US 12,467,849 B2
Measurement cuvette and radiation sensor, which can be detachably connected only in a predefined relative orientation
Felix Breitruck, Buchs (CH); Jürg Roffler, Chur (CH); Marie-Kristin Schreiber, Chur (CH); and Christoph Schranz, Fläsch (CH)
Assigned to HAMILTON MEDICAL AG, Bonaduz (CH)
Appl. No. 17/639,690
Filed by HAMILTON MEDICAL AG, Bonaduz (CH)
PCT Filed Sep. 8, 2020, PCT No. PCT/EP2020/075051
§ 371(c)(1), (2) Date Mar. 2, 2022,
PCT Pub. No. WO2021/048111, PCT Pub. Date Mar. 18, 2021.
Claims priority of application No. 102019124107.3 (DE), filed on Sep. 9, 2019.
Prior Publication US 2022/0291117 A1, Sep. 15, 2022
Int. Cl. G01N 21/05 (2006.01); A61B 5/083 (2006.01); A61M 16/00 (2006.01); A61M 16/08 (2006.01); A61M 16/10 (2006.01); G01N 21/3504 (2014.01)
CPC G01N 21/05 (2013.01) [A61B 5/0836 (2013.01); A61M 16/0003 (2014.02); A61M 16/0816 (2013.01); A61M 2016/103 (2013.01); A61M 2230/432 (2013.01); G01N 21/3504 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A measuring cuvette for detecting at least one fluid component of a fluid flowing through the measuring cuvette with the involvement of electromagnetic radiation, the measuring cuvette comprising:
a duct penetrating through the measuring cuvette along a duct path, where the duct path is conceived as penetrating through the duct centrally,
a first connector formation for connecting a first fluid-conveying line,
a second connector formation for connecting a second fluid-conveying line, and
a coupling and detection section between the first and the second connector formation, which
extends along a straight longitudinal axis between its first longitudinal end which is nearer to the first connector formation and its second longitudinal end which is nearer to the second connector formation,
is configured at least for irradiation of electromagnetic radiation into a duct region of the measuring cuvette surrounded by the coupling and detection section, and
is configured for detachable mechanical coupling with a radiation component, comprising a radiation source and/or a radiation sensor of the electromagnetic radiation,
where the measuring cuvette exhibits a physical orientation structure which allows detachable mechanical coupling of the measuring cuvette with the radiation component in a predetermined desirable relative orientation and prevents it in an undesirable relative orientation,
wherein the physical orientation structure is arranged and configured between the first and the second longitudinal end of the coupling and detection section at a distance to the longitudinal axis which varies, at least one of, along the longitudinal axis and with a dimension orthogonal to the longitudinal axis which varies along the longitudinal axis;
wherein the orientation structure extends along the longitudinal axis over more than one third of the dimension.