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blood purification device

A technology of blood purification and blood, which is applied in medicine equipment, other medical equipment, suction equipment, etc.

Active Publication Date: 2016-01-13
NIKKISO COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, since there is usually no pressure detection component on the upstream side of the blood pump in the blood circuit, so that it is not possible to directly detect the blockage of the arterial blood circuit side in the arterial side blood return step, a method that can achieve blood return has been proposed. A blood purification device ( For example, see Patent Document 3)

Method used

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Embodiment 1

[0059] The blood purification device of embodiment 1 is made up of the dialysis device that is used for dialysis treatment, as Figures 1 to 3 As shown, it is mainly composed of the following: a blood circuit composed of an arterial side blood circuit 1 and a venous side blood circuit 2; a device installed between the arterial side blood circuit 1 and the venous side blood circuit 2 to purify the blood circulating in the blood circuit Dialyzer 3 (blood purification component); blood pump 4; arterial side air trap chamber 5 and venous side air trap chamber 6 respectively arranged in arterial side blood circuit 1 and venous side blood circuit 2; capable of supplying dialysate to the dialyzer The dialysis device body B of 3; the physiological saline supply line 8 (substitution fluid supply line); the storage assembly 9 for accommodating the physiological saline solution as the replacement fluid; the venous pressure sensor 21 as the hydraulic pressure detection assembly; Valve V1 ...

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Abstract

The present invention discloses a blood purification device that can accurately detect the blockage of the arterial side blood circuit in the arterial side blood reinfusion step; wherein the control unit 19 can perform multiple arterial side blood reinfusion steps, and at the same time, the The sensor 21 detects the pressure, and detects the blockage of the flow path in the arterial side blood circuit 1 according to the pressure change at a predetermined time point corresponding to each arterial side blood reinfusion step, wherein the arterial side blood reinfusion step includes: using a solenoid valve V2 closes the flow path and drives the blood pump 4 in the forward direction, and carries out the pressure accumulation step between the setting position of the blood pump 4 and the setting position of the solenoid valve V2; maintain the flow path closed by the solenoid valve V2, and drive the blood pump reversely at the same time 4. Perform the pressure release step of blood reinfusion from the front end of the arterial side blood circuit 2 .

Description

technical field [0001] The present invention relates to a blood purification device for performing extracorporeal circulation and purifying blood of a patient undergoing dialysis treatment using a dialyzer. Background technique [0002] The dialysis device as a blood purification device is mainly composed of the following components: a blood circuit composed of an arterial side blood circuit with an arterial side puncture needle installed at the front end, and a venous side blood circuit with a venous side puncture needle installed at the front end; Between the blood circuit on the arterial side and the blood circuit on the venous side, the dialyzer used to purify the blood circulating in the blood circuit; the blood pump installed on the blood circuit on the arterial side; an arterial-side air trap chamber and a venous-side air trap chamber; and a dialysis device body capable of supplying dialysate to a dialyzer. [0003] In addition, between the arterial side puncture nee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M1/14
CPCA61M1/3621A61M1/3639A61M2205/3331
Inventor 古桥智洋竹内聪二村宽
Owner NIKKISO COMPANY
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