Abstract: An active electrode has an electrode for sensing an electric potential and generating an input signal, and a shield placed near the electrode but being electric insulated from the electrode. An integrated amplifier (10) has an input connected to the at least one electrode for receiving the input signal, and providing a buffered path outputting a buffered output signal. The shield being connected to the output of the integrated amplifier to actively drive the electrical potential of the shield, thereby providing an active shielding of the electrode. The buffered path includes a first mixer (11) in front of the integrated amplifier for frequency shifting the input signal from a basic frequency range to a higher frequency range, and a second mixer (12) on the output of the integrated amplifier for frequency shifting the amplified signal from the higher frequency range back to the basic frequency range. The active electrode may be used for recording EEG signals.

Abstract: An audio system adapted to provide an auditory stimulation for inducing neural oscillations in a user during sleep.

Abstract: A wearable EEG monitor for continuously monitoring the EEG of a user through capacitive coupling to an ear canal of a user includes an ear insert (1) for positioning within the human ear canal, having at least two capacitive electrodes (16) for recording a signal. The electrodes are coated with a dielectricum for electrical insulation. The electrodes are connected to an amplifier (17). The amplifier has an input impedance matched to the impedance of the electrodes. The invention further provides a method of monitoring brain waves.

Abstract: An ear device for arrangement at an ear of a person and provided with at least two electrodes for having skin contact and detecting a bioelectrical signal when in use, the ear device includes a deformable ear canal part adapted to be arranged in an ear canal of the person, and an external ear part adapted to be arranged at the ear external to the ear canal and being provided with at least one external ear electrode for detecting a bioelectrical signal, the external ear part includes at least one bendable arm which is connected to the ear canal part and is adapted to exert a pressure such that the at least one external ear electrode is pressed against the skin when in use.

Abstract: A system for adjusting blood glucose level including an insulin delivery device configured to release insulin into the body of a person, and an EEG monitor having an EEG sensing part including EEG electrodes. The EEG monitor can be arranged in the ear region of the person with the EEG sensing part arranged subcutaneously at the scalp or arranged in the ear canal. The EEG monitor includes an EEG signal processor arranged at the ear and adapted for identifying onset of hypoglycemia. The system further includes a wireless link between the EEG monitor and the insulin delivery device. The EEG monitor is configured to submit a warning signal to the insulin delivery device if an upcoming onset of hypoglycemia is identified. The warning message will cause the insulin delivery device to restrict insulin delivery for a predetermined time, and a warning is provided to the person or to a caregiver.

Abstract: An EEG monitor (1) including electrodes (17) adapted for capturing EEG signals and a signal processing part (11) which is adapted for analyzing and classifying the EEG signals captured. The signal processing part (11) is adapted for identifying electrical signals captured by the electrodes (17) that are derived from muscular activity related to the process of chewing.

Abstract: The invention relates to an electrode for detecting a bioelectrical signal, for example EEG, on a skin surface. The electrode comprises a coating comprising iridium oxide, where the coating has a nanostructured surface pattern providing for a capillary and hydrophilic effect when in use.

Abstract: An ear plug (200), and a method of producing an ear plug, which includes a shell (206) with at least one electrode (201-205) adapted for measuring brain wave signals, the electrode (201-205) being connected to a processor for processing the measured signals, wherein the contours of the outer surface of the ear plug (200) and the electrode (201-205) are individually matched to at least part of the ear canal and the concha of the user.

Abstract: An EEG monitor adapted for being arranged in the ear region of a person and including a housing (11) holding a power supply (25) and an EEG signal processor (10). The EEG monitor (5) includes an EEG sensing part (12) having EEG electrodes (17). The EEG sensing part (12) is adapted for arrangement subcutaneously at the scalp or in the ear canal of the person, and the housing (11) is individually shaped to fit behind or above an ear of the person and into the cleft between a pinna and the skull of the person.

Abstract: An EEG monitoring apparatus (2) adapted to be carried continuously by a person being monitored comprises means adapted for measuring at least one EEG signal from the person carrying the apparatus and a signal processing means for analysing said at least one EEG signal and adapted to identify or predict predetermined biological incidents in said person based on said analysis. The EEG monitoring apparatus (2) further comprises a decision means adapted to decide when information is to be presented to said person and a message selection means for selecting a voice message providing said person with information, as well as an acoustic transducer adapted for presenting the selected voice message to the person. The invention also provides a method for presenting voice messages.

Abstract: An ear plug for arrangement in an ear canal includes at least two electrodes for detecting an EEG signal from a skin surface when the ear plug is arranged in the ear canal. The ear plug further includes a housing having an outer wall made from a resilient material, and a signal acquisition circuit. The electrodes are provided with a skin contact part arranged on an outside surface of the housing and connected through the outer wall of the housing to a supporting member on the inner part of the housing. The skin contact part and the supporting member are arranged for clamping the outer wall.

Abstract: A personal wearable EEG monitor comprising an implantable electrode part with at least two electrodes (2,3) for measuring an EEG signal of a person. The electrode part comprises an electronic circuit arranged in a housing (1) with each electrode arranged external to the housing. The electrode part comprises a testing circuit for testing functionality of the electrode part. The testing circuit comprises a capacitor (9) coupled in serial connection to at least one of the electrodes, and a test signal generator for providing a test signal. The EEG monitor is adapted for analyzing the signal resulting from the signal generator for identification of faults in the electrode part. The invention further provides a method for detecting a leak current in an implanted EEG monitor part.

Abstract: An ear device for arrangement at an ear of a person and provided with at least two electrodes for having skin contact and detecting a bioelectrical signal when in use, the ear device includes a deformable ear canal part adapted to be arranged in an ear canal of the person, and an external ear part adapted to be arranged at the ear external to the ear canal and being provided with at least one external ear electrode for detecting a bioelectrical signal, the external ear part includes at least one bendable arm which is connected to the ear canal part and is adapted to exert a pressure such that the at least one external ear electrode is pressed against the skin when in use.

Abstract: An ear plug (1) for arrangement in an ear canal includes at least two electrodes (3) for detecting an EEG signal from a skin surface when the ear plug is arranged in the ear canal. The ear plug further includes a housing having an outer wall (2) made from a resilient material, and a signal acquisition circuit (23). The electrodes (3) are provided with a skin contact part (4) arranged on an outside surface of the housing and connected through the outer wall (2) of the housing to a supporting member (5) on the inner part of the housing. The skin contact part (4) and the supporting member (5) are arranged for clamping the outer wall (2).

Abstract: An EEG monitor adapted for being arranged in the ear region of a person and including a housing (11) holding a power supply (25) and an EEG signal processor (10). The EEG monitor (5) includes an EEG sensing part (12) having EEG electrodes (17). The EEG sensing part (12) is adapted for arrangement subcutaneously at the scalp or in the ear canal of the person, and the housing (11) is individually shaped to fit behind or above an ear of the person and into the cleft between a pinna and the skull of the person.

Abstract: An EEG monitor (1) including electrodes (17) adapted for capturing EEG signals and a signal processing part (11) which is adapted for analyzing and classifying the EEG signals captured. The signal processing part (11) is adapted for identifying electrical signals captured by the electrodes (17) that are derived from muscular activity related to the process of chewing.

Abstract: A system and a method for providing a network connection for a computer device (21) to a wearable EEG monitoring module (1) having a gateway to the Internet (16), and comprising a patient record server (25) accessible over the Internet, and providing an electronic patient medical database (26), each patient record including a unique identity for an associated wearable EEG monitoring module; a control server (19) providing an EEG module connection register (19a) including the unique identity of EEG monitoring modules associated with current connection information; and a network connection handling element (43) being adapted for detecting the presence of a wireless connection between the wearable EEG monitoring module (1) and the gateway, and for uploading current connection information to the control server (19).

Abstract: A system for adjusting blood glucose level including an insulin delivery device configured to release insulin into the body of a person, and an EEG monitor having an EEG sensing part including EEG electrodes. The EEG monitor can be arranged in the ear region of the person with the EEG sensing part arranged subcutaneously at the scalp or arranged in the ear canal. The EEG monitor includes an EEG signal processor arranged at the ear and adapted for identifying onset of hypoglycemia. The system further includes a wireless link between the EEG monitor and the insulin delivery device. The EEG monitor is configured to submit a warning signal to the insulin delivery device if an upcoming onset of hypoglycemia is identified. The warning message will cause the insulin delivery device to restrict insulin delivery for a predetermined time, and a warning is provided to the person or to a caregiver.

Abstract: An active electrode has an electrode for sensing an electric potential and generating an input signal, and a shield placed near the electrode but being electric insulated from the electrode. An integrated amplifier (10) has an input connected to the at least one electrode for receiving the input signal, and providing a buffered path outputting a buffered output signal. The shield being connected to the output of the integrated amplifier to actively drive the electrical potential of the shield, thereby providing an active shielding of the electrode. The buffered path includes a first mixer (11) in front of the integrated amplifier for frequency shifting the input signal from a basic frequency range to a higher frequency range, and a second mixer (12) on the output of the integrated amplifier for frequency shifting the amplified signal from the higher frequency range back to the basic frequency range. The active electrode may be used for recording EEG signals.

Abstract: A personal wearable monitor for monitoring a bio-electrical signal from a person. The monitor is adapted for detecting an upcoming seizure, and for providing an acoustical information signal. The monitor is provided with a first speaker (13) for providing the information signal, and a second speaker (14) is adapted for functioning as a microphone in testing if said first speaker is capable of providing a sound. The second speaker is also a back-up speaker. The monitor is adapted for providing a notification in the event that the second speaker (14) does not detect the generated sound from the first speaker (13).