全自动血沉分析仪工作原理及参数简介

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                    <section><section powered-by="gulangu"><section><section><p><img src="image/20201019/ce07f54105753da3898fe599c12d73f8_1.gif" /></p></section></section></section><section powered-by="gulangu"><section><section><p><br  /></p></section></section></section><section powered-by="gulangu"><section><section> <section> <section powered-by="gulangu"><section><section><p>物理原理</p></section></section></section> </section> </section></section></section><section powered-by="gulangu"><section><section><p>&nbsp; &nbsp; &nbsp; &nbsp;红细胞沉降率（erythrocyte sedimentation yate,ESR）是指红细胞在一定条件下沉降的速度，简称血沉。</p><p>&nbsp; &nbsp; &nbsp; &nbsp;红细胞沉降率的传统测定方法是称之为标准的（Westergren）魏氏法。</p><p>&nbsp; &nbsp; &nbsp; &nbsp;红细胞的沉降过程是一个包含力学、流变学及细胞间相互作用的复杂过程。影响红细胞沉降的因素很多，主要包含红细胞的形态和大小、红细胞的变形性、红细胞的聚焦性、红细胞间的相互作用，红细胞压积，血浆介质和上升流动，沉降管的倾斜度等。</p></section></section></section><section powered-by="gulangu"><section><section><p><img src="image/20201019/c81d7e46595ee231bcd5405b179b68f5_2.jpg" /></p></section></section></section><section powered-by="gulangu"><section><section><p>&nbsp; &nbsp; &nbsp; &nbsp;通过对红细胞沉降实践过程的记录，以及采用非线性最小二乘拟合方法，可得红细胞沉降曲线（H-T曲线）。</p><p><br  /></p></section></section></section><section powered-by="gulangu"><section><section> <section> <section powered-by="gulangu"><section><section><p>设备原理</p></section></section></section> </section> </section></section></section><section powered-by="gulangu"><section><section><p>&nbsp; &nbsp; &nbsp; &nbsp;仪器设备的原理一类是血沉管垂直固定在自动血沉仪的孔板上，光电二极管沿机械导轨滑动，对血沉管进行扫描。如果红外线不能达到接收器，说明红外线被高密度的红细胞阻挡，一旦红外线能穿过血沉管到达接收器，接收器的信号就引导计算机开始计算到移动终端所需的距离。记录血沉管中的血液在时间零计时的高度，此后每隔一定时间扫描一次，记录每次扫描时红细胞和血浆接触的位置，并以计算机自动计算转换成魏氏法测定值报告结果。</p><p>&nbsp; &nbsp; &nbsp; &nbsp;另一类是固定光电二极管，血沉管随转盘转动。垂直置管式与魏氏法相同。18°倾斜置管方式是将血沉管中的血样被仪器充分混匀后，试管相对于Y轴倾斜18°，促使红细胞沉降加速，静置一段时间，光电传感器自动读出红细胞沉降值，先记录结果后转换成魏氏法测定值。</p><p><br  /></p></section></section></section><section powered-by="gulangu"><section><section> <section> <section powered-by="gulangu"><section><section><p>主要参数（仅供参考）</p></section></section></section> </section> </section></section></section><section powered-by="gulangu"><section><section><p>1、样品测试位</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;≥20孔</p><p>2、测量时间</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;30分钟~60分钟连续可调</p><p>3、测量误差</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;≤±0.5mm/h</p><p>4、采血量</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;≤1.28ml</p><p>5、测量项目</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;血沉值、压积值、方程K值、动态沉降曲线</p><p>6、操作方法</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;采集新鲜抗凝血标本，直接插入血沉仪即可，无需重新吸取标本。</p><p>7、孔位完全独立</p><p>8、内置打印机</p></section></section></section><section powered-by="gulangu"><section><section><p><br  /></p></section></section></section><section powered-by="gulangu"><section><section> <section powered-by="gulangu"><section><section><p>欢</p></section></section></section> </section><section> <section powered-by="gulangu"><section><section><p>迎</p></section></section></section> </section><section> <section powered-by="gulangu"><section><section><p>关</p></section></section></section> </section><section> <section powered-by="gulangu"><section><section><p>注</p></section></section></section> </section></section></section><section powered-by="gulangu"><section><section><p><br  /></p></section></section></section><section powered-by="gulangu"><section><section> <section powered-by="gulangu"><section><section><p><img src="image/20201019/7e543c3ea063bbf298f995daa775c0af_3.jpg" /></p></section></section></section> </section><section> <section powered-by="gulangu"><section><section> </section></section></section> </section><section> <section powered-by="gulangu"><section><section><p>关注我们</p><p>一起涨姿势！</p></section></section></section> </section></section></section></section>