Needle storage magazine assembly
Inventors
Srinivasan, Sudarsan • Schiff, David R. • Lawson, Stephan • LIMAYE, AMIT UDAY • ZUSCHLAG, Matthew E. • VANROYEN, Donald
Assignees
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Publication Number
US-11357929-B2
Publication Date
2022-06-14
Expiration Date
Abstract
A magazine assembly (1) that stores a plurality of needles (56) configured to engage a medication pen (2) via an adapter (4) for medication delivery, the magazine assembly (1) comprising a magazine housing (20) enclosing a plurality of hub chambers (22) each enclosing one of a plurality of needle hubs (50), a connector (28) in each of the plurality of hub chambers (22), each connector (28) engages one of the plurality of needle hubs (50), and a plurality of enclosures (30) each sealing the plurality of hub chambers (22), wherein a selected enclosure of the plurality of enclosures (30) is removed to expose a selected needle hub (52) of the plurality of needle hubs (50), the adapter (4) attaches to the medication pen (2) to engage the selected needle hub (52) while disengaging the selected needle hub (52) from the hub chamber (22), and the selected needle hub (52) is removed from the magazine housing (20) to prepare the medication pen (2) for medication delivery.
Core Innovation
The pen needle assembly engages a medication pen for medication delivery and includes a needle hub having a fluid passage, an adapter configured to couple the medication pen and needle hub, an adapter septum, and an adapter cannula fixed to the adapter. The adapter septum is closed when the needle hub is not engaged and opens upon engagement to provide fluid communication between the needle hub and adapter.
The described magazine stores individually sealed needle hubs in separate chambers and couples a selected hub to a medication pen through an adapter. Hub engagement compresses the adapter septum, allowing the adapter cannula to pierce it and establish sealed fluid communication. The background section is not included in the provided content, so the problem being solved is not explicitly described in patent.
Claims Coverage
The claims include two independent claims covering two inventive features of pen needle assemblies configured to engage a medication pen for medication delivery.
Adapter septum opening upon needle hub engagement
A needle hub having a fluid passage couples to an adapter that couples to the medication pen and the needle hub, wherein the adapter includes an adapter septum and a fixed adapter cannula. The adapter septum is closed when the needle hub is not engaged to the adapter and opens upon hub engagement to provide fluid communication between the needle hub and adapter.
Adapter cannula extending through the adapter septum
A needle hub includes a fluid passage, a cannula extending from a distal end, and a proximal coupling member. When the needle hub is engaged to the adapter, the adapter cannula extends through the adapter septum to provide fluid communication between the needle hub and adapter.
The two independent claims cover pen needle assemblies that couple a medication pen and needle hub through an adapter, wherein needle hub engagement opens the adapter septum and extends the adapter cannula through the septum to establish fluid communication.
Stated Advantages
Not explicitly described in patent.
Documented Applications
The pen needle assembly is configured to engage a medication pen for medication delivery.
The magazine stores individually sealed needle hubs in separate chambers and provides for coupling a selected hub to a medication pen through an adapter.
Additional embodiments provide a secure used-needle storage cavity and snap-fit mechanisms for hub pickup and disposal.
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