Abstract: An ampoule opener is provided. The ampoule opener includes a clamping element and a cylindrical sleeve element. The clamping element includes a plurality of clamping arms. Each one of the plurality of clamping arms includes a clamping terminal. The cylindrical sleeve element is disposed around the clamping element. The cylindrical sleeve element is adapted to move back and forth along the clamping arms thereby adjusting an interval of each two adjacent clamping terminals. The ampoule opener is capable of breaking off ampoules with various calibers due to that the interval between the clamping terminals can be adjusted by moving the cylindrical sleeve element.

Abstract: A backpack includes a strapping member and a base structure. At least two straps are disposed on a first surface of the strapping member and at least one pivotal structure is disposed on a second surface thereof. The base structure includes a plate member, at least one storing structure, and at least one containing structure. The plate member is pivoted to the strapping member via the pivotal structure. The storing structure and the containing structure are disposed on a second surface of the plate member which corresponds to the second surface of the strapping member. The containing structure includes an upper containing structure and a lower containing structure for accommodating fluid. A connecting structure is connected between the upper containing structure and the lower containing structure, and a stopper structure is disposed on the connecting structure.

Abstract: An apparatus for fastening and carrying bottles includes a support ring and a connecting device. The support ring is inherently formed on the bottle and has at least an opening. The connecting device engages the opening of the support ring to allow people to carry the bottle by holding the connecting device or by engaging the connecting device with an object. The apparatus has many advantages, including never loss, low cost for manufacture, and recycle.