Endoscope
US5257618A · kind A · utility
67Cited by
5References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 6, 1991 |
| Grant date | Nov 2, 1993 |
| Priority date | — |
| Expiry date | Nov 6, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B23/26
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An endoscope has a flexible insert portion that is inserted into an object to be inspected. A light guide, an image guide or signal cable, an instrument channel and other lengthwise members are provided therein. At least one elastic restoring body is provided in the insert portion in order to restore the lengthwise members to their original positions when straightened back after bending or curving of the insert portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.