US 12,329,658 B2
Graft delivery device with accurate dispensing
Adam D. Glaser, Germantown, TN (US); Andrea L. Hartman, Memphis, TN (US); Jeffrey L. Gum, Peewee Valley, KY (US); Ronald A. Lehman, Jr., Tenafly, NJ (US); Christopher R. Good, Great Falls, VA (US); and Douglas John Fox, Jr., Phoenix, AZ (US)
Assigned to WARSAW ORTHOPEDIC, INC., Warsaw, IN (US)
Filed by Warsaw Orthopedic, Inc., Warsaw, IN (US)
Filed on Feb. 14, 2022, as Appl. No. 17/670,930.
Prior Publication US 2023/0255789 A1, Aug. 17, 2023
Int. Cl. A61B 17/88 (2006.01); A61F 2/46 (2006.01); A61B 17/00 (2006.01)
CPC A61F 2/4601 (2013.01) [A61B 17/8825 (2013.01); A61B 17/8827 (2013.01); A61B 2017/00407 (2013.01); A61F 2002/4632 (2013.01); A61F 2002/4663 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A device for delivering graft material to a target site, the device comprising:
an actuation mechanism;
a tube defining a lumen and an open end, the tube configured to receive graft material through the open end, wherein the tube comprises:
a pressure relief opening disposed in a wall of the tube, the pressure relief opening defining a pressure chamber between the open end and the pressure relief opening; and
a dosage window;
a plunger positioned within the lumen of the tube and coupled to the actuation mechanism such that at least a portion of the plunger or the actuation mechanism is visible through the dosage window, wherein the actuation mechanism is configured to advance the plunger toward the open end to deliver graft material through the open end; and
wherein the plunger comprises a spring configured to provide a longitudinal force to the plunger in a direction away from the open end.