (8) extending around the acoustic seal (7) and separate from the acoustic seal (7). The cushion (8) has a first side face (38) for engaging with the head of the user.

Abstract: A method for determining a status of a user utilizing wireless earpieces includes performing sensor measurements of a user utilizing at least optical sensors of the wireless earpieces, wherein the optical sensors detect metabolic abnormalities of the user, analyzing the sensor measurements, determining the status of the user utilizing at least sensor measurements from the optical sensors of the wireless earpieces, and communicating an alert to the user in response to there being a change in the status of the user. A wireless earpiece or set of wireless earpieces with optical sensors for detecting metabolic abnormalities are also provided.

Abstract: A sensor insert is provided for measuring head dynamics and kinematics. The sensor insert includes at least one sensor embedded in the insert. The insert is configured to fit relatively substantially immovably within a portion of a user's external auditory canal passing through the temporal bone. A system including the sensor and insert further includes an electronic data collection and processing unit connected to the sensor. A method of measuring head dynamics and kinematics involves use of the aforementioned system to detect and collect data measuring head dynamics and kinematics of a user's skull for analysis thereof.

Abstract: The disclosed technique relates to an insert for footwear and to a composite orthotic insole comprising said insert, wherein the insert is embedded with a plurality of force (or pressure) sensors, and may be used to provide feedback on important information regarding the wearer's gait biomechanics. The layer of sensors may be used to assist in monitoring the wearer's health via foot pressure tracking. The insole can use a relative large number of sensors, which together provide broad coverage of the human foot impact area.

Abstract: A biomarker detector used to detect and notify a user of a biological substance. More specifically, a biomarker detector coating layered on a surgical instrument that enables a user of the surgical instrument to know when a critical bodily fluid, such as cerebrospinal fluid, or critical tissue, such as nerve tissue, has been reached by the surgical instrument, thereby allowing the user to react accordingly and avoid iatrogenic injury.