US 12,336,710 B2
Extraction device for bone staples
Riccardo Bianchi, Castel San Pietro (CH); Sascha Berberich, Castel San Pietro (CH); and Francesco Siccardi, Castel San Pietro (CH)
Assigned to Medacta International SA, Castel San Pietro (CH)
Appl. No. 17/774,291
Filed by MEDACTA INTERNATIONAL SA, Castel San Pietro (CH)
PCT Filed Nov. 4, 2020, PCT No. PCT/IB2020/060339
§ 371(c)(1), (2) Date May 4, 2022,
PCT Pub. No. WO2021/090185, PCT Pub. Date May 14, 2021.
Claims priority of application No. 102019000020392 (IT), filed on Nov. 5, 2019.
Prior Publication US 2022/0387029 A1, Dec. 8, 2022
Int. Cl. A61B 17/076 (2006.01); A61B 17/064 (2006.01); A61B 17/29 (2006.01)
CPC A61B 17/076 (2013.01) [A61B 17/0642 (2013.01); A61B 2017/2923 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An extraction system comprising an extraction device and a bone staple, wherein the bone staple is provided with a first element comprising a plate, having a central through hole, from which four tips extend and a second element, having a central through hole, configured to be placed, in contact, below the plate of the first element and enclosed inside a volume defined by the four tips, said extraction device comprising a main gripping body which has a proximal end and a distal end, a central rod comprising a proximal end and a distal end, said distal end of said central rod being adapted to directly couple with the first element of said staple; said central rod being axially slidable within the main gripping body between a first position and a second position; wherein the extraction device further comprises movement means for moving the central rod and a plurality of abutment elements protruding axially from said distal end of the main gripping body and arranged circumferentially around the central rod, adapted to act on the second element of the staple to obtain, in cooperation with the movement of the central rod, separation of the second element of the staple from the first element of the staple and removal of the first element.