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Biological information measurement cartridge and measurement device using same

  • US 10,258,263 B2
  • Filed: 10/29/2012
  • Issued: 04/16/2019
  • Est. Priority Date: 11/08/2011
  • Status: Active Grant
First Claim
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1. A biological information measurement cartridge comprising:

  • a cartridge main body including a first end side, a second end side, and a surface;

    a sensor unit provided on the first end side of the cartridge main body; and

    a protective cap removably provided on the first end side of the cartridge main body;

    the cartridge main body including;

    a puncture opening including a back, and being disposed on the first end side of the cartridge main body;

    a puncture needle provided at the back of the puncture opening; and

    a puncture needle retainer configured to retain the puncture needle such that the puncture needle is slidable toward the puncture opening;

    the sensor unit including;

    a depositing opening disposed on the first end side of the cartridge main body;

    an introduction channel configured to communicate with the depositing opening; and

    an introduction promoting hole configured to communicate with the introduction channel and open at a part of a surface of the sensor unit; and

    the protective cap including;

    a puncture needle protector in which the puncture needle of the cartridge main body is to be inserted; and

    a sensor protector configured to close the depositing opening and the introduction promoting hole in a sealed state by contacting the sensor unit;

    wherein;

    a recessed portion is defined between the puncture needle and the sensor unit on the first end side of the cartridge main body;

    the puncture needle and the sensor unit are spaced apart at a predetermined distance by the recessed portion in a direction that is orthogonal to a longitudinal direction of the cartridge main body;

    the sensor protector includes a first bottom portion, an outer peripheral wall, an annular insertion receiving portion, and a protruding portion configured to be inserted into the recessed portion;

    the outer peripheral wall includes a first bottom portion side and protrudes toward the second end side of the cartridge main body;

    the annular insertion receiving portion is defined by connecting two side surfaces of the protruding portion to the first bottom portion side of the outer peripheral wall; and

    the protruding portion protrudes toward the second end side of the cartridge main body and has a flat plate shape.

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