Apparatus for entrapping and extracting objects from body cavities
US8469970B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2011 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Oct 13, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/2215
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A retrieval apparatus for entrapping and retaining an object located in a body for its extraction therefrom is described. The retrieval apparatus includes a snare and a snare control assembly. The snare has a proximal section and a distal section, and comprises a plurality of filaments extending from a proximal end of the proximal section towards the distal section, and then returning to the proximal end to form a plurality of loops. In the deployed state, the loops are interlaced to each other within the proximal section and are free and not interleaved within the distal section. Segments of the filaments of the distal section are bent with respect to segments of the filaments of the proximal section such that the retrieval snare in the contracted state forms a hollow cavity extending from the distal section towards the proximal section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.