Stone expulsion stent

Details Stone expulsion stent Stone expulsion stent

1991-07-26

1992-07-14

Pellegrino, Stephen C.

Surgery

Instruments

Means for concretion removal

606108, 604 93, 604264, A61M 100, A61M 2500

Patent

active

051299100

ABSTRACT:
A stent of the present invention includes a tubular body having a helical-like ridge along at least a portion of its outer wall for expelling masses within a body passage. The helical-like ridge includes a smooth, convex superior surface having a beveled central portion, and a concave inferior surface.

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