Abstract: A collar for a connection between a resilient tube and a rigid barbed connector. The collar comprises a generally cylindrical sleeve member having interior annular ridges. When the collar is installed on the tube surrounding the barbed connector, the ridges press into the tube and prevent expansion of the tube to prevent leakage between the tube and the connector.

Abstract: An assembly and a method for providing a sterile connection between a vessel and a bag. The assembly includes a previously sterilized bag connected to tubing which is clamped closed. The tubing is connected to the vessel. The vessel and the tubing distally of the clamp are sterilized together. The clamp is then opened to allow material to pass from the vessel to the bag in a sterile environment.

Abstract: A system for permanently associating identifying indicia with a previously manufactured product. Silicone sheet material having imbedded therein a quantity of thermally activatable crosslinking catalyst is secured to the product. An indici-containing element is placed on the silicone sheet material and is then covered by another piece of the same type of silicone sheet material. Heat is then applied to the assembly to cause the pieces of silicone sheet material to crosslink together and encapsulate the indicia-containing element.

Abstract: A method for forming, in a single step, a silicone manifold interconnecting a plurality of silicone tubes is performed by providing a silicone insert piece having a network of interior channels dimensioned the same as the silicone tube interiors. Solid non-silicone plugs are inserted into the insert piece and the ends of the silicone tubes and the resulting assembly is placed in a mold cavity. Liquid silicone is added to the mold cavity and is then heated and cured to form the desired manifold interconnecting the tubes. The manifold is then removed from the mold and a source of pressurized air is used to blow out the plugs.