A heart monitoring system for a person includes one or more wireless nodes; and wearable appliance in communication with the one or more wireless nodes, the appliance monitoring vital signs.

Examples of an optical standard and a calibration apparatus for calibrating or characterizing a spectroscopy system using such optical standard are disclosed. The optical standard can comprises a mixture of acetaminophen and barium sulfate, wherein a mass of the acetaminophen in the mixture is being less than a mass of the BaSO4. Such optical standard can be used in a calibration device for calibrating or characterizing a spectroscopy system. The calibration device can comprise a substrate base with a top surface and a bottom surface. The top surface can include a section for receiving the optical standard sample. The receiving section can be adhesive. The calibration device can further comprise a film that can be attached to the top surface of the substrate base to cover at least the section of the substrate where the optical standard is being placed. The calibration device can be disposed after the calibration measurements are completed. The optical standard and the calibration apparatus using the optical standard can be used as a wavelength calibration standard to calibrate a Raman system, a reflectance reference standard for a reflectance spectral measurement or for a reliability check in a fluorescence spectral system.

An optical measuring device includes: a light source unit; a measurement probe including a fiber bundle, an illumination fiber that illuminates a living tissue with a illumination light, and a plurality of light-receiving fibers that receives return light of the illumination light reflected and/or scattered at the living tissue; a detection unit that receives the return light of the illumination light detected by the plurality of respective light-receiving fibers, and performs photoelectric conversion to detect respective signal intensities; and an association unit that associates the respective signal intensities detected by the detection unit with distances from the illumination fiber to the respective light-receiving fibers on an end face of a distal end portion of the measurement probe, when light having an intensity gradient around the illumination fiber is projected to the end face of the distal end portion of the measurement probe.

Devices and methods are provide for facilitating registration and calibration of surface imaging systems. Tracking marker support structures are described that include one or more fiducial reference markers, where the tracking marker support structures are configured to be removably and securely attached to a skeletal region of a patient. Methods are provided in which a tracking marker support structure is attached to a skeletal region in a pre-selected orientation, thereby establishing an intraoperative reference direction associated with the intraoperative position of the patient, which is employed for guiding the initial registration between intraoperatively acquired surface data and volumetric image data. In other example embodiments, the tracking marker support structure may be employed for assessing the validity of a calibration transformation between a tracking system and a surface imaging system. Example methods are also provided to detect whether or not a tracking marker support structure has moved from its initial position during a procedure.

A photoacoustic imaging apparatus includes a light source portion and a signal processing portion. The signal processing portion is configured to perform imaging processing on the basis of either a first acoustic wave signal or a second acoustic wave signal by performing processing for disabling either the first acoustic wave signal corresponding to a rising edge of a pulse signal of pulsed light or the second acoustic wave signal corresponding to a falling edge of the pulse signal of the pulsed light.

The present disclosure relates to an arrangement (21, 71) for minimal invasive intervention, the arrangement (21, 71) comprising a rotation body (23, 73), a retaining device (25, 75) and at least one position sensor (27, 77, 79). The rotation body is adapted to receive a medical instrument (3, 5, 7, 9, 33), or the rotation body forms a part of a medical instrument (83). The medical instrument comprises a shaft (31, 81). At least a portion of a surface of the rotation body comprises a pattern (35, 87, 91). The retaining device is adapted to at least partly surround the rotation body, such that the rotation body is retained by the retaining device in a manner allowing rotational movement of the rotation body in relation to the retaining device. The at least one position sensor is adapted for determining a position in at least two coordinates of the pattern of the rotation body. The at least one position sensor is located at, in or on the retaining device. The disclosure further relates to a medical instrument (3, 5, 7, 9, 33, 83), a kit (63) comprising the arrangement, a system (65) for follow-up of a minimal invasive intervention and a method for determining a position of a medical instrument by means of the arrangement or kit.

A method of examining breasts of a patient in an examination room to detect for potential breast cancer includes sliding a camera assembly along a rail between a pair of rail ends on a horizontal plane between a plurality of positions. A plurality of control thermographic images and a plurality of test thermographic images are recorded during the sliding movement to allow the camera assembly to consecutively record the control and test thermographic images of breasts of the patient from each of the plurality of positions. The camera assembly is slid to first and second optimal positions that are each disposed adjacent to one of the rail ends and in alignment with first and second sides of the breasts of the patient to capture images of the lymph nodes on the sides of the breasts.

A component measurement apparatus includes: a sensor module that receives reflected light and outputs a signal corresponding to light intensity of the reflected light; a calibration plate that outputs first reflected light to the sensor module, the first reflected light being used for comparing the light intensity of the reflected light; and a calibration unit that switches the input reflected light to the sensor module between the second reflected light reflected at a measured portion, and the first reflected light.

A processing apparatus, comprises: a first acquirer configured to acquire a first specific information distribution of an object based on acoustic waves propagating from the object onto which light is irradiated; a second acquirer configured to acquire a characteristic value of the first specific information distribution of the object; a third acquirer configured to acquire information indicating a correspondence between an optical coefficient and the characteristic value of the first specific information distribution; and a fourth acquirer configured to acquire the optical coefficient of the object using the characteristic value of the first specific information distribution of the object and the information indicating the correspondence.

Aspects of the embodiments are directed to compact and non-contact systems, methods, and devices for optical detection of target chemicals on/in samples are disclosed. Light of at least two different wavelengths, or different bands of wavelengths, interacts with a target chemical, and at least some of the light that has interacted with the target chemical is incident on at least two photodetectors. Each of the photodetectors is configured to detect light of a different wavelength, or a different band of wavelengths, that has interacted with the target chemical. A processing logic is configured to compute a ratio between a parameter indicative of the intensity of light detected by one photodetector and a parameter indicative of the intensity of light detected by the other photodetector, and to determine the presence and/or the amount of the target chemical based on the computed ratio.