US 11,998,719 B2
Fluid transfer device or set with retractable needle and septum
S. Ray Isaacson, Layton, UT (US); and Ralph L. Sonderegger, Farmington, UT (US)
Assigned to Becton, Dickinson and Company, Franklin Lakes, NJ (US)
Filed by Becton, Dickinson and Company, Franklin Lakes, NJ (US)
Filed on Jan. 25, 2021, as Appl. No. 17/157,764.
Application 17/157,764 is a division of application No. 16/269,323, filed on Feb. 6, 2019, granted, now 10,926,028.
Application 16/269,323 is a division of application No. 14/326,032, filed on Jul. 8, 2014, granted, now 10,232,110.
Prior Publication US 2021/0162123 A1, Jun. 3, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 5/162 (2006.01); A61M 5/158 (2006.01); A61M 25/06 (2006.01); A61M 39/04 (2006.01)
CPC A61M 5/1626 (2013.01) [A61M 5/158 (2013.01); A61M 25/0631 (2013.01); A61M 39/04 (2013.01); A61M 2005/1585 (2013.01); A61M 25/0637 (2013.01); A61M 2039/042 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A sealed retractable needle assembly, comprising:
a needle assembly comprised of a needle hub and a needle securely coupled to the needle hub;
a resiliently deflectable actuator arm extending from the needle hub and having an actuator button formed thereon;
a barrel having proximal and distal ends and a passage extending therebetween, wherein the needle assembly is slidably disposed within the passage and the needle assembly and the actuator arm are axially movable relative to the barrel from a distal position where the needle projects distally beyond the distal end of the barrel and a proximal position where the needle is entirely contained within the barrel, and wherein the barrel defines an aperture extending therethrough, which aperture engages the actuator button when the needle hub is in the distal position and the actuator button disengages the aperture when the actuator arm is resiliently deflected, wherein the actuator button comprises a first interlocking edge that extends proximally and the aperture comprises a corresponding second interlocking edge that extends distally, the first interlocking edge overlapping with the second interlocking edge when the needle hub is in the distal position to thereby block inward movement of the actuator button; and
a spring disposed in the barrel for propelling the needle assembly to the proximal position when the actuator arm is deflected and the actuator button disengages the aperture.