Patent ID: 9615842
Date: 2017-04-11
CPC Classifications: A61B,A61M

Claim:
1. A method of retrieving calculus in a renal pelvis comprising: moving an elongated member toward the renal pelvis, the elongated member including an outlet, an inlet and a retrieval part at a distal side of the elongated member; positioning the outlet and the inlet of the elongated member in the renal pelvis; producing fluid flow in the renal pelvis by suctioning fluid from the inlet and exhausting the fluid out of the outlet, the fluid being displaced from an outside of the retrieval part, and into and through the retrieval part, while the calculus located in the renal pelvis enters the retrieval part and remains in the retrieval part; and withdrawing the elongated member from the renal pelvis while the calculus is in the retrieval part after retrieving the calculus by way of the retrieval part.