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blood purification device

A blood purification and blood technology, applied in blood circulation treatment, blood filtration, other medical devices, etc., can solve problems such as calcium concentration reduction

Active Publication Date: 2022-04-29
ASAHI KASEI MEDICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, when citric acid is used as an anticoagulant, ionized calcium in blood decreases due to the action of citric acid, and Ci-Ca complexes (a type of calcium complex) increase, and most of them are The blood purification membrane of the blood purifier is removed, so the calcium concentration in the blood returned to the patient after passing through the blood purifier is significantly reduced

Method used

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Embodiment Construction

[0031] 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.

[0032] 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 blood filtration (HemoFiltration).

[0033] The blood purification device 1 i...

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Abstract

The blood purification device has a blood circuit, a waste liquid circuit, a citric acid solution supply unit, and a calcium solution supply unit. The blood purification apparatus is configured to calculate the total calcium flow rate of the waste liquid based on the total calcium concentration of the waste liquid in the waste liquid circuit and the flow rate of the waste liquid in the waste liquid circuit when the citric acid solution supply unit supplies the citric acid solution, and calculate the total calcium flow rate of the waste liquid according to The total calcium flow rate of the waste liquid determines the supply flow rate of the calcium solution in the calcium solution supply unit.

Description

technical field [0001] This application is based on Japanese Patent Application No. 2017-039750 filed on March 2, 2017, and the content of the description is cited here. [0002] The invention relates to a blood purification device. Background technique [0003] Blood purification treatment performed in dialysis treatment, plasma exchange treatment, and the like is generally performed using a blood purification device. This blood purification device includes a blood purifier and a blood circuit for sending blood taken from a patient to the blood purifier and returning the blood purified by the blood purifier to the patient. [0004] In order to prevent the patient's blood from coagulating in the blood circuit, conventionally, an anticoagulant is supplied to the blood circuit upstream of the blood purifier. [0005] Conventionally, heparin has been used as an anticoagulant, but in recent years, it has been proposed to use citric acid, which has less burden on the blood puri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M1/36A61M1/34
CPCA61M1/1609A61M1/342A61M1/3434A61M1/3437A61M1/3672A61M2205/3327A61M2205/50A61M2230/20
Inventor 海本隆志费尔南多·丰塞卡·圣米格尔贾维尔·梅纳尔·莫里纳海伦娜·巴拉萨·冈萨雷斯
Owner ASAHI KASEI MEDICAL CO LTD
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