A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
A61F 9/007 (2006.01) B01D 35/143 (2006.01)
Patent
CA 2667375
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.
La présente invention concerne un système de mesure de la pression d'un gaz, destiné à un dispositif chirurgical pneumatique, qui comprend un premier et un second capteur de pression et un dispositif de contrôle. Le premier capteur de pression se trouve en amont d'un filtre et est conçu pour lire une première pression d'un gaz avant que celui-ci n'entre dans le filtre. Le second capteur de pression se trouve en aval du filtre et est conçu pour lire une seconde pression d'un gaz lorsque celui-ci sort du filtre. Le dispositif de contrôle est conçu pour calculer l'écart entre la première et la seconde pression. L'état du filtre est déterminé à partir de l'écart entre la première et la seconde pression.
Palino Robert
Turner Denis P.
Alcon Inc.
Kirby Eades Gale Baker
LandOfFree
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