Multi-lumen hose for respirators
US6571794B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 19, 2000 |
| Grant date | Jun 3, 2003 |
| Priority date | — |
| Expiry date | Jan 13, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3344
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A respirator hose for connection between a ventilator and a breathing appliance during respiratory therapy includes a tubular body defining a first lumen for conveying a breathing gas from the ventilator, and a helical reinforcement member with a hollow core coiled around the tubular body to define a second lumen for conveying a second fluid in support of the respiratory therapy. The helical reinforcement member has a configuration to resist kinking and crushing of the tubular body that would close-off flow of the breathing gas. A fitting at one end of the hose can be keyed to simplify connections between the lumens and fluid communication ports of the ventilator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.