An exemplary embodiment of the present disclosure provides a method of determining stress levels in a user comprising: receiving galvanic skin response (GSR) measurements by a wearable sensor on the user over a period of time; receiving temperature measurements by the wearable sensor on the user over the period of time; determining changes in the temperature over a predetermined threshold in the temperature measurements over the period of time; calibrating the GSR measurements based on the determined changes in temperature over the predetermined threshold; calculating a stress level of the user based on the calibrated GSR measurements; and generating an output indicative of the calculated stress level.

An apparatus and method for creating a three dimensional imaging system is disclosed. There is a first source of laser light and a second source of laser light having a wavelength different from the wavelength of the laser light of the first source. The laser light from the first and second sources are combined, and the combined laser light is transmitted to a scanner. The scanner further transmits the combined light to a surface to be imaged.

A handheld multi-parameter measuring instrument includes: a housing having a sidewall and opposed first and second surfaces, the sidewall, the first surface and the second surface cooperatively forming a cavity; a cover attached to the sidewall and rotatably connected to the housing; the blood oxygen transducer includes a light emitting unit and a light receiving unit; the light emitting unit is configured to emit red light and infrared light alternately; the light receiving unit is configured to receive the red light and the infrared light emitted from the light emitting unit; the signal processing unit is received in the cavity of the housing and is configured to control the light emitting unit to emit the red light and the infrared light alternately; the signal processing unit is further configured to calculate oxygen saturation based on a signal received by the light receiving unit; the light emitting unit is located at a side of the cover attached to the housing, and the light receiving unit is located at the sidewall. When measuring blood oxygen saturation, one hand holds the first surface and the second surface of the housing, and one finger of the hand is inserted between the cover and the sidewall of the housing attached to the cover. This handheld multi-parameter measuring instrument is easy to use and has a high measuring accuracy.

A portable vein viewer apparatus may be battery powered and hand-held to reveal patient vasculature information to aid in venipuncture processes. The apparatus comprises a first laser diode emitting infrared light, and a second laser diode emitting only visible wavelengths, wherein vasculature absorbs a portion of the infrared light causing reflection of a contrasted infrared image. A pair of silicon PIN photodiodes, responsive to the contrasted infrared image, causes transmission of a corresponding signal. The signal is processed through circuitry to amplify, sum, and filter the outputted signals, and with the use of an image processing algorithm, the contrasted image is projected onto the patient's skin surface using the second laser diode. Revealed information may comprise vein location, depth, diameter, and degree of certainty of vein locations. Projection of vein images may be a positive or a negative image. Venipuncture needles may be coated to provide visibility in projected images.

A method and system for expediting the rescue of victims experiencing sudden cardiac arrest (SCA) when used in conjunction with an automated external defibrillator (AED). The system involves an apparatus that calls for help (i.e. 911), detects SCA and cardiac arrhythmias, locates an AED, guides the rescuer through CPR and connection of the AED. A second apparatus is in the enclosure that contains the AED, sends location information to the other apparatus, triggers audible and visual indicators, and provides information on the victim's location.

A first acquisition unit acquires the current position of a carriage unit as information regarding the travel environment of the carriage unit. A second acquisition unit acquires a first upper limit value of the travel speed as appropriate travel conditions of the carriage unit corresponding to the current position acquired by the first acquisition unit. A third acquisition unit acquires a first measurement value of the travel speed as information regarding the travel state of the carriage unit. A travel state correction controller performs travel state correction control to make a correction to a travel state satisfying the appropriate travel conditions in a case where the travel state acquired by the third acquisition unit deviates from the appropriate travel conditions acquired by the second acquisition unit. That is, the travel state correction controller reduces the travel speed of the carriage unit in a case where the first measurement value exceeds the first upper limit value.

In order to appropriately set a condition for measurement of a sensor for measuring an object to be measured in accordance with a change of an external index that can affect the object to be measured, a sensor system includes first and second sensors, a determination unit for outputting a detection signal when a measurement result of the first sensor satisfies a predetermined condition, a measurement condition storage unit for storing a condition for measurement of the second sensor, and a control unit for performing measurement by the second sensor separately from measurement in accordance with the condition for measurement, when having received the detection signal, and for updating the condition for measurement of the second sensor stored in the measurement condition storage unit based on a result of the performed measurement.

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.

The invention relates to a device for optoacoustic imaging of an object and a method for controlling such a device. An irradiation unit is configured to emit electromagnetic radiation and to irradiate an object with the electromagnetic radiation, and at least one reference element is arranged such that a part of the electromagnetic radiation emitted by the irradiation unit impinges on the reference element. The reference element is configured to emit first acoustic waves in response to the impinging electromagnetic radiation. Further, a detection unit is configured to detect first acoustic waves emitted by the reference element and second acoustic waves emitted by the object in response to irradiating the object with the electromagnetic radiation. The detection unit is further configured to generate an according first detection signal and second detection signal, respectively. A processing unit is configured to correct, in particular to normalize, the second detection signal using the first detection signal to obtain a corrected second detection signal, and to generate image information regarding the object based on the corrected, in particular normalized, second detection signal.

The present disclosure relates to compounds that are useful as near-infrared fluorescence probes, wherein the compounds include i) a ligand that binds to the active site of carbonic anhydrase, ii) a dye molecule, and iii) a linker molecule that comprises an amino acid, amide, ureido, or polyethylene glycol derivative thereof. The disclosure further describes methods and compositions for making and using the compounds, methods incorporating the compounds, and kits incorporating the compounds.