Device for removing solid objects from body canals, cavities and organs
US5779716A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 1995 |
| Grant date | Jul 14, 1998 |
| Priority date | — |
| Expiry date | Oct 6, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2/013
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention is directed to a surgical instrument used in minimally invasive procedures performed under either direct, endoscopic, fluoroscopic, or other visualization. The present invention is also directed to a method of removing foreign objects from the body with the instrument. The surgical instrument includes a wire linkage and wire frame which can be retracted and extended to form a loop. A mouth of a sack is attached to the loop, said sack being used to encircle and capture foreign objects in body canals, cavities and organs. The wire frame is formed of a shape-memory-effect alloy wire, the alloy in a super elastic state and previously trained to form the loop, the loop forming when the said wire frame is extended beyond the sheath.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.