Single axis three way selector valve for endoscopes
US5347992A · kind A · utility
124Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 1993 |
| Grant date | Sep 20, 1994 |
| Priority date | — |
| Expiry date | Jan 22, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86992
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A single axis three way valve for endoscopes. The valve has a repose, closed setting and two active settings. In one active setting, a common port to the endoscope is connected to suction, and in the other active setting it is connected to a source of irrigation liquids. The valve has two spools, one of which is connected to a finger pad for actuation, and which is spring-loaded to a closed position. The other spool is spaced from the first, and also is spring-loaded closed . The first valve is opened by initial movement. Further movement closes its port and abuts the other spool to open its respective port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.