US 12,268,804 B2
Blood circulation system
Yoshinari Niimi, Tokyo (JP); and Masahiro Kamiya, Tokyo (JP)
Assigned to SENKO MEDICAL INSTRUMENT MFG. CO., LTD., Tokyo (JP)
Filed by SENKO MEDICAL INSTRUMENT MFG. CO., LTD., Tokyo (JP)
Filed on Oct. 11, 2021, as Appl. No. 17/498,422.
Application 17/498,422 is a continuation of application No. 16/006,277, filed on Jun. 12, 2018, granted, now 11,141,519.
Application 16/006,277 is a continuation of application No. 15/502,949, granted, now 11,040,132, issued on Jun. 22, 2021, previously published as PCT/JP2015/073428, filed on Aug. 20, 2015.
Claims priority of application No. 2014-167559 (JP), filed on Aug. 20, 2014; and application No. 2015-053600 (JP), filed on Mar. 17, 2015.
Prior Publication US 2022/0023523 A1, Jan. 27, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. 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)
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)] 4 Claims
OG exemplary drawing
 
1. A blood circulation system that can be connected to a human body, the system comprising:
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;
a blood removal rate measurement means that is 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.