Device and method for fragmenting and removing concretions from body ducts and cavities
US8328820B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 2010 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Oct 14, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/922
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medical device and method for breaking a concretion in a body into smaller pieces and removing the pieces from the body are described. The device has a dilator sheath, a lithotripsy probe, a tubular member, and a retrieval basket. The dilator sheath adapted to penetrate into a passage of the body to reach the location where the concretion is located. The lithotripsy probe is configured for shattering the concretion into smaller pieces. The tubular member is mounted within the dilator sheath adapted to permit the lithotripsy probe to be inserted into the tubular member. The retrieval basket is coupled to the tubular member, and configured for entrapping the concretion and the smaller pieces for their extraction from the body. The retrieval basket has a structure constituted by a plurality of filaments extending from a basket proximal end towards a basket distal end, and then returning to the proximal end after forming a plurality of filament loops in the basket distal portion, and a plurality of filament strands at the basket proximal portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.