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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.

Patent No.:

US 12268804 B1

PDFFull Text
Date of Patent:
Apr. 08, 2025

Filed:

Oct. 11, 2021

Blood circulation system

Applicant:

Senko Medical Instrument Mfg. Co., Ltd., Tokyo, JP;

Inventors:

Yoshinari Niimi, Tokyo, JP;

Masahiro Kamiya, Tokyo, JP;

Assignee:

SENKO MEDICAL INSTRUMENT MFG. CO., LTD., Tokyo, JP;

Attorney:

PROCOPIO, CORY, HARGREAVES & SAVITCH LLP

Primary Examiner:

Leslie R Deak

Int. Cl.
CPC ...
A61M 1/36 (2006.01); A61M 1/16 (2006.01); A61M 60/104 (2021.01); A61M 60/113 (2021.01); A61M 60/232 (2021.01); A61M 60/279 (2021.01); A61M 60/38 (2021.01); A61M 60/411 (2021.01); A61M 60/427 (2021.01); A61M 60/523 (2021.01); A61M 60/546 (2021.01);
U.S. Cl.
CPC ...
A61M 1/3666 (2013.01); A61M 1/1603 (2014.02); A61M 1/1629 (2014.02); A61M 1/1698 (2013.01); A61M 1/3623 (2022.05); A61M 1/3624 (2013.01); A61M 1/3639 (2013.01); A61M 60/104 (2021.01); A61M 60/113 (2021.01); A61M 60/232 (2021.01); A61M 60/279 (2021.01); A61M 60/38 (2021.01); A61M 60/411 (2021.01); A61M 60/427 (2021.01); A61M 60/523 (2021.01); A61M 60/546 (2021.01); A61M 2205/18 (2013.01); A61M 2205/3303 (2013.01); A61M 2205/3306 (2013.01); A61M 2205/3334 (2013.01); A61M 2205/3365 (2013.01); A61M 2205/3375 (2013.01); A61M 2205/50 (2013.01); A61M 2205/502 (2013.01);
Abstract

A blood circulation system that can be connected to a human body is provided. The system may include a roller pump, a blood removal line through which blood removed from the human body flows to the roller pump, a blood transfer line that transfers blood, which is sent from the roller pump, to the human body, means for measuring a blood removal rate provided in the blood removal line to measure a blood removal rate parameter of blood flowing through the blood removal line and a control unit, wherein the control unit is programmed to control a blood transfer rate of the roller pump by controlling a rotational speed of the roller pump with a control signal, such that a transfer rate of blood flowing through the blood transfer line is synchronized with a removal rate calculated from the blood removal rate parameter.

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