Liquid drain for patient breathing apparatus
US4417574A · kind A · utility
48Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 3, 1982 |
| Grant date | Nov 29, 1983 |
| Priority date | — |
| Expiry date | May 3, 2002 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M16/0833
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A patient breathing apparatus is disclosed which includes a liquid drain connected to receive liquid condensation. The drain includes a barrier which is water permeable and gas impermeable when wet. The barrier may be provided with a water soluble layer that is gas impermeable when dry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.