Abstract: Embodiments include methods, systems and computer program products for monitoring a person for a traumatic brain injury. Aspects include monitoring a gait of the user with one or more accelerometers embedded in the uniform and analyzing, by a processor, one or more characteristics of the gait of the user. Aspects also include determining whether the one or more characteristics of the gait indicate that the user may have suffered the traumatic brain injury and creating an alert that the user of the helmet may have suffered the traumatic brain injury.

Abstract: A flexible probe has an assembly in its distal end that includes a transmitter and a receiver that receives signals from the transmitter for sensing a position of the receiver relative to the transmitter. A pair of flat spring coils disposed between the transmitter and the receiver deform in response to pressure exerted on the distal tip when the distal tip engages a wall of a body cavity.

Abstract: Embodiments include methods, systems and computer program products for monitoring a person for a traumatic brain injury. Aspects include monitoring a gait of the user with one or more accelerometers embedded in the uniform and analyzing, by a processor, one or more characteristics of the gait of the user. Aspects also include determining whether the one or more characteristics of the gait indicate that the user may have suffered the traumatic brain injury and creating an alert that the user of the helmet may have suffered the traumatic brain injury.

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

Abstract: According to an embodiment of the present invention, a physical monitoring device is in the form of a necklace or pendant and includes an object (e.g., stone, gem, glass, crystal, or other transparent or translucent object that conveys light signals or color). The physical activity monitoring device includes one or more sensors to measure physical activity or motion of the user (e.g., steps, distance traveled by foot, body motion, etc.). The object is illuminated or changed to different colors to openly and outwardly indicate a level of physical activity of the user.

Abstract: A pressure sensor, e.g. for being arranged in the sole structure of an article of footwear, for measuring a pressure exerted by the wearer's foot. The pressure sensor has one or more pressure-sensing cells. Each cell has a first flexible carrier film and a second flexible carrier film, the first and second carrier films being attached to one another by a spacer film having an opening, a plurality of first electrodes arranged on the first carrier film and a plurality of second electrodes arranged on the second carrier film. The plurality of first electrodes has a first group of electrodes and a second group of electrodes. The first and second groups of electrodes are arranged so as to interdigitate with delimiting gaps there between. One or more electrically insulating overprints are arranged on the first carrier film so as to cover the gaps.

Abstract: Systems, methods and devices for recognizing user activity using data from accelerometer or other sensors. “Feature-based” approach and “model-based” approaches are described. In a feature-based approach, various values are extracted from input signals and projected onto a space that is selected to facilitate better segregation of data points. Classifiers identify the regions in this projected space in which the data points fall to distinguish between the different activity types. In a “model-based” approach, a generative model is trained for each activity type. Different activity types can be distinguished by identifying similarities between the input data with the generative models.

Abstract: Methods and devices for measuring the size of a body lumen and a method for ablating tissue that uses the measurement to normalize delivery of ablational energy from an expandable operative element to a luminal target of varying circumference are provided. The method includes inserting into the lumen an expandable operative element having circuitry with resistivity or inductance that varies with circumference of the operative element, varying the expansion of the operative element with an expansion medium, measuring the resistivity of the circuitry, and relating the resistivity or inductance to a value for the circumference of the operative element. In some embodiments the sizing circuit includes a conductive elastomer wrapped around the operative element. Other embodiments apply to operative elements that include an overlapping energy delivery element support in which the overlap varies inversely with respect to the state of expansion, and electrodes that sense the amount of the overlap.

Abstract: A blood pressure measurement system is provided that includes an inflatable cuff, a valve assembly and chamber assembly. The chamber assembly can house a gas canister for providing gas to the inflatable cuff. The valve assembly can include a valve having a high pressure cavity, a low pressure cavity, and a channel providing a gas pathway between the high pressure cavity and the low pressure cavity. The valve assembly can further include a channel cover and spring in the high pressure cavity. The spring can exert a force on the channel cover to create a seal between the high pressure cavity and the channel. The valve assembly can further include a rod extending through the channel and exerting a force on the channel cover to create a gas pathway between the high pressure cavity and the channel.

Abstract: A patient support system includes a patient support apparatus having a base frame and a patient support surface. A network includes one or more of such patient support systems and an associated computer device. The patient support system includes: at least one sensor configured to detect at least one patient characteristic; at least one light emitting device capable of emitting light in at least a first range of visible wavelengths; and a controller configured to: receive the or each output from the at least one sensor; determine a stage of sleep of a patient on the patient support surface; receive a wake-up signal; and after receipt of the wake-up signal, activate the or each light emitting device to emit light substantially only in the first range of visible wavelengths when the controller next determines that the patient is in a light stage of sleep. The associated computer device is configured to carry out a patient wake-up process.

Abstract: A wearable, wireless and battery-free continuous health monitor includes an RFID tag used as an On-Off Keying Device to measure the heart rate. The tag's returned signal strength variations are used to calculate the respiration rate. Machine learning algorithms are employed to determine the health parameters.

Abstract: The present invention relates to a device (10) for detecting a circadian phase shift of a user (48). The device comprises: an interface for obtaining a skin conductance signal of the user (48) and sleep cycle information of the user (48); a processing unit (14) for determining an internal clock wake-up time based on the obtained skin conductance signal (20) and an external clock wake-up time based on the obtained sleep cycle information; and an evaluation unit (16) for evaluating a circadian phase shift of the user (48) based on the internal clock wake-up time and the external clock wake-up time. The present invention further relates to a corresponding method as well as to a wearable system (22) for monitoring a circadian phase shift of a user (48).

Abstract: A brain-machine interface apparatus and a method of the same are provided. To elaborate the brain-machine interface apparatus may include a display where a plurality of light-emitting points (or lines) flickering with their individual set frequencies are arranged a flickering controller that divides the plurality of the light-emitting points (or lines) into a plurality of groups, and sets the set frequencies for the groups; an EEG measurement unit that detects EEG signals of a user who watches the display without gaze-shift; a frequency detector that detects one or more (their harmonic or combination) frequency components from the measured EEG signals; a shape analysis unit that decodes an originally intended shape according to the user's imagination based on the one or more detected frequency components and the set frequencies; and a result output unit that outputs information of the embodied originally intended shape.

Abstract: A pedicle access system including a cannula, a stylet, and a removable T-handle. The pedicle access system may be used to percutaneously approach the pedicle, initiate pilot hole formation, and conduct a stimulation signal to the target site for the purposes of performing a pedicle integrity assessment during the pilot hole formation. To do this, the cannula and stylet are locked in combination and inserted through an operating corridor to the pedicle target site, using the T-handle to facilitate easy movement and positioning of the cannula/stylet combination. A stimulation signal may be applied during pilot hole formation to conduct the pedicle integrity assessment. In a significant aspect, the T-handle may be detached from the cannula/stylet combination to facilitate the use of various surgical tools as necessary.

Abstract: Methods and systems relate to determining sensory motor performance based on user non-postural movements within a generated dynamic virtual environment. The generated environment requires users to: (i) utilize primary sensor inputs (e.g., vision, vestibular sensation and somatosensation); (ii) assess the dynamic virtual environment; and (iii) integrate and translate those inputs into movement to control the dynamic virtual environment. The methods may include receiving non-postural user input with respect to a state of one or more attributes of a dynamic virtual environment provided on a user interface for one or more sessions, the one or more attributes including a control object and a target which moves with respect to the control object; determining performance information based on the user input and the state of the one or more attributes for the one or more sessions; and determining sensory motor performance information from the performance information.

Abstract: A system, device and methods for quantitatively monitoring and evaluating changes in water and hemoglobin content in the brain in a non-invasive manner are provided. The system may be used for real-time detection and monitoring of brain edema and/or for an assessment of cerebral autoregulation.

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: A sensor guide wire for an intravascular measurement of a physiological variable in a living body, may comprise a proximal tube portion; a distal end portion; and a sensor element configured to measure the physiological variable based on exposure to fluid in the living body. The sensor guide wire may further comprise a mounting structure supporting the sensor element in a freely suspended manner in a lumen within the sensor guide wire and/or a cylindrical-shaped jacket forming an interior space housing the sensor element and extending from a distal end of the proximal tube portion to a proximal end of the distal end portion in which the outer circumferential wall of the jacket includes a plurality of slots located between at least one aperture of the outer circumferential wall and one of the distal and proximal ends of the jacket.

Abstract: A lower limb spasticity measurement method includes the step of setting the lower limbs of the person in a lower limb orthotic device of a gait activity machine, the step of starting up a motor of the gait activity machine to drive the lower limb orthotic device for lower limb activity, the step of getting a statistical distribution data from the output torque of the motor within a predetermined time and then calculating the statistical distribution data to obtain a threshold, and the step of determining whether the output torque of the motor is greater than the threshold or not, and then stopping motor if the output torque of the motor is greater than the threshold. Thus, the method of the invention can accurately measures spasticity in the lower limbs of a person without the use of sensors, effectively saving the cost of equipment.

Abstract: A device for measuring eye movement in a human subject, the device having a housing, at least one stimulator mounted to the housing, and a sensor. The at least one stimulator is configured to provide stimulus to one or both eyes of the subject. The sensor is configured to collect information related to movement of one or both eyes of the subject. The device also includes a user interface that is configured to control the at least one stimulator and display information collected by the camera.