Endoscope system
US4402310A · kind A · utility
101Cited by
10References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 13, 1980 |
| Grant date | Sep 6, 1983 |
| Priority date | — |
| Expiry date | Nov 13, 2000 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B1/12
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An endoscope system comprises an endoscope provided with passages through which air and water are supplied and sucked and pumps for conducting air and water through the corresponding passages. The control section of the endoscope is provided with switches for generating electrical signals to freely preset the flow rates of air and water. Tubes for connecting pumps to the air passages are provided with valves for controlling the flow rates of air and water. The valves are opened by a servo motor driven by a servo motor drive circuit in accordance with the signal levers of the electrical signals issued from the switches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.