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Blood purification device and control method therefor

A technology of blood purification and control method, which is applied in the fields of blood circulation treatment, blood filtration, and suction equipment, etc., can solve the problems of troublesome maintenance and management, high patient invasiveness, and low blood flow, etc., and achieve the effect of shortening the implementation time.

Inactive Publication Date: 2013-05-22
ASAHI KASEI MEDICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the work of inserting the catheter is limited to doctors with specialized skills, and the maintenance and management of the catheter, such as fixing the catheter, cleaning the insertion site, and heparin lock (Japanese: ヘパリンロック), are troublesome, and there is a problem that it is highly invasive to the patient. The problem
[0008] On the other hand, direct puncture with a needle is simple and manageable, reduces the risk of infection and invasiveness to the patient, but conversely has the disadvantage of obtaining less blood flow compared to a catheter

Method used

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  • Blood purification device and control method therefor
  • Blood purification device and control method therefor
  • Blood purification device and control method therefor

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Experimental program
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no. 1 Embodiment approach

[0055] Such as figure 1 As shown, the blood purification device 1A is used for pure plasma exchange therapy (PE), for example. The blood purification device 1A has: a blood circuit 20, which is used to transport the blood drawn from the specimen 100 to the plasma separator 5 through the blood removal side circuit 2, and to pass the blood after passing through the plasma separator 5 through the blood return side circuit 12 returns to the examination object 1A; blood pump 3, which is used to transport the blood in the blood circuit 20; circulation circuit 14, which connects the blood return side circuit 12 and the blood removal side circuit 2; circulation pump 15, which is used to make the The blood in the circulation circuit 14 is circulated to the deblood side circuit 4; the plasma circuit 6A, which is used to transport the plasma components separated by the plasma separator 5; the plasma pump 7, which is used to transport the plasma components in the plasma circuit 6A; A li...

no. 2 Embodiment approach

[0066] Next, refer to figure 2 , the blood purification device of the second embodiment will be described. In addition, since the blood purification device 1B of the second embodiment has the same components and structures as those of the blood purification device 1A of the first embodiment, the description will focus on the differences, and the same drawings will refer to the components and structures that are substantially the same. mark, and its detailed description is omitted.

[0067] Such as figure 2 As shown, the blood purification device 1B is used for double filtration plasma exchange therapy (DFPP). The blood purification device 1B includes: a blood circuit 20 having a blood removal side circuit 2 and a blood return side circuit 12 , a plasma separator 5 , a blood pump 3 , a circulation circuit 14 and a circulation pump 15 .

[0068] Furthermore, the blood purification apparatus 1B also has a plasma circuit 6B for transporting the plasma components separated by ...

no. 3 Embodiment approach

[0085] Next, refer to image 3 , the blood purification device of the third embodiment will be described. In addition, since the blood purification device 1C of the third embodiment has the same components and structures as the blood purification device 1A of the first embodiment or the blood purification device 1B of the second embodiment, the description will focus on the differences, and the essential points will be described. Components and structures that are the same as above are assigned the same reference numerals, and detailed description thereof will be omitted.

[0086] Such as image 3 As shown, the blood purification device 1C is used for plasma adsorption therapy (PA). The blood purification device 1C includes: a blood circuit 20 having a blood removal side circuit 2 and a blood return side circuit 12 , a plasma separator 5 , a blood pump 3 , a circulation circuit 14 and a circulation pump 15 .

[0087]Furthermore, the blood purification apparatus 1C further i...

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PUM

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Abstract

A blood purification device 1A includes: a blood circuit 20 including a blood removal-side circuit 2 that carries blood taken from a subject 100 to a plasma separator 5, and a blood reinfusion-side circuit 12 that returns the blood passing through the plasma separator 5 to the subject 100; a circulating circuit 14 that connects the blood reinfusion-side circuit 12 to the blood removal-side circuit 2; a plasma circuit 6A that carries plasma components separated by the plasma separator 5; and a control unit 16 that controls blood flow so that a portion of the blood flowing in the blood reinfusion-side circuit 12 is circulated to the circulating circuit 14 to be flown to the blood removal-side circuit 2 when the blood in the blood circuit 20 is being pumped and a portion of the plasma components separated by the plasma separator 5 is being pumped to the plasma circuit 6A.

Description

technical field [0001] The invention relates to a blood purification device and a control method of the blood purification device. Background technique [0002] Currently, blood purification therapy is widely used in the treatment of difficult diseases such as autoimmune diseases and metabolic diseases. Blood purification therapy is roughly divided into plasma exchange therapy and direct hemoperfusion (direct hemoperfusion; DHP). Plasma exchange therapy is a method in which plasma components are separated from blood drawn outside the body, and humoral factors (immune-related substances such as antibodies and pro-inflammatory cytokines, metabolites such as LDL cholesterol, etc. Toxic substances), viruses, etc., so as to seek treatment methods to improve the condition. [0003] Direct hemoperfusion (DHP) (Patent Document 1) is difficult to selectively remove specific pathogenic substances in plasma because it directly processes blood. Toxic drugs and other substances for th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/36A61M1/34
CPCA61M2001/3482A61M1/3496A61M1/3472A61M2001/3437A61M1/3437A61M1/3482A61M1/3603A61M1/3486
Inventor 鲶田健一朗小林英辅
Owner ASAHI KASEI MEDICAL CO LTD