US 12,343,042 B2
Pericardial puncture device and method
Brock Miller, Toronto (CA); Matthew Gravett, Milton (CA); and Kai-Lon Fok, Mississauga (CA)
Assigned to Boston Scientific Medical Device Limited, Galway (IE)
Filed by Boston Scientific Medical Device Limited, Galway (IE)
Filed on Jul. 14, 2021, as Appl. No. 17/375,382.
Claims priority of provisional application 63/052,692, filed on Jul. 16, 2020.
Prior Publication US 2022/0015804 A1, Jan. 20, 2022
Int. Cl. A61B 17/34 (2006.01)
CPC A61B 17/3496 (2013.01) [A61B 17/3423 (2013.01); A61B 2017/3425 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A pericardial puncture device comprising:
an introducer extending along a longitudinal axis between an introducer proximal portion defining an introducer proximal end and an introducer distal portion defining an introducer distal end, wherein the introducer has an introducer lumen extending between the introducer proximal end and the introducer distal end;
a needle received in the introducer lumen and extending between a needle proximal portion and a needle distal portion having a sharp distal tip, wherein the needle is movable from a retracted configuration to an advanced configuration, wherein in the retracted configuration the sharp distal tip is within the introducer lumen and shy of the introducer distal end, and wherein in the advanced configuration the sharp distal tip is outside of the introducer lumen and proud of the introducer distal end;
an actuator mounted to the introducer proximal portion and engaged with the needle proximal portion, wherein the actuator comprises a handle that is rotatable in a first direction with respect to the introducer to drive movement of the needle from the retracted configuration towards the advanced configuration, and wherein the handle is further rotatable in a second direction with respect to the introducer to drive movement of the needle from the advanced configuration towards the retracted configuration, wherein the actuator comprises a lead screw mounted to the handle, wherein the lead screw is received in the introducer proximal portion and the handle extends proud of the introducer proximal portion, and wherein rotation of the handle in the first direction drives rotation of the lead screw in the first direction, wherein the needle proximal portion comprises a lead nut; and the lead screw is received in and engaged with the lead nut to drive movement of the needle from the retracted configuration to the advanced configuration by rotation of the handle.