Extracorporeal blood circulating device, closed blood storing tank and extracorporeal blood circulating method

A closed type, blood storage technology, applied in the direction of blood circulation treatment, etc., can solve the problem of difficult to directly control the blood storage volume, etc., and achieve the effect of simple composition

Inactive Publication Date: 2007-01-03
JMS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In contrast, in the case of an open blood storage tank, the blood storage volume can be changed at one time by changing the rotation speed of the blood pump, but it is difficult to directly control the blood storage volume.
The reason is that in fact, the blood storage capacity is also affected by other conditions such as the

Method used

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  • Extracorporeal blood circulating device, closed blood storing tank and extracorporeal blood circulating method
  • Extracorporeal blood circulating device, closed blood storing tank and extracorporeal blood circulating method
  • Extracorporeal blood circulating device, closed blood storing tank and extracorporeal blood circulating method

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[0044]In the extracorporeal blood circulation device of the present invention, the pipe member can be constituted by a flexible tube. Alternatively, the above-mentioned pipe member may have a configuration in which a flow path adjustment portion for changing the cross-sectional area of ​​the flow path is provided in the flow path.

[0045] It is preferable to include a measuring unit for measuring the amount of the adjustment liquid stored in the adjustment liquid tank.

[0046] In addition, it is preferable that the enclosed blood reservoir is provided with a first blockage prevention flow path forming a space recessed outward on the inner wall surface of the housing facing the portion of the blood storage chamber, and is provided in communication with the first blockage prevention flow path. The above-mentioned inlet and outlet.

[0047] In addition, it is preferable to have a fine adjustment port for injecting and discharging the adjustment liquid between the adjustment port and t

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Abstract

A device comprising a closed blood storing tank (20) in which a blood storing chamber (3) and a capacity regulating chamber (4) formed by partitioning a closed space formed by a housing (1) are disposed adjacent to each other, a regulating liquid tank (21) connected to the capacity regulating chamber, for storing a regulating liquid (21a), and a blood pump (22) connected with the blood storing chamber. In the housing, a blood in-flow port (5) and a blood out-flow port (6) are provided to communicate with the blood storing chamber, and a regulating port (7) for charging or discharging a regulating liquid is also provided to communicate with the capacity regulating chamber. The blood pump is connected via the out-flow port, and the regulating liquid tank is connected via the regulating port. The blood storing chamber and the capacity regulating chamber are formed by partitioning the closed space by a flexible partitioning member (2), and the regulating liquid tank and the regulation port are connected together by a pipeline member (23) having a flow rate regulating structure. A stored blood amount can be controlled to an optimum one during a process from prior to the start to the end of an extracorporeal blood circulation, enabling an easy regulation.

Description

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Claims

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Application Information

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Owner JMS CO LTD
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