Breathing tube for use in ultrasonic flow measurement systems
US10786178B2 · kind B2 · utility
1Cited by
11References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2015 |
| Grant date | Sep 29, 2020 |
| Priority date | — |
| Expiry date | Dec 23, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2503/40
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
This invention relates to a breathing tube for use in ultrasonic flow measurement systems for determining the volume flow and/or the molar mass of the respiration of humans and animals. According to the invention, the breathing tube at least partly has a polygonal cross-section. Furthermore at least one indicator is formed on the breathing tube, which can be read out via an external optical device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.