US 12,458,736 B2
Electric breast pump, method of controlling electric breast pump, and control program for electric breast pump
Yuichiro Tanaka, Tokyo (JP); Satoru Saito, Tokyo (JP); and Sumiko Kuroishi, Tokyo (JP)
Assigned to PIGEON CORPORATION, Tokyo (JP)
Appl. No. 16/972,749
Filed by PIGEON CORPORATION, Tokyo (JP)
PCT Filed Jun. 7, 2019, PCT No. PCT/JP2019/022785
§ 371(c)(1), (2) Date Dec. 7, 2020,
PCT Pub. No. WO2019/235626, PCT Pub. Date Dec. 12, 2019.
Claims priority of application No. 2018-110743 (JP), filed on Jun. 8, 2018.
Prior Publication US 2021/0260261 A1, Aug. 26, 2021
Int. Cl. A61M 1/06 (2006.01); A61M 1/00 (2006.01)
CPC A61M 1/0693 (2021.05) [A61M 1/06 (2013.01); A61M 1/0697 (2021.05); A61M 1/06935 (2021.05); A61M 1/74 (2021.05); A61M 1/75 (2021.05); A61M 1/82 (2021.05); A61M 2205/33 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method of controlling an electric breast pump including
a breast placement part configured to be placed on a breast and a nipple of a subject is placed, and
a suction-pressure generating unit configured to generate a suction pressure in the breast placement part,
the method comprising:
generating by the suction-pressure generating unit a suction cycle including a plurality of suction operations, wherein the suction operations includes a plurality of basic suction operations having a basic suction pressure, a plurality of increased suction operations having an increased suction pressure that is greater than the basic suction pressure, and an extended suction operation having an extended suction pressure that is the same as the increased suction pressure of the increased suction operation and having 1.7 to 1.9 times longer suction time than that of the basic suction operations and the increased suction operations, and
a suction pressure difference that is determined between a maximum suction pressure of the basic suction pressure and a maximum suction pressure of the increased suction pressure is ranged from 2.5 kPa to 3.5 kPa, wherein
in the suction cycle, the basic suction operations and the increased suction operations are repeated multiple times consecutively at an equal suction pressure wherein the basic suction operations all have the same amount of the basic suction pressure, and the increased suction operations all have the same amount of the increased suction pressure,
the basic suction operations are executed first, the increased suction operations are executed next, and the extended suction operation is executed at the same suction pressure as the suction pressure of the increased suction operation last such that there is no suction operation having a suction pressure that is smaller than that of a previous suction operation, and the suction cycle ends when the extended suction operation ends, and
at the start of the extended suction operations, an increase speed of the suction pressure of the extended suction operation is set high, then is gradually reduced to low as the suction pressure approaches the maximum suction pressure, and then the suction pressure is reduced after the suction pressure reach the maximum suction pressure.