Softening expanding ureteral stent
US5599291A · kind A · utility
311Cited by
12References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 4, 1993 |
| Grant date | Feb 4, 1997 |
| Priority date | — |
| Expiry date | Jan 4, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0293
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A ureteral stent comprising an elongated member having a proximal end portion and a distal end portion joined by a body portion. The elongated member has an initial outer diameter. A retention construction serves for retaining the member within the ureter. The member is formulated of a physiologically acceptable polymer capable of hydrating and expanding from the initial member outer diameter to form a final member outer diameter. The stent can assume differing shapes and can exhibit different degrees of softening at different places along its length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.