Stone expulsion stent
US5129910A · kind A · utility
220Cited by
15References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 26, 1991 |
| Grant date | Jul 14, 1992 |
| Priority date | — |
| Expiry date | Jul 26, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/1078
- WIPO fieldMedical technology
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.