PROBLEM TO BE SOLVED: To provide an approach to treatment of lithiasis.SOLUTION: The present invention relates to a method of using peristalsis to force a polymer plug through a mammalian lumen, thereby removing any calculi and/or calculi fragments present in the lumen. In one embodiment, the method is used as an alternative to conventional lithotripsy. In another embodiment, the method is used in conjunction with lithotripsy, thereby removing small calculi fragments that result from such procedures.SELECTED DRAWING: None
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