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Blood purification device

By dynamically updating the venous pressure alarm value and adjusting the alarm range in the blood purification device, the problems of false alarms and difficulty in detecting abnormalities in the existing technology are solved, and accurate abnormal detection in blood purification treatment is achieved.

Active Publication Date: 2007-05-23
NIKKISO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, such prior art is not a technology related to a documented invention, so there is no prior art document information that can be recorded

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Embodiment Construction

[0025] Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.

[0026] The blood purification device according to the first embodiment is used for purifying blood of a patient while undergoing extracorporeal circulation, and is applied to a dialysis device used for dialysis treatment. As shown in FIG. 1 , such a dialysis device is mainly composed of a blood circuit 1 to which a dialyzer 2 as a blood purification mechanism is connected, and a dialysis device main body 6 that removes water while supplying dialysate to the dialyzer 2 . As shown in the figure, the blood circuit 1 is mainly composed of an arterial blood circuit 1a and a venous blood circuit 1b composed of flexible tubes, and a dialyzer 2 is connected between the arterial blood circuit 1a and the venous blood circuit 1b.

[0027] In the arterial side blood circuit 1a, an arterial side puncture needle a is connected to the front end thereof, and a meridian typ...

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Abstract

A blood purification device allows controlling a false alarm and allows detecting accurately an abnormality in a patient who is undergoing a blood purification treatment or in the device which is running. The hemodialysis equipment includes blood circuit 1 made of an arterial blood circuit 1a having an arterial needle a at its end and a venous blood circuit 1b having a venous needle b at its end; a blood pump 3; a dialyzer 2 purifying the blood flowing in blood circuit 1; a venous blood pressure sensor 5 which can detect pressure of a patient's blood flowing in the venous blood circuit 1b; a venous blood pressure monitoring means 12 for comparing a base value of the pressure measured by the venous blood pressure sensor 5 or pressure predicted to be measured with a predetermined alarm-threshold.

Description

technical field [0001] The present invention relates to a blood purification device for purifying a patient's blood while circulating it extracorporeally. Background technique [0002] Generally, in blood purification therapy such as dialysis treatment, a blood circuit composed of a flexible tube is used to circulate blood of a patient extracorporeally. This type of blood circuit is mainly composed of an arterial side blood circuit at the front end of an arterial side puncture needle that extracts blood from the patient, and a venous side blood circuit at the front end of a venous side puncture needle that returns blood to the patient. A dialyzer is inserted between the circuit and the venous blood circuit to purify extracorporeal blood. [0003] Such a dialyzer is constructed in such a way that a plurality of hollow fibers are arranged inside, blood passes through the inside of each hollow fiber, and at the same time, the outside (between the outer peripheral surface of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/14A61B5/02
CPCA61B5/02152A61M2205/18A61M1/3639A61B5/746A61M2205/50A61M1/14A61M1/36
Inventor 大石贵行高桑保志
Owner NIKKISO CO LTD
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