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    • 8. 发明申请
    • HYDROGEL BASED DEVICE FOR DETECTING AN ENVIRONMENTAL STATE
    • 用于检测环境状态的基于HYDROGEL的设备
    • WO2008122926A1
    • 2008-10-16
    • PCT/IB2008/051224
    • 2008-04-02
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.IORDANOV, Ventzeslav, P.KRIJNSEN, Hendrika, C.VAN BRUGGEN, Michel, P., B.JANNER, Anna-MariaKURT, Ralph
    • IORDANOV, Ventzeslav, P.KRIJNSEN, Hendrika, C.VAN BRUGGEN, Michel, P., B.JANNER, Anna-MariaKURT, Ralph
    • A61B5/00
    • A61B5/1459A61B5/0008A61B5/0031A61B5/4839
    • The invention relates to a transducer device (100,200,300,400) for detecting an environmental state or a change in the environmental state, in particular for detecting an environmental state within a biological material. The transducer device (100,200,300,400) comprises a channel (2,22,51) comprising a fluid, a hydrogel material (1,21,51), which is adapted to change its volume when getting into contact with an environmental material and/or when detecting an environmental change, and which is mechanically coupled to the channel (2,22,51) such that the volume of the channel (2,22,51) changes when the volume of the hydrogel material (1,21,51) changes. The transducer device (100,200,300,400) further comprises a sensor (11,12,25,35), which is adapted to generate a signal upon detection of the change of a physical property of the fluid that is induced by the volume change of the channel (2,22,51). By applying the transducer device (100,200,300,400) according to the invention within a bodily lumen, an accurate monitoring of physiological parameters, for which the hydrogel material (1,21,51) is sensitive, within the bodily lumen is possible. It is also possible to apply the transducer device (100,200,300,400) outside of the bodily lumen, for example to monitor the blood of a patient outside the bodily lumen.
    • 本发明涉及用于检测环境状态或环境状态变化的换能器装置(100,200,300,400),特别是用于检测生物材料内的环境状态。 所述换能器装置(100,200,300,400)包括包含流体的通道(2,22,51),水凝胶材料(1,21,51),其适于在与环境材料接触时改变其体积,和/或 检测环境变化,并且其机械耦合到通道(2,22,51),使得当水凝胶材料(1,21,51)的体积变化时,通道(2,22,51)的体积改变 。 换能器装置(100,200,300,400)还包括传感器(11,12,25,35),其适于在检测到由通道的体积变化引起的流体的物理特性的变化时产生信号( 2,22,51)。 通过将根据本发明的换能器装置(100,200,300,400)应用于体腔内,可以精确地监测身体内水凝胶材料(1,21,51)敏感的生理参数。 也可以将换能器装置(100,200,300,400)应用于体腔外,例如监测患者体外的血液。