A method of forming a hose includes: extruding a web of plastics material from a first extruder; helically winding the extruded web about a mandrel or at least one rotating rod to form a wall of the hose; feeding an electrical wire into a second extruder; extruding a bead of plastics material around the electrical wire from the second extruder such that the extruded bead includes the electrical wire at a location within a cross-section of the extruded bead; cooling the extruded bead to cool the plastics material adjacent the location to prevent migration of the electrical wire away from the location; re-heating the extruded bead to cause outer surface portions of the plastics material of the extruded bead to become molten; and helically winding the extruded bead onto and about an external surface of the wall to provide the wall a support helix that incorporates the electrical wire.

Disclosed is an injection molding method for a degradable intravascular stent with a flexible mold core structure. The injection molding method includes the following steps: Step 1, winding a metal rod with a flexible metal film, and applying an inward bending stress to the flexible metal film; Step 2, fixing the flexible metal film to the metal rod, and processing a complementary structure of the degradable intravascular stent on the surface of the flexible metal film; Step 3, performing injection molding processing; Step 4, ending the injection molding, removing the mating body of the flexible metal film and the metal rod and the degradable intravascular stent formed on the surface of the flexible metal film by injection molding, performing cooling, separating the metal rod from the flexible metal film, withdrawing the metal rod, and then removing the flexible metal film to obtain a formed degradable intravascular stent.

A tube welder including a clamp block configured to receive a tube, a carriage movable along a first axis, and a slide rail coupling the clamp block to the carriage such that the clamp block is configured to move along a second axis between the carriage and the clamp block. The tube welder further including a spring biasing the clamp block in a first direction along the second axis and a linkage configured to move the clamp block in the first direction and in a second direction along the second axis, opposite the first direction.

The object of the invention can be a method of manufacturing a product in the form of a sandwich comprising a core and outer layers. The outer layers may be composed of composite material comprising a fiber-reinforced polymeric matrix. The method uses an insert of heat-resistant material, for example silicone. The object of this invention can be to provide a method of manufacturing a sandwich that dissociates the choice of material of the core of the sandwich from the choice of the material of the outer layers.

The object of the invention can be a method of manufacturing a product in the form of a sandwich comprising a core and outer layers. The outer layers may be composed of composite material comprising a fiber-reinforced polymeric matrix. The method uses an insert of heat-resistant material, for example silicone. The object of this invention can be to provide a method of manufacturing a sandwich that dissociates the choice of material of the core of the sandwich from the choice of the material of the outer layers.

A method of constructing a catheter assembly having an integrated septum. The method comprising molding a catheter hub having a distal end, a proximal end, and an internal wall defining an internal fluid passageway therebetween, the internal fluid wall defining an injection mold window located between the distal end and the proximal end; seating a catheter tube within the internal fluid passageway of the catheter hub, such that a proximal end of the catheter tube resides within the internal fluid passageway of the catheter hub, and a distal end of the catheter tube extends distally from the distal end of the catheter hub; plugging at least a proximal end of the catheter hub with a mold core shut off pin; and injection molding a septum in at least a portion of the internal fluid passageway between the mold core shut off pin and the proximal end of the catheter tube through the injection mold window.

A method for producing pipettes (110, 111, 112) is provided. The method includes extruding a polymer melt into at least one mold segment of a mold assembly (120) having a plurality of mold segments to form a parison (50) or preform, wherein the plurality of mold segments (122) comprise cavities (42) that are shaped to form pipettes when in communication with the cavity of an adjacent mold segment; forming at least two pipettes in the shape of the mold segment cavities by blow-molding or vacuum forming the parison or preform, each of the at least two pipettes having proximal and distal ends; heating the pipettes to form a locally heated portion of the at least two pipettes; and separating the pipettes by cutting the locally heated portion of the at least two pipettes with separation feature (64, 66, 194, 196).

Herein is described a pressure resistant shell for stabilizing a welding seam of a weldable tubing as well as a method of using it.

The inventive method for manufacturing a medical device having a shuttle mold system mounted in a vertical injection molding machine, the shuttle mold system having a top section and two bottom sections, with the two bottom sections mounted 180 degrees from each other on a rotating table and the top section mounted in a fixed position above the rotating table, and where after molding, the table rotates 180 degrees for removal of parts and inserting fixtures for the next device manufacture cycle.

Tubing, such as medical tubing for administration of intravenous fluid, can include an inner layer, an outer layer concentrically disposed about and surrounding the inner layer, and an intermediate layer interposed between the inner and outer layers. The intermediate layer may include a light protection additive therein.