Implantable pressure sensor
    7.
    发明授权

    公开(公告)号:US11422051B2

    公开(公告)日:2022-08-23

    申请号:US16462216

    申请日:2017-11-17

    IPC分类号: G01L27/00 A61M27/00 A61B5/03

    摘要: A device for use in pressure sensing such as hydrocephalus shunts, having a housing enclosing a chamber with at least one port communicating with the chamber. A wall of the chamber includes a flexible portion or thin diaphragm that deflects with transitions in pressure to contact an upstand structure of the housing. A pressure sensor is contained within an enclosure sealed from the chamber by a flexible membrane and which receives fluid pressure from the chamber. This arrangement allows for calibration of the device by identifying a knee feature in pressure data associated with the diaphragm making contact with the upstand.