Suction device
AssigneeMurata Manufacturing Co., Ltd.
InventorNobuhira Tanaka
Life of this patent
Estimating the term…
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).
Claims15
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;
- 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;
- and
- a third form in which the first connection portion and the second connection portion communicate with each other, both the first connection portion and the second connection portion communicate with the suction hole, and both the first connection portion and the second connection portion do not communicate with the discharge hole.
Dependencies are inferred from the claim text.