US 12,167,869 B2
Flexible intraosseous obturator
Eric W. Lindekugel, Salt Lake City, UT (US)
Assigned to Bard Access Systems, Inc., Salt Lake City, UT (US)
Filed by Bard Access Systems, Inc., Salt Lake City, UT (US)
Filed on Feb. 24, 2021, as Appl. No. 17/183,820.
Claims priority of provisional application 62/983,434, filed on Feb. 28, 2020.
Prior Publication US 2021/0267637 A1, Sep. 2, 2021
Int. Cl. A61B 17/34 (2006.01)
CPC A61B 17/3472 (2013.01) [A61B 17/3423 (2013.01); A61B 17/3496 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An access assembly for use with an intraosseous access device, comprising:
a needle including a rounded distal region extending radially inward toward a central axis of the needle to define a beveled distal opening, the needle including a needle lumen;
an obturator initially disposed in the needle lumen, the obturator formed of a flexible material configured to prevent material from entering the needle lumen by conforming to an inner profile of the needle lumen;
a needle hub attached to the needle, the needle hub including an external keyed coupling surface extending circumferentially around the needle hub; and
an obturator hub attached to the obturator, the obturator hub including an internal keyed coupling surface extending circumferentially around a cavity of the obturator hub,
wherein the internal keyed coupling surface is configured to operatively couple with the external keyed coupling surface to define a fixed angular orientation between the needle hub and the obturator hub.