Medical retrieval device
US7824416B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2004 |
| Grant date | Nov 2, 2010 |
| Priority date | — |
| Expiry date | Oct 16, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/221
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medical retrieval device, and related method, for removing material, such as calculi, from a patient's body. In one embodiment, the device includes a handle, a sheath, and a retrieval assembly located at the distal end of the retrieval device. The retrieval assembly includes a plurality of legs, each of which includes a lumen for receiving fluid. The legs are made of an expandable material that will allow the legs to inflate when the lumen receives a fluid. In another embodiment, the device includes a core element wound to form a helical coil. The helical coil has a lumen for receiving a fluid. The core element is made of an expandable material that allows it to inflate when the lumen within the helical coil receives a fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.