A deep intracranial electrode which comprises a conducting wires, an electrode contact, a connector and a nonelastic sleeve is provided, one end of the conducting wires connected to the electrode contact, the other end connected to the connector; the nonelastic sleeve sheathes around the conducting wires, and one end of the nonelastic sleeve is capable of being connected to the connector, the other end connected to the fixing nut which is fixed to a skull. When the deep intracranial electrode is under a pulling force, the fixing nut may avoid the nonelastic sleeve from moving, thereby avoiding the deep intracranial electrode from being pulled out.

An example of a system for delivering neurostimulation may include a programming control circuit and a stimulation control circuit. The programming control circuit may be configured to generate stimulation parameters controlling delivery of the neurostimulation according to a stimulation configuration. The stimulation control circuit may be configured to specify the stimulation configuration, and may include volume definition circuitry and stimulation configuration circuitry. The volume definition circuitry may be configured to determine one or more test volumes, determine a clinical effect resulting from the one or more test volumes each being activated by the neurostimulation, and determine a target volume using the determined clinical effect. The stimulation configuration circuitry may be configured to generate the specified stimulation configuration for activating the target volume.

Embodiments may provide multimodal diagnostic systems and methods for detecting neurological disorders, such as Alzheimer's disease (AD), Parkinson's disease (PD), depression, PTSD, schizophrenia, dementia and many others. For example, a system for monitoring brain activity may comprise a plurality of sensors, each adapted to monitor a physical or physiological parameter and output a signal representing the monitored physical or physiological parameter, wherein the plurality of sensors includes at least one sensor configured to monitor a brain activity parameter, a data collection device adapted to receive the plurality of signals from the plurality of sensors and to process the signals to form digital data representing the monitored physical or physiological parameters, and a data processing device adapted to process digital data representing the monitored physical or physiological parameters to determine presence of a neurological disorder or condition.

Antibacterial coatings and methods of making the antibacterial coatings are described herein. A first branched polyethylenimine (BPEI) layer is formed and a first glyoxal layer is formed on a surface of the BPEI layer. The first BPEI layer and the first glyoxal layer are cured to form a crosslinked BPEI coating. The first BPEI layer can be modified with superhydrophobic moieties, superhydrophilic moieties, or negatively charged moieties to increase the antifouling characteristics of the coating. The first BPEI layer can be modified with contact-killing bactericidal moieties to increase the bactericidal characteristics of the coating.

Disclosed are devices, electrodes, systems, methods, and other implementations, including a system that includes a subdural sound comprising an elongated structure configured to be placed within a subdural space of a brain area of a patient, and an electrode comprising an elongated body, a plurality of electrical contacts disposed on a substantially flat first side of the elongated body, and a soundage channel defined along a longitudinal axis of the electrode and open at opposite ends. The soundage channel at the leading end of the electrode is fitted on the trailing end of the elongated structure of the subdural sound so as to be advanced, when the subdural sound is placed within the subdural space, to a target site in the subdural space for tangential placement on target tissue in the subdural space of the brain area.

Amyloid fibers-based electrodes and apparatuses comprising the same. Additionally, methods for manufacturing amyloid fibers-based electrodes.

This document discusses a medical system for coupling to one or more implantable electrodes. The medical system includes a sensing circuit, memory, and processing circuitry. The sensing circuit is configured to sense one or more neural signal representative of neural activity of a subject when connected to an implantable electrode of the one or more implantable electrodes, and the memory is to store a reference signal that is representative of a neural response associated with a state of arousal at or near an anatomical location of the implantable electrode. The processing circuitry is configured to compare the one or more sensed neural signals to the reference signal, and to determine a depth of anesthesia of the subject according to the comparison of the one or more sensed neural signals and the reference signal.

Embodiments may provide multimodal diagnostic systems and methods for detecting neurological disorders, such as Alzheimer's disease (AD), Parkinson's disease (PD), depression, PTSD, schizophrenia, dementia and many others. For example, a system for monitoring brain activity may comprise a plurality of sensors, each adapted to monitor a physical or physiological parameter and output a signal representing the monitored physical or physiological parameter, wherein the plurality of sensors includes at least one sensor configured to monitor a brain activity parameter, a data collection device adapted to receive the plurality of signals from the plurality of sensors and to process the signals to form digital data representing the monitored physical or physiological parameters, and a data processing device adapted to process digital data representing the monitored physical or physiological parameters to determine presence of a neurological disorder or condition.

A subdural sensor includes: a substrate formed of a flexible material; and at least one type of sensor part mounted on the substrate. The substrate has an elongated shape, and includes: a sensor area in which the sensor part is mounted and a wiring pattern connected to the sensor part is formed; a wiring area contiguous with the sensor area, the wiring pattern extending in the wiring area; and a connector area contiguous with the wiring area, the connector area being an area on which a connector to be connected to the wiring pattern extending from the wiring area is mounted. A tip part of the sensor area has a planar shape that curves convexly toward an outer periphery, and a side shape that curves toward a first surface, the first surface being on the side of a dura mater when the subdural sensor is inserted into the subdural space.

Brain drainage device having a rod-shaped hollow body with an inner drainage channel for insertion through the cranium into the brain, a first sensor arrangement with at least one sensor for measuring a physical parameter, and a signal interface; wherein the rod-shaped hollow body has a first region A which, in the applied state, is designed to protrude into the ventricle situated in the brain; wherein the rod-shaped hollow body has a second region B, which is arranged proximally from the first region, wherein the second region is designed to lie in the region of the brain mass in the applied state; wherein the first sensor arrangement is arranged in the second region in order to measure a physical parameter of the brain mass; wherein the first sensor arrangement is connected to the signal interface such that measurement data determined by the first sensor arrangement are transmitted to a measuring system that is to be connected.