Respiration humidifier
US6367472B1 · kind B1 · utility
119Cited by
21References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 6, 1997 |
| Grant date | Apr 9, 2002 |
| Priority date | — |
| Expiry date | May 4, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/581
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved, compact and low-maintenance respiration humidifier of a simple design is proposed, which has an outer jacket with a water feed as well as a breathing gas feed line and breathing gas drain line and contains a bundle of hydrophobic hollow fibers. The breathing gas feed line and the breathing gas drain line are in a gas flow connection with the interior of the hollow fibers. The hollow fibers preferably include polytetrafluoroethylene (PTFE) and have structure for electrical heating on their outer, water-side circumferential surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.