US 11,707,569 B2
Front-loadable fluid transfer assemblies and related medical fluid transfer systems and methods
Maxwell Jerad Daly, Redlands, CA (US); and Peter G. Piferi, Orange, CA (US)
Assigned to ClearPoint Neuro, Inc., Solana Beach, CA (US)
Filed by ClearPoint Neuro, Inc., Irvine, CA (US)
Filed on Sep. 25, 2020, as Appl. No. 17/32,140.
Claims priority of provisional application 63/076,008, filed on Sep. 9, 2020.
Claims priority of provisional application 62/950,521, filed on Dec. 19, 2019.
Prior Publication US 2021/0187188 A1, Jun. 24, 2021
Int. Cl. A61M 5/145 (2006.01); A61K 35/28 (2015.01); A61M 5/315 (2006.01); A61M 25/01 (2006.01); A61M 39/10 (2006.01); A61M 5/14 (2006.01)
CPC A61M 5/1452 (2013.01) [A61K 35/28 (2013.01); A61M 5/31513 (2013.01); A61M 5/31528 (2013.01); A61M 25/0102 (2013.01); A61M 39/10 (2013.01); A61M 2005/1403 (2013.01); A61M 2025/0166 (2013.01); A61M 2202/09 (2013.01); A61M 2205/0266 (2013.01); A61M 2210/0693 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An intrabody fluid transfer system comprising:
a cannula assembly comprising a proximal end with a luer connector and having a longitudinally opposing distal end with an open channel extending therethrough; and
a plunger assembly coupled to the cannula assembly, the plunger assembly comprising a stylet that extends in the open channel of the cannula assembly to position a distal end of the stylet adjacent the distal end of the cannula assembly, wherein the open channel and the stylet cooperate to define a fluid channel, and wherein the stylet provides or is attached to a drive member of the plunger assembly to controllably retract and extend the stylet relative to the cannula assembly whereby longitudinal retraction of the stylet in the open channel of the cannula assembly creates a vacuum sufficient to front-load fluid into the open channel at the distal end of the cannula assembly.