公开(公告)号：US20230280331A1

公开(公告)日：2023-09-07

申请号：US18004399

申请日：2021-07-08

申请人： I-SEP

发明人： Stéphane Chollet ,  Gaëtan Coulon ,  Benoît Decouture ,  Sylvain Picot ,  Patricia Forest-Villegas ,  Francis Gadrat

IPC分类号： G01N33/49 ,  G01N21/84 ,  G01N21/25 ,  A61M1/36

CPC分类号： G01N33/4915 ,  G01N21/84 ,  G01N21/255 ,  A61M1/3609 ,  A61M2205/3306 ,  A61M2230/207 ,  G01N2201/069

摘要： The invention relates to a device and method for determining the haematocrit and/or haemoglobin level of a liquid flowing in a tubular portion (2), the method comprising:—emitting light beams in the direction of the tubular portion (2) with at least two light sources (11; 21), each of the two light sources (11; 21) being configured to emit light beams at an emission wavelength chosen to correspond to an isobestic point of the haemoglobin;—receiving light signals transmitted through the tubular portion (2) with at least two light sensors (12; 22), each light sensor (12; 22) being associated with one of the two light sources (11; 21);—calculating the haematocrit or haemoglobin level in the liquid by processing the light signals received by the light sensors (12; 22); characterised in that the emission power of at least one of the light sources (11; 21) is modified while the haematocrit and/or the haemoglobin level is determined according to the haematocrit and/or respectively the haemoglobin level calculated for the liquid.

公开(公告)号：US20230347036A1

公开(公告)日：2023-11-02

申请号：US18004547

申请日：2021-07-08

申请人： I-SEP

发明人： Stéphane Chollet ,  Gaëtan Coulon ,  Benoît Decouture ,  Sylvain Picot ,  Patricia Forest-Villegas ,  Francis Gadrat

IPC分类号： A61M1/36

CPC分类号： A61M1/3609 ,  A61M2205/3306 ,  A61M2230/207

摘要： A device for determining the level of haematocrit and/or the level of haemoglobin of a liquid circulating in the tubular portion includes two emitter-receiver assemblies, each emitter-receiver assembly including a light source and a light sensor intended to be arranged on either side of the tubular portion at a region of circulation of the liquid for a transmission measurement; the light source of each of the two emitter-receiver assemblies being configured to emit light beams at an emission wavelength chosen to correspond with an isobestic point of haemoglobin; each emitter-receiver assembly further comprising including a system for collimating the light beam emitted from the corresponding light source towards the corresponding light sensor.