Angle portion of an endoscope
US6454703B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 29, 2000 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | Nov 16, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B1/0057
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Within a flexible angling joint tube which is connected to a rigid tip end section of an endoscopic insertion instrument and which is formed by connecting a predetermined number of angle rings successively and pivotally by the use of pivoting pins, a plural number of operating wires are passed in an axial direction via the respective pivoting pins. Fore ends of the operating wires are fixedly anchored at fixation points in boundary portions of the rigid tip end section and the flexible angling joint tube. An operating wire fixation point for at least one operating wire is shifted to an angular position in the circumferential direction from a normal position on an axial extension line from a row of pivoting pins. A wire guide pin is fixedly provided at least one of angle rings which are connected by the foremost pivoting pins to guide the one operating wire in such a way as to evade at least a top portion of the foremost pivoting pin as the one operating wire is pulled or pushed in the axial direction to bend the angling joint tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.