Solenoid pinch valve apparatus and method for medical fluid applications having reduced noise production
US9435459B2 · kind B2 · utility
8Cited by
54References
30Claims
0Family size
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Key dates
| Filing date | Jun 5, 2009 |
| Grant date | Sep 6, 2016 |
| Priority date | — |
| Expiry date | Oct 30, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/43
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A low noise solenoid valve system includes a solenoid valve; and a controller configured to perform a power actuation sequence in which power to the solenoid valve undergoes a plurality of cycles that switch from an actuation level power to a hold level power, wherein the actuation level power is increased at each subsequent cycle, and wherein the actuation power level of one of the plurality of cycles is sufficient to fully actuate the solenoid valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.