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    • 1. 发明申请
    • SELECTIVELY ACTUATING WIRELESS, PASSIVE IMPLANTABLE SENSOR
    • 选择性地启动无线,被动植入式传感器
    • WO2011060359A3
    • 2011-05-19
    • PCT/US2010/056709
    • 2010-11-15
    • CARDIOMEMS, INC.CROS, Florent
    • CROS, Florent
    • A61B5/053A61B5/04
    • A wireless sensor having a primary passive electrical resonant circuit that has an intrinsic electrical property that is variable in response to a characteristic of a patient and a secondary passive electrical resonant circuit. In one aspect, the primary passive resonant circuit can be positioned into a tuned position in response to the actuation of the secondary passive electrical resonant circuit. In a further aspect, in the tuned position, the primary passive electrical resonant circuit, in response to an energizing signal produced by an ex- vivo source of RF energy, is configured to generate a sensor signal characterized by a resonant frequency that is indicative of the characteristic.
    • 具有主无源电谐振电路的无线传感器具有响应于患者和次级无源电谐振电路的特性而可变的固有电特性。 在一个方面中,响应于次级无源电谐振电路的致动,初级无源谐振电路可以被定位在调谐位置中。 在另一方面,在调谐位置,主无源电谐振电路响应于由射频能量的离体源产生的激励信号而被配置为产生传感器信号,该传感器信号的特征在于表示谐振频率 特点。
    • 2. 发明申请
    • METHOD AND APPARATUS FOR MEASURING PRESSURE INSIDE A FLUID SYSTEM
    • 用于测量流体内部压力的方法和装置
    • WO2008051907A1
    • 2008-05-02
    • PCT/US2007/082092
    • 2007-10-22
    • CardioMEMS, Inc.CROS, FlorentCORCORAN, KevinBERR, Miguel Luis
    • CROS, FlorentCORCORAN, KevinBERR, Miguel Luis
    • A61B5/00A61B5/0215A61B5/07
    • A61B5/076A61B5/0031A61B5/0215
    • A disclosed method determines fluid pressure inside a vessel without compromising the integrity of the vessel. A sensor is positioned in operative communication with the external wall of the vessel such that expansion of the external wall of the vessel exerts a force against the sensor that is directed substantially radially outward with respect to the vessel. A substantially radially inward force is caused to be directed against the sensor in response to the substantially radially outward force exerted by the external vessel wall. The sensor can thus be used to detect the magnitude of the substantially radially outward force. A disclosed apparatus determines fluid pressure inside a vessel without compromising the integrity of the vessel. The apparatus includes a sensor and a band operatively associated with the sensor and configured to at least partially encircle the vessel so as to retain the sensor in operative communication against the external wall of the vessel.
    • 所公开的方法确定容器内的流体压力而不损害容器的完整性。 传感器被定位成与容器的外壁可操作地连通,使得容器的外壁的膨胀对传感器施加相对于容器大致径向向外的力。 响应于由外部血管壁施加的基本径向向外的力,基本上径向向内的力被引导抵靠传感器。 因此,传感器可用于检测基本径向向外的力的大小。 所公开的装置确定容器内的流体压力而不损害容器的完整性。 该装置包括传感器和与传感器可操作地相关联的带,并被配置为至少部分地环绕容器,以便将传感器保持在与血管的外壁有效连通的位置。