US 2017/0173233 A1Published application

Suction device

AssigneeMurata Manufacturing Co., Ltd.

InventorNobuhira Tanaka

Life of this patent

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Abstract

A breast pump (100) includes a left cup portion (1), a right cup portion (2), a tube (15, 16, 99), a pump (30), a container (14), a first switching valve (V1), a second switching valve (V1), and a control unit (70). The internal space of the tube (99) forms a passage (10). The passage (10) connects a first separator (S1) that communicates with a closed space (51), a second separator (S2) that communicates with a closed space (52), a discharge hole (31) of the pump (30), and a suction hole (32) of the pump (30). The first switching valve (V1) is provided within the tube (99) that is in the middle of the passage (10). The second switching valve (V2) is also provided within the tube (99) that is in the middle of the passage (10).

Claims19

Dependent claims

A suction device comprising:

a pump having a discharge hole and a suction hole;
a first worn portion having a first connection portion;
a second worn portion having a second connection portion;
a passage connecting the first connection portion, the second connection portion, the discharge hole, and the suction hole;
and
a switching mechanism provided in a middle of the passage and configured to switch the passage, wherein
the switching mechanism switches the passage between:
a first form in which the first connection portion and the suction hole communicate with each other, the second connection portion and the discharge hole communicate with each other, and the first connection portion and the second connection portion do not communicate with each other;
and
a second form in which the first connection portion and the discharge hole communicate with each other, the second connection portion and the suction hole communicate with each other, and the first connection portion and the second connection portion do not communicate with each other.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/451,722Filed 7 Mar 2017
Priority: JP 2014-1835489 Sep 2014
Published: 22 Jun 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

A61M 1/06
Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems:…
A61M 1/743
Suction control: by changing the cross-section of the line, e.g. flow regulating valves
A61M 39/223
Valves or arrangement of valves: multiway valves
A61M 2039/265
Valves closing automatically on disconnecting the line and opening on reconnection thereof: electrically operated, e.g. a male connector closing…

Family

Application15/451,722Continuation
US 10,688,228 B2Related patent
US 2017/0173233 A1This patent

From the US filing history. Foreign family members aren’t listed.

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