| 摘要 |
<p>Apparatus for the investigation of blood, comprising a columnar reservoir formed from a plastic hypodermic syringe (1) for holding the blood, an elongate tube (2) leading from the reservoir to a waste blood holding vessel (5), and a pressurisable vessel (30) for holding a blood immiscible fluid. The pressurisable vessel is connected to the columnar reservoir and pressurised so that the immiscible fluid displaces the blood through the tube (2), while simultaneously stirring the blood in the columnar reservoir (1). The apparatus includes at least two parallel channels, each channel comprising a columnar reservoir, elongate tube, waste blood holding vessel, and means for introducing a displacing fluid. A single parallel sided punching needle (10) is provided, positioned so as to permit the punching of the respective elongate tube of each channel, or two similar parallel sided punching needles (10) are provided, positioned so as to permit the punching by each of the said needles of a respective one of the said two elongate tubes. A collagen body may be positioned within the elongate tube to enable the investigation of thrombus formation. A pressure transducer is so positioned as to measure pressure in the waste blood holding vessel, so that the process of blood clotting can be followed.</p> |
