Radially expanding ureteral device
US6709465B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2001 |
| Grant date | Mar 23, 2004 |
| Priority date | — |
| Expiry date | Jan 5, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/1089
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A ureteral device is provided for facilitating stone passage through a ureter or duct. An exemplary ureteral device includes a flexible, elongate body that defines a plurality of cages along the body. In a contracted state the cages have a reduced diameter. When an activation force is applied, the cages transform to an expanded state, thereby defining a plurality of void spaces. The void spaces are configured to receive an obstruction, such as a stone. The ureteral device can then be induced to the contracted state to compress the obstruction within the elongate, flexible body and then be removed from the obstructed passage. The ureteral device can be configured to have different numbers of elongate flexible members that define the cages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.