TISSUE VISUALIZATION AND MODIFICATION DEVICES AND METHODS

Aspects of the invention include minimally invasive tissue modification systems. Embodiments of the systems include a minimally invasive access device having a proximal end, a distal end and an internal passageway. Positioned among the distal ends of the devices are a visualization element and an illumination element. Also provided are methods of using the systems in tissue modification applications, as well as kits for practicing the methods of the invention. Internal tissue visualization devices having RF-shielded visualization sensor modules are also provided. Minimally invasive RF tissue modulation devices are provided. In some aspects, the devices include a hand-held control unit and an elongated member. In some aspects, RF tissue modulation devices are provided and include an adapter that operably couples to a hand-held medical device. The adapter generates RF energy for delivery to a plasma generator on an elongated member.