Threaded medication cartridge
AssigneeBecton, Dickinson and Company
InventorsLennox Watts, Roger W. Hoeck, John Linfante, Daniel A. Walters, Carlos A. Bustamante
Life of this patent
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Abstract
A medication cartridge for use with a medication delivery pen having a cartridge body with threads at its distal end for receiving a pen-needle. The threads are either integrally molded in the cartridge or on the outer surface of a cap used to retain a septum on the distal end of the cartridge body. The cartridge body of the medication cartridge also includes threads or a snap-ring at its proximal end for attaching the medication cartridge directly to a pen body housing of the medication delivery pen without the need for a medication cartridge holder.
Claims3
A medication cartridge comprising:
- a cartridge body having a distal end, a proximal end and a hub attached to said distal end, said hub including a set of threads and an outer sleeve attached to an inner sleeve by a plurality of connecting ribs having an opening between each rib;
- a septum for mounting on said hub;
- and
- a septum retention cap for retaining said septum on said hub, said septum retention cap including a plurality of legs with each leg being received in one of said openings in said hub to retain said septum on said hub.
Dependencies are inferred from the claim text.