Device for laying percutaneous of a guide tube for a nephroscope in the kidney surgery

摘要

The invention consists of a fitting device of the guide tube 1 for a nephroscope consisting of a puncture needle 2, provided with a mandrel of the shutter 3, on which slides a device for spreading the inflatable 4; this latter comprises, in particular, a balloon 25 which is positioned by sliding along the puncture needle 2, which is previously inserted in the kidney to a patient, the operation being facilitated by a trocar formed of cutting blades 19 which enlarges the opening while avoiding tearing of the flesh, the balloon is then inflated in order that the inflatable broadening device 4 can be used to turn of the guide means associated with a guide tube for nephroscope during its putting in place in the kidney, the patient.