US 12,171,464 B2
Fixing device
Mukesh Kumar, Pergine Valsugana (IT); Stefano Rappo, Pergine Valsugana (IT); Massimiliano Tomaselli, Pergine Valsugana (IT); Gianluca Zappini, Pergine Valsugana (IT); Federico Scarpulla, Pergine Valsugana (IT); and Giacomo Erani, Pergine Valsugana (IT)
Assigned to LINCOTEK TRENTO S.P.A., Pergine Valsugana (IT)
Filed by Lincotek Trento S.p.A., Pergine Valsugana (IT)
Filed on Nov. 17, 2022, as Appl. No. 17/989,029.
Claims priority of application No. 102022000009407 (IT), filed on May 6, 2022.
Prior Publication US 2023/0355278 A1, Nov. 9, 2023
Int. Cl. A61B 17/84 (2006.01); A61B 17/68 (2006.01)
CPC A61B 17/686 (2013.01) 21 Claims
OG exemplary drawing
 
1. A fixing device, comprising:
an anchoring body including a constraint portion, engageable, in use, in a respective bone seat, and extending along a first direction or longitudinal direction, and a head portion, said constraint portion having an overall cross-section and comprising a core or main body comprising at least a central portion and at least two protruding or projecting portions extending from said central portion, said core or main body delimiting a first cross-section,
wherein said at least two protruding or projecting portions define with said central portion respective housing or containment areas or spaces,
wherein said constraint portion further comprises a complementary or filling structure, placed or housed in said housing or containment areas or spaces, delimiting a second cross-section which defines, with said first cross-section, said overall cross-section of said constraint portion, wherein said complementary or filling structure comprises a porous or trabecular structure, and
wherein said fixing device, including said filling structure, is made of metallic material,
wherein said second cross-section has an extent between 25% and 65% with respect to the extent of said overall cross-section, and
wherein said constraint portion has an apical engaging end and a distal end, said distal end being connected to said head portion, wherein said porous or trabecular structure is present from said apical engaging end to said distal end.