Abstract: A medical device reduces the risk of operating room fires caused by light sources by shielding the illuminated light cable from directly interacting with surgical drapes or patient skin. The device includes a silicone housing that mates circumferentially over existing endoscopic light cables and a thermal insulator can be positioned over the light emitting tip of the cable.

Abstract: The present disclosure relates to a vaginal speculum comprising a vaginal assembly comprising at least two longitudinal separating elements connected at a distal end for insertion into the vagina of a subject. The vaginal speculum is configured for holding the vaginal walls of the subject apart, thereby permitting examination and/or suturing of at least the posterior part of the vaginal tissue. The present disclosure further relates to a set of vaginal specula comprising a number of specula according to the fist aspect of the invention, wherein said specula are provided in predefined sizes such that the specula suitably fit a range of anatomies. The present disclosure also relates to a method for providing an unobstructed view of at least the posterior part of the vaginal wall during suturing of a subject after said subject has given birth.

Abstract: An ophthalmic device that includes an image capturing unit configured to capture a tomographic image of a crystalline lens of a subject eye; a processor; and a memory storing computer-readable instructions therein. The computer-readable instructions, when executed by the processor, may cause the processor to execute: detecting a boundary between tissues in a tomographic image of the crystalline lens of the subject eye captured by the image capturing unit; determining whether the tissues defined by the boundary include an abnormality; and analyzing an analysis item associated with the abnormality.

Abstract: An OCT apparatus includes an OCT optical system that acquires an OCT signal based on measurement light applied to a subject and reference light, and a processor. The processor controls the OCT optical system based on a predetermined trigger to execute an imaging sequence in which a plurality of temporally different OCT signals are acquired in each of a first region on a subject and a second region adjacent to or partially overlapping with the first region, and imaging conditions are different from each other between the first region and the second region. The processor obtain OCT motion contrast data of the subject based on the plurality of OCT signals acquired through the imaging sequence in the first region and the second region.

Abstract: Methods and apparatus are provided for optical coherence metrology or tomography across an extended area of an eye with improved registration. At least two optical coherence tomograms are acquired, with each tomogram containing data from regions of an anterior surface of the eye that are at least partially overlapping, and data from one or more deeper structures such as the retina or the anterior or posterior lens surfaces. The tomograms are then processed to register the data from the overlapping portions of the anterior surface regions, thereby registering the data from the deeper structures. In certain embodiments the reference arm of the apparatus comprises a compound reflector having at least two axially separated reflective surfaces for applying differential delays to different portions of the reference beam. The depth of field of the apparatus is thereby extended to enable measurement of eye length.

Abstract: A measuring device according to one aspect of the present disclosure projects a measuring light toward a fundus of a subject's eye; receives a reflected light reflected from the fundus; and then measures an eye refractive power of the subject's eye based on a light-receiving signal. Additionally, reliability of a measured value is determined. Specifically, a process, in which the eye refractive power is measured based on the light-receiving signal, is consecutively executed an undetermined number of times until an end condition is satisfied. The measured value of the eye refractive power obtained in every execution of the process is displayed on a display together with information indicating the reliability of the measured value.

Abstract: Provided is an ophthalmic measurement device with which it is possible to obtain an area in which a measurement can be taken without moving an optical system. With reference to an optical path length of an illumination optical system with which light is focused on the eyeground when the refraction value is 0 D, the positions of two light sources are set to achieve a setting in which the optical path length becomes slightly shorter. By doing so, it is possible to cope with measurement of refractive properties in a large area without employing structures that allow a lens system of the illumination optical system and the light sources thereof to be moved. In addition, by selecting one of the two light sources so that a clearer Hartmann image can be obtained, it is possible to further increase the precision of the refractive properties to be measured.

Abstract: According to an ophthalmological apparatus of an embodiment example, a light beam projecting system includes an optical scanner and projects a light beam onto an eye fundus. A fixation system projects fixation light onto the eye fundus. A photographing device captures a moving image of the eye fundus onto which the fixation light is being projected, to acquire a front observation image. An analyzing circuitry analyzes the front observation image to specify the position of a predetermined site of the eye fundus. A controlling circuitry controls at least one of the fixation system and the optical scanner based on the positional relationship between the position of the predetermined site specified by the analyzing circuitry and a projection target area of the light beam from the light beam projecting system.

Abstract: According to an embodiment of the present disclosure, there is provided a retina photographing apparatus including: a body unit including a case providing an outer appearance of the retina photographing apparatus, and a holder connected to the case and being mountable on an examinee's head; a retina photographing unit installed inside the case, and configured to irradiate light onto a retina of the examinee's left or right eye and to detect the light reflected from the retina to acquire an image of the retina; and a driving unit configured to move a position of the retina photographing unit inside the case in order to photograph both of the examinee's eyes.

Abstract: Various examples related to power sources for implantable sensors and/or devices are provided. In one example, a device for implantation in a subject includes circuitry for sensing an observable parameter of the subject and a power source comprising a nanowired ultra-capacitor (NUC), the power source having a volume of 10 mm3 or less. The NUC can have a surface capacitance density in a range from about 25 mF/cm2 to about 29 mF/cm2 or greater. Such devices can be used for, e.g., ocular diagnostic sensors or other implantable sensors that may be constrained by size limitations.

Abstract: A secure medical device system (30; 30?) includes a computer processing device (42) that includes a processor, memory in communication with the processor, an interface enabling communication between the processor and a diagnostic test unit (40; 40?), a first wireless access point (48A), computer-readable instructions stored in the memory and executable by the processor providing a locally-served web site (46) that is browser accessible over the first wireless access point, and a second wireless access point (48B) operable concurrently with and independent from the first wireless access point. The locally-served web site is adapted to receive control instructions over the first wireless access point and to generate command signals transmittable over the interface to the diagnostic test unit, and the second wireless access point enables communication between the processor and an external network (36).

Abstract: The present invention relates generally to systems and methods for measuring an analyte in a host. More particularly, the present invention relates to systems and methods for transcutaneous measurement of glucose in a host.

Abstract: A method comprises establishing communication between a therapy device implantable in a patient and a consumer electronic device operable by the patient. The method comprises controlling, by the consumer electronic device, a predetermined set of therapy device functions in response to patient inputs to the consumer electronic device. The method also comprises transmitting therapy data from the therapy device to the consumer electronic device. The method further comprises presenting therapy data on a display of the consumer electronic device.

Abstract: A system and method are provided for non-invasively assessing neuro-inflammation in a subject. The method includes acquiring neurite orientation dispersion and density imaging (NODDI) data of the subject and processing the NODDI data to determine an orientation dispersion index (ODI) component of the NODDI data. The method also includes assessing the ODI component against one of a reference of neuro-inflammation or a prior ODI component acquired from the subject to determine one of an acute assessment or a chronic assessment of neuro-inflammation in the subject. The method further includes generating a report indicating the one of an acute assessment or a chronic assessment of neuro-inflammation in the subject.

Abstract: An embodiment in accordance with the present invention provides a new acquisition scheme for T2-weighted BOLD fMRI. It employs a T2 preparation module to induce the BOLD contrast, followed by a single-shot 3D fast gradient echo (GRE) readout with short echo time (TE<2 ms). The separation of BOLD contrast generation from the readout substantially reduces the “dead time” due to long TE required in spin echo (SE) BOLD sequences. This approach termed “3D T2prep-GRE,” can be implemented with any magnetic resonance imaging machine, known to or conceivable by one of skill in the art. This approach is expected to be useful for ultra-high field fMRI studies that require whole brain coverage, or focus on regions near air cavities. The concept of using T2 preparation to generate BOLD contrast can be combined with many other fast imaging sequences at any field strength.

Abstract: Provided are apparatuses and methods for detecting biological information. An apparatus for detecting biological information may include a biological signal measurement unit having at least two light emission elements having different light emission angles. The at least two light emission elements may include different types of light sources. The at least two light emission elements may include multiple light sources of the same type, and in this case, an optical element configured to adjust a light emission angle of one of the light sources may be provided. The apparatus for detecting biological information may include a biological signal measurement unit including a light emitting unit having variable light emission angle. The apparatus for detecting biological information may further include a data processor configured to extract and analyze biological information of a subject from data measured by the biological signal measurement unit.

Abstract: A device and method for guided insertion of microelectrodes into tissue is provided. The device includes a flexible optical fiber for optical coherence tomography imaging, a metal layer coating the optical fiber for recording electrical signals and an outer insulation layer coating the metal layer along the optical fiber length. The method includes inserting an optical fiber coated with a metal layer and further coated with an insulation layer into a tissue, collecting intraoperative image data through the optical fiber by optical coherence tomography, receiving the image data on a computer and displaying the image on a monitor, using the image data to determine a location in the tissue, receiving an electrical nerve signal through the metal layer and measuring the electrical nerve signal on a electrophysiological recording system.

Abstract: A system for simultaneously detecting audio-characteristics within a body over multiple body surface locations comprising a coherent light source directing at least one coherent light beam toward the body surface locations, an imager acquiring a plurality of defocused images, each is of reflections of the coherent light beam from the body surface locations. Each image includes at least one speckle pattern, each corresponding to a respective coherent light beam and further associated with a time-tag. A processor, coupled with the imager, determines in-image displacements over time of each of a plurality of regional speckle patterns according to said acquired images. Each one of the regional speckle patterns is at least a portion of a respective speckle pattern. Each regional speckle pattern is associated with a respective different body surface location. The processor determines the audio-characteristics according to the in-image displacements over time of the regional speckle patterns.

Abstract: A system for monitoring parameters of an object is described. The system comprising: a monitoring unit configured for performing one or more monitoring sessions on an object and collecting data from an inspection region on the object over time and generating monitored data indicative of the inspected region, a stimulation unit configured and operable for applying at least one selected external stimulation field on the object during said one or more monitoring sessions, and a control unit configured for receiving the monitored data from the monitoring unit and determining one or more selected parameters. The stimulation unit is configured for providing said at least one selected external stimulation field directed toward said inspection region from two or more different directions.

Abstract: Tissue surface tracking of tissue features is disclosed. First surface imaged features are tracked based on the first and second time spaced images at a first wavelength. Second surface imaged features are tracked based on the first and second time spaced tissue surface images at the second wavelength. Tracking metrics are obtained based on the tracking steps. The tracking steps are combined to provide a combined tracking metric. The combined tracking metric is used in a tissue surface navigation application.

Abstract: A 3D scanner system for detecting and/or visualizing cariogenic regions in teeth based on fluorescence emitted from said teeth, the 3D scanner system including data processing means configured for mapping a representation of fluorescence emitted from the teeth onto the corresponding portion of a digital 3D representation of the teeth to provide a combined digital 3D representation.

Abstract: The present invention relates to an apparatus and a method of acquiring an image for dental diagnosis. More particularly, the present invention relates to an apparatus and a method of acquiring a near-infrared image for dental diagnosis, wherein an image for dental diagnosis is acquired using near-infrared radiation and a general image camera rather than using X-rays.

Abstract: In a photoacoustic apparatus, a light source irradiates an inspection target with pulsed light; a detector detects acoustic waves generated in the inspection target due to interaction of the pulsed light with the inspection target, and outputs detection signals corresponding to the detected acoustic waves; a light-quantity measurement unit measures the quantity of the light output from the light source; and a signal processor obtains information on an inside of the inspection target by using the detection signals output from the detector. The signal processor also corrects intensities of the detection signals so as to suppress variations in intensities of the detection signals caused by a temporal change in the quantity of the light.

Abstract: An apparatus includes a reception unit configured to receive a photoacoustic wave generated when an object is irradiated with light and output a received signal, and a processing unit configured to obtain an initial acoustic pressure distribution in the object by using the received signal and obtain object information by using an equation representing propagation of the light which includes the initial acoustic pressure distribution and a correction term including a background absorption coefficient distribution of the object.

Abstract: A medical device for the measurement of brain temperature data through the Abreu brain thermal tunnel (ABTT) is described. Brain temperature measurement is the key and universal indicator of both disease and health equally, and is the only vital sign that cannot be artificially changed by emotional states. Currently, brain temperature is difficult to measure. However, the present disclosure describes a device that readily locates the Abreu brain thermal tunnel, and is configured to provide a non-contact temperature reading of the brain. Embodiments of the disclosed device enable an individual to measure their own temperature and enable medical professionals to measure the temperature of others.

Abstract: A vascular thermography system includes a portable electronic device and a thermal image analyzer in communications therewith. The portable electronic device includes a thermal imager to generate a thermal image of an anatomical area of a patient, a display, a processor configured to display the thermal image on the display, and a transceiver coupled to the processor to transmit the thermal image. The thermal image analyzer receives the thermal image from the portable electronic device, determines an assessment on vascular health of the patient based on comparing the thermal image to a database of thermal images, and transmits the assessment to the portable electronic device.

Abstract: A method, consisting of acquiring signals, indicative of temperatures at respective locations in a biological tissue, from a plurality of thermal sensors mounted on a probe in contact with the tissue, interpolating between the temperatures so as to produce a temperature distribution map, and displaying the temperature distribution map on a screen. The method also includes determining that at least one of the thermal sensors is a malfunctioning thermal sensor, and that remaining thermal sensors of the plurality are correctly operating. The at least one malfunctioning thermal sensor is assigned a first arbitrary temperature and the correctly operating thermal sensors are assigned second arbitrary temperatures.

Abstract: An apparatus of an embodiment is an apparatus that displays information regarding blood pressure of a measurement subject on a display screen and includes an information acquisition unit that acquires surge blood pressure information of the measurement subject; and a display processing unit that displays the surge blood pressure information as a circle graph on the display screen, the circle graph having a circular time axis corresponding to twenty-four hours, having a time scale indicating elapse of a unit time in the twenty-four hours clockwise along the time axis, and including an aggregation of bars of a bar graph that extends outward in a radial direction of an arc of the time axis and has height corresponding to a value based on the surge blood pressure information per the unit time.

Abstract: In non-contact pulse transit time measurement system of the present invention, two continuous-wave radars are provided to detect movements at two positions on a subject for use in measuring pulse transit time. The measurement of the pulse transit time can be continuous and last for a long time because there is no contact to skin necessary.

Abstract: A blood pressure measurement device measures a blood pressure of a subject by a blood pressure measurement unit, detects a body sound of the subject during blood pressure measurement by a sound detection unit. The measured blood pressure and the detected body sound are recorded in association with each other by time information. The factor for the increase of measured blood pressure value can be specified by showing the chronological blood pressure measurement result along with checking the presence or absence of a body sound such as snoring etc.

Abstract: Systems and methods are described for the compositing together of model-linked vascular data from a plurality of sources, including at least one 2-D angiography image, for display in a frame of reference of the at least one angiography image. In some embodiments, a linking model comprises a data structure configured to link locations of angiographic images to corresponding elements of non-image vascular parameter data. The linking data structure is traversed to obtain a mapping to the frame of reference of one or more of the angiographic images.

Abstract: In part, the disclosure relates to computer-based methods, devices, and systems suitable for performing intravascular data analysis and measurement of various types of data such as pressure and flow data. The disclosure relates to probes and methods suitable for determining an event in a cardiac cycle such as flow threshold such as a peak flow, a fraction thereof, other intravascular parameters or a point in time during which peak flow or a change in one of the parameters occurs. An exemplary probe includes one or more of a pressure sensor, a resistor, a flow sensor and can be used to generate diagnostic data based upon measured intravascular and other parameters. In part, the disclosure relates to methods and systems suitable for determining a coronary flow reserve value in response to one or more of intravascular pressure and flow data or data otherwise correlated therewith.

Abstract: The present invention relates to a device for determining information relating to a suspected occluding structure. It is described to provide (210) a spectral resolving unit with at least one broadband radiation. The at least one broadband radiation comprises a first broadband radiation acquired from a region of interest within a vascular structure. An occluding structure is suspected to be located within the region of interest and wherein the first broadband radiation is associated with the suspected occluding structure. At least one spectrally resolved data set is determined (220) on the basis of the at least one broadband radiation, wherein the at least one spectrally resolved data set comprises a first spectrally resolved data set determined on the basis of the first broadband radiation. A processing unit is provided (230) with the at least one spectrally resolved data set on the basis of the at least one broadband radiation.

Abstract: An implantable extravascular pressure sensing system including a cuff having a first brace portion, a second brace portion, and a plurality of biasing members movably coupling the first brace portion and the second brace portion to each other, the first brace portion defining a fluid chamber, the fluid chamber defining a recessed aperture, a flexible diaphragm coupled to the fluid chamber and sealing the recessed aperture, a fluid disposed within the fluid chamber for exhibiting a hydraulic pressure in communication with the flexible diaphragm, and a pressure sensor coupled to the first brace portion, the pressure sensor being configured to measure a change in the hydraulic pressure when a force is imparted on the flexible diaphragm.

Abstract: Systems, methods, and computer program product embodiments are disclosed for displaying cardiac signals based on a signal pattern. An embodiment operates by accessing an input cardiac signal. The embodiment matches a portion of the input cardiac signal to a known signal pattern. The embodiment then displays an indication of a degree of the match.

Abstract: According to one embodiment, a biological information measuring apparatus includes a detector, a measuring device, and a connector. The detector detects a pulse wave in a temporally continuous manner. The measuring device intermittently measures biological information and calibrate the pulse wave with the biological information. The connector having impact absorbability physically connects and integrates the detector and the measuring device.

Abstract: A monitoring method and system for providing visual enhancements during a medical procedure is described. The method includes capturing current visual information of a site during the medical procedure in real time, storing at least a portion of the captured visual information as stored visual information, identifying a feature of interest in at least one of the current visual information and the stored visual information; generating feedback data associated with the feature of interest, and displaying a virtual representation of the feedback data overlaid on the current visual information.

Abstract: A sensor structure includes a housing arranged to be attached to a body; a thermoelectric generator element in the housing and configured to convert temperature gradient into electric energy; a heat collecting surface coupled to the housing on a side arranged to face a skin when the body is coupled to a user of the sensor structure; a heat conduction channel coupled between the heat collecting surface and the thermoelectric generator element, wherein a cross-sectional area of the heat conduction channel is smaller than the heat collecting surface; and a heat sink coupled to the housing on a side arranged to face away from the skin when the body is coupled to the user.

Abstract: A wearable blood pressure detecting device is provided. The wearable blood pressure detecting device includes a pulse detecting module, a processing unit, a memory unit, a model selecting unit, and a blood pressure calculating unit. The pulse detecting module is configured to generate a pulse waveform. The processing unit is configured to capture the pulse waveform to generate at least one pulse characteristic value. The memory unit is configured to store at least two blood pressure models corresponding to different pulse characteristic value ranges. The model selecting unit is configured to select a corresponding blood pressure model according to the at least one pulse characteristic value. The blood pressure calculating unit is configured to calculate a blood pressure value by the selected blood pressure model.

Abstract: According to one embodiment, an apparatus includes a sensing apparatus and a calibration device. The sensing apparatus includes: a calculator calculating first information on a position of the sensing apparatus. The calibration device includes: a measuring device intermittently measuring first biological information; a receiver receiving the first information; a calculator calculating second information on a position of the calibration device; a determination unit determining whether or not the sensing apparatus and the calibration device are worn on an identical biological site based on the first and second information; and a calculator calibrating the pulse wave based on the first biological information and calculating second biological information based on the calibrated pulse wave.

Abstract: A pressure distribution profile of a subject lying on a mat is used to derive a measure of pulse wave velocity. Beat locations are identified where beat pressure signals are identified, and pulse timing information is obtained from the beat locations. By determining a subject posture, the beat locations are mapped to anatomical body locations and arterial path length information is obtained for the anatomical body locations. A pulse wave velocity is then estimated from the pulse timing information and arterial path lengths. This method enables measuring the pulse wave velocity during sleep in a comfortable, easy and unconstrained manner. This is accomplished by analyzing signals from a pressure sensitive surface for example on top of a bed mattress or by embedding a pressure sensitive layer in the mattress.

Abstract: Provided is a wrist blood pressure monitor wearable on a wrist. The wrist blood pressure monitor includes: a wrist cuff having a wrist strap; and a blood pressure measuring sensor disposed on the wrist cuff, wherein the wrist strap comprises a strap frame which is arranged around the ulna along the circumferential direction of the wrist and is bent in a predetermined shape so as to cross a portion where the ulnar artery passes, so as to maintain the shape of the skeleton of the strap frame, and a connecting strap disposed on the strap frame and connecting one end and the other end of the strap frame. A user is allowed to conveniently measure blood pressure, and ensures the blood flow of the ulnar artery while the blood pressure measurement is performed, thereby improving the accuracy.

Abstract: The present invention provides a wearable device for monitoring blood-pressure.

Abstract: High blood pressure measurement accuracy can be achieved with a blood pressure monitor employing a double cuff structure. A blood pressure monitor of the present invention includes a pressing member that includes a pressure cuff having a bag shape capable of containing fluid and generates a pressing force toward a measurement site of a subject when the pressing member is wound around the measurement site and the pressure cuff is inflated, and a controller that controls an operation of the adjuster such that the fluid is contained in the sensing cuff in an amount corresponding to biometric information about the subject and the pressure cuff is inflated or inflated and deflated in this state when performing a blood pressure measurement, and calculates a blood pressure value of the subject based on an output from the pressure sensor.

Abstract: According to one embodiment, an apparatus includes a detector, a measuring unit, and a calculator. The detector detects a pulse wave in a temporally continuous manner. The measuring unit measures first biological information intermittently. A calculator calibrates the pulse wave based on the first biological information and calculates second biological information from the pulse wave calibrated. The detector, The measuring unit, and The calculator are arranged at a same site.

Abstract: Some method examples may include pacing a heart with cardiac paces, sensing a physiological signal for use in detecting pace-induced phrenic nerve stimulation, performing a baseline level determination process to identify a baseline level for the sensed physiological signal, and detecting pace-induced phrenic nerve stimulation using the sensed physiological signal and the calculated baseline level. Detecting pace-induced phrenic nerve stimulation may include sampling the sensed physiological signal during each of a plurality of cardiac cycles to provide sampled signals and calculating the baseline level for the physiological signal using the sampled signals. Sampling the sensed physiological signal may include sampling the signal during a time window defined using a pace time with each of the cardiac cycles to avoid cardiac components and phrenic nerve stimulation components in the sampled signal.

Abstract: Cardiac activation timing is mapped using a catheter-mounted roving electrode instead of a fixed (e.g., coronary sinus) electrode. The roving electrode is used to measure an initial electrophysiological signal at an initial cardiac location as a reference signal, which is defined as a reference signal. Local activation time(s) for other cardiac location(s), also measured using the catheter-mounted roving electrode, are determined relative to the reference signal. The stability of the reference signal can be monitored, such as by comparing activation rates or cycle lengths between an instantaneously-measured electrophysiological signal and the initial electrophysiological signal. Smaller differences between the two (e.g., less than about 5%) can be compensated for, while larger differences can result in redefining the reference signal.

Abstract: A system and method for sensing acoustic data generated by a user is disclosed. The system includes a wearable sensor including an accelerometer sensor in contact with the skin of the patient to measure mechano-acoustic signals generated from a bodily function and generate an accelerometer waveform. A controller receives the accelerometer waveform from the accelerometer sensor to determine a measurement of the bodily function. The wearable sensor includes features to directly contact the skin and isolate the accelerometer sensor to produce more accurate output signals.

Abstract: A system including a sensor interface coupled to a processor. The sensor interface is configured to receive and process an analog electrocardiogram signal of a subject and provide a digitized electrocardiogram signal sampled over a first time period and a second time period that is subsequent to the first time period. The processor is configured to receive the digitized electrocardiogram signal, to analyze a frequency domain transform of the digitized electrocardiogram signal sampled over the first and second time periods and determine first and second metrics indicative of metabolic state of a myocardium of the subject during the first and second time periods, respectively, to compare the first and second metrics to determine whether the metabolic state of the myocardium of the subject is improving, and to indicate administration of an intervention to the subject in response to a determination that the metabolic state is not improving.

Abstract: Phase space tomography methods and systems to facilitate the analysis and evaluation of complex, quasi-periodic system by generating computed phase-space tomographic images and mathematical features as a representation of the dynamics of the quasi-periodic cardiac systems. The computed phase-space tomographic images can be presented to a physician to assist in the assessment of presence or non-presence of disease. In some implementations, the phase space tomographic images are used as input to a trained neural network classifier configured to assess for presence or non-presence of pulmonary hypertension, including pulmonary arterial hypertension.