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公开(公告)号：US20170224899A1
公开(公告)日：2017-08-10
申请号：US15501541
申请日：2015-08-05
发明人： Ralf WOJKE , Paul WIENEKE
IPC分类号： A61M1/36
摘要： The invention relates to a method of purging gas bubbles from at least one target zone of an extracorporeal blood circuit, preferably of an extracorporeal blood circuit of a dialysis machine, with a flushing liquid, wherein the flow rate and/or the pressure of the flushing liquid in the extracorporeal blood circuit is/are inconstant at least at times during the flushing process; and/or wherein the flow rate of the flushing liquid in the extracorporeal blood circuit lies above a range of possible flow rates at least at times during the flushing process, which range is used during the treatment for the blood. The invention furthermore relates to an extracorporeal blood treatment unit having an extracorporeal blood circuit, a pump and a control unit, with the control unit being configured to carry out a flushing process in accordance with the invention. The invention furthermore relates to an extracorporeal blood treatment unit having an extracorporeal blood circuit, a pump and a control unit, with the control unit being configured such that the conveying speed for blood is slowly increased after a standstill of the pump or after an operation of the pump at throttled speed.
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公开(公告)号：US20170361010A1
公开(公告)日：2017-12-21
申请号：US15534380
申请日：2015-12-02
发明人： Ralf WOJKE , Paul WIENEKE
CPC分类号： A61M1/361 , A61M1/16 , A61M1/1603 , A61M1/1613 , A61M1/34 , A61M1/3403 , A61M1/3413 , A61M1/342 , A61M1/36 , A61M1/3612 , A61M1/3644 , A61M2205/3331 , A61M2205/3334 , A61M2205/3341 , A61M2205/52 , A61M2205/70 , A61M2206/10 , A61M2206/11 , A61M2230/207
摘要： The present invention relates to a dialysis machine having an extracorporeal circuit in which a dialyzer is located which has a chamber on the blood side which is flowed through by blood and a first pressure sensor, which is located upstream of the chamber on the blood side in the direction of flow of the blood, for determining a first pressure value and a second pressure sensor, which is located downstream of the chamber on the blood side in the direction of flow of the blood, for determining a second pressure value, wherein the dialysis machine has first means for determining the pressure difference between the second pressure value and the first pressure value, second means for determining the dynamic viscosity of the blood on the basis of the determined pressure difference, of the blood flow rate through the chamber on the blood side and of one or more characteristic properties of the dialyzer and third means for determining the hematocrit or the hemoglobin value of the blood on the basis of the determined viscosity, and wherein the dialysis machine has a control or regulation unit which is configured such that it sets the blood flow rate and/or the dilution rate and/or the ultrafiltration rate such that the time change of the hematocrit and/or of the hemoglobin value does not exceed a limit value or lies in a desired value range.
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公开(公告)号：US20170232179A1
公开(公告)日：2017-08-17
申请号：US15501547
申请日：2015-08-05
发明人： Ralf WOJKE , Paul WIENEKE
CPC分类号： A61M1/3627 , A61M1/3626 , A61M1/3643 , A61M1/3644 , A61M1/3672 , A61M39/223 , A61M39/28 , A61M2205/3331 , A61M2205/3334
摘要： The invention relates to a method of purging gas bubbles from a target zone of an extracorporeal blood circuit of a dialysis machine, wherein the target zone is flowed through by flushing liquid which enters into the target zone through an inflow and exits it again through an outflow, wherein the inflow differs from the arterial port and the outflow differs from the venous port of the extracorporeal blood circuit. The invention furthermore relates to a dialysis machine having an extracorporeal blood circuit and a control unit, with the extracorporeal blood circuit having an inflow and an outflow for flushing liquid, with the inflow differing from the arterial port and the outflow differing from the venous port of the extracorporeal blood circuit, and with the control unit being configured to carry out a method in accordance with the invention. The invention furthermore relates to a disposable for the dialysis treatment, wherein the disposable comprises an arterial line, elements of a blood pump, a dialyzer and a venous line, wherein the disposable has an interface for the inflow of flushing liquid in the arterial line and an interface for the outflow of flushing liquid in the venous line, and wherein the interface for the inflow differs from the arterial port and the interface for the outflow differs from the venous port of the hose set.
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公开(公告)号：US20170224902A1
公开(公告)日：2017-08-10
申请号：US15501552
申请日：2015-08-05
发明人： Ralf WOJKE , Paul WIENEKE
CPC分类号： A61M1/3673 , A61M1/3643 , A61M1/3644 , A61M39/28 , A61M2202/0478
摘要： The invention relates to a method of flushing an extracorporeal blood circuit, preferably an extracorporeal blood circuit of a dialysis machine, with a flushing liquid, wherein the flushing liquid contains an anticoagulant agent, preferably heparin. The invention further relates to an extracorporeal blood treatment unit, preferably to a dialysis machine, having an extracorporeal blood circuit and a control unit, wherein the control unit is configured to carry out a flushing method in accordance with one of the preceding claims before the start of the treatment and/or intermittently during the treatment.
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公开(公告)号：US20170216571A1
公开(公告)日：2017-08-03
申请号：US15501554
申请日：2015-08-04
发明人： Ralf WOJKE , Paul WIENEKE
CPC分类号： A61M39/10 , A61M1/267 , A61M5/36 , A61M2039/1033 , A61M2039/1066 , A61M2039/1083 , A61M2039/1088 , Y10T29/49885
摘要： The invention relates to a method of increasing the leak tightness of a mechanical connector of an extracorporeal blood treatment machine, wherein the mechanical connector has a pair of connection parts which have corresponding sealing surfaces, with at least one of the two sealing surfaces being wetted at least sectionally by a viscous fluid before the joining together of the connection parts and/or with the connection gap between the connection parts being covered by a sheath after their joining together. The invention further relates to an extracorporeal blood treatment machine comprising a mechanical connector which has a pair of connection parts which have corresponding sealing surfaces, with the sealing surfaces being at least sectionally wetted with a viscous liquid with a closed connector and/or with the connection gap between the connection parts of the closed connector being covered by a sheath.
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