Abstract: A method for reinforcing a weak sealed portion of a multi-chamber medical container by simple processing.

Abstract: It is an object of the resent invention to provide a multi-chamber container that has a weak seal portion having an increased joining strength and being easy to be opened when in administration of medicine, and that is provided at low cost. The multi-chamber container includes a medicine accommodation chamber 1, a diluting solution chamber 3 jointed to one side of the medicine accommodation chamber 1 via a partitioning weak seal portion 2, an unoccupied chamber 5 having a port 6 and joined to an opposite side of the medicine accommodation chamber 1 via a discharging weak seal portion 4, a film member 7 attached to the medicine accommodation chamber 1 for increasing a joining strength of each of the discharging weak seal portion 2 and the discharging weak seal portion 4, the discharging weak seal portion 4 having an easy-to-open portion 8 that enables the discharging weak seal portion 4 to easily opened therethrough.

Abstract: A plastic ampule of the present invention is composed of a single layer of a plastic layer consisting only of a cyclic polyolefin with a glass transition temperature of 50° C. to 104° C.; integrally includes an ampule body formed in a bottle shape with a top part and a bottom part and having a bung for discharging a drug solution on the top part, a cap attached to the ampule body so as to seal the bung, and a thinner part having a layer thickness thinner than those of the ampule body and the cap, formed along a circumferential direction of the bung and connecting between the ampule body and the cap; and is opened by breaking off or twisting off the thinner part as a cutting part between the ampule body and the cap.

Abstract: An object of the invention is to provide a method for. reinforcing a weak sealed portion of a multi-chamber medical container by simple processing.

Abstract: An environment friendly and inexpensive gas barrier film that allows a medicine to be clearly visible from outside and prevents erroneous administration is provided. A multichamber bag having a diluting solution chamber 3 jointed to one end side of a medicine-accommodation chamber 1 via a weak sealing part 2 and an unoccupied chamber 5 having an opening part 4 jointed to the other end side of the medicine-accommodation chamber 1 via a weak sealing part 2, wherein the medicine-accommodation chamber 1, the diluting solution chamber 3 and the unoccupied chamber 5 are made of a transparent film material and the outside of the medicine-accommodation chamber 1 is covered with a transparent gas barrier film 6, is provided.

Abstract: It is an object of the resent invention to provide a multi-chamber container that has a weak seal portion having an increased joining strength and being easy to be opened when in administration of medicine, and that is provided at low cost. The multi-chamber container includes a medicine accommodation chamber 1, a diluting solution chamber 3 jointed to one side of the medicine accommodation chamber 1 via a partitioning weak seal portion 2, an unoccupied chamber 5 having a port 6 and joined to an opposite side of the medicine accommodation chamber 1 via a discharging weak seal portion 4, a film member 7 attached to the medicine accommodation chamber 1 for increasing a joining strength of each of the discharging weak seal portion 2 and the discharging weak seal portion 4, the discharging weak seal portion 4 having an easy-to-open portion 8 that enables the discharging weak seal portion 4 to easily opened therethrough.