OPHTHALMIC SURGICAL DEVICE

An ophthalmic surgical device includes an irrigation line for irrigation fluid flowing from an irrigation container to a handpiece and an aspiration line for aspiration fluid flowing from the handpiece to a collecting container. A first volumetric flow rate determination apparatus is arranged upstre...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Madlinger, Philipp, Kohlhammer, Susanne, Kuebler, Christoph
Format:	Patent
Sprache:	eng
Schlagworte:	BANDAGES, DRESSINGS OR ABSORBENT PADS DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PROSTHESES TREATMENT OR PROTECTION OF EYES OR EARS
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Beschreibung
Zusammenfassung:	An ophthalmic surgical device includes an irrigation line for irrigation fluid flowing from an irrigation container to a handpiece and an aspiration line for aspiration fluid flowing from the handpiece to a collecting container. A first volumetric flow rate determination apparatus is arranged upstream of the handpiece and determines a first volumetric flow rate in the irrigation line. A second volumetric flow rate determination apparatus is arranged downstream of the handpiece and determines a second volumetric flow rate in the aspiration line. An occlusion determination apparatus acquires a time curve of the first volumetric flow rate and a time curve of the second volumetric flow rate, to compare with stored time curves of the first volumetric flow rate for different occlusion states and stored time curves of the second volumetric flow rate for different occlusion states, and to determine a current occlusion state in the aspiration line therefrom.