Spirometer, mouthpiece tube and inspection method thereof
US10863923B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2017 |
| Grant date | Dec 15, 2020 |
| Priority date | — |
| Expiry date | Feb 11, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0871
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Spirometer, mouthpiece tube and inspection method thereof. The spirometer includes at least the mouthpiece tube and an ultrasound detector configured to detect the ultrasound generated by the gas flowing through the mouthpiece tube, wherein the mouthpiece tube has a shell having an opened end, a closed or opened end, and an ultrasonic generator configured to be inserted into different portions of the shell in different situations. Therefore, by inserting the ultrasonic generator into different portions of the shell during expiration and inspiration, the gas flow during expiration and inspiration may be converted into the ultrasonic signal and then maybe detected and analyzed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.