Endoscope
US4979497A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1990 |
| Grant date | Dec 25, 1990 |
| Priority date | — |
| Expiry date | Mar 23, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S600/921
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The endoscope comprises an elongate insertable part including an observing window in the tip part and a sucking tube path in the interior, an image forming optical system receiving a light from an object coming in from the observing window and forming an endoscope image, an imaging apparatus for imaging the endoscope image formed by the image forming optical system and an operating part connected to the insertable part at the base on the side opposite the tip part. The operating part includes a holding part arranged on the side near to the insertable part and a switching part arranged on the side far from the insertable part. The switching part includes a plurality of switching devices. The switching device arranged in the position nearest to the holding part among the plurality of switching devices includes a function of controlling sucking using the sucking tube path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.