Patent ID: 9636123
Date: 2017-05-02
CPC Classifications: A61B

Claim:
1. A calculus retrieving device for removing calculus in a renal pelvis, the calculus retrieving device comprising: an elongated member possessing a longitudinal extent and including a lumen extending along the longitudinal extent of the elongated member, the elongated member possessing a distal end portion; a plunger positioned in the lumen of the elongated member and axially movable in a forward direction and a rearward direction along the lumen of the elongated member; an enclosure fixed to the elongated member at a distal end portion of the elongated member so that the elongated member and the enclosure are movable together as a unit, the elongated member and the enclosure together being sized to be positioned in a renal pelvis; an outlet in selective communication with the lumen and through which fluid in the lumen is discharged into the renal pelvis during axial movement of the plunger in the forward direction; an inlet in selective communication with the lumen and through which fluid in the renal pelvis is drawn into the lumen during axial movement of the plunger in the rearward direction; and the enclosure enclosing an interior configured to receive the calculus in the renal pelvis that is drawn toward the inlet together with the fluid in the renal pelvis during the axial movement of the plunger in the rearward direction.