US 11,852,638 B2
Calcium ion concentration measuring device
Rika Utsumi, Kyoto (JP); and Manabu Shibata, Kyoto (JP)
Assigned to HORIBA ADVANCED TECHNO, CO., LTD., Kyoto (JP)
Appl. No. 17/271,763
Filed by HORIBA Advanced Techno, Co., Ltd., Kyoto (JP)
PCT Filed Aug. 2, 2019, PCT No. PCT/JP2019/030519
§ 371(c)(1), (2) Date Feb. 26, 2021,
PCT Pub. No. WO2020/044958, PCT Pub. Date Mar. 5, 2020.
Claims priority of application No. 2018-159798 (JP), filed on Aug. 28, 2018.
Prior Publication US 2022/0026450 A1, Jan. 27, 2022
Int. Cl. G01N 33/84 (2006.01); G01N 33/49 (2006.01); B01L 3/00 (2006.01)
CPC G01N 33/84 (2013.01) [B01L 3/5023 (2013.01); B01L 13/02 (2019.08); B01L 2300/046 (2013.01); B01L 2300/069 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A portable calcium ion concentration measuring device that measures a concentration of a calcium ion in blood of a domestic animal, comprising
a responsive membrane that selectively reacts to the calcium ion,
an internal liquid housed in a space separated from the outside by the responsive membrane and
an internal electrode arranged to be in contact with the internal liquid, wherein
an isothermal intersection point of the internal liquid is set within a range of the concentration of the calcium ion contained in the blood of the domestic animal, and the measurement of the concentration of the calcium ions can be conducted on the spot where the blood of the domestic animal is collected.
 
8. A method for measuring calcium ion concentration that measures a concentration of a calcium ion contained in blood of a domestic animal by the use of a portable calcium ion concentration measuring device comprising a responsive membrane that selectively reacts to the calcium ion, an internal liquid housed in a space separated from the outside by the responsive membrane and an internal electrode arranged to be in contact with the internal liquid, wherein
an isothermal intersection point of the internal liquid is set within a range of the concentration of the calcium ion contained in the blood of the domestic animal.