Anaesthetic mask
US4770169A · kind A · utility
282Cited by
12References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 13, 1987 |
| Grant date | Sep 13, 1988 |
| Priority date | — |
| Expiry date | Feb 13, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/91
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention provides an improved anaesthetic scavenging face mask having a scavenging channel running along the perimeter of the mask. The mask is provided with an anaesthetic gas inlet and a vacuum outlet. The scavenging channel is connected to the vacuum outlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.