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Blood purifying device, method for obtaining transmembrane pressure difference across blood purification membrane, and method, device and program for determining same

A technology of blood purification and pressure difference, which is applied in the direction of blood filtration, drug equipment, and other medical equipment, and can solve the problem of rising pressure difference between blood purification membranes

Active Publication Date: 2020-04-21
ASAHI KASEI MEDICAL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In addition, when the blood purification process is performed in the above-mentioned blood purification device, the intermembrane pressure difference (TMP (Trans Membrance Pressure)) rise

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  • Blood purifying device, method for obtaining transmembrane pressure difference across blood purification membrane, and method, device and program for determining same
  • Blood purifying device, method for obtaining transmembrane pressure difference across blood purification membrane, and method, device and program for determining same
  • Blood purifying device, method for obtaining transmembrane pressure difference across blood purification membrane, and method, device and program for determining same

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Embodiment Construction

[0079] Next, preferred embodiments of the present invention will be described with reference to the drawings. In addition, the same code|symbol is attached|subjected to the same element, and repeated description is abbreviate|omitted. In addition, positional relationships such as up, down, left, and right are assumed to be based on the positional relationships shown in the drawings unless otherwise specified. In addition, the dimensional ratios of the drawings are not limited to the illustrated ratios. In addition, the following embodiment is an illustration for explaining this invention, and this invention is not limited to this embodiment.

[0080] figure 1 It is an explanatory diagram showing the outline of the configuration of the blood purification device 1 according to the present embodiment. The blood purification device 1 of the present embodiment is, for example, a device for performing hemodiafiltration (HDF).

[0081] The blood purification device 1 includes, f...

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Abstract

The objective of the present invention is to control an amount of leakage of albumin in blood while suppressing leakage of the albumin when blood is being purified using a blood purification membrane.A blood purifying device (1) includes a control means for controlling a transmembrane pressure difference across a blood purification membrane of a blood purifier. The control means obtains the transmembrane pressure difference Pa (Tn) corresponding to a target solute leakage concentration Na (Tn) at each of at least one predetermined time Tn, on the basis of a function Fn: N(Tn)=Fn(P(Tn), Tn) (wherein n is an integer equal to or greater than 1) representing a relationship between a transmembrane pressure difference P (Tn) at at least one predetermined time Tn after the start of blood purification and a solute leakage concentration N (Tn) of a predetermined solute in the blood, and controls the transmembrane pressure difference during blood purification on the basis of the transmembrane pressure difference Pa (Tn).

Description

technical field [0001] This application is based on Japanese Patent Application No. 2017-145863 filed on July 27, 2017 and Japanese Patent Application No. 2018-081667 filed on April 20, 2018, the contents of which are cited here. [0002] The present invention relates to a blood purification device, a method, device and program for obtaining the pressure difference between blood purification membranes, and a method, device and program for determining the pressure difference between blood purification membranes. Background technique [0003] Blood purification treatments such as hemodialysis, leukapheresis, and plasma exchange are performed using a blood purification device. For example, a blood purification device for performing hemodialysis (HDF (HemoDia Filtration)) includes a blood purifier having a blood purification membrane such as a hollow fiber membrane, and a blood purifier for sending the patient's blood to the blood purifier and returning the blood to the patient....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/16A61M1/34
CPCA61M1/16A61M1/3403A61M1/3626A61M1/1601A61M1/3413A61M1/3427A61M1/3621A61M2205/3344A61M2205/50A61M1/00
Inventor 佐佐木康祐正冈胜则田冈正宏
Owner ASAHI KASEI MEDICAL CO LTD