Pressure monitor for pneumatic vitrectomy machine

A - Human Necessities – 61 – F

Patent

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Details

A61F 9/007 (2006.01)

Patent

CA 2671853

A system for a pneumatically-powered vitrectomy machine includes an output port, a venting valve, a venting manifold, a pressure transducer, and a controller. The output port provides pressurized gas to a vitrectomy probe. The venting valve is located close to the output port. The venting manifold fluidly connects the venting valve to a venting port. The venting port vents pressurized gas from the venting manifold. The pressure transducer is located near the output port. The pressure transducer is configured to read a pressure of a gas near the output port. The controller is adapted to receive information about the pressure and activate the venting valve. When the information received from the pressure transducer indicates a fault condition, the controller directs the venting valve to open.

L'invention concerne un système pour une machine de vitrectomie entraînée pneumatiquement, comprenant un orifice de sortie, une soupape de ventilation, un collecteur de ventilation, un capteur de pression, et un contrôleur. L'orifice de sortie fournit un gaz sous pression à une sonde de vitrectomie. La soupape de ventilation est située à proximité de l'orifice de sortie. Le collecteur de ventilation met en communication fluidique la soupape de ventilation et un orifice de ventilation. L'orifice de ventilation évacue le gaz sous pression du collecteur de ventilation. Le capteur de pression est situé à proximité de l'orifice de sortie. Le capteur de pression est configuré de manière à détecter une pression d'un gaz à proximité de l'orifice de sortie. Le contrôleur est adapté pour recevoir des informations concernant la pression et activer la soupape de ventilation. Lorsque les informations reçues du capteur de pression indiquent un état de défaillance, le contrôleur commande l'ouverture de la soupape de ventilation.

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