An optoelectronic sensor, a control method for the optoelectronic sensor, and a pulse monitor including the optoelectronic sensor. The optoelectronic sensor may include a light source, a first receiver, a second receiver, and a phantom material layer that is facing a light-emitting side of the light source and at least partially overlapping with the second receiver.

A photoacoustic catheter includes an elongated catheter body and a housing positioned near a distal end of the elongated catheter body. A length of multimode fiber extends through the elongated catheter body and has a distal end that is beveled at about 45° relative to a longitudinal axis of the multimode fiber and is positioned in the housing. An ultrasonic transducer, electrically connected to an electrical wire extending along the elongated catheter body, is positioned within the housing. A mirror element is also positioned within the housing and includes a mirror surface beveled at about 45° relative to the longitudinal axis of the multimode fiber. The catheter is operable to deliver an optical wave through the multimode fiber and to deliver an ultrasonic wave collinearly from the housing and out of an aperture of the housing to obtain optical data and ultrasonic data within a mammalian luminal organ.

Kits, diagnostic systems and methods are provided, which measure the distribution of colors of skin features by comparison to calibrated colors which are co-imaged with the skin feature. The colors on the calibration template (calibrator) are selected to represent the expected range of feature colors under various illumination and capturing conditions. The calibrator may also comprise features with different forms and size for calibrating geometric parameters of the skin features in the captured images. Measurements may be enhanced by monitoring over time changes in the distribution of colors, by measuring two and three dimensional geometrical parameters of the skin feature and by associating the data with medical diagnostic parameters. Thus, simple means for skin diagnosis and monitoring are provided which simplify and improve current dermatologic diagnostic procedures.

A system and method for non-invasive and/or non-contact measurement of a subject's tremor in the context of therapeutic intervention is presented. The system includes a memory, a communications interface, a sensor to measure a signal associated with position or motion of an extremity of the subject, and a processor. The processor is configured to receive the signal from the sensor. The processor is further configured to communicate, via the communications interface, the signal, login credentials, and position or motion data to a remote server coupled to a remote electronic health record database. The remote server is configured to receive the signal and perform an analysis that quantifies a severity of tremor based on the position or motion signals of the subject. The processor is configured to receive the analysis that quantified the severity of tremor and cause the quantified severity of tremor to be displayed via a display device.

A method of evaluating the suitability of a mobile device for performing an analytical measurement based on a color formation reaction. The capability of the mobile device to have relevant settings of the mobile device controlled by software running on the mobile device is evaluated. The relevant settings pertain to image raw data processing steps to be carried out by the mobile device and may include a color space transformation and a tone mapping transformation. When the evaluation indicates that the mobile device is capable of having the relevant settings controlled by the software, control information indicating that the mobile device is suitable for performing the analytical measurement is provided. When the evaluation indicates that the mobile device is not capable of having the relevant settings controlled by the software, control information indicating that the mobile device is unsuitable for performing the analytical measurement is provided.

An oxygen saturation measuring apparatus capable of measuring arterial blood oxidation saturation (SpO2), and tissue oxygen saturation (rSO2), safely, easily and economically at a desired position of a biological body for a long time continuously. A ROM stores the distance information between a light emitting unit and a light receiving unit situated corresponding to the depth of a target intended to be measured for tissue oxygen saturation, a light emission driving unit makes the light emitting unit emit light in an amount of light corresponding to the distance information, MPU makes the light emitting unit emit a pulses capable of measuring the tissue oxygen saturation, MPU applies pulse capable of measuring the tissue oxygen saturation from the light emission driving unit to the light emitting unit, and the pulse increasing unit increases the amount of pulses from MPU for a predetermined time to pulses capable of measuring the arterial blood oxygen saturation.

An oxygen saturation measuring apparatus capable of measuring arterial blood oxidation saturation (SpO2), and tissue oxygen saturation (rSO2), safely, easily and economically at a desired position of a biological body for a long time continuously. A ROM stores the distance information between a light emitting unit and a light receiving unit situated corresponding to the depth of a target intended to be measured for tissue oxygen saturation, a light emission driving unit makes the light emitting unit emit light in an amount of light corresponding to the distance information, MPU makes the light emitting unit emit a pulses capable of measuring the tissue oxygen saturation, MPU applies pulse capable of measuring the tissue oxygen saturation from the light emission driving unit to the light emitting unit, and the pulse increasing unit increases the amount of pulses from MPU for a predetermined time to pulses capable of measuring the arterial blood oxygen saturation.

An imaging system for a patient is provided. The system includes an imaging probe having an elongate shaft with a proximal end, a distal portion, and a lumen extending between the proximal end and the distal portion. A rotatable optical core is positioned within the lumen of the elongate shaft. An optical assembly is positioned proximate the distal end of the rotatable optical core and is configured to direct light to tissue and collect reflected light from the tissue. An imaging assembly is constructed and arranged to optically couple to the imaging probe and the imaging assembly is configured to emit light into the imaging probe and receive the reflected light collected by the optical assembly.

According to one aspect, a medical device comprising may include a proximal end, a distal end, and a shaft extending between the proximal end and the distal end. The medical device may further include a magnetic sensor assembly that may include a magnetic coupler and first and second magnetic sensors, wherein the magnetic coupler is located at the distal end of the medical device and is rigidly affixed to an inner surface of the shaft. The medical device may further include an optical fiber comprised of a plurality of fiber cores extending along a length of the shaft, wherein one or more of the plurality of fiber cores include an optical sensor located at a location along a length of the optical fiber, wherein the optical fiber is rigidly supported within the shaft at a location near the optical sensor.

The invention relates to a method and an apparatus for validating a continuously measuring, non-invasive blood pressure measuring system equipped with a plethysmographic system capable of obtaining—in a measuring phase—a plethysmographic signal v(t) at an extremity, having a control mechanism to which the signal v(t) from the plethysmographic system is fed, which varies the contact pressure p.sub.C(t) at the extremity via a control value u(t), and having an evaluation unit which continuously determines the arterial blood pressure curve p.sub.A(t) based on the resulting contact pressure p.sub.C(t). According to the invention, the blood pressure measuring system has a coupling interface via which—in a validation or test phase—a signal derived from a previously recorded blood pressure curve can be input into the blood pressure measuring system.