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    • 2. 发明授权
    • Enhanced intraluminal flow measurement method using reference and combined signals
    • 使用参考和组合信号增强管腔内流量测量方法
    • US08142359B2
    • 2012-03-27
    • US12104966
    • 2008-04-17
    • George W. KeilmanLeigh BartlettTimothy Johnson
    • George W. KeilmanLeigh BartlettTimothy Johnson
    • A61B8/06
    • A61B5/026A61B5/0031A61B5/0265A61B5/6846A61B8/06A61B8/12A61B8/4472
    • An enhanced intraluminal flow measurement system and method is conducive for a low-power ultrasonic system that can use continuous-wave (CW) Doppler sensing and wireless RF telemetry. Applications include measurement of blood flow in situ in living organisms. Implementations include an extraluminal component located outside of a body, such as a human or animal body, containing a lumen. The extraluminal component can be wirelessly coupled via an RF magnetic field or other RF field to an implantable intraluminal component. The intraluminal component (i.e. implant) is implanted inside of the lumen of the body such as a heart or elsewhere in a vasculature (such as in a dialysis shunt). The intraluminal component can telemeter, via RF electromagnetic signals, flow data directly out of the body housing the intraluminal component to be received by the extraluminal component.
    • 增强的管腔内流量测量系统和方法有利于可以使用连续波(CW)多普勒感测和无线RF遥测的低功率超声波系统。 应用包括在生物体内原位测量血流。 实施方案包括位于身体外部的外阴部件,例如包含内腔的人体或动物体。 管腔内部件可以经由RF磁场或其他RF场无线耦合到可植入的管腔内部件。 管腔内成分(即植入物)植入体内的腔内,例如心脏或其它脉管系统(如透析分流)中。 管腔内成分可以通过射频电磁信号将流量数据直接传送出外壳体内的腔内部件,以便由腔内部件接收。
    • 3. 发明申请
    • ENHANCED INTRALUMINAL FLOW MEASUREMENT SYSTEM USING REFERENCE AND COMBINED SIGNALS
    • 使用参考和组合信号的增强的内部流量测量系统
    • US20090264761A1
    • 2009-10-22
    • US12104949
    • 2008-04-17
    • George W. KeilmanLeigh BartlettTimothy Johnson
    • George W. KeilmanLeigh BartlettTimothy Johnson
    • A61B8/00A61B5/00A61N1/00
    • A61B8/12A61B5/0031A61B8/06A61B8/488
    • An enhanced intraluminal flow measurement system and method is conducive for a low-power ultrasonic system that can use continuous-wave (CW) Doppler sensing and wireless RF telemetry. Applications include measurement of blood flow in situ in living organisms. Implementations include an extraluminal component located outside of a body, such as a human or animal body, containing a lumen. The extraluminal component can be wirelessly coupled via an RF magnetic field or other RF field to an implantable intraluminal component. The intraluminal component (i.e. implant) is implanted inside of the lumen of the body such as a heart or elsewhere in a vasculature (such as in a dialysis shunt). The intraluminal component can telemeter, via RF electromagnetic signals, flow data directly out of the body housing the intraluminal component to be received by the extraluminal component.
    • 增强的管腔内流量测量系统和方法有利于可以使用连续波(CW)多普勒感测和无线RF遥测的低功率超声波系统。 应用包括在生物体内原位测量血流。 实施方案包括位于身体外部的外阴部件,例如包含内腔的人体或动物体。 管腔内部件可以经由RF磁场或其他RF场无线耦合到可植入的管腔内部件。 管腔内成分(即植入物)植入体内的腔内,例如心脏或其它脉管系统(如透析分流)中。 管腔内成分可以通过射频电磁信号将流量数据直接传送出外壳体内的腔内部件,以便由腔内部件接收。
    • 6. 发明授权
    • Enhanced diaphragm for pressure sensing system and method
    • 用于压力传感系统和方法的增强隔膜
    • US07568394B1
    • 2009-08-04
    • US12109289
    • 2008-04-24
    • George W. KeilmanTimothy Johnson
    • George W. KeilmanTimothy Johnson
    • G01L7/08
    • A61B5/0215A61B2562/0247A61B2562/028G01L19/0046G01L19/04
    • An enhanced pressure sensing system and method use an external diaphragm to address issues involved with accurate and prolonged measurement of fluid pressure, such as of blood flowing in a vascular structure. Some external diaphragms include a metallized layer or other highly impermeable layer to furnish a high degree of seal at least near to hermetic grade. As temperature of the intermediary fluid changes, the external diaphragm is able to move in a direction that minimizes differential pressure across the external diaphragm over an operational temperature range thereby reducing pressure change of the intermediary fluid due to change in temperature of the intermediary fluid. Relatively smooth hydrodynamic surfaces can be used as well as a bi-layer construction.
    • 增强的压力感测系统和方法使用外部膜片来解决涉及流体压力的精确和长期测量的问题,例如在血管结构中流动的血液。 一些外部隔膜包括金属化层或其它高度不可渗透的层,以至少接近密封级别提供高密度的密封。 当中间流体的温度变化时,外部隔膜能够在使操作温度范围内使外部隔膜两端的差压最小化的方向上移动,从而减少由于中间流体的温度变化引起的中间流体的压力变化。 可以使用相对平滑的流体动力学表面以及双层结构。
    • 8. 发明申请
    • ENHANCED INTRALUMINAL FLOW MEASUREMENT METHOD USING REFERENCE AND SHIFTED SIGNALS
    • 使用参考和移位信号的增强的内部流量测量方法
    • US20090264766A1
    • 2009-10-22
    • US12105068
    • 2008-04-17
    • George W. KeilmanLeigh BartlettTimothy Johnson
    • George W. KeilmanLeigh BartlettTimothy Johnson
    • A61B8/06
    • A61B8/12A61B8/06A61B8/565
    • An enhanced intraluminal flow measurement system and method is conducive for a low-power ultrasonic system that can use continuous-wave (CW) Doppler sensing and wireless RF telemetry. Applications include measurement of blood flow in situ in living organisms. Implementations include an extraluminal component located outside of a body, such as a human or animal body, containing a lumen. The extraluminal component can be wirelessly coupled via an RF magnetic field or other RF field to an implantable intraluminal component. The intraluminal component (i.e. implant) is implanted inside of the lumen of the body such as a heart or elsewhere in a vasculature (such as in a dialysis shunt). The intraluminal component can telemeter, via RF electromagnetic signals, flow data directly out of the body housing the intraluminal component to be received by the extraluminal component.
    • 增强的管腔内流量测量系统和方法有利于可以使用连续波(CW)多普勒感测和无线RF遥测的低功率超声波系统。 应用包括在生物体内原位测量血流。 实施方案包括位于身体外部的外阴部件,例如包含内腔的人体或动物体。 管腔内部件可以经由RF磁场或其他RF场无线耦合到可植入的管腔内部件。 管腔内成分(即植入物)植入体内的腔内,例如心脏或其它脉管系统(如透析分流)中。 管腔内成分可以通过射频电磁信号将流量数据直接传送出外壳体内的腔内部件,以便由腔内部件接收。
    • 10. 发明授权
    • Enhanced intraluminal flow measurement method using pulsed signals
    • 使用脉冲信号增强管腔内流量测量方法
    • US08128566B2
    • 2012-03-06
    • US12105050
    • 2008-04-17
    • George W. KeilmanLeigh BartlettTimothy Johnson
    • George W. KeilmanLeigh BartlettTimothy Johnson
    • A61B8/06
    • A61B5/026A61B5/0031A61B5/0265A61B5/6846A61B8/06A61B8/12
    • An enhanced intraluminal flow measurement system and method is conducive for a low-power ultrasonic system that can use continuous-wave (CW) Doppler sensing and wireless RF telemetry. Applications include measurement of blood flow in situ in living organisms. Implementations include an extraluminal component located outside of a body, such as a human or animal body, containing a lumen. The extraluminal component can be wirelessly coupled via an RF magnetic field or other RF field to an implantable intraluminal component. The intraluminal component (i.e. implant) is implanted inside of the lumen of the body such as a heart or elsewhere in a vasculature (such as in a dialysis shunt). The intraluminal component can telemeter, via RF electromagnetic signals, flow data directly out of the body housing the intraluminal component to be received by the extraluminal component.
    • 增强的管腔内流量测量系统和方法有利于可以使用连续波(CW)多普勒感测和无线RF遥测的低功率超声波系统。 应用包括在生物体内原位测量血流。 实施方案包括位于身体外部的外阴部件,例如包含内腔的人体或动物体。 管腔内部件可以经由RF磁场或其他RF场无线耦合到可植入的管腔内部件。 管腔内成分(即植入物)植入体内的腔内,例如心脏或其它脉管系统(如透析分流)中。 管腔内成分可以通过射频电磁信号将流量数据直接传送出外壳体内的腔内部件,以便由腔内部件接收。