OPTICAL DISPLACEMENT SENSOR FOR INFUSION DEVICES
    10.
    发明申请
    OPTICAL DISPLACEMENT SENSOR FOR INFUSION DEVICES 有权
    用于输液装置的光学位移传感器

    公开(公告)号:US20140039397A1

    公开(公告)日:2014-02-06

    申请号:US14047488

    申请日:2013-10-07

    IPC分类号: A61M5/168

    摘要: An optical sensor for a delivery device having a piston that displaces a substance, such as a fluid, from a reservoir. The optical sensor has a light source and a detector array for imaging encoding features disposed along a plunger rod coupled to the piston. By virtue of the pattern of encoding features, an absolute position of the plunger rod relative to a fiducial position may be determined uniquely. Thus, the volume of fluid remaining in the reservoir, the rate of fluid delivery, and proper loading of the reservoir may be accurately ascertained. Additionally, the encoding may serve to uniquely identify a version of the reservoir which may be supplied in various versions corresponding, for example, to differing concentrations of a therapeutic agent to be dispensed.

    摘要翻译: 一种用于输送装置的光学传感器,其具有从贮存器移位诸如流体的物质的活塞。 光学传感器具有光源和检测器阵列,用于对沿着联接到活塞的柱塞杆设置的编码特征成像。 凭借编码特征的图案,可以唯一地确定柱塞杆相对于基准位置的绝对位置。 因此,可以准确地确定储存器中残留的流体的体积,流体输送速率和储存器的适当负载。 此外,编码可以用于唯一地识别可以以例如对应于待分配的治疗剂的不同浓度的各种形式提供的储存器的版本。