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blood purification device

A technology of blood purification and blood, applied in the direction of blood circulation treatment, medical equipment, suction equipment, etc., to achieve the effect of good precision

Active Publication Date: 2020-04-21
NIKKISO COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the prior art does not involve an invention known in the literature, and there is no prior art literature information that should be recorded

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Embodiment Construction

[0041] Embodiments of the present invention will be specifically described below with reference to the drawings.

[0042] The blood purification device of this embodiment is composed of a dialysis device for performing dialysis treatment, such as figure 1 As shown, it includes: a blood circuit 1, the blood circuit 1 has an arterial side blood circuit 1a and a venous side blood circuit 1b, at the front end of the arterial side blood circuit 1a, an arterial side puncture needle a can be connected, and in the vein side The front end of side blood circuit 1b can be connected with venous side puncture needle b, and this blood circuit can make patient's blood carry out extracorporeal circulation; Dialyzer 2 (blood purification mechanism), this dialyzer 2 is connected with arterial side blood circuit 1a and venous side Between the blood circuit 1b, the blood flowing through the blood circuit 1 is purified; the blood pump 3 is arranged in the arterial side blood circuit 1a; the first ...

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Abstract

An object of the present invention is to provide a blood purification device capable of reliably avoiding extracorporeal circulation of blood of a patient in a blood circuit in a state where a puncture needle for puncturing a blood vessel is poorly punctured. The invention relates to a blood purification device, which comprises: a blood circuit (1), the blood circuit can make the blood of a patient undergo extracorporeal circulation; a dialyzer (2), the dialyzer pair in the blood circuit (1) The flowing blood is purified, and the blood purification device includes a pressure change applying mechanism, which can control the front end of the blood circuit (1) in the state where the arterial side puncture needle (a) and the venous side puncture needle (b) are not connected. Positive pressure or negative pressure is applied; pressure change detection mechanism, which can detect the front end of the blood circuit (1) to which positive pressure or negative pressure is applied by the pressure change application mechanism and the arterial side puncture needle punctured in the patient (a) The pressure change at the front end of the blood circuit (1) when it is connected to the venous side puncture needle (b); the judging mechanism (11), which can judge according to the pressure change detected by the pressure change detecting mechanism Whether the puncture status of the arterial side puncture needle (a) and vein side puncture needle (b) is good.

Description

technical field [0001] The present invention relates to a blood purification device, which can perform blood purification by passing through a blood purification mechanism while puncturing a puncture needle into a patient's puncture blood vessel to allow the patient's blood to undergo extracorporeal circulation in the blood circuit. treat. Background technique [0002] Generally, in blood purification treatment, such as dialysis treatment, a blood circuit composed of flexible tubes is used to circulate the patient's blood extracorporeally. The blood circuit includes an arterial side blood circuit and a venous side blood circuit. At the front end of the arterial side blood circuit, an arterial side puncture needle for taking blood from the patient is installed, and at the front end of the venous side blood circuit, a needle for returning blood to the patient is installed. The puncture needle on the venous side is connected to a dialyzer between the arterial side blood circui...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M1/36
CPCA61M1/3627A61M2205/07A61M2205/3331A61M2205/3379A61M1/3661A61M1/3656A61M1/3624A61M1/3643A61M2205/3375A61M1/3638A61M39/281A61M2205/3344
Inventor 长谷川晋也秋田邦彦丰田将弘
Owner NIKKISO COMPANY
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