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

Abstract: There is provided a multi-chamber bag that is capable of securely checking a medicinal substance accommodated therein without the necessity to perform a troublesome work, while preventing a matter deteriorating the medicinal substance from reaching the inside of a medicinal-substance accommodation chamber and hence securely preventing the deterioration of the medicinal substance. In a multi-chamber bag having a bag body that has a strong seal part that joins two sheet members together to define an interior space of the bag body, and a weak seal part that joints the two sheet members together so as to be able to rupture them apart, thereby partitioning the interior space of the bag body into a medicinal-substance accommodation chamber and a diluting-solution accommodation chamber, a pair of cover sheets are provided to respectively cover the medicinal-substance accommodation chamber.

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 drug container of a multilayer film including a first layer (1) composed of a linear ethylene/?-olefin copolymer having a density of 0.930 to 0.950 g/cm3, a second layer (2) and a fourth layer (4) each composed of a mixture containing a linear ethylene/?-olefin copolymer having a density of 0.860 to 0.920 g/cm3 in a weight ratio of 95:5 to 40:60, a third layer (3) composed of a polycycloolefin, and a fifth layer (5) composed of a mixture containing a polyethylene and a polypropylene, the fifth layer 5 serving as an innermost layer.

Abstract: Provided a port member for an infusion solution bag that is capable of suppressing occurrence of gaps or wrinkles in a sealed portion in a manufacturing process, and preventing damages to resin sheets of a bag body during storage or transportation. A port member for an infusion solution bag includes a tubular body portion having one end sealed by a plug member structured to enable a hollow needle to be pierced into the plug member, and a tubular to-be-sealed portion continuously formed with an other end of the body portion and having an inner space communicated with the inside of the body portion, the to-be-sealed portion being held between and sealed to end portions of resin sheets overlapped together to form a bag body having an inner space for accommodation of at least a medicine, in which the to-be-sealed portion thus sealed has a radially flattened shape.

Abstract: There is provided a multi-chamber bag that is capable of securely checking a medicinal substance accommodated therein without the necessity to perform a troublesome work, while preventing a matter deteriorating the medicinal substance from reaching the inside of a medicinal-substance accommodation chamber and hence securely preventing the deterioration of the medicinal substance. In a multi-chamber bag having a bag body that has a strong seal part that joins two sheet members together to define an interior space of the bag body, and a weak seal part that joints the two sheet members together so as to be able to rupture them apart, thereby partitioning the interior space of the bag body into a medicinal-substance accommodation chamber and a diluting-solution accommodation chamber, a pair of cover sheets are provided to respectively cover the medicinal-substance accommodation chamber.

Abstract: It is an object of the present invention to provide a drug container excellent in unsealability, gas barrier property, contamination resistance, heat resistance, antiblocking property and transparency, and to provide a multilayer film for production of the drug container. To achieve the object, the drug container is formed, for example, of a multilayer film including a first layer (1) composed of a linear ethylene/?-olefin copolymer having a density of 0.930 to 0.950 g/cm3, a second layer (2) and a fourth layer (4) each composed of a mixture containing a linear ethylene/?-olefin copolymer having a density of 0.860 to 0.920 g/cm3 and a linear ethylene/?-olefin copolymer having a density of 0.930 to 0.950 g/cm3 in a weight ratio of 95:5 to 40:60, a third layer (3) composed of a polycycloolefin, and a fifth layer (5) composed of a mixture containing a polyethylene and a polypropylene, the fifth layer 5 serving as an innermost layer.

Abstract: Provided a port member for an infusion solution bag that is capable of suppressing occurrence of gaps or wrinkles in a sealed portion in a manufacturing process, and preventing damages to resin sheets of a bag body during storage or transportation. A port member for an infusion solution bag includes a tubular body portion having one end sealed by a plug member structured to enable a hollow needle to be pierced into the plug member, and a tubular to-be-sealed portion continuously formed with an other end of the body portion and having an inner space communicated with the inside of the body portion, the to-be-sealed portion being held between and sealed to end portions of resin sheets overlapped together to form a bag body having an inner space for accommodation of at least a medicine, in which the to-be-sealed portion thus sealed has a radially flattened shape.

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.