Endoscope
US8123680B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2010 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Sep 24, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B1/07
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An endoscope includes an image acquisition device, an objective optical system having a predetermined optical axis, first and second light guiding members that emit first and second illumination light, first and second optical systems that refract the first and second illumination light to intersect with the optical axis of the objective optical system, and a tube-like inserted portion having a distal end. The first and second optical systems are disposed at substantially mirror symmetrical positions at the distal end having a shoulder portion that becomes narrower toward the tip. When viewed from the optical axis direction of the objective optical system, the inclination directions at substantially the center of the outer surfaces of the first and second optical systems and straight lines that pass through the center of the objective optical system and the centers of the first and second optical systems form angles of 30° or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.