Patent ID: 6997916

Claim:
A fluid transfer system, comprising: a cylindrical member having a closed end and an open end, said closed end fitted with a luer for connection to a fluid store or an intravenous needle, a cannula extending from said luer into said member to effect a fluid conduit with said luer, said member having a distal portion of a first diameter that extends from said closed end and a proximal portion of a second diameter that extends from said open end, said second diameter being larger than said first diameter, said first diameter being sized to accept a vacuum tube and said second diameter being sized to accept the neck and a portion of a fluid collection bottle; an adapter fittable into said member by insertion from said open end, said adapter having a base with a central opening, a cylindrical tube extending from said base in communication with said opening, said tube having a diameter slightly smaller than said first diameter and a part fittable partially into said distal portion of said member to provide a passage wherethrough a vacuum tube may be guided into said member to be pierced by said cannula so that a fluid communications path may be effected from said luer to the interior of the vacuum tube, said adapter having a noncontinuous circular wall having a cross-section smaller than said second diameter formed by adjacent sections extending from said base to encircle another part of said cylindrical tube that is not fitted into said distal portion of said member, the height of said wall substantially equaled to the length of said proximal portion.