Gas pressure monitor for pneumatic surgical machine
US9326826B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2014 |
| Grant date | May 3, 2016 |
| Priority date | — |
| Expiry date | Feb 20, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/00544
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A gas pressure monitor system for a pneumatically-powered surgical machine includes a first transducer, a second transducer, and a controller. The first transducer is located upstream from a filter and is configured to read a first pressure of a gas before the gas enters the filter. The second transducer is located downstream from the Filter and is configured to read a second pressure of a gas after the gas exits the filter. The controller is configured to compute a difference between the first pressure and the second pressure. A state of the filter is determined from the difference between the first pressure and the second pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.