A fluid transfer assembly is described. The fluid transfer assembly includes a unitary junction having an upstream portion and a downstream portion, the unitary junction defining a plurality of curved fluid pathways between the upstream portion and the downstream portion. The assembly also includes at least one flexible fluid conduit sealed to the junction in fluid communication with at least one of the plurality of curved fluid pathways.

A method for joining composite rods with tubular shape includes internal and external collars applied to the ends of the composite rod and deformed via unidirectional compressive load applied by a clamp in the radial direction of the composite rod cross-section. The resulting plastic deformation of the metal collars and composite rod interlock those components to support both compressive and tensile loads.

A method for joining composite rods with tubular shape includes internal and external collars applied to the ends of the composite rod and deformed via unidirectional compressive load applied by a clamp in the radial direction of the composite rod cross-section. The resulting plastic deformation of the metal collars and composite rod interlock those components to support both compressive and tensile loads.

Provided herein are methods and compositions for narrowing the inside diameter of tubing, in some cases where the narrowing is provided by a taper on one or both ends of the narrowed portion of the tubing.

In order to produce a tubular filter membrane element for microfiltration purposes, a plastic section of a small membrane tube is sealed at one axial end thereof and is fitted with a plastic adapter piece at the opposite end. The adapter piece is injection-molded onto the section of the small membrane tube and is preferably welded thereto. The section of the small membrane tube is sealed at the one axial end thereof by bringing this end into contact with a hot stamp.

In order to produce a tubular filter membrane element for microfiltration purposes, a plastic section of a small membrane tube is sealed at one axial end thereof and is fitted with a plastic adapter piece at the opposite end. The adapter piece is injection-molded onto the section of the small membrane tube and is preferably welded thereto. The section of the small membrane tube is sealed at the one axial end thereof by bringing this end into contact with a hot stamp.

Method and apparatus are disclosed for mechanically opening a heat-bonded connection site between two hollow, flexible, thermoplastic segments of a medical fluid flow path, the heat-bonded connection site having an axis. The connection site is compressed between two facing surfaces, and the facing surfaces are relatively moved to rotate the connection site about the connection site axis and to apply force to the connection site substantially perpendicular to the connection site axis.

Method and apparatus are disclosed for mechanically opening a heat-bonded connection site between two hollow, flexible, thermoplastic segments of a medical fluid flow path, the heat-bonded connection site having an axis. The connection site is compressed between two facing surfaces, and the facing surfaces are relatively moved to rotate the connection site about the connection site axis and to apply force to the connection site substantially perpendicular to the connection site axis.

A method for joining composite rods with tubular shape without expensive, machined connectors and without compromising the structural integrity of the composite rod includes internal and external collars applied to the ends of the composite rod and deformed via unidirectional compressive load applied by a clamp in the radial direction of the composite rod cross-section. The resulting plastic deformation of the metal collars and composite rod interlock those components to support both compressive and tensile loads. The deformed metal collars are easily joinable to other components via off-the-shelf hardware.

A method for joining composite rods with tubular shape without expensive, machined connectors and without compromising the structural integrity of the composite rod includes internal and external collars applied to the ends of the composite rod and deformed via unidirectional compressive load applied by a clamp in the radial direction of the composite rod cross-section. The resulting plastic deformation of the metal collars and composite rod interlock those components to support both compressive and tensile loads. The deformed metal collars are easily joinable to other components via off-the-shelf hardware.