Abstract: 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.

Abstract: 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 fo

Abstract: The invention relates to a system, and the associated method for using said system, for treating haemorrhagic fluid previously taken from a patient for the purpose of autotransfusion, comprising a unit for treating (100) haemorrhagic fluid, said treatment unit (100) comprising: a filtration device (110) for tangential filtration comprising a filtration membrane (113) arranged in a housing (114) so as to separate an intake chamber (111) from a discharge chamber (112), the intake chamber (111) and the discharge chamber (112) each having an inlet (111a; 112a) and an outlet (111b; 112b) for fluids; a treatment pouch (140) having an inlet (140a) and an outlet (140b) fluidically connected by a recirculation line (150) to the outlet (111b) and to the inlet (111a) of the intake chamber (111) of the filtration device (110), respectively, allowing haemorrhagic fluid to circulate in the recirculation line (150) in a direction going from the outlet (140b) of the treatment pouch (140) to the inlet (140a) of the treatme

Abstract: The invention relates to a system, and the associated method for using said system, for treating haemorrhagic fluid previously taken from a patient for the purpose of autotransfusion, comprising a unit for treating (100) haemorrhagic fluid, said treatment unit (100) comprising: a filtration device (110) for tangential filtration comprising a filtration membrane (113) arranged in a housing (114) so as to separate an intake chamber (111) from a discharge chamber (112), the intake chamber (111) and the discharge chamber (112) each having an inlet (111a; 112a) and an outlet (111b; 112b) for fluids; a treatment pouch (140) having an inlet (140a) and an outlet (140b) fluidically connected by a recirculation line (150) to the outlet (111b) and to the inlet (111a) of the intake chamber (111) of the filtration device (110), respectively, allowing haemorrhagic fluid to circulate in the recirculation line (150) in a direction going from the outlet (140b) of the treatment pouch (140) to the inlet (140a) of the treatme

Abstract: A method and system for treating, by filtration, haemorrhagic fluid contained in a container with a view to subsequent autotransfusion, including at least one step of concentrating by filtration said haemorrhagic fluid in order to increase the concentration of red blood cells in the haemorrhagic fluid to reach a target haematocrit level while at the same time removing from the haemorrhagic fluid a filtrate comprising compounds not desired for autotransfusion, further including: a preliminary step of measuring the haematocrit level of the haemorrhagic fluid; and a dilution step consisting in adding to the volume of haemorrhagic fluid to be treated a determined volume of dilution fluid, the determined volume of dilution fluid being calculated as a function of the measured haematocrit level of the haemorrhagic fluid and the target haematocrit level.

Abstract: The invention relates to a system, and the associated method for using said system, for treating haemorrhagic fluid previously taken from a patient for the purpose of autotransfusion, comprising a unit for treating (100) haemorrhagic fluid, said treatment unit (100) comprising: a filtration device (110) for tangential filtration comprising a filtration membrane (113) arranged in a housing (114) so as to separate an intake chamber (111) from a discharge chamber (112), the intake chamber (111) and the discharge chamber (112) each having an inlet (111a; 112a) and an outlet (111b; 112b) for fluids; a treatment pouch (140) having an inlet (140a) and an outlet (140b) fluidically connected by a recirculation line (150) to the outlet (111b) and to the inlet (111a) of the intake chamber (111) of the filtration device (110), respectively, allowing haemorrhagic fluid to circulate in the recirculation line (150) in a direction going from the outlet (140b) of the treatment pouch (140) to the inlet (140a) of the treatme

Abstract: The invention relates to a system, and the associated method for using said system, for treating haemorrhagic fluid previously taken from a patient for the purpose of autotransfusion, comprising a unit for treating (100) haemorrhagic fluid, said treatment unit (100) comprising: a filtration device (110) for tangential filtration comprising a filtration membrane (113) arranged in a housing (114) so as to separate an intake chamber (111) from a discharge chamber (112), the intake chamber (111) and the discharge chamber (112) each having an inlet (111a; 112a) and an outlet (111b; 112b) for fluids; a treatment pouch (140) having an inlet (140a) and an outlet (140b) fluidically connected by a recirculation line (150) to the outlet (111b) and to the inlet (111a) of the intake chamber (111) of the filtration device (110), respectively, allowing haemorrhagic fluid to circulate in the recirculation line (150) in a direction going from the outlet (140b) of the treatment pouch (140) to the inlet (140a) of the treatme

Abstract: A device for the filtration of a complex fluid composition such as blood, includes a base (12) with a bottom (18), a top (14) with a bottom (30), and a membrane (16) that is arranged between the base and the top so as to define a low chamber C1 and a high chamber C2, with an input tap (26) of the complex composition that is to be filtered emptying into the low chamber C1, an output tap (28) of the retentate with elements for adjusting the flow rate emptying into this same low chamber C1, and an output tap (36, 36-1) of the high chamber C2, whereby this output tap (36, 36-1) of the permeate is subjected to negative pressure.

Abstract: A device for the filtration of a complex fluid composition such as blood, includes a base (12) with a bottom (18), a top (14) with a bottom (30), and a membrane (16) that is arranged between the base and the top so as to define a low chamber C1 and a high chamber C2, with an input tap (26) of the complex composition that is to be filtered emptying into the low chamber C1, an output tap (28) of the retentate with elements for adjusting the flow rate emptying into this same low chamber C1, and an output tap (36, 36-1) of the high chamber C2, whereby this output tap (36, 36-1) of the permeate is subjected to negative pressure.

Abstract: A process for treating the hemorrhage fluids of a patient at the time of a surgical procedure with the aim of carrying out an autotransfusion, includes a stage for recovering the hemorrhage fluids with simultaneous introduction of agents such as anticoagulant and/or diluting agents, at least one stage for the mechanical separation/concentration of this hemodiluted hemorrhage fluid in order to concentrate its content in red blood cells and partially purify it, this phase being collected in a sterile manner so as to be fit for injecting back to the patient. Also described is the related device.

Abstract: A process for treating the haemorrhage fluids of a patient at the time of a surgical procedure with the aim of carrying out an autotransfusion, includes a stage for recovering the haemorrhage fluids with simultaneous introduction of agents such as anticoagulant and/or diluting agents, at least one stage for the mechanical separation/concentration of this haemodiluted haemorrhage fluid in order to concentrate its content in red blood cells and partially purify it, this phase being collected in a sterile manner so as to be fit for injecting back to the patient. Also described is the related device.