Systems, devices, and methods are provided to assess connection quality between the electrodes of a bioelectrical signal measurement and/or electrical stimulation device and the tissue, typically skin, of the subject. A test signal is provided to a first electrode, voltage differences between the first electrode and additional electrodes are determined, an impedance of the first electrode is determined based on the voltages differences, and the determined impedance indicates connection quality. This process is typically repeated for all of the electrodes to determine connection quality. The user or subject can be alerted if the connection quality is poor, and the bioelectrical signal that is recorded can be provided with data points indicating connection quality during the signal recording.

Proposed are a method and device of determining optimal complex stimuli for tinnitus treatment. The method of determining the optimal complex stimuli for tinnitus treatment includes: identifying one or more sound stimuli selected by a user input from among a plurality of sound stimuli; identifying one or more electrical stimuli selected by the user input from among a plurality of electrical stimuli; determining a first complex stimulus sequence of complex stimuli in which the one or more selected sound stimuli and the one or more selected electrical stimuli are combined; and applying the complex stimuli to a user, wearing a tinnitus treatment device, according to the determined first complex stimulus sequence.

Discussed generally herein are methods and devices including or providing a patch system that can help in diagnosing a medical condition and/or provide therapy to a user. A body-area network can include a plurality of communicatively coupled patches that communicate with an intermediate device. The intermediate device can provide data representative of a biological parameter monitored by the patches to proper personnel, such as for diagnosis and/or response.

An electrical stimulation device is provided. The electrical stimulation device according to one embodiment of the present inventive concept is worn on the head so as to apply electrical stimulation to the brain, and comprises: a frame to be worn on the head; an electrode structure including an electrode part formed of a conductive member and a cover unit formed of an insulating member covering at least a part of the electrode part, and of which one end is connected to the frame; and a patch detachable from the electrode structure and making contact with the head when attached to the electrode structure.

Hand-controlled physiotherapy equipment contains: a first electrode and a second electrode which are connected with living creatures so as to form a closed loop, an electrical stimulation system, a signal receiving unit, and a signal identification unit. The electrical stimulation system includes a sensing unit. The signal receiving unit is connected with the sensing unit in a wired manner or a wireless manner, the signal identification unit is configured to transform loop signals into time series signals, wherein when each of the time series signals has a specific interruption signal and a specific recovery signal, each time series signal triggers a mode adjustment signal in a control module. The control module includes a predetermined comparison database, and the comparison database has multiple set modes, wherein the multiple set modes respectively have multiple interruption signals and multiple recovery signals.

A device and means to decrease the pain associated with cancer biopsies procedures The device uses anesthetic injections and electrical currents of both positive or negative polarity, or alternating current. The device can be incorporated into existing biopsiy devices. Application on breast cancer biopsies and other types of biopsies.

A customized electrical stimulation providing system includes: an electrical stimulation request input unit receiving electrical stimulation mode selection information; an electrical stimulation control unit setting an electrical stimulation control variable according to the electrical stimulation mode selection information and generating a control signal; and an electrical stimulation providing means receiving the control signal generated by the electrical stimulation control unit and providing electrical stimulation, wherein the electrical stimulation mode selection information includes at least one of a beauty mode (muscle loss mode) and a muscle strengthening mode.

Disclosed is a muscle stimulation system, comprising a wearable garment including a plurality of electrodes, and a processor; wherein the processor is configured to define one or more regions of interest (ROI) for electrode activation via a subset of the plurality of electrodes, and provide electrical muscle stimulation, via the subset of the plurality of electrodes, to the ROI.

A system for electrical brain stimulation including a plurality of electrodes arranged around the patient's brain (either directly or indirectly through layers of dura, skull or skin) such that axes connecting each electrode pair intersect at a predetermined focal point, and a ground-independent switching circuit configured to selectively activate and deactivate electrodes via a plurality of ground-independent switches. Electrodes are sequentially activated and deactivated.

The present invention is a system and method for providing an electrical stimulation signal to condition the pelvic wall muscles of a user and demonstrate to the user the proper muscle usage. The system and method also provides a system for measuring the users muscle response. The system and method also provides an entertaining interaction environment which encourages the user to perform self-initiated conditioning exercises.