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Blood Purifying Device

A technology for blood purification and blood pump, which is applied in the direction of control device, circulation auxiliary device, blood circulation treatment, etc., can solve the problem of lack of existing technical literature information, etc., and achieve the effect of suppressing the error of the discharge volume and suppressing the error.

Active Publication Date: 2018-02-09
NIKKISO COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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

Method used

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Examples

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Embodiment Construction

[0045] Embodiments of the present invention will be specifically described below with reference to the drawings.

[0046] The blood purification device of the first embodiment is used to perform extracorporeal circulation of the patient's blood for blood purification treatment (for example, hemodialysis treatment), such as figure 1 As shown, it includes: a blood circuit 1, which has an arterial side blood circuit 1a and a venous side blood circuit 1b, and an arterial side puncture needle (not shown in the figure) can be connected to the front end 1aa of the arterial side blood circuit 1a. Shown), at the front end 1ba of this venous side blood circuit 1b, can connect venous side puncture needle (not shown in the figure), this blood circuit 1 can make patient's blood carry out extracorporeal circulation; Dialyzer 2 (blood purification mechanism ), the dialyzer 2 is respectively connected to the base ends of the arterial side blood circuit 1a and the venous side blood circuit 1b,...

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Abstract

The objective of the present invention is to provide a blood purifying device with which it is possible to suppress discharge quantity errors attributable to variations in the suction pressure of a blood pump. This blood purifying device is provided with: a blood circuit 1 capable of causing the blood of a patient to circulate outside the body; a dialyser 2 which is connected to the respective base ends of an arterial blood circuit 1a and a venous blood circuit 1b, and which purifies blood that is circulating outside the body through the blood circuit 1; a squeezed tube C connected to the arterial blood circuit 1a; a blood pump 3 which is capable of causing liquid in the squeezed tube C to flow by squeezing the squeezed tube C in the longitudinal direction while compressing the squeezed tube C in the radial direction; and a pressure detecting means 10 which is attached to a specific part of the arterial blood circuit 1a closer to the distal end 1aa thereof than the position in which the blood pump 3 is disposed, and which is capable of detecting the suction pressure of the blood pump 3; wherein the blood purifying device is additionally provided with a control means 12 capable of controlling the drive speed of the blood pump 3 in accordance with the suction pressure of the blood pump 3 as detected by the pressure detecting means 10.

Description

technical field [0001] The present invention relates to a blood purification device, which comprises: a blood circuit, the blood circuit includes an arterial side blood circuit and a venous side blood circuit to which a puncture needle can be connected at the front end, and the blood circuit can circulate blood of a patient extracorporeally; Blood purification mechanism, the blood purification mechanism is respectively connected with the base ends of the arterial side blood circuit and the venous side blood circuit, through the blood circuit, the blood undergoing extracorporeal circulation is purified; the blood pump, the blood pump compresses the blood in the radial direction through one side The extruded tube connected to the arterial side blood circuit, while squeezing it in the longitudinal direction, can make the liquid inside the extruded tube flow; the pressure detection mechanism, the pressure detection mechanism is installed in the arterial side blood circuit The suct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/36A61M1/10
CPCA61M2205/3334A61M1/3639A61M60/113A61M60/279A61M60/892A61M60/894A61M60/546A61M60/37A61M60/853A61M60/43A61M60/531A61M1/1603A61M1/267A61M1/3638A61M1/3626A61M2205/3317A61M2205/3331A61M2205/3337A61M2205/3365A61M2205/3375
Inventor 德永诚秋田邦彦
Owner NIKKISO COMPANY
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