US 11,986,441 B2
Syringe adapter for closed transfer of fluids
Laurie Sanders, Glen Ridge, NJ (US)
Assigned to Becton Dickinson and Company Limited, Dun Laoghaire (IE)
Filed by Becton Dickinson and Company Limited, Dun Laoghaire (IE)
Filed on Jan. 15, 2018, as Appl. No. 15/871,330.
Claims priority of provisional application 62/447,038, filed on Jan. 17, 2017.
Prior Publication US 2018/0200147 A1, Jul. 19, 2018
Int. Cl. A61J 1/20 (2006.01); A61J 1/14 (2023.01); A61M 5/34 (2006.01); A61M 39/10 (2006.01); A61M 5/31 (2006.01)
CPC A61J 1/2096 (2013.01) [A61J 1/1406 (2013.01); A61J 1/201 (2015.05); A61J 1/2055 (2015.05); A61J 1/2065 (2015.05); A61M 5/34 (2013.01); A61M 39/10 (2013.01); A61M 2005/3103 (2013.01); A61M 2039/1072 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A syringe adapter comprising:
a housing having a first end and a second end, the first end configured to be secured to a first container;
a cannula having a first end and a second end, the second end of the cannula positioned within the housing; and
a collet having a first end and a second end, at least a portion of the collet received within the housing, the collet comprising a body defining a passageway, a membrane received by the passageway, and a locking member connected to the body of the collet,
the membrane comprising a body having a first end, a second end, and an annular recessed portion between the first end and the second end,
the collet is movable from a first position where the locking member is open to receive a mating connector to a second position where radially outward movement of the locking member is restricted,
wherein the passageway of the body of the collet comprises:
a first counterbore;
a second counterbore engaging a vertical sidewall of the body of the membrane, such that the membrane extends distally beyond the second counterbore; and
an intermediate portion positioned between the first counterbore and the second counterbore, the intermediate portion having an internal diameter less than an internal diameter of the first counterbore and less than an internal diameter of the second counterbore,
wherein the intermediate portion comprises a narrowed portion, which comprises a sloped annular inner surface that compresses the annular recessed portion of the body of the membrane, the narrowed portion having a smaller diameter than a remaining portion of the intermediate portion of the passageway.