METHOD AND DEVICE FOR INVASIVE OR ENDOSCOPIC THERAPY USING ULTRASONIC AND LASER ENERGY

摘要

Described is an endoscopic instrument which transmits simultaneously acoustic energy from a proximal source (30) and laser radiation from a laser-therapy laser (17) through flexible waveguides (3) into the interior of the body. The power and frequency of the acoustic energy lie in a band sufficient to cut tissue (16) and the therapy laser (7) operates preferably in the near infra-red. The waveguides are quartz-glass fibres (3) which can convey both acoustic and light energy.