Abstract: A device for measuring the pressure of blood, intended to engage with a section (16) for measuring the pressure of blood, which section includes a membrane (38) which is axially deformable under the effect of the blood pressure and which is designed to be mounted on a support structure (20, 22) bearing especially a load sensor (26) arranged substantially facing the membrane (38), characterized in that it includes controlled elements (58) for the relative axial displacement of the sensitive member (52) of the load sensor (26), with respect to the support structure (20, 22), so that the axial position of the sensitive member (52) can be adjusted with respect to the external face (42) of the membrane (38), especially for the purpose of carrying out an initial calibration operation. The invention also proposes a process for controlling the device.

Abstract: The invention relates to a blood treatment device by extracorporeal circulation comprising a filter having a primary chamber and a secondary chamber separated by a semi-permeable membrane; a blood circuit comprising an arterial line intended to come from the patient, the filter's primary chamber and the venous line intended to return to the patient; a dialysate circuit comprising the filter's secondary chamber and at least a drain line for circulating the waste intended to come from the filter and intended to go to a drain; a first bag in fluid communication with the drain line; at least a first gravimetric weighing means linked to the first bag, fluid flow rate adjustment means acting on the drain line; a control unit linked to the first gravimetric weighing means and with the fluid flow rate adjustment means; a second bag in fluid communication with the drain line, the control unit being capable of receiving weight signals from the first gravimetric weighing means and of controlling the fluid flow rate adju

Abstract: A device for the extracorporeal treatment of blood comprising at least one exchanger (1) comprising a semi-permeable membrane (6) dividing said exchanger into a first chamber (7) and a second chamber (8), at least one first inlet (2) for blood to be treated being in fluid communication with the first chamber (7) of the exchanger, a first fluid outlet (4) being in fluid communication with the first chamber (7) of the exchanger and a second fluid outlet (5) being in fluid communication with the second chamber (8) of the exchanger, an input line (10) for blood to be treated connected to the first inlet (2) of the exchanger (1), a blood output line (11) connected to the first outlet (4) of the exchanger (1), at least one treatment unit (21) comprising a semi-permeable membrane (26) dividing the treatment unit (21) into a first chamber (27) and a second chamber (28), at least one first fluid inlet (22) being in fluid communication with the second chamber (28) of the treatment unit (21) and at least one first fluid

Abstract: The invention concerns a device for treating blood by extracorporeal circulation (101) comprising a filter (102) having a first chamber (103) and a second chamber (104) separated by a semi-permeable membrane (105), an arterial line (106) connected to the first chamber (103) of the filter (102), a venous line (108) issuing from the first chamber (103) of the filter (102), a channel (109) used for pre-infusion of a substance for regional anticoagulation and linked to the arterial line (106), a purge channel (110) issuing from the second chamber (104) of the filter (102), an air separator (112) on the venous line (108), a line (112) for post-infusion of a solution at least partially re-establishing the ionic equilibrium of the blood downstream of the air separator (111), and an air detector (113) downstream of the post-infusion line (112).

Abstract: The invention proposes a device for measuring the pressure of blood in a pipe (44) of an extracorporeal blood circuit (42) includes a pressure measurement section (46) having a substantially rigid wall (64) including a hole (66) which is sealed by a closure element (68), the internal face (70) of which is in contact with the blood and the external face (72) of which is in contact with the ambient air, it being possible for the closure element (68) to be elastically deformed overall along a deformation axis (A—A) under the effect of the blood pressure. The closure element (68) is made in a single piece with the associated rigid wall (64) of the pressure measurement section (46).

Abstract: A device for measuring the pressure of blood in a pipe (44) of an extracoporeal blood cicuit, includes a pressure measurement section (46) having a compartment (58) which is delimited especially by a main wall (64) and by a secondary wall (65) facing it. The two walls (64, 65) have a hole (66, 84) which is closed by a closure element (68, 86) which can be elastically deformed under the effect of the blood pressure, and the compartment (58) has a spacer (94) which transmits the movements from the closure element (86) of the secondary wall (65) to the closure element (68) of the main wall (64), so that a load sensor (56) can measure a force which corresponds to a so-called “negative” blood pressure.