A method for producing components or profiles from at least one solidifiable plastic compound in an injection moulding facility, said method comprising stationary mould components and mould components which are movable with respect thereto. The method includes injection of solidifiable plastic compound into a channel formed in the movable mould components and, from there, via connections either in portions into one or more mould cavities. The channel is enclosed by at least one stationary, temperature-controlled mould component. A continuous channel compound strand is formed with attachment compound strands, which is transported away from the injection point with increasing cooling and solidification and increasing length, together with the filled mould cavities and mould cavity portions. The channel compound strand, together with the connection mass strands, after its solidification and after opening the mould cavity or the mould cavities is separated from the component(s), and the component or the components is/are ejected.

Disclosed and described is a hose for attachment to a dispensing cartridge for placement in a peristaltic pump, for stretching over a rotor of the peristaltic pump, and for conveying a medium by external mechanical deformation of the hose. The hose has a length of preferably 20 mm to 200 mm, an internal cross-sectional area of 0.07 to 7.07 mm.sup.2, and a wall thickness of 0.3 mm to 2.2 mm. Thickenings are formed at both ends of the hose and the distance between the thickenings is 40 mm to 100 mm. According to the invention, it is provided that the hose is manufactured by an injection molding process, the inner cross-sectional area has a tolerance of at most ±33%, and the hose is suitable for closing completely when stretched over the rotor with a tension force of 1 to 10 N.

Acupuncture needles may be used for piercing tissue with less trauma than may occur when employing larger gauge needles. However, because acupuncture needles are fabricated and packaged differently than are larger gauge needles, acupuncture needles may be less compatible with certain manufacturing processes. Needle assemblies compatible with manufacturing processes may comprise a continuous support material having a plurality of apertures defined therein, and a first injection molded coupler that surrounds a proximal portion of an acupuncture needle and connects the acupuncture needle to a first location upon the continuous support material, such that the acupuncture needle is held in a pre-determined orientation with respect to a longitudinal axis of the first injection molded coupler. The acupuncture needles in adjacent apertures may also be spaced apart substantially uniformly.

Injection molding system having a flow control apparatus and method that controls the movement and/or rate of movement of a valve pin over the course of an injection cycle to cause the pin to move to one or select positions and/or to control the rate of movement of the pin over the course of the injection cycle. In one embodiment the method includes steps of: a) first controllably operating the actuator to drive the valve pin upstream beginning from the first closed position (50) to be moved to and held in a first selected position (51) for a first selected period of time during the course of an injection cycle, the first selected position (51) being the full open position; b) second controllably operating the actuator to drive the valve pin, during the injection cycle, downstream beginning from the first selected position (51) to be moved to and held in a second closed position (52) for a second selected period of time; c) third controllably operating the actuator to drive the valve pin, during the injection cycle, upstream beginning from the second closed position (52) to be moved to and held in a second selected position (53) for a third selected period of time, the second selected position being an intermediate position or the full open position; and d) fourth controllably operating the actuator to drive the valve pin, during the injection cycle, downstream beginning from the second selected position (53) to be moved to a third closed position (54).

Illustrative methods of manufacturing flexible drive shaft assemblies for preparing bone can include steps such as providing, receiving or manufacturing a mold. Injecting a first polymeric material into the mold to form a coupling member, the coupling member adapted for attachment to a torque-providing driving tool. Injecting a second polymeric material into the mold to form a work member, the work member adapted to interface with the bone to prepare the bone. The method can further include injecting a third polymeric material into the mold in an overmolding process to form a flexible shaft extending from the coupling member to the work member. The assemblies resulting from such methods can include a flexible shaft that is adapted to transmit a majority of a torque received from a torque-providing driving tool through the flexible shaft. In some examples, the flexible shaft can include a solid polymeric shaft.

An apparatus for molding a part includes a plunger cavity, a plunger, and a mold cavity, wherein the plunger is oriented out-of-plane with respect to a major surface of the mold cavity, and first and second vents couples to respective first and second portions of the mold cavity. In a method, resin and fiber are forced into the mold cavity from a plunger cavity, and at least some of the fibers and resin are preferentially flowed to certain region in the mold cavity via the use of vents.

A method of over-molding materials includes: providing a first material in a groove in a first portion of a mold such that only a single surface of the first material is exposed to a vacant portion of the mold; providing, via an injection molding process, a second material in a liquid form in the vacant portion of the mold adjacent to, and in engagement with, the first material; and allowing the second material to solidify and become directly coupled to the first material, thus forming a single component. During the method, the entire single surface of the first material is flush with a plane defined by outer surface of the first portion of the mold. The second material has one or both of a greater hardness when solidified than the first material and/or a higher melting temperature than the first material.

An apparatus for molding a part includes a plunger cavity, a plunger, and a mold cavity, wherein the plunger is oriented out-of-plane with respect to a major surface of the mold cavity, and first and second vents couples to respective first and second portions of the mold cavity. In a method, resin and fiber are forced into the mold cavity from a plunger cavity, and at least some of the fibers and resin are preferentially flowed to certain region in the mold cavity via the use of vents.

A composite containing directly adjoining and firmly bonded sections (I) and (II) of the following type: (I) section, formed from a thermoplastic moulding compound FM-1 containing at least one polyamide (A) and optionally fillers and reinforcing materials (C) and additives (D); (II) section, formed from a thermoplastic moulding compound containing at least one olefinic and/or vinyl aromatic polymer (E) and optionally fillers and reinforcing agents (F), plasticisers (G) and additives (H);
wherein the moulding compound FM-1 or FM-2 contains 0.1 to 5.0 percent by weight of polyethyleneimine (B) or a copolymer or derivative thereof and a method for producing such composites.

A method of manufacturing a medical component includes preparing a first sheet of an elastomeric material, arranging at least one electronic device in the first sheet of elastomeric material to obtain an elastomeric preform, and arranging the elastomeric preform in a mold and molding the elastomeric preform therein to cure the elastomeric material and form the medical component having the at least one electronic device embedded therein.