| CPC A61J 9/04 (2013.01) [A61J 11/002 (2013.01)] | 7 Claims |

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1. An anti-colic baby bottle, comprising a bottle body (1) and a nipple (2) mounted at an open end of the bottle body (1) through a threaded fixing ring (3), wherein a thickened portion (22) is arranged on one side of the nipple (2) close to the bottle body (1); an anti-colic separation sheet (4) is arranged between the bottle body (1) and the nipple (2) to divide the baby bottle into two cavities, one of the two cavities is in the bottle body (1) and another of the two cavities is in the nipple (2); an air inlet (21) is formed in the thickened portion (22) of the nipple (2); the anti-colic separation sheet (4) is connected with an air guide pipe (5) which correspondingly adapts to the air inlet (21) and extends into the bottle body (1); the air guide pipe (5) and a sucking end of the nipple (2) are symmetrically arranged on two sides of the bottle body (1) in a radial direction; a top end of the air guide pipe (5) facing the air inlet (21) is connected to the air inlet (21) through a one-way valve I (6); and a bottom end of the air guide pipe (5) located in the bottle body (1) is connected with a one-way valve II (7).
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