US 12,408,909 B2
Apparatus and method for enlarging an incision
Scott J. Perrow, Ishpeming, MI (US); Bruce Anthony Riceman, Leander, TX (US); and Jacob Anton Colantonio, Marquette, MI (US)
Assigned to XTANT MEDICAL HOLDINGS, INC., Belgrade, MT (US)
Filed by Xtant Medical Holdings, Inc., Belgrade, MT (US)
Filed on May 8, 2024, as Appl. No. 18/658,301.
Application 18/658,301 is a continuation of application No. 17/526,766, filed on Nov. 15, 2021, granted, now 11,980,356, issued on May 14, 2024.
Application 17/526,766 is a continuation of application No. 16/458,945, filed on Jul. 1, 2019, granted, now 11,172,919, issued on Nov. 16, 2021.
Application 16/458,945 is a continuation of application No. 15/991,502, filed on May 29, 2018, granted, now 10,357,239, issued on Jul. 23, 2019.
Application 15/991,502 is a continuation in part of application No. 15/382,192, filed on Dec. 16, 2016, granted, now 9,980,714, issued on May 29, 2018.
Application 15/382,192 is a continuation of application No. 14/832,592, filed on Aug. 21, 2015, granted, now 9,579,095, issued on Feb. 28, 2017.
Application 14/832,592 is a continuation in part of application No. 14/250,063, filed on Apr. 10, 2014, granted, now 9,113,852, issued on Aug. 25, 2015.
Application 14/250,063 is a continuation of application No. 13/415,673, filed on Mar. 8, 2012, granted, now 8,702,600, issued on Apr. 22, 2014.
Claims priority of provisional application 61/450,560, filed on Mar. 8, 2011.
Prior Publication US 2024/0285272 A1, Aug. 29, 2024
Int. Cl. A61B 17/02 (2006.01); A61B 1/32 (2006.01); A61B 17/00 (2006.01); A61B 90/00 (2016.01); A61B 90/30 (2016.01)
CPC A61B 17/0293 (2013.01) [A61B 1/32 (2013.01); A61B 17/0206 (2013.01); A61B 17/025 (2013.01); A61B 2017/00261 (2013.01); A61B 2017/00367 (2013.01); A61B 2017/00407 (2013.01); A61B 2017/00477 (2013.01); A61B 2017/0256 (2013.01); A61B 2017/0262 (2013.01); A61B 90/03 (2016.02); A61B 90/30 (2016.02); A61B 2090/306 (2016.02)] 15 Claims
OG exemplary drawing
 
1. A retractor configured to enlarge an incision, the retractor comprising:
a frame;
a plurality of tissue engaging members configured for insertion into an incision;
a plurality of sliders configured to connect the tissue engaging members to the frame, each slider being shiftable between an extended position and a retracted position,
wherein each slider is selectively shiftable between the extended position and the retracted position; and
a worm screw engaged with a worm gear and rotatable in a first direction to cause the worm gear to rotate in a retracting direction, the worm screw being rotatable in an opposite, second direction to cause the worm gear to rotate a drive member associated with one of the sliders in an extending direction.