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1.发明申请公开(公告)号：US20120108981A1
公开(公告)日：2012-05-03
申请号：US13322756
申请日：2010-05-25
IPC分类号： A61B6/00
CPC分类号： A61B5/14557 , A61B5/14535
摘要： An apparatus for measuring the blood parameters in an extracorporeal circuit comprises: a seat (23) suitable for containing a duct (14) for the blood flow of said extracorporeal circuit; emitting means (16) and detecting means (18) of electromagnetic radiation that face the seat (23); a control unit (38) to which said emitting means (16) and detecting means (18) are connected. The apparatus according to the invention is characterised in that the emitting means (16) are suitable for producing electromagnetic radiation at different wavelengths, and the detecting means (18) are suitable for detecting the electromagnetic radiation diffused in the blood at said wavelengths. Moreover, the apparatus is characterised in that the control unit (38) is suitable for calculating values of blood parameters through a correlation between reference values and ratios obtained from values of the light intensity of the radiation detected at at least two different wavelengths.
摘要翻译： 一种用于测量体外回路中的血液参数的装置包括：适于容纳用于所述体外回路的血流的管道（14）的座（23）; 发射装置（16）和面对座椅（23）的电磁辐射的检测装置（18）。 控制单元（38），所述发射装置（16）和检测装置（18）连接到该控制单元。 根据本发明的装置的特征在于，发射装置（16）适于产生不同波长的电磁辐射，并且检测装置（18）适用于检测在所述波长处扩散在血液中的电磁辐射。 此外，该装置的特征在于，控制单元（38）适用于通过从至少两个不同波长处检测的辐射的光强度获得的参考值和比值之间的相关性来计算血液参数的值。
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公开(公告)号：US5762870A
公开(公告)日：1998-06-09
申请号：US831960
申请日：1997-04-02
申请人： Franco Vallana , Stefano Rinaldi , Giampiero Porro , Massimo Fini
发明人： Franco Vallana , Stefano Rinaldi , Giampiero Porro , Massimo Fini
CPC分类号： B01D65/08 , B01D63/027 , B01D63/06 , F28F13/06 , F28F21/062 , A61M1/1698 , B01D2321/2016
摘要： The structure has a core which may be a strand or braid, as well as a sheath surrounding the core and defining the exchange surface. Preferred applications are for biomedical equipment such as blood oxygenators and blood purification equipment.
摘要翻译： 该结构具有可以是线或编织物的芯，以及围绕芯并且限定交换表面的护套。 优选的应用是用于生物医学设备，例如血液氧合器和血液净化设备。
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公开(公告)号：US20120004865A1
公开(公告)日：2012-01-05
申请号：US13256535
申请日：2010-03-15
CPC分类号： A61M1/3663 , G01P5/26 , G01S7/4916 , G01S17/58
摘要： A method for measuring the mean velocity (VH) of an extracorporeal blood fluid or infusion fluid, by means of retroinjection interferometry, comprises the step of emitting a first laser light beam (41), from the laser cavity (40) of a semiconductor laser source (60), reflection of a second laser beam (45) by the fluid (50) and consequent generation of interference with the first laser beam (41) inside the laser cavity (40), detection of the interference signal by a monitoring photodiode (46), and processing, by means of an electronic processing and control circuit (100), of the interference signal detected. The invention also comprises an apparatus (62) for implementing the method described and an extracorporeal circuit (58) comprising said apparatus. The invention also comprises a method for replacing a laser source in said apparatus.
摘要翻译： 通过后投射干涉法测量体外血液或输注液的平均速度（VH）的方法包括从半导体激光器的激光腔（40）发射第一激光束（41）的步骤， 源极（60），由流体（50）反射第二激光束（45）并随之产生与激光腔（40）内的第一激光束（41）的干涉，由监测光电二极管检测干涉信号 （46），并且通过电子处理和控制电路（100）处理检测到的干扰信号。 本发明还包括用于实现所述方法的装置（62）和包括所述装置的体外电路（58）。 本发明还包括一种用于替换所述设备中的激光源的方法。
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公开(公告)号：US5830134A
公开(公告)日：1998-11-03
申请号：US725912
申请日：1996-10-04
CPC分类号： G01N21/27
摘要： Physico-chemical parameters, such as pH, pO.sub.2, pCO.sub.2, % O.sub.2, sat, etc., are determined with the use of a sensitive medium, such as a chromophore, having at least one optical property the profile of the spectrum whereof over a predetermined wavelength spectrum of optical radiation varies as a function of the parameter to be determined. The profile of the spectrum is analysed, for example by means of polychromatic sensor means acting on the medium's spectrum, which is preferably substantially continuous, so as to enable the analysis to be carried out with the aid of a profile-recognition function by typical pattern-recognition operations. The determination is thus rendered largely independent of numerous perturbing factors such as those resulting from the use of partially disposable monitoring units, thus eliminating the need for calibration steps.
摘要翻译： 通过使用具有至少一种光学性质的敏感介质如发色团来确定物理化学参数，例如pH，pO2，pCO2，％O2，sat等物理化学参数， 光辐射的预定波长谱根据要确定的参数的函数而变化。 分析光谱的分布，例如通过作用在介质光谱上的多色传感器装置，其优选地基本上是连续的，以便能够借助于通过典型图案的轮廓识别功能进行分析 - 识别操作。 因此，该确定在很大程度上独立于许多扰动因素，例如由于使用部分一次性监视单元而导致的扰动因素，从而消除了对校准步骤的需要。
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