Extracorporeal blood therapy device and method for controlling blood warming device in extracorporeal blood therapy device
A treatment equipment, extracorporeal blood technology, applied in the direction of blood circulation treatment, drug equipment, other medical equipment, etc., can solve problems such as precipitation
Active Publication Date: 2019-06-11
GAMBRO LUNDIA AB
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Problems solved by technology
However, this scheme has many disadvantages
Warming of therapy or infusion fluids requires management of fluid degassing and can lead to problems with precipitation when bicarbonate solutions are used
Method used
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[0118] Figure 1 to Figure 3 A non-limiting embodiment of a device for extracorporeal treatment of blood is shown exemplarily. Note that in Figure 1 to Figure 3 The same components are identified by the same reference numerals.
[0119] figure 1 A first example of a blood treatment device 1 designed to achieve any of the following treatments is schematically shown: hemodialysis, hemofiltration, hemodiafiltration and ultrafiltration.
[0120] The device 1 comprises a treatment unit 2 having a primary chamber 3 and a secondary chamber 4 separated by a semipermeable membrane 5 . Depending on the treatment, the semipermeable membrane 5 of the treatment unit 2 can be selected to have different properties and performances. A blood withdrawal line 6 is connected to the inlet of the main chamber 3 and a blood return line 7 is connected to the outlet of the main chamber 3 . The blood withdrawal line 6 , the main chamber 3 and the blood return line 7 are part of an extracorporeal ...
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An extracorporeal blood treatment device (1) comprising a control unit (10) connectable to a blood warming device (200). The device (1) comprises: an extracorporeal blood circuit (100) and at least one infusion line (15, 21, 25) connected to the extracorporeal blood circuit (100). The control unit (10) is configured to perform the following procedure: receiving a signal indicating a desired blood temperature (T) at the end (70) of the blood return line (7) des ), the end (70) of the blood return line (7) is configured to be connected to the venous vascular access of the patient (P); at least to receive the infusion fluid in at least one infusion line (15, 21, 25) At least one flow rate (Q PBP , Q REP1 , Q REP2 ) related first signal; calculate the operating parameters (T OUT ;P w ) to maintain the desired blood temperature (T des ), the warming device (200) is configured to heat the blood heating region (H) of the extracorporeal blood circuit (100). The set point is calculated based on input parameters comprising: at least a first value representing a desired blood temperature (T des ); and at least one selected from the following group: the first signal (Q REP1 , Q PBP , Q REP2 ); and a second value representing the temperature (T REP1 , T PBP , T REP2 ).
Description
technical field [0001] The invention relates to an extracorporeal treatment device for blood. According to certain aspects, an extracorporeal therapeutic device according to the invention incorporates or includes a blood warming device. The present invention also relates to a control method of a blood warming device, wherein the blood warming device may be a part of extracorporeal blood treatment equipment or may be an independent device communicating with extracorporeal blood treatment equipment. Background technique [0002] Extracorporeal blood therapy involves removing blood from a patient, treating the blood outside the patient's body, and returning the treated blood to the patient. Extracorporeal blood therapy is commonly used to extract unwanted substances or molecules from a patient's blood and / or to add desired substances or molecules to the blood. Extracorporeal blood therapy is used in patients who cannot effectively remove substances from their blood, for examp...
Claims
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IPC IPC(8): A61M1/36A61M1/16
CPCA61M1/1629A61M1/166A61M1/369A61M2205/3372A61M1/3623A61M2205/505A61M2205/52
Inventor 多米尼克·普丘林
Owner GAMBRO LUNDIA AB