A stone retrieval suction device facilitates the retention and then relocation and/or removal of objects disposed in a patient's urinary system. The device includes an elongated member for placement in a channel of a flexible ureteroscope. The elongated member defines a suction passageway which extends...http://www.google.es/patents/US7883515?utm_source=gb-gplus-sharePatente US7883515 - Medical device
