A method of making a storage bag comprising the following steps performed in any order: (a) forming a composite tube having an inner surface comprising a higher melting polymer, an outer surface comprising a lower melting polymer, two ends, and a diameter; (b) flattening the tube in a direction perpendicular to the diameter; (c) forming a joint at one of the ends at a temperature between respective melting points of the higher melting polymer and the lower melting polymer; (d) providing a composite sheet having a first side comprising a higher melting polymer and a second side comprising a lower melting polymer; and (e) disposing the composite sheet over the joint such that the first side comprising a lower melting polymer engages the joint and forming a lap seam over the joint at a temperature between respective melting points of the higher melting polymer and the lower melting polymer, and a storage bag made by such method.

The invention relates to a biopharmaceutical container comprising: a connector to be secured to a chamber connector; a bag serving as a receptacle, one part of which is secured to the connector; and a flexible tube tucked inside the bag, which tube can extend out from the bag through the connector. The biopharmaceutical container, wherein: the tube forms part of the bag, the tube is a neck of reduced size extending from the body of the bag, and the aforementioned part of the bag that is secured to the connector is a fold in the wall of the bag, said wall of the bag forming the body of the bag on one side of the fold and the tube on the other side of the fold.

In order significantly to reduce the risk of contamination of a bag for medical purposes, in particular due to residual particles of tube material caused during cutting of a tube for access to the bag, the invention proposes a system (1) for producing a bag for medical purposes, comprising a tube transfer station (2) with a transfer means (3) for transferring a tube (11) coming into the tube transfer station (2) to a holder (10) and for the severing there of a tube section (17) transferred to the holder (10) from a remaining portion (18) of the incoming tube (11) in order subsequently to be able to make the severed tube section (17) connectable to two film layers for forming an access to the bag, wherein the tube transfer station (2) has a tube-tension-holding means (15) on the holder side and also a tube-pulling means (16), which means are designed to introduce tensile forces (19) between the severed tube section (17) and the remaining portion (18) of the incoming tube (11) while the severing takes place.

An ostomy appliance includes a waste collection bag that is molded to form a front wall that continuously extends to form both a side wall and a rear wall. The rear wall is spaced apart from the front wall when the waste collection bag is empty. A bottom of the waste collection bag is defined by a curved bottom wall that continuously extends from both the front wall and a rear wall. The waste collection bag is formed to include a longitudinal curvature within at least one of the front wall and the rear wall, and a connector is integrally molded into the rear wall of the waste collection bag around a waste inlet.

The invention relates to a welding tool and to a method for pulse welding of plastic films for medical packs formed as bags. In general, the invention provides that the film material which is plastified during welding and thus free-flowing is specifically displaced into a deepened, edge-side inner region of the sealing surface by increasing the sealing surface area. The film material accumulated in the recess leads to an increase in the film thickness in the inner region (25i) of the weld seam (6, 7, 8). As a result, the mechanical stability of the medical pack formed as a bag can be improved.

Provided is a cell preserving vessel which is protected against damage during storage. The cell preserving vessel 1 includes: a vessel body 10 which is made of a flexible resin member and has a cell accommodating part 11; a cell introducing tube 20 which is connected to the vessel body 10 and through which cells are introduced into the cell accommodating part 11; and a pair of tube protecting parts 40 which are arranged to hold the cell introducing tube 20 therebetween and which protect a vicinity of a joined portion of the cell introducing tube 20, the joined portion being joined to the vessel body 10. The tube protecting parts 40 are preferably constituted by sheet members 50 and 60 that form the vessel body 10.

An injection molding device comprising an injection mold with a middle mold part arranged in a first direction between a first outer mold part and a second outer mold part. The first outer mold part and the second outer mold part are linearly movable with respect to the middle mold part in the first direction between an open position and a closed position of the injection mold. The middle mold part is turnable about a rotation axis and comprises a side face which comprises a first cavity suitable to temporarily receive a first component. The first cavity communicates with a first half of a second cavity. At least one of the outer mold parts comprises a second half of the second cavity which interacts with the first half to form the second cavity to receive a liquefied first plastic material to form a second component interconnected to the first component.

A device (10) for sealing three-dimensional objects (16) in the bag opening (14) of a film bag (12) comprises a clamp (36, 38) for the film bag (12), which has a pair of clamping shoes (42, 44) on each side, between which the edge of the film bag (12) is held. A heat sealer (26, 28) is provided for sealing the three-dimensional object (16) in the bag opening (14) of the film bag (12), wherein the heat sealer (26, 28) has a pair of sealing jaws (26, 28) between which the bag opening (14) of the film bag (12) can be sealed. The two clamping shoe pairs (42, 44) of the clamp (36, 38) are moved apart from one another during the sealing process.

An injection molding device with a middle mold part arranged in a first direction between first and second outer mold parts that are linearly movable with respect to the middle mold part in the first direction between open and closed positions. One or more side face regions of the middle mold part is configured to receive and hold in a lateral position a cavity module from outside of the injection mold during injection molding. A first cavity arranged in the cavity module at least in the closed position of the injection mold communicates with a first cavity half of a second cavity. At least one of the outer mold parts includes a second half of the second cavity, which interacts with the first half to form the second cavity to receive a liquefied plastic material and to form a second component interconnected to the first component.

An installation for producing bags from two-layer plastic film includes a film gripper for drawing the plastic film into a tool at a first station, and a rotary conveyor belt for conveying the film through a plurality of stations. The film gripper is designed to guide the plastic film through the first station to a second station.