Structure of the distal end portion of an endoscope
US5411020A · kind A · utility
74Cited by
3References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 30, 1993 |
| Grant date | May 2, 1995 |
| Priority date | — |
| Expiry date | Aug 30, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B1/05
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The distal end body of an endoscope containing an objective optical system or other components is coupled with the distal end of a bendable portion by a coupling tube. The rear end of the coupling tube is fitted on the inside of the foremost end part of the bendable portion and is fixed to the foremost end part of the bendable portion at fixing locations. Portions of the coupling tube proximate the fixing locations have a greater thickness while remaining locations have a lesser thickness, so as to provide adequate mechanical strength while maximizing the interior cross sectional area of the coupling tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.