Light and/or ultrasonic transducer device with sensor feedback for dose control

A system for delivering one or both of light and ultrasound across a skin surface to cause transdermal transport of a therapeutic or cosmetic composition through the skin surface, comprising:

• a plurality of flexible devices arranged in an array and held in proximity to each other by a flexible material, wherein each flexible device comprises one or both of:
• (a) a light source for producing light, wherein the light source comprises a flexible light emitter layer comprising one of an organic light emitting diode or a plurality of printed light emitting diodes, wherein the flexible light emitter layer is electrically coupled to a first conductive layer and a second conductive layer, wherein at least one of the first and second conductive layers is transparent;
• and (b) an ultrasonic transducer for producing ultrasound, wherein the ultrasonic transducer comprises a flexible ultrasound emitter layer comprising a piezoelectric coating, wherein the flexible ultrasound emitter layer is electrically coupled to a third conductive layer and a fourth conductive layer;
• at least one power source for driving the devices;
• at least one sensor in contact with the skin surface;
• a plurality of controllers each of which is electrically coupled to one of the devices;
• a main controller electrically couple to the sensor and each of the controllers, wherein the main controller is operable to receive sensor data from the sensor and dynamically control the devices through the controllers in response to the received sensor data.

A system for delivering one or both of light and ultrasound across a skin surface to cause transdermal transport of a therapeutic or cosmetic composition through the skin surface, comprising:

• a flexible device comprising one or both of:
• (a) a light source for producing light, wherein the light source comprises a flexible light emitter layer comprising one of an organic light emitting diode or a plurality of printed light emitting diodes, wherein the flexible light emitter layer is electrically coupled to a first conductive layer and a second conductive layer, wherein at least one of the first and second conductive layers is transparent;
• and (b) an ultrasonic transducer for producing ultrasound, wherein the ultrasonic transducer comprises a flexible ultrasound emitter layer comprising a piezoelectric coating, wherein the flexible ultrasound emitter layer is electrically coupled to a third conductive layer and a fourth conductive layer;
• a controller operable to control the device;
• and
• a communication module electrically coupled to the controller, wherein the communication module enables wired or wireless communication with an external control device, wherein the external control device executes a control application for externally controlling the controller.