A cosmetic device includes: a body from which a first head portion and a second head portion protrude in directions different from each other; a front assembly disposed on the first head portion; a rear assembly disposed on the second head portion; and an iontophoresis electrode disposed to be spaced apart from the front assembly and the rear assembly on an outer surface of the body. The front assembly includes an inner electrode, an outer electrode disposed outside the inner electrode, and an ultrasonic vibrator disposed on a rear surface of the inner electrode to generate ultrasonic waves. The rear assembly includes a thermoelectric element and a cooling cover cooled by the thermoelectric element.

A cosmetic device includes: a body from which a first head portion and a second head portion protrude in directions different from each other; a front assembly disposed on the first head portion; a rear assembly disposed on the second head portion; and an iontophoresis electrode disposed to be spaced apart from the front assembly and the rear assembly on an outer surface of the body. The front assembly includes an inner electrode, an outer electrode disposed outside the inner electrode, and an ultrasonic vibrator disposed on a rear surface of the inner electrode to generate ultrasonic waves. The rear assembly includes a thermoelectric element and a cooling cover cooled by the thermoelectric element.

One aspect of the present disclosure relates a system that can quickly and reversibly block conduction in a nerve. The system can include a first nerve block modality that provides heat to the nerve to block conduction in the nerve. For example, the heat can provide the quick nerve block. The system can also include a second nerve block modality that provides an electrical signal to the nerve to block the conduction in the nerve. For example, the electrical signal can provide the reversibility. In some instances, the heat can be provided by an infrared light signal and the electrical signal can be provided by a kilohertz frequency alternating current (KHFAC) signal or a direct current (DC) signal.

One aspect of the present disclosure relates a system that can quickly and reversibly block conduction in a nerve. The system can include a first nerve block modality that provides heat to the nerve to block conduction in the nerve. For example, the heat can provide the quick nerve block. The system can also include a second nerve block modality that provides an electrical signal to the nerve to block the conduction in the nerve. For example, the electrical signal can provide the reversibility. In some instances, the heat can be provided by an infrared light signal and the electrical signal can be provided by a kilohertz frequency alternating current (KHFAC) signal or a direct current (DC) signal.

Methods for creating a desired tissue effect. An RF electrode is provided that includes a conductive portion. The RF electrode is coupled to a fluid delivery member that delivers a cooling fluidic medium to a back surface of the RF electrode. A dielectric is positioned on a skin surface. The RF electrode is coupled with the dielectric. RF energy is delivered from the RF electrode and the dielectric to the skin surface.

Methods for creating a desired tissue effect. An RF electrode is provided that includes a conductive portion. The RF electrode is coupled to a fluid delivery member that delivers a cooling fluidic medium to a back surface of the RF electrode. A dielectric is positioned on a skin surface. The RF electrode is coupled with the dielectric. RF energy is delivered from the RF electrode and the dielectric to the skin surface.

A thermoelectric driving wearable system includes a thermoelectric device and an electrical stimulating assembly. The thermoelectric device includes two thermal interface material layers and a thermoelectric converting layer. The two thermal interface material layers are configured for contacting a heat source and a cold source, respectively. The thermoelectric converting layer is located between the two thermal interface material layers and configured for generating an electric energy according to a temperature difference between the heat source and the cold source. The electrical stimulating assembly is electrically connected to the thermoelectric device and configured for being disposed at a skin surface, and the electrical stimulating assembly receives the electric energy and transmits a current to a stimulated region.

A thermoelectric driving wearable system includes a thermoelectric device and an electrical stimulating assembly. The thermoelectric device includes two thermal interface material layers and a thermoelectric converting layer. The two thermal interface material layers are configured for contacting a heat source and a cold source, respectively. The thermoelectric converting layer is located between the two thermal interface material layers and configured for generating an electric energy according to a temperature difference between the heat source and the cold source. The electrical stimulating assembly is electrically connected to the thermoelectric device and configured for being disposed at a skin surface, and the electrical stimulating assembly receives the electric energy and transmits a current to a stimulated region.

Systems having energy delivering thermocouple assemblies for achieving neuromodulation by intravascular access are disclosed herein. One aspect of the present technology, for example, is directed to a treatment device having a therapeutic assembly that includes an elongated tubular shaft having a pre-formed spiral shape when in a deployed state (e.g., a radially expanded, generally spiral/helical shape) and a thermocouple assembly helically wrapped about the shaft. In one embodiment, the thermocouple assembly comprises first and second wires composed of dissimilar metals with the first wire including a plurality of exposed and insulated regions along the distal portion of the treatment device. The exposed regions of the first wire define a plurality of energy delivery portions positioned to deliver electrical energy (e.g., RF energy, pulsed energy, etc.) to target tissue adjacent a wall of an artery (e.g., a renal artery) to heat or otherwise electrically modulate neural fibers that contribute to physiological function (e.g., renal function).

Systems having energy delivering thermocouple assemblies for achieving neuromodulation by intravascular access are disclosed herein. One aspect of the present technology, for example, is directed to a treatment device having a therapeutic assembly that includes an elongated tubular shaft having a pre-formed spiral shape when in a deployed state (e.g., a radially expanded, generally spiral/helical shape) and a thermocouple assembly helically wrapped about the shaft. In one embodiment, the thermocouple assembly comprises first and second wires composed of dissimilar metals with the first wire including a plurality of exposed and insulated regions along the distal portion of the treatment device. The exposed regions of the first wire define a plurality of energy delivery portions positioned to deliver electrical energy (e.g., RF energy, pulsed energy, etc.) to target tissue adjacent a wall of an artery (e.g., a renal artery) to heat or otherwise electrically modulate neural fibers that contribute to physiological function (e.g., renal function).