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    • 4. 发明申请
    • ACCESS DISCONNECT DETECTION
    • 访问断开检测
    • WO2009042263A1
    • 2009-04-02
    • PCT/US2008/066114
    • 2008-06-06
    • BAXTER INTERNATIONAL INC.BAXTER HEALTHCARE S.A.BOUTON, Chad E.
    • BOUTON, Chad E.
    • A61M1/36
    • A61M1/3653A61B5/02042A61M1/3656
    • Techniques are disclosed for monitoring the flow of blood returning to a patient from an extracorporeal therapy machine, such as a hemodialysis machine or an apheresis machine. Blood returning from such a machine is pumped, typically by a peristaltic- pump, which returns the blood in pulsed flow or pulses. This flow can be sensed by Doppler flow sensors or accelerometers (41) as it returns to the patient. If the flow is interrupted by dislodgement of. the venous access needle, or by leaking of blood from the needle, these sensors will detect significantly different flow or vibrations. A controller can then cease therapy, alert a caregiver, or sound an alarm.
    • 公开了用于监测从诸如血液透析机或单采血浆机的体外治疗机返回患者的血液流动的技术。 从这种机器返回的血液通常通过蠕动泵泵送,脉冲泵以脉冲流或脉冲返回血液。 多普勒流量传感器或加速度计(41)可以在患者返回时检测该流量。 如果流动被中断。 静脉入口针或通过从针中泄漏血液,这些传感器将检测出显着不同的流动或振动。 然后,控制员可以停止治疗,警惕看护者或发出警报。