US 12,256,969 B2
Minimally invasive surgery osteotomy fragment shifter, stabilizer, and targeter
Zachary Korman, Memphis, TN (US); and Shannon D. Cummings, Hernando, MS (US)
Assigned to WRIGHT MEDICAL TECHNOLOGY, INC., Memphis, TN (US)
Filed by WRIGHT MEDICAL TECHNOLOGY, INC., Memphis, TN (US)
Filed on Apr. 26, 2022, as Appl. No. 17/660,718.
Claims priority of provisional application 63/211,597, filed on Jun. 17, 2021.
Prior Publication US 2022/0401139 A1, Dec. 22, 2022
Int. Cl. A61B 17/17 (2006.01); A61B 17/66 (2006.01); A61B 17/88 (2006.01)
CPC A61B 17/8866 (2013.01) [A61B 17/1775 (2016.11); A61B 17/66 (2013.01); A61B 17/8897 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A system, comprising:
a first screw mechanism including:
a first block;
a first screw threaded through the first block and including a first skin-interfacing portion; and
an intramedullary (IM) member extending from and attached to the first block and including an end portion configured to be inserted into an intramedullary canal of a first bone fragment, wherein the first skin-interfacing portion is arranged and configured to generate a first lateral force against a second bone fragment adjacent to the first bone fragment, and a holding force provided by the end portion when the first screw is rotated and the end portion is located in the intramedullary canal; and
a second screw mechanism including:
a second block fixed to the first block; and
a second screw threaded through the second block and including a second skin-interfacing portion that is arranged and configured to generate a second, opposing lateral force against the first bone fragment so as to provide the holding force of the end portion when the second screw is rotated to move the second skin-interfacing portion.