Endoscope
US4681093A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 1983 |
| Grant date | Jul 21, 1987 |
| Priority date | — |
| Expiry date | Dec 12, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B1/00177
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An endoscope for image-observing or measuring an area filled with an opaque liquid is disclosed. The endoscope comprises an image fiber, a lens positioned at the leading end of the image fiber, a light guide arranged in parallel to the image fiber, a transparent fluid transport passage arranged in parallel to the image fiber and the light guide and having an outlet at the leading end thereof, a sheath enclosing the image fiber, lens, light guide and transparent fluid transport passage and a means for providing a field of vision at the leading end of the endoscope by a transparent fluid from the outlet of the transparent fluid transport passage. A means for stabilizing the field of vision formed by the field of vision providing means is provided on the leading end portion of the sheath.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.