Dual needle apparatus for medication delivery

A dual needle apparatus comprising:

• a luer component configured to couple to a reservoir to form a luer lock fitting, wherein the reservoir comprises a quantity of medication;
• and
• at least two needles of differential length,
• wherein the at least two needles are coupled to the luer component,
• wherein the at least two needles comprise a first needle longer than a second needle with respect to a longitudinal axis of the dual needle apparatus,
• wherein, when the luer component is coupled to the reservoir, the first needle is able to access the quantity of medication,
• wherein the first needle is configured to deliver at least a portion of the quantity of medication to a medication bladder,
• wherein an end of the second needle is positioned proximate to a vent to an external environment such that the second needle is in fluid communication with an interior cavity of the medication bladder and with the external environment via the vent, and
• wherein, when the first needle is delivering medication to the medication bladder, the second needle vents at least one of air or medication from the medication bladder to the external environment via the vent.

A method comprising:

• inserting a syringe assembly into an input port of a medication bladder, the syringe assembly comprising:
• a dual needle apparatus comprising a first needle and a second needle, the first needle longer than the second needle;
• and
• a reservoir comprising a quantity of medication;
• causing at least the quantity of medication to flow from the reservoir to the medication bladder through the first needle,
• wherein the second needle facilitates a release of pressure caused by the flow of medication through the first needle into the medication bladder at least by facilitating the release of at least one of air or medication to an external environment via a vent in fluid communication with the second needle.

A method comprising:

• depleting air from a syringe assembly, the syringe assembly comprising:
• a dual needle apparatus comprising a first needle and a second needle, the first needle longer than the second needle;
• and
• a reservoir configured to hold a quantity of medication;
• inserting the syringe assembly into a vial, the vial comprising at least the quantity of medication;
• and
• extracting the medication from the vial to the reservoir through the first needle,
• wherein, when extracting the medication from the vial, the second needle is configured to facilitate movement of the medication from the vial at least by allowing air from an external environment to pass into the vial during extraction, the air creating a pressure against the medication, wherein the air passes into the vial via a vent in fluid communication with the second needle.