Bending control apparatus for endoscope
US4942866A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 17, 1989 |
| Grant date | Jul 24, 1990 |
| Priority date | — |
| Expiry date | Feb 17, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B1/0057
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A control wire which is secured at one end thereof to a bendable portion of the insert part of an endoscope is wound on a pulley which is rotatably provided in a control part, and a manual control device is provided outside the control part so as to be rotatable about a position which is offset from the axis of rotation of the pulley by a distance a. The rotational motion of the manual control device is transmitted to the pulley by a rotational motion transmitting device at a position which satisfies the conditions of c>a and c>b, wherein b is the distance from the transmitting device to the axis of rotation of the pulley and c is the distance from the transmitting device to the axis of rotation of the manual control device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.