Endoscope
US4860731A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 11, 1988 |
| Grant date | Aug 29, 1989 |
| Priority date | — |
| Expiry date | Oct 11, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B1/12
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An endoscope having sucking tube lines large in the sucking capacity of the present invention has an insertable part to be inserted into a body cavity and is provided in the front end part of the insertable part with an illuminating window illuminating an observed part, an observing window for observing the illuminated object and a sucking part. A first sucking tube line inserted through the insertable part and leading to the operating part is connected at one end to the sucking part and at the other end to a suction switching part operating the suction from the sucking part. A second sucking tube line of an inside diameter larger than of the first sucking tube line is connected to the suction switching part so as to make the suction from the sucking part through the suction switching part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.