| 摘要 |
A manual breast pump can be operated by one hand is provided. Urging a funnel against a human breast and squeezing a flexible handle to press an arm will straighten the arm to lift a sliding member along two opposite grooves of a support and lift a piston respect to a cylinder so as to create a vacuum in a portion of the cylinder below a piston ring and the vacuum is communicated to the funnel for drawing milk from the breast into a blocked valve on a top opening of a bottle through the funnel for temporarily storing. Immediately releasing the handle will pivot both links of the arm toward each other, move both the sliding member and the piston downwardly to exert a force on the valve such that the valve is open to drop the milk into the bottle. |
