A system (100) and method to control rheology of ceramic pre-cursor batch during extrusion is described herein. An extrusion system (100) comprises an extruder (122) with an input port (144) configured to feed ceramic pre-cursor batch into a first section (120) of an extruder barrel and a discharge port configured to extrude a ceramic pre-cursor extrudate (172) out of the extruder barrel downstream of the input port (144). A liquid injector (210) is configured to inject liquid into the ceramic pre-cursor batch. A sensor (106) is configured to detect a rheology characteristic of the ceramic pre-cursor batch. A controller (108) is configured (i) to receive the rheology characteristic from the sensor (106), (ii) compare the rheology characteristic to a predetermined rheology value of the ceramic pre-cursor batch, and (iii) generate a command based on the comparison. A liquid regulator (110) is configured to receive the command and adjust liquid flow to the liquid injector (210) based on the command.

A skin-forming die includes an inlet face; an outlet face; one or more slots, each of the one or more slots comprising one or more slot inlets extending between the one or more slot inlets and the outlet face; a plurality of feedholes extending between the inlet face and the one or more slot inlets; and a central opening configured to receive a matrix die. Extrusion die apparatus and methods of manufacturing honeycomb bodies are also disclosed.

A method of fabricating a balloon catheter configuration is provided, the method comprises: preparing one catheter body, the catheter body comprises one internal tube, one external tube, and one stripping agent; the internal tube comprises one longitudinal groove and one drain passageway, wherein the longitudinal groove is configured in the exterior surface of the internal tube, the drain passageway is configured inside the internal tube, the external tube covers the internal tube, and the stripping agent is configured between the internal tube and the external tube; removing the internal tube of the catheter to allow one end of the external tube of the catheter body beyond one end of the internal tube adjacent to the external tube; folding the end of the external tube toward the axial center of the catheter; and attaching the end of the external tube to one part of the inner wall of the drain passageway.

A method of fabricating a balloon catheter configuration is provided, the method comprises: preparing one catheter body, the catheter body comprises one internal tube, one external tube, and one stripping agent; the internal tube comprises one longitudinal groove and one drain passageway, wherein the longitudinal groove is configured in the exterior surface of the internal tube, the drain passageway is configured inside the internal tube, the external tube covers the internal tube, and the stripping agent is configured between the internal tube and the external tube; removing the internal tube of the catheter to allow one end of the external tube of the catheter body beyond one end of the internal tube adjacent to the external tube; folding the end of the external tube toward the axial center of the catheter; and attaching the end of the external tube to one part of the inner wall of the drain passageway.

The present invention relates to a device for controlling the temperature of a component and a method of production thereof. The device includes an elongate basic profile that defines a plurality of fluid flow channels in its interior. The fluid flow channels are arranged in series and separated by webs. The elongate basic profile extrudes from a plastic material. The device includes a connection unit connected to the basic profile and designed to direct fluid into the basic profile or out of the basic profile. The connection unit is formed partially or completely from a transparent plastic material.

A method for manufacturing a cylindrical honeycomb fired body including: preparing a cylindrical honeycomb formed body; obtaining a cylindrical honeycomb dried body by drying the cylindrical honeycomb formed body; calculating predetermined parameters (E.sub.AVE1, E.sub.AVE2, E.sub.AVE3 and E.sub.AVE4) from average values of distance between a center of gravity position O and an outer peripheral contour in a plurality of predetermined angle ranges; specifying a minimum value of the predetermined parameters; obtaining a cylindrical honeycomb fired body by placing the cylindrical honeycomb dried body on a shelf plate and firing it while passing it through a continuous firing furnace, such that the direction in which the cells of the cylindrical honeycomb dried body extend vertically, and a particular location on the outer peripheral side surface determined according to the minimum value is positioned at the front.

A method for manufacturing a cylindrical honeycomb fired body including: preparing a cylindrical honeycomb formed body; obtaining a cylindrical honeycomb dried body by drying the cylindrical honeycomb formed body; calculating predetermined parameters (E.sub.AVE1, E.sub.AVE2, E.sub.AVE3 and E.sub.AVE4) from average values of distance between a center of gravity position O and an outer peripheral contour in a plurality of predetermined angle ranges; specifying a minimum value of the predetermined parameters; obtaining a cylindrical honeycomb fired body by placing the cylindrical honeycomb dried body on a shelf plate and firing it while passing it through a continuous firing furnace, such that the direction in which the cells of the cylindrical honeycomb dried body extend vertically, and a particular location on the outer peripheral side surface determined according to the minimum value is positioned at the front.

A single or multiple lumen catheter is disclosed which includes an expandable lumen. The expandable lumen is movable from a collapsed or sealed configuration to an open or expanded configuration. In the open configuration, the expandable lumen is dimensioned to receive a guidewire or stylet or facilitate the introduction of fluids into a patient.

A single or multiple lumen catheter is disclosed which includes an expandable lumen. The expandable lumen is movable from a collapsed or sealed configuration to an open or expanded configuration. In the open configuration, the expandable lumen is dimensioned to receive a guidewire or stylet or facilitate the introduction of fluids into a patient.

Drug delivery devices having a drug-permeable component and methods of making and using the same are provided. Drug delivery devices include a housing having a first and second wall structures that are adjacent one another and together form a tube defining a drug reservoir lumen. The second wall structure, or both the first wall structure and the second wall structure, are permeable to water, and the first wall structure is impermeable to the drug while the second wall structure is permeable to the drug, such that the drug is releasable in vivo by diffusion through the second wall structure.