Epoxy adhesives include a latent curing agent, a reactive toughener having capped isocyanate groups, and certain urea compounds. The toughener is made by chain extending and capping a mixture of isocyanate-terminated prepolymers. The prepolymers include an isocyanate-terminated polyether and an isocyanate-terminated diene polymer. The adhesives have excellent wash-off resistance and excellent ability to adhere to oily substrates.

A stimulation electrode assembly configured to be positioned relative to a patient for an operative procedure is disclosed. The stimulation electrode may be a connection or self-contained component to contact a portion of a nerve. The stimulation electrode may provide or receive a signal to and/or from the nerve to assist in testing integrity of the nerve.

The present invention is directed to a physiological recording device, or other types of sensors to detect a biopotential, and more particularly, a physiological recording electrode that can be used without skin preparation or the use of electrolytic gels. The invention is further directed to the configurations of structures on the physiological recording electrode's lower surface. The structures having a length, width, and height, which are capable, at least in part, of transmitting an electric potential from the skin which can be measured. The structures may or may not limit the depth of application, and/or anchor the electrode or other device during normal application, and/or allow for uniform application of the electrode or other device over unprepared skin.

An apparatus and method for detecting and reducing bruxism is described. The method includes the placement of a pressure resistive (or piezoelectric) sensor on the skin above the temporalis muscle in order to detect grinding of the teeth based on movement of the temporalis muscle. Alternatively, a pressure resistor could be used in the ear. The pressure resistive sensor could be made of carbon-impregnated polyolefin. Once bruxism is detected, a patient is notified and uses bio-feedback to curtain the grinding of the teeth.

Aspects provide a system including a wearable audio device. The system is configured to determine one or more states of a subject using electrodes positioned on the wearable audio device and in contact with the subject's body. Three electrodes on the wearable audio device are configured to collect any combination of EMG, EOG, ECG/EKG. The system is configured to determine if the subject is fatigued, attentive, anxious, or stressed. The system determines the subject's state without use of a camera. In addition to determining one or more states of the subject, the subject can control the audio device based on a pattern of pupil movements. According to aspects, eye location determined using collected signals are used to adjust and enhance an output of an augmented reality application.

A system for detecting bioelectrical signals of a user comprising: a set of sensors configured to detect bioelectrical signals from the user, each sensor in the set of sensors configured to provide non-polarizable contact at the body of the user; an electronics subsystem comprising a power module configured to distribute power to the system and a signal processing module configured to receive signals from the set of sensors; a set of sensor interfaces coupling the set of sensors to the electronics subsystem and configured to facilitate noise isolation within the system; and a housing coupled to the electronics subsystem, wherein the housing facilitates coupling of the system to a head region of the user.

Methods and systems for obtaining and analyzing electromyography responses of electrodes of an implanted neurostimulation lead for use neurostimulation programming are provided herein. System setups for neural localization and/or programming include a clinician programmer coupleable with a temporary or permanent lead implantable in a patient and at least one pair of EMG sensing electrodes minimally invasively positioned on a skin surface or within the patient. The clinician programmer is configured to determine a plurality of recommended electrode configurations based on thresholds and EMG responses of the plurality of electrodes and rank the electrode configuration according to pre-determined criteria. The clinician programmer further includes graphical user interface on which the plurality of recommended electrode configurations are displayed for modification and/or selection by a clinician in programming an IPG or EPG coupled with the lead to apply a neurostimulation treatment according to the selected electrode configuration.

The present invention discloses a low-cost, user-friendly and portable point-of-care system for detection of physical stress at different parts of body of a human subject. The prototype comprises a sensor arrangement, a processing unit, and a power supply. The sensor arrangement consists of a flexible and soft substrate preferably made of electrically conducting layer coated polymer facilitating detection of electric field potential of a part of a living body of the human subject such as finger-tip, tip-toe, wrist, or tongue, once they come in contact with said sensor arrangement. The sensor arrangement generates an electrical signal, which can be correlated to the stress level of the body parts at a very high-precision. The electrical signal generated by the sensor arrangement is sent to the processing unit, which may be further transmitted wirelessly to a mobile android application for the display of the results. The present system is useful for the early detection of many diseases or disorders related to heart, nerves and muscles, which can be correlated with the symptom of increase in the stress at different body parts such as finger-tip, tip-toe, wrist, or tongue, among others.

An apparatus, system, and method are disclosed for mapping the location of a nerve. The apparatus includes at least one stimulation module, a stimulation detection module, a distance module, and a mapping module. The stimulation module stimulates a nerve with an electrical stimulation current from at least one stimulation electrode. A stimulation detection module detects a muscle reaction resulting from stimulation of the nerve by the at least one stimulation electrode. The distance module uses information from the at least one stimulation electrode and from the stimulation detection module to calculate a distance between the at least one stimulation electrode and the nerve. The mapping module maps a location on the nerve using at least two distances calculated by the distance module and position information of the at least one stimulation electrode for each of the at least two distances calculated.

An apparatus comprising an electromyographic (EMG) control module is disclosed. The apparatus includes an electromyographic (EMG) control module configured to receive EMG information generated by an individual; identify a gesture class based on the EMG information, and train using the received EMG information and the gesture class. The gesture class corresponds to an intended gesture made by the individual.