Respiratory flow sensor
US10905357B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2016 |
| Grant date | Feb 2, 2021 |
| Priority date | — |
| Expiry date | Feb 20, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2016/0036
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to a respiratory flow sensor (11) comprising a flow tube (12) which has a flow channel (13) and tube connections for tubes at the free ends (15, 17) of the flow tube, a cover flap (32) which is arranged in the flow channel (13) and divides the flow channel (13) into a first flow channel section (18) and a second flow channel section (19), and comprising connections (22, 23) which open into the flow channel (13) on both sides of the cover flap (32) and which are used to decrease the pressure difference generated by the cover flap (32). A drainage device (41) which comprises drain grooves (42, 43) is provided in the flow channel (13), and the cover flap (32) has a hinge region which is formed by a first slot and a second H-shaped slot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.