A method of making a flexible medical article or tube, for example, a sheath for a vascular access device, is provided. The method can include extruding a polymer, for example, a polycarbonate-urethane copolymer, to form a tube and annealing the extruded polymer. The method can further include cutting the extruded tube to a desired length before or after annealing, flaring one end of the annealed tube and over-molding the flared portion onto a hub, and forming the other end of the tube into a tip. A sheath formed by such a method is also provided.

Provided is a soft container in which a tip portion of a body portion can be blocked with one member. The tip portion of a flexible body portion 10 of a soft container 1 is blocked by a tip sheet member 20. The tip sheet member 20 integrally has a circumferential side portion 21, a shoulder portion 22, and a top portion 23. The tip sheet member 20 is constituted by a self-supporting film molded body 28 having a uniform thickness. The tubular circumferential side portion 21 and the body portion 10 are joined to each other. The shoulder portion 22 is reduced in diameter in a tapered shape from the circumferential side portion 21 toward the tip side. The top portion 23 blocks the tip portion of the shoulder portion 22.

A process for producing a tube, comprising forming a blow-molded article and removing a bottom portion of said blow-molded article. The blow-molded article includes (i) a head portion, and (ii) a tube portion integral with said head portion. The tube may be decorated, such as with a label.

A combination of a sonotrode and anvil, includes a sonotrode/anvil surface and a first row of sonotrode/anvil welding contact elements. The first/second series of each of the sonotrode/anvil welding contact element of a first row includes a first/second adapted lateral surface that joins at least one part of the first/second plateau surface with at least one part of the sonotrode/anvil surface side. The first/second adapted lateral surface includes a first/second curved surface positioned between the first/second plateau surface and the first/second substantially straight surface. The first/second curved surface has a convex outward arch. The welding contact element is positioned in relation to the anvil welding contact element such that the sonotrode welding contact element is positioned during welding next to the anvil welding contact element and is provided to form at least one part of a weld seam.

A dispenser (10) for dispensing flowable materials has a container assembly (12) having a dividing wall (19). A first chamber (18) and a second chamber (20) are defined in the container assembly (12). The first chamber (18) is configured to contain a first flowable material (M1) (140) and the second chamber (20) is configured to contain a second flowable material (M2) (142). A membrane (34) is positioned in the container and cooperates with the dividing wall (19) to enclose the first and second chambers (18, 20). The membrane (34) has a first section (132) having a first weld seam (148) and a second section (134) having a second weld seam (150). The first section (132) is separated from the second section (134) by a non-rupturable member (33). Rupture of the membrane (34) allows the flowable materials into a third chamber (42) in which the flowable materials mix to form a mixture, and from which the mixture is dispensed.

A laminate tube with an invisible longitudinal overlapped side seam formed from overlap welding an edge of one margin of a laminate sheet comprising an outer plastic layer (A), a barrier layer (B), and an inner plastic layer (C) of the same material type as the outer plastic layer (A) to the other edge of the opposite margin of the laminate sheet, such that an inner surface of the laminate tube has a hump in a overlapped region, while an outer surface of the laminate tube is smooth without a hump in the overlapped region; and a process for manufacturing the laminate tube by a laminate tube manufacturing machine. The laminate permits fracture-proof welding of longitudinal margins of said laminate to give a continuous tube which is suitable for manufacturing of high-quality plastic tubes, high-quality plastic bags and the like.

A processing method of a tube head structure and a product thereof, specifically suitable for tube body made of special materials. The present invention improves a connecting method between the tube head and the tube body such that the two are more firmly connected. The processing method includes the following steps: A tube body sleeves a core rod; an upper mold is pressed to the core rod; when the upper mold is pressed downward, an upper end of the tube body is pressed and bends inwardly; after the upper mold finishes the downward pressing process, a tube head shaped cavity is formed between the upper mold, the tube body and the core rod, and a tip of the upper end of the tube body is not in contact with an opposite surface of the upper mold and an opposite surface of the core rod; injection molding material of the tube head is injected into the tube head shaped cavity, and the mold is opened after the injection molding material cools down and solidifies, thereby completing the injection molding. A tube head structure, including a tube body, and a tube head formed on the upper end of the tube body by overmolding; a shoulder position of the tube head protrudes to form an outer wrapping edge and an inner wrapping edge; the outer wrapping edge is positioned above the inner wrapping edge and the two are spaced apart by a gap; the upper end of the tube body bends inwardly; the outer wrapping edge and the inner wrapping edge are adhered to an outer surface and an inner surface of the upper end of the tube body by overmolding.

Provided is a method for making barrier tube shoulders. The method includes forming a parison from a multi-layer laminated structure having an inner layer that faces an interior of the parison, an outer layer comprising an exterior surface of the parison, and an interdisposed layer between the inner layer and the outer layer, wherein the interdisposed layer is a flavor barrier layer. The method also includes providing an extrusion blow molding (EBM) mold comprising at least one cavity shaped as a barrier tube shoulder, positioning the parison in the EBM mold, and blow molding the parison such that the parison substantially conforms to the EBM mold to form a barrier tube shoulder having the barrier layer.

A blow mold system including a mold body and a base portion. The mold body includes a central bore extending from a first end of the mold body to a second end of the mold body along a longitudinal axis. The first end is configured to receive a mold preform. The base portion includes a recess, and the base portion is arranged at the second end of the mold body such that the central bore and recess define a blow mold cavity in which a container may be formed from the mold preform. In embodiments, the blow mold system has at least two interchangeable base portions that allow for containers with differently-sized or differently-shaped necks to be formed.

The method for manufacturing a container having a substantially stiff outer container and a readily deformable inner bag of thermoplastic plastic materials which do not form a weld connection with one another, with a container opening and holes in the outer container, wherein the method includes forming holes in the wall of the outer container at diametrically opposed positions, which lie on the intersection line of a plane defined by the base seam and the longitudinal axis of the container with the container wall and that a pin-shaped tool forces the inner bag through the holes by a predetermined distance from the wall of the outer container and thereby detaches it from the wall, whereafter a pressure medium is introduced through the holes into the gap between the inner bag and the outer container, which detaches the inner bag from the wall of the outer container.