Patent ID: 8562625

Claim:
A caculi breakup apparatus for breaking up calculi in urinary intracavity, the apparatus comprises: an endoscope, a driving assembly, and a milling assembly configured to be inserted into the urinary intracavity so as to mill the calculi in the intracavity into powder, thereby discharging the milled calculi powder out of the body, wherein the calculi breakup apparatus further comprises attachments of the endoscope, an energy supply device and a control host, wherein: the milling assembly is in cooperation with the endoscope with its attachments, one end of the milling assembly is connected to a driving unit mounted in the driving assembly, a sensitive switch or a pressure sensor is connected to the control host, said driving assembly comprises an endoscope bayonet, an outer support, a sliding bar, an inner support, a snap spring, an abutting bar, the sensitive switch or pressure sensor, an inner spring, and an inner spring biasing force adjuster, wherein the endoscope bayonet is mounted outside the outer support, the inner support and the outer support are cooperated with each other for mounting the snap spring, the abutting bar, the inner spring, the inner spring biasing force adjuster, the sensitive switch or pressure sensor, the driving unit and an outer spring, the inner spring and the inner spring biasing force adjuster are adapted for adjusting a thrust of the abutting bar; and the outer spring is mounted between the outer support and the inner support.