Ventilation system and/or breathing tube
US6536428B1 · kind B1 · utility
88Cited by
21References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2000 |
| Grant date | Mar 25, 2003 |
| Priority date | — |
| Expiry date | Aug 9, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3653
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A breathing tube for humidified gases ventilation system has an internal conduit and a surrounding conduit within which the internal conduit is disposed. A connector at one end of the internal conduit and the surrounding conduit has an inhalation gases port for connection to an inhalation gases supply port of a ventilator. A gases flow path leads from the inhalation gases port to the space between the internal conduit and the surrounding conduit. A spirally wound heater wire may be disposed between the internal conduit and the surrounding conduit with turns of the spirally wound wire passing around the internal conduit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.