Becton Dickinson and Company Limited

Norman J Hutton

Michael Iskra

Danielle M DeSalvo

Nicholas A Grippi

Jamieson W M Crawford

Gregory L Lusardi

Donald J Carano

Judith A Reichenbach

Paul R Soskey

Brian F Ahern

Margie M Ferguson

Danielle Desalvo

Danielle M Desalvo

A tube assembly includes an inner tube telescoped into an outer tube. The inner tube is dimensioned to define a substantially annular space between the inner and outer tubes. Portions of the inner tube near its open top are configured to permit venting as the inner tube is inserted into the open top. However, the vent is closed during insertion of a closure into the tube assembly or prior to inserting a closure into the tube assembly.

Collection assembly

A co-injection process is provided for fabricating improved multi-layer containers, including but not limited to blood collection tubes, evacuated blood collection tubes, culture bottles, centrifuges tubes, and syringe barrels. The container includes a tube () having a bottom wall () and a side wall () with an open end (). The container can be provided with a stopper having an upper portion () and a skirt with an outside portion (), a well () and a cavity (). The tube and stopper assembly can be used for medical purposes including containing a blood sample within an enclosed interior space ().

Process for forming multilayer containers

A plurality of container assemblies are provided. Each container assembly has substantially identical external dimensions. However, the internal volumes of certain container assemblies differ from the internal volumes of other container assemblies. The container assemblies are configured in accordance with the required volume of material to be collected or maintained in the respective container assemblies and to enable uniform head spaces despite the different volumes of materials in the respective container assemblies. Each container assembly may have an inner container and an outer container. The inner and outer containers may be assembled together or formed integrally by molding.

The present invention is a collection container assembly comprising a container having a wall space between the inner and outer wall of said tube whereby the external dimensions of the container are substantially the same as a standard-sized blood collection tube but with a reduced internal volume.

Collection container assembly

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Franklin Lakes, NJ, United States of America

Norman J Hutton