CALCULUS RETRIEVING/REMOVING DEVICE AND METHOD

摘要

A method of removing/retrieving calculus in a renal pelvis includes moving a renal cover part along a ureter toward the renal pelvis, introducing the renal cover part into the renal pelvis, positioning the renal cover part in the renal pelvis so that the renal cover part covers one part of the renal pelvis, while an other part of the renal pelvis is not covered by the renal cover part, introducing fluid into the other part of the renal pelvis, while the one part of the renal pelvis is covered by the renal cover part, to cause the calculus in the other part of the renal pelvis to be washed-out of the renal pelvis, and moving the renal cover part out of the renal pelvis and into the ureter.

主权项

1. A method of removing calculus in a renal pelvis, the method comprising:
moving an elongated device along a ureteral lumen of a ureter toward the renal pelvis, the elongated member including a renal cover part and an irrigation port; introducing both the renal cover part and the irrigation port into the renal pelvis; deploying the renal cover part to cover one part of the renal pelvis, while an other part of the renal pelvis is not covered by the renal cover part; washing the other part of the renal pelvis that is not be covered by the renal cover part by discharging fluid from the irrigation port to move the calculus in the renal pelvis; and releasing the renal cover part and withdrawing the elongated device, together with the renal cover part, from the renal pelvis.