US 12,133,942 B2
Manual breast pump
Yukifumi Ochiai, Tokyo (JP); Katsutoshi Takahashi, Tokyo (JP); and Tatsuyuki Ishikawa, Tokyo (JP)
Assigned to PIGEON CORPORATION, Tokyo (JP)
Appl. No. 17/055,232
Filed by PIGEON CORPORATION, Tokyo (JP)
PCT Filed May 13, 2019, PCT No. PCT/JP2019/018927
§ 371(c)(1), (2) Date Nov. 13, 2020,
PCT Pub. No. WO2019/221057, PCT Pub. Date Nov. 21, 2019.
Claims priority of application No. 2018-094024 (JP), filed on May 15, 2018.
Prior Publication US 2021/0213184 A1, Jul. 15, 2021
Int. Cl. A61M 1/06 (2006.01)
CPC A61M 1/06 (2013.01) [A61M 1/062 (2014.02); A61M 2210/1007 (2013.01)] 2 Claims
OG exemplary drawing
 
1. A manual breast pump, comprising:
a main body having a passage through which extracted breast milk passes;
a hood connected to the main body and configured to be placed onto a breast;
a diaphragm provided to the main body and generating a negative pressure in the passage;
a holding member attached to the main body and provided to be rotatable with respect to the main body; and
a handle for being operated thereby deforming the diaphragm, the handle being held by the holding member, wherein
when the holding member rotates with respect to the main body, the handle rotates with respect to the main body together with the holding member,
the holding member has:
an attachment portion fitted to the main body so as to be rotatable with respect to the main body;
an extension portion extending from the attachment portion and supporting the handle in a reciprocable manner,
a diaphragm mounting portion above which the diaphragm is mounted; and
a receiving portion provided in a position downwardly away from the diaphragm mounting portion,
the attachment portion is installed in a sandwiched position between the diaphragm mounting portion and the receiving portion,
the main body has a guide portion provided between the diaphragm mounting portion and the receiving portion,
the attachment portion has a rotation stabilizing portion installed in a sandwiched position between the diaphragm mounting portion and the guide portion, and
the rotation stabilizing portion is a guide projection that protrudes toward an internal space of the attachment portion.