The present invention relates to a physiological recording electrode, and, more particularly, to an EEG (electroencephalography) recording electrode that can be used without the need for numerous steps in preparing the subject's skin and the electrode itself. The invention further relates to a surface feature or penetrator with a size and shape which that will not bend or break, which limits the depth of application, and/or anchors the electrode or other device during normal application; and a packaging system comprising a well and electrolytic fluid for maintaining a coating of said electrolytic fluid on the surface feature or penetrator.

An electrode carrier for electroencephalography (EEG) measurements, the carrier including: a flexible substrate for placement on a person's scalp, a plurality of electrodes for electroencephalography measurements, characterized in that the plurality of electrodes includes: a first electrode, for placement on a region of the person's scalp that is typically substantially free of hair, the first electrode comprising a non-adhesive conductive medium for contacting the person's scalp, and a second electrode, different from the first electrode, for placement on a region of the person's scalp that is typically substantially covered with hair, the second electrode comprising an adhesive conductive medium for contacting the person's scalp.

A sensor (220) for a body monitoring system (1), having analyte-measuring microneedles (210) that extend parallel to a main direction (Z) from a substrate (242) and define a working plane (Pt), wherein the sensor (220) has at least one conductivity electrode (600) with a metallic track (602), the end of the metallic track extending along the main direction (Z) to a position strictly between the substrate (242) and the working plane (Pt).

A system and method for identifying a stimulation location on a nerve is disclosed. The system includes an image-based navigation interface used to facilitate advancing a stimulation element within a patient body toward a target nerve stimulation site. Using the system one determines, separately for each potential target nerve stimulation site, a neuromuscular response of muscles produced upon applying a stimulation signal at the respective separate potential target stimulation sites. The image-based navigation interface is configured to display a graphic identification of which muscles were activated for each respective potential target nerve stimulation site upon applying the stimulation signal.

A physiological condition determination system and method can include: attaching a tag to animal tissue; emitting light into the animal tissue; detecting a first optical signal; extracting a first measurement of peripheral capillary oxygen saturation from the first optical signal; qualifying the first measurement of peripheral capillary oxygen saturation as a baseline; detecting a second optical signal with the optical sensor; extracting a second measurement of peripheral capillary oxygen saturation from the second optical signal; qualifying the second measurement of peripheral capillary oxygen saturation; storing the second measurement of peripheral capillary oxygen saturation as a tag feature set; storing a history; determining animal distress based on the difference between the second measurement of peripheral capillary oxygen saturation and the baseline; and sending an instruction to the tag.

An embodiment of a system for detecting and measuring biosignals preferably includes a biosignal sensor subsystem comprising a set of sensors configured to detect biosignals from the user, a sensor interface for pre-processing signals from the set of sensors and an electronics subsystem coupled to the biosignal sensor subsystem, the electronics subsystem configured to power the system and facilitate processing of biosignals detected by the system. An embodiment of a method for detecting and measuring biosignals of a user preferably includes inserting a payload into tissue of a user, navigating the payload through tissue of the user, and securing the payload to the user.

Systems and methods for applying and/or receiving electrical, magnetic, magnetoelectric, vibratory, or electromagnetic signals to biological tissues are described. In some embodiments, one or more of a body, a conductor, and an electrode may be provided. In some embodiments, a filament may be used as an electrode and may be placed in contact with a biological tissue portion. In some embodiments, a signal may be applied and/or received via the filament or other electrode.

Systems and methods for applying and/or receiving electrical, magnetic, magnetoelectric, vibratory, or electromagnetic signals to biological tissues are described. In some embodiments, one or more of a conductive tip and a base may be provided. The tip may include a channel and an outer surface that approximates a portion of a sphere or cone and may be sized to fit within a user's ear. The base may be configured to be coupled to the tip and may include a conductor in electrical contact with the tip such that an electrical signal may pass between the base and the tip.

Systems and methods for applying and/or receiving electrical, magnetic, magnetoelectric, vibratory, or electromagnetic signals to biological tissues are described. In some embodiments, one or more of a body, a conductor, an electrode, and a magnetic element may be provided. The conductor may be configured to be electrically coupled to at least one of a power source and a detector. The electrode may include a surface configured to contact a biological tissue portion and apply and/or receive an electrical signal to and/or from the biological tissue portion. The magnetic may selected from a group consisting of a magnet, a toroid, a conductive coil, a magnetic powder, and a magnetic fluid.

Systems and methods for obtaining and analyzing biological data are described. In some embodiments, a local user system may perform steps such as receiving a first message including an indication of a stimulus to be applied, applying the stimulus, detecting a biological response to the stimulus, generating first data including an indication of the detected biological response, and transmitting a second message comprising the first data.