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.

Examples of systems, devices, and methods as described in this disclosure include a shoulder motion measurement system comprising a mounting device comprising a receptacle configured to hold an electronic device at a fixed orientation relative to a scapula of a patient, wherein the mounting device comprises one or more structures configured for handling by a user when aligning the shoulder motion measurement system against the patient.

A wireless measurement system for measuring data of human body includes multiple measurement devices. One of the multiple measurement devices is a wireless measurement device configured to be attached to a skin of the human body and to obtain a first measurement data. The wireless measurement device is further configured to perform an all-day measurement and to return the first measurement data with a fixed time period when the wireless measurement device is attached to the skin of the human body.

An optical sensing device includes a device casing and an optical sensor on the device casing. In an embodiment, the optical sensing device further includes an image-capturing device on the device casing. The sensing direction of the optical sensor and the capturing direction of the image-capturing device point in the same direction. The image-capturing device can capture an image of an object to be sensed by the optical sensor. In another embodiment, the optical sensing device further includes a flexible shielding cover on the device casing and enclosing the optical sensor for shielding the optical sensor from external light.

Disclosed is a patch guide method including acquiring a 3-dimensional scan model including the head of an object by using a depth camera, by a computer, acquiring a 3-dimensional brain MRI model of the object, matching the scan model and the brain MRI model to acquire a matched model, acquiring an image captured by photographing the head of the object by using the depth camera, and matching one location of the captured image and one location on the matched model.

A headset for detecting brain electrical activity may include a flexible substrate having first and second ends each configured to engage an ear of a subject and dimensioned to fit across the forehead of a subject. The headset may also include a plurality of electrodes disposed on the substrate and configured to contact the subject when the headset is positioned on the subject. First and second electrodes may contact top center and lower center regions of the forehead, respectively, third and fourth electrodes may contact front right and front left regions of the forehead, respectively, fifth and sixth electrodes may contact right side and left side regions of the forehead, respectively, and electrodes included within the securing devices may contact the ear regions. The third and fourth electrodes may be moveable in at least a vertical direction relative to the other electrodes.

Infusion systems, infusion devices, and related operating methods are provided. An exemplary method of providing site rotation feedback pertaining to a sensing arrangement providing sensed measurements of a physiological condition in a body of a user involves obtaining one or more reference measurements of the physiological condition in the body of the user, determining a lag associated with the sensing arrangement based on a relationship between the one or more reference measurements and one or more of the sensed measurements, identifying a current site location on the body of the user associated with the sensing arrangement from among a plurality of site locations based on the lag, determining one or more performance metrics associated with the current site location, and providing sensor site feedback in a manner that is influenced by the one or more performance metrics.

A system for measuring physiological parameters, including: a portable measurement system, operable to acquire physiological measurement from an examined body location; an external camera operable to capture visible light, oriented toward the examined body location; a synchronization module, operable to receive a triggering indication, and in response to the triggering indication to associate to the physiological measurement a positioning image captured by the camera, the positioning image including at least a part of the portable measurement system adjacent to the examined body location; and a communication module operable to obtain the physiological measurement and the positioning image, and to transmit to a remote system: a physiological measurement record based on the physiological measurement, an orientation image based on the positioning image, and including at least a part of the portable measurement system adjacent to the examined body location, and association data associating the orientation image and the physiological measurement record.

An electronic device and method for measuring biometric information are provided. The electronic device includes at least one light emitter; light receiver; and a processor. The processor is configured to emit light outside of the electronic device through the at least one light emitter, obtain, through the light receiver, light reflected by an external object among the emitted light, obtain a signal generated based on at least a portion of the reflected light and corresponding to the external object, output guide information related to a location of the external object when the signal satisfies a first designated condition, and obtain biometric information about the external object when the signal satisfies a second designated condition. When a finger of a user finger of the electronic device is not accurately located at a bio sensor, by guiding an accurate grip location, biometric information about the user can be accurately measured.

A bioimpedance-measuring device comprising a band configured so as to surround a wrist of a first arm of a user and on which there are arranged at least two current-injecting electrodes and at least two potential-measuring electrodes, said measuring device furthermore comprising a system for collecting raw bioimpedance data from the potential-measuring electrodes and a system for processing raw data in order to obtain at least one monitoring measurement and information signifying a pulmonary bioimpedance condition, said collection system being carried by the band and configured so as to communicate with the processing system.