Intubating video endoscope
US4846153A · kind A · utility
Inventor
Key dates
| Filing date | Jun 10, 1988 |
| Grant date | Jul 11, 1989 |
| Priority date | — |
| Expiry date | Jun 10, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B1/127
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An endoscope includes an elongated sheath member, with a selectively controllable bendable section which houses an image forming optical system. A generally rigid section includes a control housing. An image transmitting optical system extends throughout the length of the sheath member and terminates behind and adjacent the image forming system. A light transmitting system also extends throughout the length of the sheath member to the image forming optical system, the rearward end of which is adapted to be operatively connected to a light source. A channel, extending throughout the length of the sheath member, provides a flow of pressurized gas is directed across the image forming optical system to keep the image forming optical system operationally clear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.