A multimodality system includes first and second modalities, a catheter, and a processor. The catheter collects fluorescent light from a plurality of locations of a sample which has been irradiated with excitation light of the second modality; a detector detects intensity of the fluorescent light received from the plurality of locations as a function of an angle α formed between the normal to the sample surface and the optical axis of the excitation light. A processor calculates the angle α at each of the plurality of locations based on radiation of the first modality incident on the sample, and corrects the intensity of the detected fluorescent light using a calibration factor g(α). The calibration factor g(α) is a function of the angle α calculated at two or more of the plurality of locations. The angle α is composed of a transversal angle α.sub.t and an axial angle α.sub.a.

An optical coherence tomography device includes a base with a detection end and a mounting end, a movable base and a second drive mechanism. An optical imaging catheter is pivotally connected to the detection end. The optical imaging catheter is provided with an imaging end and a connecting end. The connecting end is detachably connected to the detection end, and the connecting end is provided with a first connecting part. The movable base is provided with a fiber optic rotary joint, a hollow shaft and a first drive mechanism. The end of the hollow shaft is provided with a second connecting part. When the movable base moves toward the detection end, the second connecting part is configured to be connected to the first connecting part so that the optical imaging catheter is coupled with the hollow shaft. The device is capable of manually or automatically connecting the optical imaging catheter.

The invention relates to a measuring device for continuously determining the intra-arterial blood pressure in a finger of a hand, the measuring device comprises a base part and a cuff part. A light source for near-infrared light and a photodetector are provided for the finger. The light sources and the photodetectors are connected to an associated optical emission surface or optical collector surface via a respective so-called light pipe for coupling emitted light into the finger tissue or decoupling non-absorbed light from the finger tissue. The cuff-side and base-part-side sections of the light pipes are connected to one another via separable optical contact points at the interface between the cuff part and the base part. On the base-part side, a cover glass closes flush with the housing of the base part and is attached to the contact points.

A technique is disclosed for downsizing a motor drive unit (MDU) and improving durability in an imaging apparatus for diagnosis. In the motor drive unit, when a catheter connector is connected, a motor drive unit connector (MDU connector) for being connected to the catheter connector has a shape which accommodates the catheter connector in order to optically connect an optical fiber of a cylindrical member of a catheter and an optical fiber leading from the imaging apparatus for diagnosis to each other, and in order to connect an electrical contact portion of the catheter and an optical/electrical signal line leading from the imaging apparatus for diagnosis to each other. Then, the motor drive unit has a structure, which supports a center position of an end portion of the optical fiber exposed from the cylindrical member of the catheter, as a rotation center position of an imaging core.

The present invention relates to a cable unit for connecting devices in a system, in particular in a patient monitoring system, to enable wireless exchange of data and/or power between them. The proposed cable unit comprises a cable (510) and a connector (520, 530) arranged at each end of said cable, said connector comprising a data transmission unit (522, 532) for transmitting data to and/or receiving data from a device having a counterpart connector and a magnetic coupling unit (521, 531) for transmitting power to and/or receiving power from another device of the system having a counterpart connector by use of inductive coupling.

A regional oximetry system has a display and at least one processor causing a plurality of views to be displayed on the display, each configured to occupy at least a portion of the display. The views are adapted to present data responsive to at least one physiological signal. A first sensor port is configured to receive at least a first physiological signal representative of a regional tissue oxygenation level, and a second sensor port is configured to receive at least a second physiological signal representative of an arterial oxygen saturation level. One view presents a first trend graph of the first physiological signal and a second trend graph of the second physiological signal. An area between the first trend graph and the second trend graph can include a differential analysis of regional-to-central oxygen saturation.

An ablation catheter including a tip coupled to a distal end of a shaft. The tip can include a displacement feature between a proximal portion and a distal portion of the tip. The distal portion can be configured to move with respect to the proximal portion based on the displacement feature. A first optical fiber can be coupled to the proximal portion. A second optical fiber coupled to the distal portion and optically aligned with the first optical fiber. The second optical fiber can be positioned at a distance from the first optical fiber and can be configured to move with respect to the first optical fiber according to a displacement of the distal portion of the tip. A fluid can be located between the first optical fiber and the second optical fiber.

A method and apparatus for monitoring brain activity of a user is disclosed. The apparatus includes a plurality of spatially separated emitters operable to generate infrared radiation. The apparatus also includes a plurality of spatially separated infrared radiation detectors, and a plurality of light pipes urged into contact with the user's scalp, each one of the plurality of emitters and detectors having an associated light pipe operable to couple infrared radiation from the emitter into the scalp or to couple infrared radiation from the scalp to the detector. Each detector is operable to produce a signal representing an intensity of infrared radiation generated by a selectively actuated one of the plurality of emitters and received at the detector after traveling on a path through underlying brain tissue, the signals being received by a controller operably configured to process the signals from each detector to determine changes in blood oxygenation within the brain tissue along the path between the respective emitter and detector, and generate a spatial representation of brain activity within in the user's brain based on the processed signals.

An optical measurement system includes a wearable module assembly configured to be worn on a body of a user. The wearable module assembly includes a plurality of wearable modules and a connecting assembly. Each wearable module includes a light source configured to emit a light pulse toward a target within the body of the user and a plurality of detectors configured to receive photons included in the light pulse after the photons are scattered by the target. The connecting assembly physically and flexibly connects the plurality of wearable modules such that the wearable module assembly is conformable to a three-dimensional (3D) surface of the body of the user when the wearable module assembly is worn on the body of the user.

An earpiece configured to be positioned within an ear canal of a subject includes a housing, a sensor assembly disposed within the housing, and a cover removably secured to a free end of the housing. The sensor assembly includes at least one optical emitter and at least one optical detector. The cover includes at least one light guide configured to guide light from the at least one optical emitter and/or guide light from the ear of the subject to the at least one optical detector. The cover also includes a plurality of stabilizing members extending outwardly from an outer surface of the cover adjacent the at least one light guide. The earpiece may also include at least one ear support fitting associated with the housing that is configured to stabilize the earpiece within the ear canal.