Endoscope with a detachable observation unit at its distal end
US4895138A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 24, 1985 |
| Grant date | Jan 23, 1990 |
| Priority date | — |
| Expiry date | Dec 24, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/555
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An endoscope includes an insertion section inserted into the patient's body. A distal end member is provided at the distal end of the insertion section. An illuminating system for illuminating a desired portion is attached to the end member. An observation unit is detachably attached to the distal end member. This unit includes a cylindrical support detachably fitted to the end member. In the support are disposed an objective lens system for imaging an optical image of the portion illuminated by the illuminating system, a solid-state image sensor for converting the image to an electric signal, and electronic components connected to the sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.