公开(公告)号：US11123462B2

公开(公告)日：2021-09-21

申请号：US16300320

申请日：2017-05-11

申请人： PIGEON CORPORATION

发明人： Yukifumi Ochiai

IPC分类号： A61M1/06 ,  A61M1/00

摘要： A manual breast pump includes: a body having a communicating part that communicates with space surrounded by a hood placed on a breast; a diaphragm that deforms to generate a negative pressure in the communicating part; and a handle for operation that approaches and separates from the body, wherein a colliding part, against which at least the handle and the body collide before directly contacting each other, is provided in at least a region of any of the handle, the body, and the diaphragm, the colliding part is integrally made of a same material as a material of a region in which the colliding part is arranged, and has a damper structure that absorbs an impulsive force or reduces propagation of the impulsive force and/or a cover structure in which the colliding part is covered via a gap so as not to be exposed to an outside.

公开(公告)号：US20220339332A1

公开(公告)日：2022-10-27

申请号：US17760752

申请日：2019-09-20

申请人： Pigeon Corporation

发明人： Yukifumi Ochiai

IPC分类号： A61M1/06

摘要： A breast pump includes a main body, a diaphragm, a handle, a connecting portion, and a volume reduction portion. The main body includes a hood attaching portion attached to the hood, a bottle attaching portion attached to a bottle for collecting milk, and an internal passage extending between the hood attaching portion and the bottle attaching portion. The diaphragm is attached to the internal passage and is configured to generate negative pressure in the internal passage. The connecting portion connects the diaphragm and the handle and is configured to displace the diaphragm in a lifting direction in accordance with movement of the handle. The volume reduction portion is inserted into the internal passage and is configured to reduce a volume of the internal passage.

公开(公告)号：US20220339331A1

公开(公告)日：2022-10-27

申请号：US17775813

申请日：2019-11-14

申请人： Pigeon Corporation

发明人： Yukifumi Ochiai ,  Yoshihiro Shimomura ,  Yuina Ando ,  Hyunjin Im ,  Hayato Ueno ,  Tsukasa Hattori

IPC分类号： A61M1/06

摘要： A breast pump includes a body including a hood attachment portion, a bottle attachment portion, and an inner passage extending between the hood attachment portion and the bottle attachment portion; a diaphragm configured to generate negative pressure in the inner passage; a handle manually operated to move back and forth; and a link mechanism configured to support the handle in a manner movable back and forth relative to the body. The handle is configured to change pressure of the inner passage from a normal state to a negative state by displacing the diaphragm in a lifting direction. The link mechanism is configured to apply an operation force to the handle that becomes maximal during handle movement when the handle is moved in an operation direction that changes the pressure from the normal state to the negative state.

公开(公告)号：US20220339330A1

公开(公告)日：2022-10-27

申请号：US17760755

申请日：2019-09-20

申请人： Pigeon Corporation

发明人： Yukifumi Ochiai ,  Yoshihiro Shimomura ,  Yuina Ando ,  Hyunjin Im ,  Hayato Ueno ,  Tsukasa Hattori

IPC分类号： A61M1/06

摘要： A breast pump includes a main body and a handle. The main body includes an internal passage, a negative pressure generation mechanism configured to generate negative pressure in the internal passage for pumping milk, a hood attaching portion to which a hood fitted to a breast is attached, the hood attaching portion being disposed at a front part of the main body, and a bottle attaching portion to which a bottle for collecting milk is attached, the bottle attaching portion being disposed at a lower part of the main body. The handle is pivotal to the main body and includes a basal end, at a side located closer to a pivot point on the main body, connected to the negative pressure generation mechanism. The handle includes a finger rest at a distal side and extends forward from the pivot point beside the main body.

公开(公告)号：US11168800B2

公开(公告)日：2021-11-09

申请号：US16622001

申请日：2018-06-22

申请人： PIGEON CORPORATION

发明人： Yukifumi Ochiai ,  Yuichiro Tanaka ,  Yoshihito Sugiyama

IPC分类号： F16K15/03 ,  F16K15/18 ,  F16K15/14 ,  A61M1/06

摘要： [Problem]
To provide a check-valve in which the occurrence of damage such as tearing, deformation, etc., can be suppressed.
[Solution]
A check-valve opens and closes an opening provided in a main body and prevents a backflow of a fluid passing through the opening; and the check-valve includes a base part 71 which is flexible, and a valve part 72 which opens and closes the opening, has a thickness thinner than a thickness of the base part 71, and is connected to the base part 71 in a state in which a periphery of the valve part 72 is surrounded with the base part 71. The valve part 72 seals the opening in a normal state of the valve part 72 being pre-urged toward the main body by an elasticity of the base part 71, and opens the opening when the fluid passes through the opening in one direction.