US 12,290,287 B2
Disposable interspinous implant insertion instrument
Jeff Slover, Lee's Summit, MO (US); Adam Frock, Lenexa, KS (US); Todd Moseley, Olathe, KS (US); Jeffrey David Lee, Prairie Village, KS (US); Christian Aragonez, Kansas City, MO (US); Adam Rogers, Overland Park, KS (US); and Melissa Frock, Lenexa, KS (US)
Assigned to Spinal Simplicity, LLC, Overland Park, KS (US)
Filed by Spinal Simplicity, LLC, Overland Park, KS (US)
Filed on May 2, 2023, as Appl. No. 18/311,048.
Application 18/311,048 is a continuation of application No. 17/716,833, filed on Apr. 8, 2022, granted, now 11,672,572.
Prior Publication US 2023/0320764 A1, Oct. 12, 2023
Int. Cl. A61B 17/70 (2006.01); A61F 2/46 (2006.01)
CPC A61B 17/7067 (2013.01) [A61B 17/7074 (2013.01); A61F 2/4611 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An insertion instrument for inserting an implant, the insertion instrument comprising:
a handle assembly comprising:
a handle knob comprising a distally located circumferentially extending groove;
an elongated main body extending distally away from the handle knob; and
a lumen extending from a proximal end of the handle knob to a distal end of the elongated main body,
wherein the distal end of the elongated main body is adapted for engaging with an implant;
a plunger assembly slidably received within the lumen of the handle assembly, the plunger assembly comprising a plunger knob and a plunger shaft, wherein a distal end of the plunger shaft is configured to engage the implant; and
a spring-loaded drive assembly comprising:
an outer sleeve comprising at least one recessed region;
an inner shaft comprising:
an inner shaft knob comprising at least one retaining pin opening aligned with the distally located circumferentially extending groove;
an inner shaft main body;
at least one drive lobe comprising a raised region on an exterior circumference of the inner shaft main body;
at least one retaining pin,
wherein the at least one retaining pin is insertable into the at least one retaining pin opening and is further received by the distally located circumferentially extending groove, operatively coupling the inner shaft to the handle knob; and
a locking pin,
wherein the spring-loaded drive assembly comprises a first extended position and second retracted position, wherein the locking pin is located proximally of the at least one drive lobe in the second retracted position, and wherein the locking pin is located adjacent to the at least one drive lobe in the first extended position, and
wherein the at least one drive lobe is received within the at least one recessed region in the second retracted position.