Abstract: The present disclosure relates generally to systems and method for testing and determining corrective lens prescription for a patient. In an example embodiment, a method includes using a hand-portable first electronic device, a second electronic device with a computerized screen, and a server to conduct a vision test for a person. The vision test includes determining, an axis prescription, a cylinder prescription, and a sphere prescription for each eye of the person. A corrective lens prescription is provided for the person based, at least in part, on the determined axis, cylinder, and sphere prescription for each eye of the person.

Abstract: An image processing apparatus that processes a tomographic image generated by using tomographic signals acquired by subjecting a subject to optical coherence tomographic imaging, includes an acquiring unit configured to acquire the tomographic signals, and a generation unit configured to generate a tomographic image based on a representative value in each pixel position of the tomographic image, generated by using the tomographic signals, the generation unit includes a region determination unit configured to determine a target region where contrast is reduced in the tomographic image, by using tomographic signals, and an estimation unit configured to estimate an estimation value, by performing statistical processing on tomographic signals corresponding to a pixel position of the tomographic image out of the tomographic signals, and the generation unit generates the tomographic image with the estimation value as the representative value in the target region.

Abstract: A system and method for ophthalmic surgery in which a light field camera is used to capture a digital image of the surgical field including the eye. The digital image is used to create image information and directional information, which is then used to from a three dimensional (3D) image with motion parallax.

Abstract: An ophthalmic technician is present with a patient in an exam room to operate eye examination equipment and transmit patient information to remote location. At that remote location, a skilled technician is present to provide the necessary optical care, and may operate the phoropter from the remote location. Using video and/or teleconferencing equipment and a phoropter located in the patient examination room along with management software, the system works to determine the final optical prescription for the patient. That information, coupled with findings from other devices which are integrated with the management software, and that the patient uses locally, are reviewed by a remote-based optometrist or ophthalmologist.

Abstract: A physiological monitoring system comprising a sensor device for attachment to the skin of a subject, the sensor device comprising at least a first sensor for sensing a physiological parameter of the subject and a processing device configured for analysing data sensed by the sensor by means of a predetermined algorithm to estimate whether the data is indicative of a disease condition, and on detecting such a condition to generate an alert. It is further described a method for monitoring a plurality of subjects comprising the step of providing each subject with a sensor device as referred to above and then analysing data sensed by the sensors such as to preferentially generate an alert if the data received from multiple ones of the sensors demonstrate a contemporaneous trend indicative of a disease condition.

Abstract: An apparatus for determining at least one physiological parameter includes a carrier and one or more semiconductor components. At least one of the semiconductor components includes a sensor for sensing a physiological parameter. A first antenna may be attached to at least one of the one or more semiconductor components.

Abstract: A telemedicine cart includes a body with casters mounted underneath, a monitor mounted to the body, and a power supply connection coupled to the monitor. The body includes a cabinet with a hinged door for access to the interior of the cabinet when opened. A screen on the monitor has a portrait orientation and is disposed above the cabinet, in a vertical plane perpendicular to the bottom of the cabinet. The screen is longer than it is wide. The screen is longer than a height of the cabinet beneath the screen. A video of a vertically upright person displayed on the screen, will appear to be at or near an average standing height of adults to a user in front of the screen, and will appear to be life-sized or near life-sized to the user.

Abstract: An optical sensor based on CMOS technology including a semiconductor substrate; an array of photocells, each of which includes a respective photodetector active area that is formed in and exposed on a given planar surface of said semiconductor substrate; a multilayer structure that includes metal and dielectric layers and is formed on the given planar surface; and light shielding means formed in or on the multilayer structure; wherein each photodetector active area is associated with a corresponding optical path extending through the light shielding means and directed towards said photodetector active area. All the photocells are connected in parallel to provide an overall output electrical signal related to incident light impinging on the photodetector active areas. All the optical paths are parallel to a given direction thereby causing all the photodetector active areas to be reached by incident light with incident direction parallel to said given direction.

Abstract: Described herein are apparatuses and methods for confocal 3D scanning. The apparatus can comprise a spatial pattern disposed on a transparent base and a light source configured to provide illumination to the spatial pattern and an optical system comprising projection/imaging optics having one or more lenses and an optical axis. The projecting/imaging optics may be scanned to provide depth scanning by moving along the optical axis.

Abstract: Method, and the associated device, for examining a biological tissue, in particular dental tissue or tooth enamel of one or several teeth, the method including the steps of taking into account at least the fluorescence of the tissue detected in a first wavelength range and the fluorescence of the tissue detected in a second wavelength range. The device can be a surgery microscope with one or several filters. The filters can be swivelled into or out the illumination beam path or the optical path of the light source of the device.

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: A catheter system for optical coherence tomography includes an elongate catheter body, an optical fiber in the elongate catheter body, and an anamorphic lens assembly coupled with a distal end of the optical fiber. The optical fiber and the lens assembly are together configured to provide a common path for optical radiation reflected from a target and from a reference interface between the distal end of the optical fiber and the lens assembly.

Abstract: An image processing apparatus, comprises an image acquiring unit that acquires a plurality of object images captured by imaging an object for a plurality of times; a shape acquiring unit that acquires shape information, which is information representing a shape of the object; an image dividing unit that divides each of the plurality of object images into at least two partial images, based on the shape information; and an image registering unit that registers the divided partial images.

Abstract: An object information acquiring apparatus, comprises a signal acquiring unit that acquires a signal obtained by converting an acoustic wave generated from an object; an information acquiring unit that performs, on the signal, a signal process including at least any of an input impedance matching process, a filtering process, an amplification process, a subtraction process, and a signal extraction process, and acquire characteristic information inside the object using the processed signal; and a form acquiring unit that acquires form information of the object, wherein the information acquiring unit determines, based on the form information, contents of the signal process to be performed on a signal corresponding to a target region.

Abstract: A biological information imaging method includes a first measurement step to measure an acoustic wave (54) generated by light (53) with which a living body (51) is irradiated from a light source (50) and which is absorbed by tissue (52) in the living body, a storage step to store first information obtained in the first measurement step, a second measurement step to measure an acoustic wave (54) generated by light (53) with which the living body (51) is irradiated from the light source (50) and which is absorbed by the tissue (52) in the living body, and a processing step to generate an image of information of the tissue in the living body by using second information obtained in the second measurement step, and the first information stored in the storage step.

Abstract: A subject-information acquisition apparatus includes a light source; a holding member configured to hold a subject so as to surround the subject; at least one transducer configured to receive an acoustic wave generated by irradiating the subject with light from the light source; and a signal processing unit configured to obtain distribution information using a received signal output from the transducer. The holding member includes a marker that absorbs the light and generates an acoustic wave.

Abstract: This instant disclosure provides an auxiliary thermometer being adapted for measuring a human body temperature between an arm and a trunk of a human body including a carrying module, a temperature measurement module, a control module and a fixed structure. The temperature measurement module includes a first temperature measurement unit disposed on the carrying module and a second temperature measurement unit opposite to the first temperature measurement unit and correspondingly disposed on the carrying module. The control module is disposed on the carrying module and electrically connected to the first temperature measurement unit and the second temperature measurement unit. The carrying module is disposed on the fixed structure to be disposed on the arm or the trunk of the human body.

Abstract: The present invention provides devices and methods for measuring the temperature distribution of an eye using non-invasive techniques. Embodiments of the present invention utilize laser speckle cross-correlation to determine the thermal distribution of an eye.

Abstract: In one embodiment, a temperature sensor includes an optical waveguide having a distal tip and a thermochromic sensing element mounted to the distal tip of the optical waveguide, wherein light transmitted through the optical waveguide to the distal tip is reflected back from the thermochromic sensing element and wherein the reflected light provides an indication of a local temperature at a location of the thermochromic sensing element.

Abstract: A blood pressure and cardiac monitoring system includes a sensing assembly, processor, memory, communication interface, and any suitable computer implemented modules communicatively coupled to each other via a bus. The sensing assembly comprises a first, second, and third sensor. The first sensor is located at a first axis of a target generating a first time-dependent motion waveform representative of one or more contractile properties of the target's heart, and the second sensor is located at a second axis of the target generating a second time dependent motion waveform representative of the target's blood flow. The processor is configured to receive the first waveform and the second waveform, and to determine a first time difference between a vital sign present in the first waveform and the second waveform.

Abstract: The present technology relates to an information processing device, an information processing method, and a program for enabling continuous measurement of information in a body. The information processing device includes: a light emitting unit that emits light of a predetermined wavelength; an imaging unit that captures reflected light from an object; an analysis unit that analyzes an image captured by the imaging unit; a storage unit that stores an analysis result analyzed by the analysis unit; a communication unit that transmits the analysis result stored in the storage unit to another device; and a battery unit that generates and stores power to supply electric power to each unit, and the information processing device is embedded in a body to operate. The light emitting unit emits beams of light of different wavelengths.

Abstract: A pulse wave detecting device is to be used while being attached to a wrist of a subject. The pulse wave detecting device includes a housing which accommodates a pulse wave detection sensor for detecting a pulse wave from a radial artery, the housing includes: a first housing portion; and a second housing portion which is lower in rigidity than the first housing portion, the pulse wave detection sensor is accommodated in the first housing portion, and a region of the housing is configured by at least the second housing portion, the region being contacted with a styloid process of a radius of the wrist in a state where the housing is attached to the wrist.

Abstract: A pulse wave detecting device includes a housing accommodating a pulse wave detection sensor and to be wound along a circumferential direction of a wrist. The housing includes: a back-side portion to be wound around a back side of a hand; and a palm side portion to be wound around a palm side of the hand. In an attachment state, a position in a direction of a part: which is in a hand side end portion that is an end portion of the housing, the end portion being on a side of the hand in the direction; and which constitutes the back-side portion, is closer to an arm than a position in the direction of a part: which is in a portion that constitutes the palm side portion; and which is closest to the side of the hand, the direction being perpendicular to the circumferential direction.

Abstract: A pulse wave detecting device includes: a pressure pulse wave detector which is configured to press a pressing surface in which a pressure detecting element is formed, against a radial artery under a skin of a wrist of a subject, and which is configured to detect a pressure pulse wave from the radial artery; and a housing which accommodates the pressure pulse wave detector in a state where the pressing surface is exposed toward the wrist. The housing is configured so that a compression pressure which is exerted by the housing in an attachment state where the housing is attached to the wrist, and which is applied onto the radial artery is smaller than a compression pressure which is exerted by the pressing surface in the attachment state, and which is applied onto the radial artery.

Abstract: Particular embodiments described herein provide for a wearable electronic device, such as a bracelet, coupled to a plurality of electronic components (which may include any type of components, elements, circuitry, etc.). One particular implementation of a wearable electronic device may include a plurality of sensors configured to measure at least one health parameter of a first user associated with the wearable electronic device, and a control module in communication with the plurality of sensors. The control module includes a processor configured to receive a plurality of health parameter measurements from at least a subset of the plurality of sensors, and determine a general health state of the first user based upon the received health parameter measurements.

Abstract: A system comprises a risk analysis module and a worsening heart failure (WHF) detection module. The risk analysis module measures at least one first physiological parameter of a subject using a physiological sensor of an ambulatory medical device, and determines a heart failure (HF) risk score for the subject according to the at least one measured first physiological parameter. The HF risk score indicates susceptibility of the subject to experiencing a HF event. The WHF detection module measures at least one second physiological parameter of the subject using the same or different physiological sensor, and generates an indication of prediction that the subject will experience a WHF event when the at least one second physiological parameter satisfies a WHF detection algorithm. The risk analysis module adjusts generation of the indication by the WHF detection algorithm according to the determined HF risk score.

Abstract: A system for screening for Peripheral Artery Disease (PAD), including a plurality of instruments for measuring presence of blood flow derived physiological parameters, a data collection unit attached to each one of the instruments for receiving signals from each one of the instruments, and a data analysis unit for determining a likelihood of presence of PAD based, at least in part, on the received signals. Related apparatus and methods are also described.

Abstract: A biological information measurement apparatus includes: a pressure sensor including a pressure detecting element; a pressing mechanism which presses the pressure sensor against an artery in a living body; a press controller which controls a pressing force of the pressing mechanism; a blood flow sensor; a blood flow information measurer which measures blood flow information based on output of the blood flow sensor; a pressing force decider which decides a first pressing force based on blood flow information measured during a pressing force control time period when the pressing force is changed in one direction, and information of a pressure pulse wave detected during the pressing force control time period; and a record controller which records a pressure pulse wave detected in a first state where the pressing force is controlled to the first pressing force, and blood flow information measured in the first state.

Abstract: A blood pressure measuring apparatus includes: a triaxial acceleration sensor; an information output section which outputs information for guiding an arm of the person on which the blood pressure measuring apparatus is worn, to a pair of a first posture and a second posture between which a position of the wrist is different; a posture determiner which determines that the arm has been in each of the pair of the postures, based on an output signal of the triaxial acceleration sensor after the output of the information; and a physical feature information calculator which calculates physical feature information of the person based on moving acceleration information detected by the triaxial acceleration sensor in a period between when the arm is in one of the pair of the postures and when the arm is in the other of the pair of the postures.

Abstract: The object of the present invention is to disclose a novel optical miniaturized handheld medical device for convenient monitoring and/or data collection of detailed signals on human cardiovascular function. The implementation consists of a number of advanced technologies, including interferometric detection, phase controlled focusing beam steering, auto-tracking scheme and algorism, and integrated optical chip assembly to enhance the device's performance and miniaturization. Briefly, this handheld medical device directs a single or dual output laser beam(s) onto certain skin surface to detect the surface vibration velocity at the point where the laser hits the surface. The skin surface vibrates in response to cardiovascular signals, such as blood pressure pulses, turbulent blood flow through narrowed arteries, pumping actions of the heart, or the closure of the heart valves etc.

Abstract: A detecting apparatus and a detecting method for physiological information are provided. The detecting apparatus includes a first optical signal provider configured to provide an organism with a first optical signal, a signal receiver configured to receive the first physiological signal, and a processor. The first optical signal, after interacting with the organism, turns into a first physiological signal. The processor is configured to calculate a plurality of physiological information values of the organism according to the first physiological signal; determine whether or not any of the physiological information values is abnormal; and replace the abnormal physiological information value with a physiological information reliable value when there is the abnormal physiological information value.

Abstract: The present disclosure relates to a device, method and system (100) for calculating, estimating, or monitoring the physiological parameters of a subject. At least one processor, when executing instructions, may perform one or more of the following operations: receiving a first signal representing a pulse wave relating to heart activity of a subject, receiving a plurality of second signals representing time-varying information on the pulse wave, determining a blood oxygen level of the subject based on the plurality of second signals, identifying a first feature in the first signal, identifying a second feature in one of the plurality of second signals, computing a pulse transit time based on a difference between the first feature and the second feature, calculating a blood pressure of the subject based on the pulse transit time.

Abstract: A light emitting device includes a light emitting element that emits light, and a wiring substrate that includes a light reflective reflecting electrode to which the light emitting element is bonded using a bonding material. The reflecting electrode has a reflecting region which reflects light emitted from the light emitting element. An area of a mounting region surrounded by an outer circumference of the reflecting region is greater than an area of the light emitting element by four times or more seen in a direction perpendicular to the wiring substrate.

Abstract: This document discusses, among other things, apparatus, systems, and methods to determine a first atrial fibrillation (AF) indication using received information about a heart over a first period, to cluster depolarization information about the heart over the first period, and to discriminate between an atrial fibrillation (AF) event and a non-AF event in the first period using the determined first AF indication the clustered depolarization information.

Abstract: A method to update reference verification information used for electrocardiogram (ECG) signal verification includes: identifying a first ECG signal measured from a user; verifying the first ECG signal by comparing a second ECG signal included in a reference ECG signal set with the first ECG signal; in response to the first ECG signal being successfully verified, setting the successfully verified first ECG signal to be a third ECG signal, and adding the third ECG signal to a verified ECG signal set; and updating the reference ECG signal set by setting the third ECG signal added to the verified ECG signal set to be an additional second ECG signal, based on the reference ECG signal set and the verified ECG signal set.

Abstract: An electrophysiologic catheter with a distal electrode assembly carrying very closely-spaced bipole microelectrodes on a plurality of divergent spines that can flexibly spread over tissue surface area minimized detection of undesirable noise, including far-field signals. Each spine has a flexible microelectrode panel having a substrate, at least one pair of microelectrodes, a trace for each microelectrode, and a soldering pad. Adjacent microelectrodes of a bipole pair are separated by a space gap distance ranging between about 50-300 microns. Each microelectrode may have a width of about 200 or 300 microns.

Abstract: A wearable biometric measurement device includes a ring body having interior and exterior surfaces, an electrocardiogram component including first and second electrodes wherein a single lead electrocardiogram is formed upon contact with the first electrode and the second electrode, a pulse oximeter component including a light emitter and a photodetector wherein the photodetector receives one or more signals transmitted by the light emitter, and a communication component. A system for measuring and processing biometric data includes a wearable biometric measurement device, a monitor device, and a server. A method for measuring biometric data using a wearable biometric measurement device includes pre-processing biometric signals, feature extraction on the signals, and event prediction with respect to the signals.

Abstract: The invention relates to polymer compositions including a polymer matrix in which are dispersed carbon nanotubes and adsorbent elements selected from activated carbon particles and graphene nanoplatelets, as well as electrodes including such compositions and electrical circuits and devices including the electrodes.

Abstract: Apparatus, system, and computer readable media determine the probability of visual recognition of an image by a subject using electroencephalography (EEG) corresponding to a Visual Evoked Potential (VEP). The apparatus comprises means for presenting a series of visual stimuli corresponding to said image to evoke EEG signals. The visual stimuli of the image are presented in an orientation sequence based on a timing cycle. At least one prism is provided for placement in front of the series of visual stimuli corresponding to said image. The EEG signals evoked in response to said visual stimuli and said prism placed in front of said visual stimuli are recorded and processed by a processor. VEP is generated corresponding to the presence of a shift and thereby provides object statistic reliability of the visual recognition of the image by the subject.

Abstract: A method and system to obtain and process data indicative of muscle reflexes for screening and/or diagnosing a patient with a brain injury or spinal cord injury, and especially for obtaining and processing data indicative of reflexes from the bulbospongiosus muscle. Certain embodiments employ a novel electromechanical probe for stimulating the bulbospongiosus muscle to identify a time of the stimulation so that electrical responses from electrodes on the patient's skin can be identified for analysis.

Abstract: Systems, devices and methods for control of a prosthetic or orthotic device (POD) based on electromyography (EMG) signals are described. The POD may be a lower or upper limb POD having one or more joints. One or more EMG sensors may detect the EMG signals. The EMG sensors may be external, subcutaneous, intraperitoneal, epimysial, intramuscular, or other types. Control of the POD may be based on EMG and non-EMG signals, such as velocity, acceleration, position, force, etc. Voluntary and/or automatic control may be implemented, for example with voluntary muscle contractions and/or data based on velocity, acceleration, position, force, etc. In some embodiments, the neutral position of an ankle POD is adjusted based on EMG signals.

Abstract: A system and method for automating an appropriate voxel prescription in a uniquely definable region of interest (ROI) in a tissue of a patient is provided, such as for purpose of conducting magnetic resonance spectroscopy (MRS) in the ROI. The dimensions and coordinates of a single three dimensional rectilinear volume (voxel) within a single region of interest (ROI) are automatically identified.

Abstract: Disclosed is a sensor for measuring skin conductivity and a method of manufacturing the same, wherein the sensor includes: a base board made of a flexible material; an electrode provided on a surface of the base board, and transmitting an electrical signal; and an uneven structure provided on the electrode, and configured to increase an electrical contact area with skin via sweat secreted onto a surface of skin.

Abstract: A calorimetric performance monitoring system includes an analyzer that is fluidly connected to an in-stream respiration flow sensor. The system includes a controller that is configured to determine a flow rate of respiration flow and at least a portion of a composition of the respiration flow on a breath-by-breath basis and temporally associate the respiration flow value and the determined portion(s) of the composition of the respiration flow and segregate non-steady state respiration performance data from steady state respiration performance data and determine a calorimetric performance from the steady state respiration performance data.

Abstract: A method is provided for identification of an increase in the gas volume of the lung caused by the inability of a patient to expire completely, known as dynamic hyperinflation or gas trapping.

Abstract: Methods and systems for monitoring metabolic parameters of humans and other animals in an enclosed or semi-enclosed space such as a room. In these embodiments, metabolic parameters like basal metabolic rate, energy expenditure, and body composition are derived from environmental measurements of carbon dioxide (CO2) production using context-aware processing algorithms. This information can be integrated in innovative coaching programs for weight management, fitness improvement, pregnancy management, and chronic disease management.

Abstract: A gas flow-focusing device (FFD) may include a cylindrical body that may include a funneling part to receive exhaled CO2-enriched air, and a CO2 sampling part. The CO2 sampling part and the funneling part are in fluid flow communication. The CO2 sampling part may include a CO2 sampling chamber to accept the CO2-enriched air, and a CO2 sampling tube to sample the CO2-enriched air. The funneling part and the CO2 sampling part may structurally form between them a ring-shaped gas chamber to contain a pressurized propellant gas, and a hollow channel in order to channel the pressurized propellant gas from the gas chamber to the CO2 sampling chamber. The gas chamber may include a gas intake opening through which propellant gas may fill the gas chamber. A PFC may include two FFDs for sampling CO2, and a plurality of apertures for providing, there through, oxygen.

Abstract: A system and method of characterizing a blood vessel. An imaging modality is utilized to take an image of the blood vessel that is under a first stimulated condition and an image of the blood vessel is under a second stimulated condition. The first and second images of the blood vessel are then compared to one another to determine stress and strain data of the blood vessel in order to characterize the blood vessel.

Abstract: There is provided a method of determining the orientation of an accelerometer that is being carried or worn by a user, the method comprising measuring acceleration using the accelerometer as the user moves; processing the measured acceleration to determine a step frequency of the movements by the user; and processing the measured acceleration to identify a lateral component of acceleration as a component of acceleration having a high response at a frequency corresponding to half the step frequency.

Abstract: A system includes a plurality of conformal sensors and a central controller. Each conformal sensor includes a processing portion and an electrode portion. The electrode portion is configured to substantially conform to a portion of an outer skin surface of a subject and to sense electrical pulses generated by muscle tissue of the subject. The sensed electrical pulses are transmitted from the electrode portion to the processing portion as raw analog signals for onboard processing thereof by the processing portion of the conformal sensor. The processing portion is configured to create digital signals representative of the raw analog signals. The central controller is coupled to each of the plurality of conformal sensors and is configured to receive the digital signals from each of the plurality of conformal sensors.