The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 30, 2018

Filed:

Apr. 26, 2017
Applicant:

Terumo Kabushiki Kaisha, Tokyo, JP;

Inventor:

Shigeyuki Kimura, Shizuoka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 1/36 (2006.01); A61M 1/38 (2006.01); A61M 1/02 (2006.01); B04B 11/02 (2006.01); B04B 5/04 (2006.01);
U.S. Cl.
CPC ...
A61M 1/3696 (2014.02); A61M 1/0218 (2014.02); A61M 1/382 (2013.01); B04B 5/0442 (2013.01); B04B 11/02 (2013.01); A61M 2202/0427 (2013.01);
Abstract

A blood component separation device includes a centrifuge bowl for separating a blood component from blood, a plasma bag for storing a plasma component, a platelet intermediate bag for storing high-concentration platelet liquid having high-concentration of platelets, and a temporary storage bag (also used as a buffy coat bag) for storing low-concentration platelet liquid having low-concentration of platelets. The blood component separation device performs control, from the second cycle onward, to mix the low-concentration platelet liquid stored in the temporary storage bag in the immediately preceding cycle with whole blood to supply the mixed liquid to the centrifuge bowl. An amount of high-concentration platelet liquid to be collected in the platelet intermediate bag in the first cycle is set to be smallest among all cycles, and an amount of high-concentration platelet liquid to be collected in a last cycle is set to be greatest among all the cycles.


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