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US 2010/0137846 A1Published application
Methods and systems for capturing and removing urinary stones from body cavities
AssigneePercutaneous Systems, Inc.
InventorsRupesh Desai, Steven Yee, Robert S. Behl
Life of this patent
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Abstract
A stone capture device comprises a shaft with a deployable sweeping structure at its distal end. The shaft is adapted to be removably placed over and connected to a conventional ureteroscope. The combination of the stone capture device and ureteroscope can be introduced into the urinary tract to capture, fragment, and remove stones from the bladder and kidney.
Claims43
A method for removing a stone from a body cavity selected from the group consisting of a kidney and a bladder, said method comprising:
- introducing a viewing scope having an optical element at its distal end into an open volume of the body cavity;
- deploying a perforate sweeping structure from the distal end of the viewing scope;
- steering and advancing the viewing scope within the open volume to engage the perforate sweeping structure against the stone and urge the stone against an entrapping structure to capture the stone between the sweeping structure and the entrapping structure;
- and
- applying energy through the viewing scope against the captured stone to break up the stone and produce stone fragments.
2 more elements
A stone capture device for use with a steerable viewing scope, said device comprising:
- a sheath having a distal end, a proximal end, and a lumen positionable over a shaft of the viewing scope;
- and
- a perforate sweeping structure extending distally from the distal end of the sheath, wherein the perforate sweeping structure is shiftable between a tubular configuration with a width about the same as that of the sheath and a concave configuration which increases in width in the distal direction, wherein a distal end of the steerable viewing scope is disposed within the concave sweeping structure when deployed.
Dependencies are inferred from the claim text.