Apparatus for extracorporeal blood treatment

    公开(公告)号:US11383012B2

    公开(公告)日:2022-07-12

    申请号:US16463788

    申请日:2017-10-26

    申请人: GAMBRO LUNDIA AB

    IPC分类号: A61M1/34 A61M1/16 A61M1/36

    摘要: An extracorporeal blood treatment apparatus is provided comprising a filtration unit (2) connected to a blood circuit (17) and to a dialysate circuit (32), a preparation device (9) for preparing and regulating the composition of the dialysis fluid; a control unit (12) is configured for setting a sodium concentration value for the dialysis fluid in the dialysis supply line (8) at a set point; the setting of the sodium concentration includes the sub-step of calculating the sodium concentration value as an algebraic sum of a main contribution term based on the blood plasma conductivity and of an adjustment contribution term based on a concentration of at least a substance in the dialysis fluid chosen in the group including bicarbonate, potassium, acetate, lactate, citrate, magnesium, calcium, sulphate, and phosphate.

    Apparatus for extracorporeal blood treatment

    公开(公告)号:US11883571B2

    公开(公告)日:2024-01-30

    申请号:US16849456

    申请日:2020-04-15

    申请人: GAMBRO LUNDIA AB

    IPC分类号: A61M1/16 A61M1/36

    摘要: An extracorporeal blood treatment apparatus includes a filtration unit (2) connected to a blood circuit (17) and a dialysate circuit (32), a preparation device (9) for preparing and regulating the composition of the dialysis fluid, and a sensor (11) for measuring conductivity of the dialysate (i.e. spent dialysis fluid); a control unit (12) configured for setting a sodium concentration in the dialysis fluid and after setting the dialysis fluid at the initial set point, circulating the dialysis fluid and blood through the filtration unit (2), measuring an initial conductivity value of the dialysate at the beginning of the treatment, and calculating, based on the measured initial conductivity value and on the corresponding conductivity value of the dialysis fluid, the value of the initial plasma conductivity, said circulating of the dialysis fluid up to the calculating of the initial plasma conductivity performed by maintaining the dialysis fluid conductivity substantially constant.

    Apparatus for extracorporeal blood treatment

    公开(公告)号:US10646632B2

    公开(公告)日:2020-05-12

    申请号:US15574956

    申请日:2016-05-23

    申请人: GAMBRO LUNDIA AB

    IPC分类号: A61M1/16 A61M1/36

    摘要: An extracorporeal blood treatment apparatus is provided comprising a filtration unit (2) connected to a blood circuit (17) and to a dialysate circuit (32), a preparation device (9) for preparing and regulating the composition of the dialysis fluid, and a sensor (11) for measuring conductivity of the dialysate (i.e. spent dialysis fluid); a control unit (12) configured for setting a sodium concentration in the dialysis fluid and after setting the dialysis fluid at the initial set point, circulating the dialysis fluid and blood through the filtration unit (2), measuring an initial conductivity value of the dialysate at the beginning of the treatment, and calculating, based on the measured initial conductivity value of the spent dialysis fluid and on the corresponding conductivity value of the dialysis fluid, the value of the initial plasma conductivity, said circulating the dialysis fluid up to the calculating of the initial plasma conductivity being performed maintaining the dialysis fluid conductivity substantially constant.

    Apparatus for extracorporeal blood treatment

    公开(公告)号:US11426501B2

    公开(公告)日:2022-08-30

    申请号:US16463781

    申请日:2017-10-27

    申请人: GAMBRO LUNDIA AB

    摘要: An extracorporeal blood treatment apparatus is provided comprising a filtration unit (2) connected to a blood circuit (17) and to a dialysate circuit (32), a preparation device (9) for preparing and regulating the composition of the dialysis fluid, and a sensor (11) for measuring conductivity of the dialysate (i.e. spent dialysis fluid); a control unit (12) configured for setting a sodium concentration in the dialysis fluid and after setting the dialysis fluid at the initial set point, circulating the dialysis fluid and/or the substitution fluid, measuring an initial conductivity value of the dialysate at the beginning of the treatment, and calculating, based on the measured initial conductivity value of the spent dialysis fluid and on the corresponding conductivity value of the dialysis fluid, the value of the initial plasma conductivity, said circulating the dialysis fluid up to the calculating of the initial plasma conductivity being performed maintaining the dialysis fluid conductivity substantially constant.