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Safety apparatus for extracorporeal blood treatment

An extracorporeal blood and blood technology, applied in the fields of blood circulation treatment, mechanical equipment, drug devices, etc., can solve the problems of high patient safety, health risks, and life-threatening problems, and achieve the effect of improving safety and low risk.

Active Publication Date: 2015-03-04
FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0008] Disturbances in the acid-base balance and fluctuations in the pH value of the blood pose a high safety and health risk for patients receiving dialysis and can lead to life-threatening conditions

Method used

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  • Safety apparatus for extracorporeal blood treatment
  • Safety apparatus for extracorporeal blood treatment
  • Safety apparatus for extracorporeal blood treatment

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Embodiment Construction

[0047] figure 1A schematic diagram is shown of a blood purification device 100 according to the present invention, which does not include a citrate anticoagulation device. Here, as an example, anticoagulation is performed with heparin. The blood of the patient 101 reaches the extracorporeal blood flow path 102 through the arterial channel 101a, and the blood flow path includes a blood inlet tube 103 (arterial branch), a blood outlet tube 104 (venous branch), and a dialysis unit 105 ( indicated by a dotted line box), and flow back into the body of the patient 101 through the venous channel 101b. The dialysis unit 105 basically consists of a dialysis filter 105 a (also referred to as a dialysis machine 105 a ), a blood pump 109 , a bubble trap 110 with a bubble detector and a controller 106 . Depending on the blood purification system and the desired treatment, additional blood purification elements 105b (eg hemofilters, hemofilters with closed plasma flow paths or adsorber fl...

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Abstract

The device (100) has control circuits (124,124a) to measure blood buffer parameter of measuring unit selected from group consisting of bicarbonate concentration and carbon dioxide partial pressure. The measured value of blood buffer parameter signal is supplied to control device (125) to regulate actual value of blood buffer parameter to preset value range. The pH measuring unit (150a) is provided in upstream of dialysis unit (105) to supply pH value signal to alarm unit (130) to trigger alarm signal exceeding or falling below specific pH range.

Description

technical field [0001] The invention relates to a blood purification device having an extracorporeal blood flow path with a blood inlet tube for withdrawing blood from a patient to a dialysis unit and a blood outlet tube from the dialysis unit for returning blood to the patient, The dialysis unit includes an inlet tube for dialysis solution and a dialysate outlet tube. Background technique [0002] Mammalian organisms function perfectly only when the same physical and chemical conditions are maintained as much as possible. It is especially important to maintain acid-base balance, which is stabilized within narrow physiological ranges by naturally occurring mechanisms in the body. The buffer system consisting of carbonic acid and bicarbonate forms the majority of the blood's total buffering capacity and plays a key role in balancing blood pH fluctuations. Acidic metabolites that are continuously formed in the body are usually neutralized by being excreted by the kidneys or ...

Claims

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Application Information

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IPC IPC(8): A61M1/16A61M1/36
CPCA61M1/3621A61M1/3612A61M1/3672A61M2230/208A61M2230/202A61M2205/3324A61M1/361A61M1/16A61M1/1609A61M1/3675F04C2270/0421A61M2205/18B01D61/30B01D61/32A61M1/1603
Inventor M·布兰德尔迪特尔·法尔肯哈根简·哈特曼
Owner FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
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