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Thrombocyte sampling device

A platelet and plasma technology, applied in blood sampling devices, blood transfusion devices, blood circulation processing, etc.

Inactive Publication Date: 2002-07-03
TERUMO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, there is the disadvantage of overcompressing the separated blood components (especially red blood cells) in the centrifugal separator.

Method used

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Experimental program
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Embodiment Construction

[0054] The preferred embodiments of the platelet collection device of the present invention will be described in detail below with reference to the accompanying drawings.

[0055] Hereby refer to Figure 1 to Figure 4 To briefly describe the platelet collection device 1 of the present invention, the platelet collection device 1 includes a rotor 141 formed in the blood storage space and can rotate freely, and an inflow port 143 and an outflow port 144 connected to the oil storage space. Rotate the centrifuge 20 that centrifuges the blood introduced from the inflow port 143 in the blood storage space, supply the first channel 21 for the flow of blood flowing into the centrifuge 20; Passage 22; take the plasma that is flowed out by the centrifugal separator 20, and connect the plasma collection bag 25 of the first passage 21 and the second passage 22 in a manner that the plasma that is taken can be returned to the centrifugal separator 20; The way the platelets flow into the cen...

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Abstract

A platelet collecting apparatus 1 comprises a centrifugal separator 20 possessing a rotatable rotor 142 ; a first line 21 for allowing the flow of the blood entering the centrifugal separator 20; a second line 22 for allowing the flow of the blood emanating from the centrifugal separator, a plasma collecting bag 25 connected to the first line 21 and the second line 22 so as to collect the plasma emanating from the centrifugal separator 20 and return the collected plasma to the centrifugal separator 20, a platelet collecting bag 26 connected to the second line 22 so as to collect the platelets emanating from the centrifugal separator 20, a blood delivering pump 11 disposed in the first line 21, and a controller 13 for controlling the operation of the rotor of the centrifugal separator 20 and the operation of the blood delivering pump 11. The controller 13 is endowedwith a function of varying the rotational frequency of the rotor 142 during the course of blood collection in conformity with the amount of the blood entered into the centrifugal separator 20 via the first line 21. The invention provides a platelet collecting device with minimal inclusion of leucocyte and having high sampling efficiency of platelet.

Description

Technical field [0001] The present invention relates to a platelet collection device for collecting platelets from blood. Background technique [0002] Recently, blood components are collected at the time of blood collection in order to effectively use blood and reduce the burden on blood donors. The so-called component blood collection is to separate the collected blood into various blood components with a centrifugal separator, etc., and only collect the blood components required for blood transfusion, and return the other blood components to the blood donor. In the case of blood collection for the production of platelet preparations, the blood collected from the blood donor is introduced into the platelet collection circuit, and the blood components are separated into plasma, white blood cells, and platelets by using a centrifugal separator called a centrifugal bowl installed in the platelet collection circuit. and red blood cells. Among these blood components, the plat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/02A61B5/15A61M1/30A61M1/36B04B1/14
CPCA61M1/308A61M2001/304A61M2202/0427A61M1/303A61M2205/3382A61M2001/308A61M2001/3696A61M1/3693A61M2202/0415A61M2001/303A61M1/3696A61M1/304A61M2205/331A61M2205/50A61M1/36226A61M1/362265A61M1/36222A61M1/362266A61M1/36225A61M2202/0014A61B5/1405
Inventor 齐藤升宇田川刚志堀内邦雄
Owner TERUMO KK
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