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    • 59. 发明授权
    • Diagnostic device for measuring information on blood in a living object
    • 用于测量活体血液信息的诊断装置
    • US5564418A
    • 1996-10-15
    • US219294
    • 1994-03-28
    • Takeo OzakiSusumu Suzuki
    • Takeo OzakiSusumu Suzuki
    • A61B5/026A61B5/00A61B5/145A61B5/1455
    • A61B5/14553
    • Perform measurement of blood flow using physiological salt solution, which is harmless to living objects, as a tracer. The head portion (4) of a subject is alternately irradiated with laser light 1, and laser light 2. The light exiting from the head portion (4) is detected and converted to an electric signal. By performing a first calculation on this electric signal, a CPU (1) outputs a signal representing the change in concentration of hemoglobin in the head (4). Further, a second calculation process is performed on the electric signal which represents changes in concentration of hemoglobin generated by injection of the physiological salt solution. At least one of the blood flow or the absolute concentration of oxyhemoglobin and deoxyhemoglobin is displayed. Because a material safe to living objects is used as the tracer, measurement of the blood flow can be safely and repeatedly performed.
    • 作为示踪剂,使用对生物体无害的生理盐溶液进行血流量测。 被摄体的头部(4)交替地照射激光1和激光2.从头部(4)出射的光被检测并转换为电信号。 通过对该电信号进行第一计算,CPU(1)输出表示头部(4)中血红蛋白浓度变化的信号。 此外,对表示通过注射生理盐溶液产生的血红蛋白浓度的变化的电信号进行第二计算处理。 至少显示血液流量或氧合血红蛋白和脱氧血红蛋白的绝对浓度。 因为使用对物体安全的物质作为示踪剂,所以能够安全地反复进行血液流量的测定。