Medical apparatus, treatment instrument for endoscope and endoscope apparatus
US7918785B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2007 |
| Grant date | Apr 5, 2011 |
| Priority date | — |
| Expiry date | Dec 5, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/2929
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A biopsy forceps as one of treatment instruments for endoscope includes: a tubular coil sheath introduced into a body cavity through a treatment instrument channel included in an endoscope insertion portion; a treatment portion disposed closer to a distal end side than a distal end surface of the coil sheath; an operation wire for transmitting a turning force to turn the treatment portion in a circumferential direction, the operation wire being inserted in the coil sheath in a forwardly/backwardly movable manner and turned in the circumferential direction; and a turn restricting mechanism portion for restricting a turn position of the treatment portion turned by the turning force transmitted by the operation wire with respect to the coil sheath at a first turn-restricting position or at a second turn-restricting position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.