US 9,808,243 B2
Staples for generating and applying compression within a body
Matthew Palmer, Cambridge, MA (US); Matthew Fonte, Concord, MA (US); and Robert Devaney, Auburndale, MA (US)
Assigned to Arthrex, Inc., Naples, FL (US)
Filed by MX Orthopedics, Corp., Billerica, MA (US)
Filed on Nov. 13, 2014, as Appl. No. 14/540,351.
Claims priority of provisional application 61/903,820, filed on Nov. 13, 2013.
Prior Publication US 2015/0133940 A1, May 14, 2015
Int. Cl. A61B 17/06 (2006.01); A61B 17/064 (2006.01); A61B 17/068 (2006.01); A61B 17/72 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/0642 (2013.01) [A61B 17/0682 (2013.01); A61B 17/7266 (2013.01); A61B 17/7291 (2013.01); A61B 2017/00867 (2013.01); A61B 2017/00871 (2013.01); A61B 2017/00946 (2013.01); A61B 2017/0645 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A staple comprising:
a malleable bridge configured to be inelastically deformed;
a first leg connected to said bridge and configured to be elastically bendable; and
a second leg connected to said bridge and configured to be elastically bendable;
said first and second legs being connected to said bridge so that they are angled toward one another when they are in an unstrained state,
wherein said bridge and said first and second legs are integrally formed out of a single piece of shape memory material so as to form a monolithic staple,
wherein said shape memory material is processed so that said bridge is fully annealed Nitinol or martensitic Nitinol with an austenite start temperature greater than body temperature, and said first and second legs are austenite but capable of forming stress-induced martensite,
such that when said bridge is inelastically deformed, and said first and second legs are elastically strained so that they extend substantially parallel to one another, and said first and second legs are disposed in appropriate holes on opposing sides of a fracture line, and when the strain on said staple is thereafter released, compression will be provided across the fracture line by said first and second legs.