Pneumatic pressure output control by drive valve duty cycle calibration
US8818564B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2010 |
| Grant date | Aug 26, 2014 |
| Priority date | — |
| Expiry date | Aug 3, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/8858
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In various embodiments, a surgical console may include a pneumatic valve to drive a pneumatic tool coupled to the surgical console. The console may further include a controller operable to control and adjust the valve open/close cycle times according to a valve duty cycle. The valve may switch between ports (valve open time for a first port and valve close time for a second port) such that a total valve time may approximately equal the valve open time plus the valve close time. The valve duty cycle may indicate a percentage of the total valve time for the controller to signal the valve to open and may include an adjustment that corresponds to a signal timing of the open and/or closed valve positions that will result in open and closed operating pressures above a predetermined threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.