Flow volume measuring device, flow volume measuring method, pressure measuring device, and pressure measuring method
US11419512B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2017 |
| Grant date | Aug 23, 2022 |
| Priority date | — |
| Expiry date | Oct 7, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/0261
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
It is possible to improve a measurement accuracy of a liquid flow volume, thereby improving reproducibility of a measured value. Provided is a flow volume measuring device including a light source which emits light to a measuring-target region; a light receiving element which receives light scattered at the measuring-target region from the light emitted from the light source; a contact member having translucency with respect to a wavelength of the emitted light and a wavelength of the scattered light, the contact member including a surface which faces the measuring-target region and with which the measuring-target region is contactable over the entire surface; and a flow volume measuring unit which measures a flow volume of liquid flowing through the measuring-target region based upon the scattered light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.