System for closed transfer of fluids
AssigneeBecton, Dickinson and Company
InventorsMilan Ivosevic, Paul Paia Marici
Life of this patent
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Abstract
A system for the closed transfer of fluids that provides substantially leak-proof sealing and pressure equalization during engagement of a cannula with a vial, during transfer of a substance from a vial chamber to a barrel chamber via the cannula, and during disengagement of the cannula from the vial is disclosed. The leak-proof sealing of the system substantially prevents leakage of both air and liquid during use of the system. The system of the present disclosure also permits pressure equalization between a vial and the system when the system is attached to the vial. The system is compatible with a needle and syringe assembly for accessing a medication contained within a vial for administering the medication to a patient.
Claims3
A syringe adapter comprising:
- a cannula attachable to a first container having a first chamber such that the cannula is in fluid communication with the first chamber of the first container;
- a syringe adapter housing including a first connection element, the first connection element engageable with a second connection element of a vial adapter to secure the syringe adapter to the vial adapter;
- a cannula seal comprising a resilient sleeve enclosing at least a portion of the cannula, the cannula seal disposed within the syringe adapter housing;
- a spring disposed over the cannula such that the spring is positioned between the cannula and the cannula seal, wherein the spring provides a biasing force;
- an intake air filter disposed within the syringe adapter housing;
- and
- a gliding ring positioned at least partially between the cannula seal and the syringe adapter housing,
- wherein the gliding ring is spaced from the spring.
Dependencies are inferred from the claim text.