Liquid flow meter, for use e.g. in vitrectomy operation

摘要

The flow meter has two pressure sensors (12, 14) with cylindrical bodies, each connected at one end to a section (22, 26) of a tubular cannula and at the other to an intermediate tube (16) having a wall thickness of at least 0.8 mm. The pressure sensors are connected to a processing unit which calculates the flow rate through the cannula