Side-looking type electronic endoscope which allows manipulating tool to be inserted thereinto
US5343853A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 25, 1992 |
| Grant date | Sep 6, 1994 |
| Priority date | — |
| Expiry date | Aug 25, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B1/015
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A side-looking type endoscope which leads out a manipulating tool from the side surface of the end portion thereof. A raising table for raising a manipulating tool is provided at the end portion. An arcuate groove is formed in the raising table in such a manner that the arcuate groove has a linear bottom line and the inclination of the linear bottom line when the raising table is erect is different from the inclination of the wall of the exit passage of the manipulation tool insertion channel. An arcuate groove having a curvature radius suitable for guiding the manipulating tool which is bent when the raising table is erect is formed at a part of the arcuate groove having a linear bottom line, thereby enabling a smooth movement of the manipulating tool. If the exit passage of the manipulating tool insertion channel has an oval section having the major axis in the vertical direction, or the solid-state image sensor is disposed such that the surface of the device is perpendicular to the exit end surface of the endoscope, and the exit passage of the manipulating tool insertion channel is curved in a plane approximately parallel to the surface of device of the solid-state image sensor,…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.