| abstract |
An automated blood draw system operates in conjunction with an arterial or venous line. The aspiration mechanism allows the rate of aspiration, volume of aspirate, and the time interval of aspiration to be predetermined. Blood can be collected in sequential collection vials for subsequent analysis of a given laboratory parameter, or delivered directly to integrated analysis devices. While a predetermined volume of aspirate can be wasted, excessive aspiration is prevented by monitoring waste obtained in a collection receptacle. A flush system maintains the patency of the line without contamination of the specimen. |