Medical suction device with air vent and fixed restrictor
US4813926A · kind A · utility
27Cited by
25References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 2, 1988 |
| Grant date | Mar 21, 1989 |
| Priority date | — |
| Expiry date | May 2, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S604/902
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A fine tip hand-held medical suction device is provided having a vent orifice in the sidewall of the tip remote from the suction orifice of the tip and the hand holding portion of the device to regulate the negative pressure at the suction orifice. A fluid flow restriction orifice in the flow passage is disposed close to the vent orifice.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.