Patent ID: 8512309
Filing Date: 2013-08-20
Classification: A61J

Abstract:
1. A vial adapter element for use in a drug mixing system comprising: a vial connection port comprising a body, said body comprising an inner wall and said vial connection port comprising a vial abutment surface extending in wards from and transverse to said inner wall; a hollow vial puncturing spike that protrudes into said vial connection port and is in fluid communication with a syringe-adapter-element connection port that extends from said body; a counterbore formed in said vial abutment surface; a plurality of resilient tongues spaced around said inner wall of said body, said tongues being located in gaps formed in the inner wall of said body; and a biasing device placed in said counterbore, said biasing device protruding proximally beyond said vial abutment surface and arranged to create a biasing force towards said resilient tongues.