Electronic sphygmomanometer
US9572500B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2012 |
| Grant date | Feb 21, 2017 |
| Priority date | — |
| Expiry date | May 26, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/02225
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A first oscillation circuit and a second oscillation circuit are connected to a first pressure sensor and a second pressure sensor, respectively, and oscillate based on the capacity values of the corresponding pressure sensors. The first oscillation circuit and the second oscillation circuit operate in response to instruction from a CPU. The one of the first oscillation circuit and the second oscillation circuit that has received an activation signal from the CPU outputs a signal having a frequency that corresponds to the capacity value of the corresponding pressure sensor. An adjustment circuit is connected to the first oscillation circuit and the second oscillation circuit, and allows one of the frequency signals to pass therethrough, outputting the signal to the CPU.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.