US 11,903,623 B2
Intramedullary threaded nail for radial cortical fixation
Lloyd P. Champagne, Phoenix, AZ (US); Jozef Zoldos, Phoenix, CA (US); Richard Thomas Briganti, Bala Cynwyd, PA (US); and Andrew J. Leither, Akron, OH (US)
Assigned to ExsoMed Corporation, Aliso Viejo, CA (US)
Filed by ExsoMed Corporation, Aliso Viejo, CA (US)
Filed on Nov. 8, 2021, as Appl. No. 17/454,028.
Application 17/454,028 is a division of application No. 16/805,485, filed on Feb. 28, 2020, granted, now 11,191,576.
Application 16/805,485 is a continuation of application No. PCT/US2018/049342, filed on Sep. 4, 2018.
Claims priority of provisional application 62/554,123, filed on Sep. 5, 2017.
Prior Publication US 2022/0054175 A1, Feb. 24, 2022
Int. Cl. A61B 17/72 (2006.01); A61B 17/86 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/7291 (2013.01) [A61B 17/864 (2013.01); A61B 17/8635 (2013.01); A61B 17/8645 (2013.01); A61B 2017/00867 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method of fixation of a bone having an intramedullary canal about an axis and a head and which is a metacarpal or a metatarsal, the method comprising:
surgically exposing the bone;
forming a hole in the bone extending along the axis to expose a canal having an internal surface of cortical bone;
inserting a guide wire in the hole;
placing an implant having a cannulation over the guide wire and screwing the implant into the hole in the bone, the implant further including a first end with a first external diameter and a second end with a second external diameter and a transition portion between the first end and the second end, the transition portion including at least one cutting flute and the second end including at least one cutting flute, and the first end including a torque driving feature, the implant having a thread on a first section nearer to the first end and on a second section nearer to the second end, whereby the thread of the implant fixes the implant to the internal surface of the cortical bone.