Measuring pressure
US8494349B2 · kind B2 · utility
118Cited by
10References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 20, 2008 |
| Grant date | Jul 23, 2013 |
| Priority date | — |
| Expiry date | Apr 7, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3382
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus are disclosed for determining a negative pressure generated by a suction pump of a topical negative pressure (TNP) system. The method includes the steps of disconnecting a drive voltage from a pump of the TNP system, determining an EMF generated by a free-wheeling element of the pump, selecting a new drive voltage for the pump and reconnecting the new drive voltage to the pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.