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    • 14. 发明公开
    • IMPLANTABLE SENSOR AND SYSTEM FOR MEASUREMENT AND CONTROL OF BLOOD CONSTITUENT LEVELS
    • IMPLANTIERBARER SENSOR UND ANORDNUNG ZUR MESSUNG ANDD REGELUNG DES GEHALTES VON BLUTBESTANDTEILEN
    • EP0840567A4
    • 1998-09-30
    • EP96923706
    • 1996-07-08
    • UNIV JEFFERSONCROTHALL KATHERINE D
    • JOSEPH JEFFREY ISUN XIAOGUANGCROTHALL KATHERINE D
    • A61B5/145A61B5/00A61B5/029A61B5/1459A61B5/1495A61M5/142A61M5/172
    • A61M5/14276A61B5/0031A61B5/029A61B5/14532A61B5/1459A61B5/412A61B5/6876A61B5/6884A61M5/1723A61M2205/3507
    • An implantable device for sensing in vivo the level of at least one blood constituent in mammalian vascular tissue has at least one source of radiation from infrared through visible light, arranged to direct the radiation at the tissue where it is affected by interaction with the tissue, and a plurality of detectors. Each detector has associated with it a filter transparent to a discrete narrow band of radiation, and each detector provides an output signal representative of detected radiation in that narrow band. The detectors are located with respect to the tissue to receive radiation affected by the tissue. The invention also encompasses a device for measuring and controlling the level of a blood constituent, such as glucose, in a mammal, and includes an implantable infrared source and sensor module for directing infrared radiation through vascular tissue and for sensing the infrared radiation after it has passed through the tissue and generating an output signal representative of the sensed infrared radiation. The device includes a processor module responsive to the output signal from the infrared source and sensor module which performs spectral analysis of the output signal and derives from that analysis a control signal representative of the level of the blood constituent. The device further includes an insulin pump for dispensing doses of insulin in response to the control signal for blood glucose regulation.
    • 本发明是能够测量,控制,监测和报告血液成分水平的可植入传感器和系统。 所述植入式传感器(14)用于体内感测哺乳动物血管组织(20,24)中的至少一种血液成分的水平,所述至少一种血液成分具有至少一个来自红外至可见光的辐射源,被布置成将辐射引导至其处的组织 受到与组织相互作用的影响,以及至少一个检测器。 本发明还包括用于测量和控制诸如葡萄糖或氧气的血液成分的水平的装置,并且包括用于生成表示所感测的红外辐射的输出信号的可植入的红外源和传感器模块。 该系统包括响应输出信号的处理器模块,该输出信号执行输出信号的频谱分析并产生控制信号。 该系统还包括用于响应控制信号分配(16)药物剂量或控制器官功能的其他装置。
    • 18. 发明公开
    • GLUCOSE FREE MEDIA FOR STORING BLOOD PLATELETS.
    • 没有葡萄糖的媒体上存储的血小板。
    • EP0281621A4
    • 1990-01-11
    • EP87906352
    • 1987-09-08
    • UNIV JEFFERSON
    • MURPHY SCOTT
    • A01N1/02A61K35/14
    • A01N1/0226A01N1/02A61K35/19
    • Novel methods and storage media for storing platelets in a viable condition for at least five days are disclosed. The disclosed methods comprise the steps of providing a platelet rich suspension of platelets and blood plasma; extracting supernatant plasma from that suspension to leave between about 1 to 15 mls of plasma per unit of blood platelets with those platelets to produce a concentrated platelet button; adding 40 to 70 ml/unit of a glucose free aqueous solution to said concentrated platelet button; agitating the resultant solution to resuspend the platelets to provide a synthetic suspension of those platelets; and storing that synthetic suspension in an oxygen permeable container at about 22 DEG C., until needed for use. Two preferred glucose free aqueous platelet storage media are disclosed which generally comprise sodium citrate, sodium chloride, potassium chloride, and either sodium phosphate or calcium chloride, but not both. The subject media also optionally comprise magnesium sulfate. Results comparable to storing blood platelets in plasma are disclosed using media which free plasma for other uses and which may reduce the risk of disease transmission from platelet infusion.