In some examples, a device includes at least three electrodes a first pair of electrodes and a second pair of electrodes. The device also includes circuitry configured to generate a first cardiac signal based on a first differential signal received across the first pair, generate a first brain signal based on the first differential signal received across the first pair, generate a second cardiac signal based on a second differential signal received across the second pair, and generate a second brain signal based on the second differential signal received across the second pair. The circuitry is also configured to output a composite cardiac signal based on the first cardiac signal and the second cardiac signal and to output a composite brain signal based on the first brain signal and the second brain signal.

A guidewire system includes an elongated wire configured for insertion into a luminal space, such as the vasculature, of a body. The wire is conductive and configured to conduct electrical signals. One or more sensors are coupled to a distal section of the wire and configured to send and receive the electrical signals via the wire. The wire through which the one or more sensors are coupled is the only wire through which the one or more sensors send and receive the electrical signals.

An infant sleep device may include a platform for supporting an infant, a base upon which the platform is supported, and one or more weight sensors positioned to measure weight of an infant positioned on the platform.

A system and a method for detecting mild traumatic brain injury (mTBI) includes a memory arrangement including stored brain data corresponding to electrical activity of a brain of a subject at locations in the brain during a first time period. In addition, the system includes a processor receiving the stored brain data and current brain data corresponding to electrical activity of the brain of the subject at the plurality of locations during a second time period, wherein the second time period is after the first time period. The processor generates a first set of phase synchrony measures (PSM) corresponding to frequency band-specific oscillatory phase synchrony of the stored brain data, and a second set of PSM corresponding to frequency band-specific oscillatory phase synchrony of the current brain data. The processor determines a likelihood of mTBI based on the first and second sets of PSM. The stored brain data may be a normative distribution of data of the electrical activity of the brain determined from a set of standards

A staple cartridge for use with a surgical stapler and surgical stapling systems are disclosed. The staple cartridge comprises a cartridge body having a tissue-contacting surface. One or more light emitting diodes (LEDs) are positioned at the edges of the tissue-contacting surface. A plurality of staple drivers is located within the cartridge body each supporting a staple.

Wearable devices using “legacy” sensors such as proximity sensors or infrared sensors suffer from false positives when, such as when they are placed in a hand, but not inserted on the user's body or on or into the user's ear. Embedding a PPG module or PPG sensor into the wearable device allows for the PPG module to act as a secondary check for the presence of a user wearing the wearable device. In some examples, the PPG module can be used as a sole sensor for the presence or absence of a human user. In other examples, a PPG module can be used to perform a secondary action after the “legacy” sensor performs a first action. For example, the first action can be connecting to a user device while the second action can be opening an application or playing music.

The invention relates to a system for detecting biosignals, comprising a sensor unit and a patch that can be attached to the body and has electrodes and conductor tracks. The sensor unit and the patch can be connected to one another via a connector arranged on the patch in such a way that an electrical connection is produced and the sensor unit is held on the body via the patch. The sensor unit has a plurality of contact elements for electrically contacting the connector and/or the patch. According to the invention, at least two contact elements of the sensor element are conductively connected to one another via a conductor track of the patch by connecting the patch to the sensor unit.

An apparatus (10) for minimally-invasive, including non-invasive, prevention and/or treatment of hydrocephalus and method for use of the same are disclosed. In one embodiment of the apparatus (10), a housing (50) is sized for superjacent contact with a skull having a fontanel. Within the housing (50), a compartment (12) includes a pressure applicator (88), such as a fluid-filled bladder (22), under the control of a pressure regulator (14). The pressure applicator (88) is configured to selectively apply an external pressure to the fontanel. The compartment (12) includes a pressure sensor (90) configured to measure intracranial pulse pressure of the fontanel. Further, in one embodiment, the apparatus (10) can cause pulse pressure modulation by adjusting the intracranial pulse pressure via the pressure applicator (88). This enables a non-invasive measurement of the pulse pressure and modulation thereof in infants, for example.

The present specification describes a method for diagnosing if a patient is suffering from a stroke. The method includes: positioning a headset around the patient's head to passively receive vibrations generated by a cerebral vasculature of the patient's brain, the headset including at least one microphone or accelerometer; processing the received vibrations to obtain a signal; analyzing the signal to identify a pattern indicative of a stroke; and determining that the patient is suffering from a stroke based upon the result of a CT scan of the patient's brain and neck and the identified pattern indicative of a stroke.

A system for measuring cardiovascular data includes an elongate member having a channel, a first expandable member carried by the elongate member and movable between a collapsed state and an expanded state by adjustment initiated externally of a subject, a first sensor disposed on a surface of the elongate member, second and third sensors disposed on a surface of the first expandable, a first optical sensor located at a first location in relation to the distal end of the elongate member and configured for obtaining photoplethysmographic data, and wherein the first expandable member in its expanded state is configured to interface with the subject's larynx for delivery of at least oxygen gas into the respiratory system of the subject, and the second and third sensors are configured to contact tissue in proximity to the larynx when the first expandable member is in its expanded state.