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Equipment for extra-corporeal treatment of blood, comprising an evaluation- and control unit

A blood therapy and control unit technology, applied in the field of blood therapy instruments, can solve problems such as rough assessment of vascular access

Active Publication Date: 2018-10-23
FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, only a very rough assessment of vascular access can be made based on recirculation values ​​alone

Method used

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  • Equipment for extra-corporeal treatment of blood, comprising an evaluation- and control unit
  • Equipment for extra-corporeal treatment of blood, comprising an evaluation- and control unit
  • Equipment for extra-corporeal treatment of blood, comprising an evaluation- and control unit

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Experimental program
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Embodiment

[0068] exist figure 1 A schematic diagram of an embodiment of a dialyzer according to the invention is shown in .

[0069] The dialyzer is generally indicated with the reference number 1 in the figures. The dialyzer has an extracorporeal blood circuit 2 which, in a known manner, comprises an arterial line 3 with a blood pump 4 , a dialyzer 5 and a venous line 6 . Arterial line 3 and venous line 6 are connected to blood vessel 9 of patient 10 via arterial needle 7 or venous needle 8 .

[0070] Arranged in the dialyzer 5 is a semipermeable membrane 11 which separates a blood chamber 12 from a dialysate chamber 13 within the dialyzer 5 . The arterial and venous lines 3 or 6 of the extracorporeal blood circuit 2 are connected to a blood chamber 12 . A dialysate system 14 is connected to the dialysate chamber 13 , said dialysate system comprising a device 15 for dispensing the dialysate, an input line 16 to the dialyzer 5 and an output line 17 leaving the dialyzer 5 . An ultraf...

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Abstract

The invention relates to blood-treatment equipment with an extra-corporeal circulation comprising an arterial line, a blood pump, a blood-treatment unit and a venous line, wherein the arterial and venous lines can be connected to a blood vessel of a patient. The blood-treatment equipment has an evaluation- and control unit and said evaluation- and control unit is designed to carry out the following steps: (a1) determining the blood re-circulation in a blood vessel of the patient that is connected to the extra-corporeal circulation; and (b) calculating the blood flow in the blood vessel using the blood re-circulation determined according to (a1) and using a value that has been provided or likewise previously determined for the cardiac output of the patient.

Description

technical field [0001] The invention relates to a blood therapeutic apparatus with an extracorporeal blood circuit, which includes an arterial line, a blood pump, a blood treatment unit and a venous line, wherein the arterial line and the venous line can be connected to the patient's blood vessels connected, and wherein the blood therapy device has a blood flow evaluation and control unit for determining the involved blood vessel of the patient. Background technique [0002] A prerequisite for effective extracorporeal blood therapy, such as effective dialysis, is the presence of functioning vascular access. [0003] Therefore, for extracorporeal blood therapy, an arteriovenous fistula is usually created artificially, mostly in the lower arm between the radial artery and the cephalic vein. This short circuit through arteries and veins increases vascular pressure, caused by decreased tissue resistance. A high blood flow in the involved blood vessel is thus achieved. [0004...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/36A61B5/026A61B5/0275A61B5/028A61B5/029
CPCA61M2205/3334A61M1/3658A61M1/3623A61M2205/3382A61M2205/3386A61M2230/30A61M2230/50
Inventor 安德列亚斯·迈尔霍费尔张伟
Owner FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
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