SENSOR HEAD FOR USE WITH IMPLANTABLE DEVICES

    公开(公告)号:US20160178558A1

    公开(公告)日:2016-06-23

    申请号:US15059086

    申请日:2016-03-02

    Applicant: DexCom, Inc.

    Abstract: The present invention provides a sensor head for use in an implantable device that measures the concentration of an analyte in a biological fluid which includes: a non-conductive body; a working electrode, a reference electrode and a counter electrode, wherein the electrodes pass through the non-conductive body forming an electrochemically reactive surface at one location on the body and forming an electronic connection at another location on the body, further wherein the electrochemically reactive surface of the counter electrode is greater than the surface area of the working electrode; and a multi-region membrane affixed to the nonconductive body and covering the working electrode, reference electrode and counter electrode. In addition, the present invention provides an implantable device including at least one of the sensor heads of the invention and methods of monitoring glucose levels in a host utilizing the implantable device of the invention.

    Sensor head for use with implantable devices

    公开(公告)号:US09328371B2

    公开(公告)日:2016-05-03

    申请号:US13943622

    申请日:2013-07-16

    Applicant: DexCom, Inc.

    Abstract: The present invention provides a sensor head for use in an implantable device that measures the concentration of an analyte in a biological fluid which includes: a non-conductive body; a working electrode, a reference electrode and a counter electrode, wherein the electrodes pass through the non-conductive body forming an electrochemically reactive surface at one location on the body and forming an electronic connection at another location on the body, further wherein the electrochemically reactive surface of the counter electrode is greater than the surface area of the working electrode; and a multi-region membrane affixed to the nonconductive body and covering the working electrode, reference electrode and counter electrode. In addition, the present invention provides an implantable device including at least one of the sensor heads of the invention and methods of monitoring glucose levels in a host utilizing the implantable device of the invention.

    MEMBRANE FOR USE WITH IMPLANTABLE DEVICES
    25.
    发明申请
    MEMBRANE FOR USE WITH IMPLANTABLE DEVICES 审中-公开
    膜与可植入器件的使用

    公开(公告)号:US20150157248A1

    公开(公告)日:2015-06-11

    申请号:US14619651

    申请日:2015-02-11

    Applicant: DexCom, Inc.

    Abstract: The present invention provides a biointerface membrane for use with an implantable device that interferes with the formation of a barrier cell layer including; a first domain distal to the implantable device wherein the first domain supports tissue attachment and interferes with barrier cell layer formation and a second domain proximal to the implantable device wherein the second domain is resistant to cellular attachment and is impermeable to cells. In addition, the present invention provides sensors including the biointerface membrane, implantable devices including these sensors or biointerface membranes, and methods of monitoring glucose levels in a host utilizing the analyte detection implantable device of the invention. Other implantable devices which include the biointerface membrane of the present invention, such as devices for cell transplantation, drug delivery devices, and electrical signal delivery or measuring devices are also provided.

    Abstract translation: 本发明提供了一种用于与可植入装置一起使用的生物界面膜,其干扰屏障细胞层的形成,包括: 远离植入装置的第一区域,其中第一结构域支持组织附着并干扰阻挡细胞层形成,以及邻近可植入装置的第二结构域,其中第二结构域对细胞附着有抗性并且对细胞是不可渗透的。 此外,本发明提供了包括生物界面膜,包括这些传感器或生物界面膜的可植入装置的传感器,以及利用本发明的分析物检测可植入装置监测宿主中的葡萄糖水平的方法。 还提供了包括本发明的生物界面膜的其它可植入装置,例如用于细胞移植的装置,药物递送装置和电信号传递或测量装置。

    OXYGEN ENHANCING MEMBRANE SYSTEMS FOR IMPLANTABLE DEVICES
    26.
    发明申请
    OXYGEN ENHANCING MEMBRANE SYSTEMS FOR IMPLANTABLE DEVICES 有权
    用于可植入设备的氧气增强膜系统

    公开(公告)号:US20150057514A1

    公开(公告)日:2015-02-26

    申请号:US14529034

    申请日:2014-10-30

    Applicant: DexCom, Inc.

    Abstract: The present invention relates generally to systems and methods for increasing oxygen availability to implantable devices. The preferred embodiments provide a membrane system configured to provide protection of the device from the biological environment and/or a catalyst for enabling an enzymatic reaction, wherein the membrane system includes a polymer formed from a high oxygen soluble material. The high oxygen soluble polymer material is disposed adjacent to an oxygen-utilizing source on the implantable device so as to dynamically retain high oxygen availability to the oxygen-utilizing source during oxygen deficits. Membrane systems of the preferred embodiments are useful for implantable devices with oxygen-utilizing sources and/or that function in low oxygen environments, such as enzyme-based electrochemical sensors and cell transplantation devices.

    Abstract translation: 本发明一般涉及用于增加可植入装置的氧气可用性的系统和方法。 优选的实施方案提供了一种膜系统,其被配置为提供该装置与生物环境的保护和/或用于实现酶反应的催化剂,其中所述膜系统包括由高氧可溶性材料形成的聚合物。 高氧可溶性聚合物材料与可植入装置上的氧气源相邻设置,以便在缺氧期间动态地保持氧利用源的高氧可利用性。 优选实施方案的膜系统对于具有氧利用源的可植入装置和/或在低氧环境中起作用,例如基于酶的电化学传感器和细胞移植装置是有用的。

    MEMBRANE FOR USE WITH IMPLANTABLE DEVICES
    27.
    发明申请
    MEMBRANE FOR USE WITH IMPLANTABLE DEVICES 有权
    膜与可植入器件的使用

    公开(公告)号:US20140335343A1

    公开(公告)日:2014-11-13

    申请号:US14341468

    申请日:2014-07-25

    Applicant: DexCom, Inc.

    Abstract: The present invention provides a biointerface membrane for use with an implantable device that interferes with the formation of a barrier cell layer including; a first domain distal to the implantable device wherein the first domain supports tissue attachment and interferes with barrier cell layer formation and a second domain proximal to the implantable device wherein the second domain is resistant to cellular attachment and is impermeable to cells. In addition, the present invention provides sensors including the biointerface membrane, implantable devices including these sensors or biointerface membranes, and methods of monitoring glucose levels in a host utilizing the analyte detection implantable device of the invention. Other implantable devices which include the biointerface membrane of the present invention, such as devices for cell transplantation, drug delivery devices, and electrical signal delivery or measuring devices are also provided.

    Abstract translation: 本发明提供了一种用于与可植入装置一起使用的生物界面膜,其干扰屏障细胞层的形成,包括: 远离植入装置的第一区域,其中第一结构域支持组织附着并干扰阻挡细胞层形成,以及邻近可植入装置的第二结构域,其中第二结构域对细胞附着有抗性并且对细胞是不可渗透的。 此外,本发明提供了包括生物界面膜,包括这些传感器或生物界面膜的可植入装置的传感器,以及利用本发明的分析物检测可植入装置监测宿主中的葡萄糖水平的方法。 还提供了包括本发明的生物界面膜的其它可植入装置,例如用于细胞移植的装置,药物递送装置和电信号传递或测量装置。

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