Method and apparatus for testing vital capacity
US10568543B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 29, 2015 |
| Grant date | Feb 25, 2020 |
| Priority date | — |
| Expiry date | Aug 10, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/6898
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present application discloses a method and apparatus for testing vital capacity. The method comprises: measuring a static pressure P0 of a pressure hole inner cavity of a mobile device; wherein the pressure hole is communication with the exterior and is purposely disposed on the mobile device or is an already-designed opening; obtaining an air pressure P(t) at each moment by blowing air towards the pressure hole; obtaining an air flow speed v(t) corresponding to each moment according to a correspondence relation formula between the air flow speed v(t) and a pressure differential P(t)−P0; and obtaining vital capacity Vc of the subject according to a correspondence relationship between a measurement time t and the air flow speed v(t).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.